*** Calculated using a 1:1 final drive ratio (No Overdrive). Find many great new & used options and get the best deals for Big End Performance 32002 GM TH350/TH400 Street Torque Converter, 1900-2400 RPM at the best online prices at eBay! Free shipping for many products!. 75 overdrive. This gear ratio and tire diameter chart is meant to give you an approximation of ideal RPMs at highway speed (65 mph) for three situations: fuel economy, every day driving and increased towing power. The B&M 2,000-rpm stall for a 4L80E (left) looks similar to their 3,000 rpm Holeshot for a 700R4 (right), but there's a lot more than just the number of bolts connecting them to the flywheel that differ. In fact they are so similar many of the internal hard parts will DIRECTLY interchange between the two. This rpm is often MUCH higher than you would thinklike 5k or so. A 6000 RPM converter that is behind a stock engine may not go to 6000 RPM because the engine won’t make enough torque to get up to that point because of the load converter. That data consists of the ring gear and pinion gear ratio, the height of the tires (diameter from ground to top of the tire while mounted on the vehicle) and the transmission final gear ratio. @tobroketoretire The tires are 245/60R15-100S front and back. just add more gas and try to start it for a bit to get the gas going again When you require full. The Turbo 400 SSMega Monster transmission is tough enough to withstand the rigors of even the toughest street machines delivering tire-spinning shifts race after race. Most mild race cars will use between 3500 to 4500 stall speeds on. After blowing up dozens of 200's, i love the confidence it gives me. 943 at full weight. First consideration was to install a 700r4 with overdrive but didn't want to loose the beefy TH 400. The 2004R gear ratios are 2. what rear gears to run with. With the 3. what rear gears to run with. If you do go this way please keep us posted on how it came out. They use similar internals, exhaust manifolds and oil pans. 0T FSI engine by incorporating the OEM turbocharger assembly from the Audi S3 and coupling it with APR’s FSI Fueling Technology and expertly recalibrated engine management upgrade. When new, the transmission was likely programmed to upshift just past 5,000 rpm at full throttle. 41:1, with 205-75R14 tires did 23 MPG with a best of 26 mpg!. If you went the other way and changed the rear axle ratio, the engine would scream—4000 rpm at 75 mph with a 4. Our Trip to RPM Speedway Go-Karting in Stamford is a Highway to Fun 7/15/18 - By Ally Noel It’s been a little while since a new family entertainment venue opened in lower Fairfield County. 56:1 gear worked out to 2,075 RPM (both in overdrive). After moving here I aquired another vehicle to drive daily and swapped out the 3. 6l80e Torque Converter Problems. To determine the distance the vehicle will travel for one revolution of the engine by dividing the circumference of the tire by the combined gear ratio of the transmission and differential. 08:1 gear with a lower 4. The TCI® SUPER StreetFighter® Transmission for Chevy engine applications is tough enough to withstand the rigors of the toughest street machines up to 875+ horsepower with a non-supercharged system using pump gasoline. Switching over to GM`s beefy TH400 is a relatively easy change. The result will be reduced rpms at highway speeds and a little larger gap between gears but the first gear will be about the same. That is the same figure I got for the gear vendor, and the first figure was for just th400 with 1. Can those be driven comfortably down the highway? I know the rpms get high at 65 (2400 or so) and. The RPM at approximately 60 MPH with the 4. It is highly regarded for its supreme durability. 23 gears I have now, I run just over 2500 rpm at 60 mph. rpm = 72,441 / 28. Given the "E" designation, both of these gearboxes feature electrically-controlled lock up torque converters for lower cruising RPM and increased fuel efficiency. gm6-400 th400 chevy stock 1300-1500 stall torque converter transmission gmc. So the 42's become your overdrive!!. -comp cams pushrods-isky roller tappets-steel roller (delta) cam-comp cams steel rocker arms-msd ignition-custom headers. On the other hand, I wouldn't consider anything steeper than a 3. At some point, even the best transmissions need to be rebuilt. This rpm is often MUCH higher than you would thinklike 5k or so. 2s in this jeep with the same gearing and tire size and it always did well. That would make my final drive ratio 10. Im looking into replacing my getrag 6 speed for a sp400 kit. 52:1), and therefore they are a detriment to your off-the-line launch when using a small-block engine. 5% increase in torque to the wheels. First time builders will likely need a tech manual. With the correct gear choice and tire size having no OD is a non issue. 0L I6 that it replaced. I have 373s in the rear of my s10 with a th350. I looked at going to a 342. In addi­tion to 3- and 4-speed manual trans­missions, Pontiac also offered 2- and 3-speed automatic transmissions. * Required information. This TCI StreetFighter transmission. 2s in this jeep with the same gearing and tire size and it always did well. i plan on doing a lot of long road trips this summer. 48:1 first gear. B&M Tork Master 2400 2300-2500 RPM Hi Stall Torque Converter Suitable for VT 304 5lt V8 Holden Commodore 4 Speed Auto 4L60E B&M offers a wide range of performance torque converters to fit almost everybody’s needs. I can rev to 1800-2200 all day long and the compressor occasionally dis-engages/engages - as expected from a cycling clutch system, but I feel like this was a design flaw on GM's behalf. 312 inches by 3. I've gotten my car up to 135 with little trouble. I have a Dana 60 with 4. When should a Turbo 400 be considered over using the Turbo 350? Generally a Turbo 400 is preferred when the motor is producing more than 500hp and greater bottom end torque. It seems that the gears are slipping and causing the rpm's to climb up. Please call for a quote as these are custom units that are built to your needs. Versus later electronic models (such as the 4L60E), the 200-4R is both more affordable and simpler to work with, although concerns around the integrity of the TV cable and difficulties. By only switching to the 4L85E, you would be running about 2,900 rpm because of the. RPM you wish to check: Rear Axle Gear ratio (i. The TH400 is well known to be a heavier duty trans. happens its around 32-3300 rpms when it happens to me. this will drop your 60 MPH RPM down to about 1500 RPM. I am currently running a 3500 stall with a GV and I would really love to. When the T/C locked up (at around 30-35 mph) the entire truck would shudder as the RPM dropped to somewhere around 900. 31 rear end gears, the overdrive T700-R4 will drop engine speed from 2500 RPM to 1750 RPM at 60 MPH. 5:1 JE pistons, total seal rings, Manley blower rods, Comp cams roller blower cam and lifters, Edelbrock Performer RPM aluminum heads, MLS head gaskets, Comp cams Gold roller rockers plus Stud girdle, Dyers 671 blower with last tunnel ram lower intake manifold, Bill Dyer made. I think the DeVilles from 70-74 had the 2. I would agree best overall would be 3. In fact they are so similar many of the internal hard parts will DIRECTLY interchange between the two. I have talked with both PAE and TSP about them. times and get it all back with the. When you bring the cruising RPM's down low you can risk having the converter below its stall speed. I honestly think my car is faster with the 400 but i have no back to back data. Capture the MPH and the rpm of the pull if you don't have a log on it. com and eBay. Same deal if you're happily cruising the highway at 55 in 5th gear, and need more power to accelerate and pass someone, you can go to 4th gear and get that power. With the spooled 4:88 rear end and the 31×18. 10 93 RPM @ 70 MPH, 4th gear 4L60E - 3. Ron Francis Wiring makes a cameo appearance. Can those be driven comfortably down the highway? I know the rpms get high at 65 (2400 or so) and. My friend went with 4. Also has a ratchet shifter. Our Trip to RPM Speedway Go-Karting in Stamford is a Highway to Fun 7/15/18 - By Ally Noel It’s been a little while since a new family entertainment venue opened in lower Fairfield County. It seemed like a perfect time to show how good the rpm is now. The drivetrains were durable for …. Same deal if you're happily cruising the highway at 55 in 5th gear, and need more power to accelerate and pass someone, you can go to 4th gear and get that power. TH400 is a 3 speed auto, as you know. Black 1979 Chevrolet C10 Truck 350 Cid V8 Th400 Available Now! - Used Chevrolet C-10 for sale in Memphis, Indiana | Lunny's Auto. Multiply those RPM's by the overdrive ratio to see what RPM's would be with a new trans. Posted October 18, 2013. OK, on item #1. My 71 SS elcamino has a th-400 behind a 540HP big block. Our nitrous powered 4L60E 2010 Camaro. 73's, TH350, and Protrac N50's on the rear (I think about 26" tall) and the rpm at 60mph was 3000. 97 first gear instead of OEM 2. 3L LSx, stock everything except, Cam & Injectors, and TH400 with 3200 stall. Here at Alloy USA we have a made an easy to read chart to help you decide what is on the best gearing for your Jeep. Shift points in this truck are probably occuring at 2500 - 3000 rpm on the average with a TH400 and 4. 41:1, with 205-75R14 tires did 23 MPG with a best of 26 mpg!. It's a TH400. '92 Ford Mustang GT: 385" SBF, Dart SHP 8. I didn't drive over 55 @ about 3600 rpm. I think the stock 3. Its fine for the street and I have drove that car from one end of Canada to the other so it works on the highway too but of course I was younger then so possibly I wouldnt like the it as much now on long drives. A good way to calculate this is to multiply. 10 that comes with the Rubicon should be the smallest gear available on any model IMO. ADA Girdle Hardware Kit - Yamaha 701 / 760 YA701G6. and it is an easy install to replace a TH350. This series of towing torque converters is designed to allow your transmission to run up to 20° F cooler and will lower engine RPM at highway speeds, resulting in fuel mileage increases. Add to Wishlist. Street/Strip Kits. 9 trip odo, oil press, water temp, ammeter, fuel level, clock while as hot as anyone needs on the. PART# 20412 Be the first to write a review. Vacuum-operated modulator valves are installed in automobile automatic transmissions for the purpose of controlling shift patterns. 5" Part # 282251801. Scroll through the list of popular transmissions to find yours. These transmissions have higher mechanical first-gear ratios (turbo 400 2. When combo’d with their Hot+2 ET Race Xcelerator programmer, all that you’ll need to get that Duramax running is hook up a couple grounds, find 12V constant power, turn the key on, hit that start signal, and you’re good to go. A whopping 30% reduction. Keep in mind that the highway cruise rpm needs to remain at or above the converter stall speed to prevent building excessive heat in the fluid. I put on headers with a 3 inch pipes that lead to straight thru mufflers. com If you keep the 2. I just got my new dash installed and the speedometer wired and calibrated. 55 rear gear. 2020 Continental Tire the Americas, LLC P. I ran a 255/60/15 tire. 943 at full weight. By swapping out a 3. Here at Alloy USA we have a made an easy to read chart to help you decide what is on the best gearing for your Jeep. 56:1 gear worked out to 2,075 RPM (both in overdrive). The mission was simple. 00 Select options; DNJ-D-CF2 68RFE 2007 Up and 45RFE or 545RFE 1999 to 2011 Leak Proof Billet Aluminum Valve Body Plate $ 527. IMHO to make it work you will need a cam change, and lower stall TC and gears. Chief RPM is the crew chief of the RPM racing team and the boss of Winford Bradford Rutherford and his pitties. The A41 is an excellent way to replace your tired 904, 727, 518, Powerglide, TH350 (Turbo 350), TH400 (Turbo 400), 200R4 (200-4R) or 700R4 with modern technology that offers better acceleration and a 30% reduction in cruising rpms. Another little paw 427 cube for a client of ours. I'm running M22 and 4. Monster Savings of:$600. The truck is located in PA which is about 4 1/2 hours from my house. 3200 RPM is perfectly normal for a small 1. Our present truck with 3. As an Amazon Associate I earn from qualifying purchases. ATI offers Low Gear Sets for most popular 3-speed transmissions. 78 to 1 ratio allows you to go to a numerically higher rear gear to improve your 60ft. The 4L80E has an overdrive gear with a ratio of 0. what rear gears to run with. 08 rear gear at highway speed (75 mph and higher) it would be 4100-4300 rpm. 7 effective low-rpm ratio), and you get serious stump-pulling power!. (I'm now running 5500. I honestly think my car is faster with the 400 but i have no back to back data. The EGR valve, alternator, or fuel pump gets faulty. TCI SUPER STREETFIGHTER® th400 TRANSMISSION, 4" TAILSHAFT, 30 SPLINE, FOR BBC AND SBC, PART # 211005 File Photo. What does RPM stand for in Construction? Top RPM acronym definition related to defence: Revolutions Per Minute. They don't feel right on the highway, too high RPMs for my taste and MPG is horrible, I got less than 18MPG. Going auto with TH400 in 03 cobra This car is just going to be a around town car no highway, ill probably put 355s back in it for a little rpm help and wish i. Highway RPM. We’ll assume this Chevelle is running a TH400 with a mild performance non-lockup torque converter. May God's grace bless you in the Lord Jesus Christ. 2A Dual USB Car Adapter. The lower rpm (based on a numerically lower gear) doesn't necessarily mean better gas mileage. Create a MyZone account. com The Online Motorsports Superstore sells auto racing safety equipment, auto racing Hans Device, auto racing helmets, auto racing suits, auto racing gloves, auto racing parts, race car parts, Necksgen head and neck restraints, Racing Helmet, Racing Helmets, Snell Rated Helmets, Snell Approved Helmet, Snell Certified Helmet, Snell Helmet, Snell Rated Helmet, Snell Rated Helmets. I figured if I entered 26. 73 gears- i will need to do some highway driving to get to teh clostest 1/4 mile 2100 rpm at 55-60 is. Our present truck with 3. My engine puts out about 450 rwhp and operates in up to 7000 rpm. To properly convert to a TH400, in addition to all the above, you would want to put in a lower number rear axle ratio. We offer a plethora of Th400 Transmission for your vehicle needs. Our fuel-efficient Maximizer ™ High Torque Towing Converter is designed to reduce the slippage found in all non lock-up torque converters. This series of torque converters enables transmissions to run cooler and reduces engine RPM at highway speeds. Holden HQ-HZ Transmission COOLER Pipes NEW Suit Turbo 400-350 Genuine ,Also can Repair your 400/350 Transmission. Make your choice based on what you intend to do. When driving IAC is 40%. Introduced in 1964, the TH400 is an automatic shift, three-speed, longitudinally positioned transmission. Did anyone catch the "4. Features a 2. you are going to be staggered by the loss of top end and economy. It’s a favorite with Carr’s Chevy 502 and 572 customers. Like was said earlier, if you’re driving a ‘burb mileage problably isn’t your 1st priority. 41:1, with 205-75R14 tires did 23 MPG with a best of 26 mpg!. f bodies suck. I would agree best overall would be 3. How to Determine Gear Ratio. 5) can be used. This series of towing torque converters is designed to allow your transmission to run up to 20° F cooler and will lower engine RPM at highway speeds, resulting in fuel mileage increases. From these calculations, you can see just how much change in RPM an engine will experience with simple tire height and gear ratio changes. Car was sold new at Dye Pontiac now Billions Auto Group in Bozeman, MTI have owned Judge for 14 years, selling as I am looking for a 67 GTO 4 spd. 6L V6 engine. Over the past few days, I've had an issue with the torque converter - flexplate bolts begin slapping against the plate between the block and transmission. Holden HQ-HZ Transmission COOLER Pipes NEW Suit Turbo 400-350 Genuine ,Also can Repair your 400/350 Transmission. The Turbo 700-R4 is a good choice* due to the higher rear-end gear ratios on older cars. My problem is the trans shifts at 3800 RPMs. It doesn't seem to shift over second gear. 00 ratio and a TH 400 with a brake. 73 RPM seems high for 65 MPH. The W-32 option was 350 HP and outside air inducted with the TH400 trans. 42 no matter what, it does lose 1 mpg but who gives a shit its a truck. •The 700-R4's 3. Hello, I'm new to the forums. 27 automatic, 3. 1; 2; Next. I usally drive in 3rd at 50 mph, and 4th(overdrive) on the freeway at 70mph. I've recently switched to a 3:42 with a Turbo 400. I had my 383 in the 80 with a decent th350 with the. It was just 50 RPM! So I stomped the go pedal, the RPM shot up by another 350, for a total of 400. RPM Drop From Shift Calculator - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules!. Also, when this issue starts happening, even though I am driving at very low speeds from 25-35 mph, the RPM increases to around 2800. Muscle Car Image Gallery. It weighs a substantial 12 pounds, and in First gear, it must counter rotate at 85 percent of engine rpm. ) Tire diameter in inches (24. 75 overdrive. By swapping out a 3. The GEAR VENDORS in combination with the Powerglide is an affordable, reliable, and very efficient package. 57 second, 1. than a TH350 but this heavy duty factor was designed more for heavy vehicles that may encounter pulling heavy loads. 73 gears and we run 3200+ on the freeway to keep up with traffic with 4. I looked at going to a 342. This was our first LS1 to TJ swap a few years ago and what was so challenging then has become second nature and we documented. It's great because I can now drive the truck at 65 on the freeway and the engine is at about 2,000 RPM with the torque converter clutch locked. ) Transmission Gear ratio (i. Now available with the award winning ATI T400 SFI Certified SuperCase. 5" Part # 282251801. Bolt Circle Diameter: 11. Most of the buick guys I talked to seemed to like them. The smaller pinion size creates less tooth contact and greater gear tooth strain. of input torque. my Nova ran 3. I drove my truck from Louisiana back to North Carolina when I moved home. I have been looking at the same option as you. engine and code-PQ Turbo 400. The B&M 2,000-rpm stall for a 4L80E (left) looks similar to their 3,000 rpm Holeshot for a 700R4 (right), but there's a lot more than just the number of bolts connecting them to the flywheel that differ. That would make my final drive ratio 10. I'm considering going to college 5+ hours away in the mountains, so highway speed will be important to me. I have talked with both PAE and TSP about them. 050 and made 630hp at 6500 rpm and 580ft lb at 4700 rpm with carby. 10:1 gear worked out to 1,850 RPM while the 4. Regal to a stock VB. 73's- anyone running a th400 daily ? Discussion in 'Non-Turbo Tech simple and strong as hell- i was thinking- a th400 with a 3000stall and t-brake with 2. Also, the engine RPM reduction quiets down the drivetrain, has less heat buildup, and provides a comfortable long highway cruise. I usally drive in 3rd at 50 mph, and 4th(overdrive) on the freeway at 70mph. I have a 1970 GTO with a Pontiac 455 and TH400 with a 900 CFM HP EFI TBI system on it. Street/Handling Kits. They are bullit proof transmissions but if you do a lot of highway driving your rpm's will be up there, and your gas milage will suffer. @tobroketoretire The tires are 245/60R15-100S front and back. While it was fun around town. #N#The speed in MPH is miles per hour. The GEAR VENDORS in combination with the Powerglide is an affordable, reliable, and very efficient package. Most notably, the VVT-i system brought the peak torque down 400 rpm, making the car much more fun to drive around the street. 42 and Th400 has been from NJ to colo. The 2004R gear ratios are 2. Shift points in this truck are probably occuring at 2500 - 3000 rpm on the average with a TH400 and 4. 25 inch tire size on the superchips programmer it would be right on for the rpms that 4. About the only time I shift into 2nd is to hold it back while idleing down high mountain highway passes. Man wouldn't that be nice having a steeper 1-2 gear with my 3. WeP TH400 Plus billing printer to the range of retail billing printers from WeP solutions Limited. Versus later electronic models (such as the 4L60E), the 200-4R is both more affordable and simpler to work with, although concerns around the integrity of the TV cable and difficulties. Advance Adapter The GM 700R4 main shaft kit is used when replacing a TH400 in model years 1985-91. Ron Francis Wiring makes a cameo appearance. When they go bad the converter will not be able to lock when going down the highway. 73, so the engines are already at low rpm on the highway (2,500 rpm or so at 70mph). 93 rear end, and the 75 and 76 had a 2. com Car Chat > but the r4 has the overdrive ratio that allows you to drop some of that excessive RPM when cruising on the highway. All specifications, performance and fuel economy data of Buick Custom Sportwagon 400-4 V-8 TH-400 (257. TH400 is a poor pairing for a cummins. This was our first LS1 to TJ swap a few years ago and what was so challenging then has become second nature and we documented. Corvette marked its silver anniversary for 1978 with a new fastback roofline that greatly increased luggage space, though the fixed glass meant you still had to load up from inside. To calculate for a different RPM, use our Engine RPM calculator. You have the extra torque of a good, mild 383, so you shouldn't have to wind the rpms up too far. this will drop your 60 MPH RPM down to about 1500 RPM. 36 gear ratio would drive on the street. My warmed over 1625cc engine with big valve head and fast street cam may be close to 100 bhp. Im looking into replacing my getrag 6 speed for a sp400 kit. Allows you to adapt a GM Th350 3 speed automatic transmission to the Jeep Dana 300 transfer case. For those of you who didn't follow my build post, I put a GM 200R4 tranny in my Dart Sport. 1; 2; Next. I did a lot of freeway driving at 75-80 mph, running at 3500 RPM or so. 3000 rpm 3000 rpm 3000 rpm 2500 rpm 2250 rpm 2100 rpm 2100 rpm Oil Type Hydraulic transmission fluid, C-3 Hydraulic transmission fluid, C-4 Hydraulic transmission fluid, C-4 C4 15W-40 or C4 30W Hydraulic transmission fluid, C-4 Hydraulic transmission fluid, C-4 Converter Oil Capacity 2. When the T/C locked up (at around 30-35 mph) the entire truck would shudder as the RPM dropped to somewhere around 900. Now, lock up the converter, and that drops to 2,600 rpm. what transmission is the best to use for hotrodin i have been told the 700R is good but has a lot of problems with it but i want overdrive so i can cruise on the highway without having a lot of high RPM s or would i be better runing the 350 turbo and not have any problems i have two transmissions i have a 700 R and i have a 350 lockup so guys let me know what would be the best transmission to. Granted I have more power than most but I have ran 5. 11 rear gear axle ratio, adding extra wear to the engine and to your mental state. I have a1969 chevelle I bought that was under constuction. Gear Ratio and Tire Size Calculator - 4x4 and Jeep Ring & Pinion When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. I drove a lot of Hydros, and they ALL eventually caused me grief. Chevy Performance’s Rusty Sampsel explains the lineage of GM’s overdrive automatics: “The 4L60/65/70 are basically a TH350 with the overdrive added, and the 4L80/85 are a TH400 with the overdrive added,” he explains. APR has developed an excellent entry level turbocharger upgrade for the 2. The mission was simple. For highway cruising and best fuel economy stay towards the yellow (2600 rpm), around town daily driving is color coded green (2800 rpm), and for better towing power or just more 4-low power use the ratios near the red (3100 rpm). At 65 on the interstate in between 3k and 3500. them for a highway gear, either 3. 5:1 in a towing motor. You usually start with 65 MPH, since that is the natural highway speed, multiply by 3. 10 rear axle results in a final drive ratio of 10. But that's got a ton of low rpm torque. 0l with the auto tranny , that would be the 3 speed '32rh' model I really didn't buy this thing to do alot of highway driving and it seem in third gear on the highway its running kind of high in the rpms roughly 3,000 rpm's at 65 mph. engine and code-PQ Turbo 400. After moving here I aquired another vehicle to drive daily and swapped out the 3. completely rebuilt using all new high performance clutch frictions and steels, new bands, new bronze bushes, new torrington bearings, new seals and sealing rings, new bronze thrust washers, new roller clutch sprags, high flow filter, gaskets etc , and fitted with a high performance shift kit for quicker,firmer shifts. Borg Warner Close 4sp '74 up. ) Tire diameter in inches (24. In addition to supplying increased torque for towing and motor homes, these gears are an excellent alternative to steep rear end gears for street driven performance vehicles and low RPM, high torque race engines. Now available with the award winning ATI T400 SFI Certified SuperCase. 91 and then again with 336, dividing all by 30 gives you the before RPM of 2846. Very dark red or black transmission fluid is an indication that the transmission is burning the fluid for getting too hot from either overloading or slipping gears. The actual formula is dependent on engine RPM at 60MPH(or average driving speed). Cruising however is more suited to a lower number ratio as you have no need to accelerate quickly and you will also improve your f. 943 at full weight. RPM = (MPH x Gear Ratio x 336) Tire Diameter RPM = (70 x 4. On main roads or highways, I'd be at 3000 rpm around 60 mph. WeP TH400 Plus billing printer to the range of retail billing printers from WeP solutions Limited. 11 with a posi unit that I picked up for. f bodies suck. In other words, it is the perfect final drive ratio for attaining top speed. it was initially offered to South-Africa but the South-African army decline the. The B&M 2,000-rpm stall for a 4L80E (left) looks similar to their 3,000 rpm Holeshot for a 700R4 (right), but there's a lot more than just the number of bolts connecting them to the flywheel that differ. Capture the MPH and the rpm of the pull if you don't have a log on it. Response Number 1: Name: fred ont canada Date: February 23, 1998 at 10:02:21 Subject: Torque Converter -- Bad Vibrations? Reply: Bob what you are discibing is a mechanical vibration has nothing to do with pressure. The TH-400 was a reconnaissance vehicles developed by Thyssen-Henschel in 1984. Top off the fluid. Alright heres my situation. 623" lift/114° LSA camshaft, 11. When new, the transmission was likely programmed to upshift just past 5,000 rpm at full throttle. Common ratios in Jeeps include: 3. In 1969 a heavy-duty version of the Turbo 400 became available for the L71 (435 hp), L88 (430 hp), and L89 (L71 with aluminum. But as they're almost brand new, we'll get the correct size next year. 08 gears and th400 between speeds of 60-70 on the way back from myrtle beach. Our Trip to RPM Speedway Go-Karting in Stamford is a Highway to Fun 7/15/18 - By Ally Noel It’s been a little while since a new family entertainment venue opened in lower Fairfield County. 55 rear and I could tear up the streets but my top speed was crap. com Car Chat > but the r4 has the overdrive ratio that allows you to drop some of that excessive RPM when cruising on the highway. Even the 3. Reading Time: 20 minutes The modern automatic transmission is by far, the most complicated mechanical component in today’s automobile. Find TCI Breakaway TH350/TH400 Torque Converter 240900 at LSXceleration with Free shipping on qualifying orders! Designed for efficiency at highway cruising speeds and to launch hard at wide open throttle, (4100-4200 RPM) Bolt-Together Billet Converter w/ Patent-Pending Triple-Disc Lock-Up Clutch Building off the success of their bolt. As an Amazon Associate I earn from qualifying purchases. The higher the engine RPM, the greater the potential speed at the cost of fuel, heat, friction and engine longevity. I was so stunned to discover my slippage wasn't 200 RPM. Designed for stock 2. 0l with the auto tranny , that would be the 3 speed '32rh' model I really didn't buy this thing to do alot of highway driving and it seem in third gear on the highway its running kind of high in the rpms roughly 3,000 rpm's at 65 mph. about two weeks ago the speedometer started acting funny (the gear selector indicator light would turn off and the spedo and tach would go up approx 20 deg, after a few seconds the indicator light would come back on then the spedo and tach would dip way down then come back up to correct), now the shift indicator light. This TCI StreetFighter transmission is. The manual for a TH400 seems to be better written - the TH400-S manual appears to have been copied from the TH400, but some excerpts were simplified and edited by a non-English speaker. Advanced Adapters GM 4WD Th350 3 Speed Automatic Transmission to Jeep Dana 300 Adapter Kit. From these calculations, you can see just how much change in RPM an engine will experience with simple tire height and gear ratio changes. As previously noted, transmission choices were minimal. 31 for street/highway use and then I would run a 28" tall tire like a 275/60-15. 00 Select options; DNJ-D-CF2 68RFE 2007 Up and 45RFE or 545RFE 1999 to 2011 Leak Proof Billet Aluminum Valve Body Plate $ 527. The RPM drop as explained is there. Ampeak 2000W Power Inverter 3 AC Outlets DC 12V to 110V AC Car Converter 2. Fuel economy was up five points from the 4. Hays Twister Full Race Torque Converter 1965-91 GM TH400, 4200-4500 RPM stall 9. 78 to 1 ratio allows you to go to a numerically higher rear gear to improve your 60ft. TH400, so it'll bolt right up to the TH400 transmission crossmember. 11:1) = 3066rpm at driveshaft, which is engine RPM in top (1:1 gear) x gear ratio (0. You need the RPM for the cam but running along a 2800 rpm on the highway gets old fast. Unless you want a slow 'yard tug' for shunting trailers they're great transmissions for that purpose. TH400 is a poor pairing for a cummins. It may be helpful to think of your car’s inner workings as similar to that of the human body. 73 gears in my 79 400 4sp TA. But now its going in my 80 that has a 500hp 383 th400 3000 converter. This is typical with stroker motors and big blocks. Add a SuperCase and Chevy Bell - $1,395. 070 overdrive , that can be compensated for by taking a little gear out of the rear end EXAMPLE if you have 3. The Maximizer Towing Torque Converter has stall ranges from 1000 to 1200 rpm, and is an excellent choice for all heavy load applications, including motor. com If you keep the 2. com and eBay. It seems that the gears are slipping and causing the rpm’s to climb up. B&M Holeshot 2400 Torque Converter, 1965-91 GM TH400, 1968-81 TH350. The choice of a direct-drive (1to1) or overdrive (usually 30%) transmission will determine driveshaft RPM at cruising speed. Gear Ratio and Tire Size Calculator - 4x4 and Jeep Ring & Pinion When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. AutoZone Rewards ID * AutoZone Rewards member ID can be found on the back of your AutoZone Rewards card. You have the extra torque of a good, mild 383, so you shouldn't have to wind the rpms up too far. It is widely regarded to be a supremely durable and legendary transmission. I wrote this calculator in the early 2000s to help me figure out the ratio on my '77 K10 Silverado (35" tires and 8" lift, auto trans and NP205 transfer case). Top off the fluid. 48:1, and Third gear is 1:1. 383 crank $299-TH350/TH400 Fr $599-3500 rpm stall $400, Please Contact. Well thats a vague question really as most people have different ideas on what is good mileage. This is why it makes. My warmed over 1625cc engine with big valve head and fast street cam may be close to 100 bhp. Engine RPM at cruising speed should be maintained between 1800 to 2100 RPM. 75:1 4th gear. This GV works great goes in overdrive at 47 mph in auto mode or you can go to manual mode and overdrive all the gears making it a six speed. This number is probably low because what we're not taking into consideration in this formula is torque converter slippage. #2: THM400 – TH475 Model (a. Front Brake Kits. 1; 2; Next. This is why it makes. Overdrive and lockup (or manual trans) are significant when you have buckets of torque and narrow rpm range. transmission specialties - gm 10in extra hs xhd 410 0-4500 rpms TORQUE CONVERTER - BIG SHOT XHSXHD - 10 IN DIAMETER - 4100-4500 RPM STALL - TH350 / TH400 - EACH More Details Part #TSI-10000XHSXHD. Step Van, 105 HP @ 2,500 RPM, COMPLETE REMANUFACTURED TRUCK ENGINE [LMRO Turbo, 3. The earlier 3 speed Land Cruiser trans can be mated to the Ranger Torque Splitter by using a special retainer: PN 716222 with Overdrive PN 760001M-27. Ideal world: aggressive gear ratio and 4, 5 or 6 gears available to keep rpm manageable. com has a mucie M22Z with a first gear of 2. " Super Street Raptor Torque Converter 700R4 2004R" Fits 700R4, 200-4R and non-LS1 4L60E transmissions (1982-1997). 41:1, with 205-75R14 tires did 23 MPG with a best of 26 mpg!. I am getting ready to put a new GM 10 bolt rear end in my MCSS and I have come to a crossroad in determining whether or not to put in 3. This rpm is often MUCH higher than you would thinklike 5k or so. I put 175,000 miles on that engine and could have gotten another 100k if the body. Ecklers Chevelle offers this awesome, Crossmember, Th400/200R4 Transmission. The Turbo 400 was introduced in 1964 in Buick and. It also seems to happen regularly if climbing even the slightest incline/hill. Respected automotive technical author Cliff Ruggles takes readers through the complex rebuild procedure of GMs TH-400 transmission in this great new book. Over the past few days, I've had an issue with the torque converter - flexplate bolts begin slapping against the plate between the block and transmission. I have a th400 with a 3. It's actually quieter at highway speed than equivalent gas engines, because it's turning slower, just 2100 rpm at 100 km/h. This series of torque converters enables transmissions to run cooler and reduces engine RPM at highway speeds. 11 is pretty much the standard gear ratio for 33" tires. Performance Automatic 574615 TH400 Torque Converter, 2600-3000 Stall. Turbo 400, bulletproof Size Does Matter Torque converter size can also be confusing. Hello, I'm new to the forums. TH350 side view with short tail housing. When higher amounts of engine vacuum act on the modulator, the transmission begins to. com If you keep the 2. The battery has died. Most transmission problems are a result of overheating. My RPM's went up about 1000 from what they were with the 2:73 I had in it before at highway speeds. These calculators are designed to give the approximate engine RPM (revolutions per minute) based on the ring gear and pinion gear ratio, the height of the tires (diameter from ground to top of the tire while mounted on the vehicle) and the transmission final gear ratio. Car was sold new at Dye Pontiac now Billions Auto Group in Bozeman, MTI have owned Judge for 14 years, selling as I am looking for a 67 GTO 4 spd. 41 set of gears. 08 rear in my big block Suburban works great. , including acceleration times 0-60 mph, 0-100 mph, 0-100 km/h, 0-200 km/h, quarter mile time, top speed, mileage and fuel economy, power-to-weight ratio, dimensions, drag coefficient, etc. 10 gears,,,,and I can cruise at 55 mph on the highway at only 2,700-2,800 rpms, with a 28 inch tall tire,,,it's not that bad,,,,,not sure where Mr. -comp cams pushrods-isky roller tappets-steel roller (delta) cam-comp cams steel rocker arms-msd ignition-custom headers. Overdrive and lockup (or manual trans) are significant when you have buckets of torque and narrow rpm range. 56 and the best thing I can say about it is that it makes a good low rpm cruiser, even with 245/60s. I'm getting about 15 MPG for average driving. Q: What does kickdown mean in an automatic transmission? A: Kickdown is a downshift in an automatic transmission triggered when the driver pushes the car's accelerator to the floor. Engine RPM, or the speed at which the engine turns, can be calculated at any speed given the vehicle's tire size, axle ratio, and final transmission gear ratio. com The Online Motorsports Superstore sells auto racing safety equipment, auto racing Hans Device, auto racing helmets, auto racing suits, auto racing gloves, auto racing parts, race car parts, Necksgen head and neck restraints, Racing Helmet, Racing Helmets, Snell Rated Helmets, Snell Approved Helmet, Snell Certified Helmet, Snell Helmet, Snell Rated Helmet, Snell Rated Helmets. Chevy Performance’s Rusty Sampsel explains the lineage of GM’s overdrive automatics: “The 4L60/65/70 are basically a TH350 with the overdrive added, and the 4L80/85 are a TH400 with the overdrive added,” he explains. The RPM drop as explained is there. The drivetrains were durable for …. Gear ratio and tire diameter charts are ideal for making your car. 5:1 JE pistons, total seal rings, Manley blower rods, Comp cams roller blower cam and lifters, Edelbrock Performer RPM aluminum heads, MLS head gaskets, Comp cams Gold roller rockers plus Stud girdle, Dyers 671 blower with last tunnel ram lower intake manifold, Bill Dyer made. 56 behind a 305 and TH350C. If you use the SAVE feature,you can then use the GradeID in you For Sale listings on Solester. The smaller pinion size creates less tooth contact and greater gear tooth strain. 78 to 1 ratio allows you to go to a numerically higher rear gear to improve your 60ft. With the 3. 70 in an automatic have any noticeable affect on performance and would it stress the automatic in the long run?. Mostly when I'm driving down the highway (50-75 MPH, 2450 RPM & up), or if I'm cruising on the street (30-45, 1650 RPM & up) and I let off the throttle, the IAC stays at 40% for a couple seconds then drops to 0%, and the AFR goes anywhere. 5:1 JE pistons, total seal rings, Manley blower rods, Comp cams roller blower cam and lifters, Edelbrock Performer RPM aluminum heads, MLS head gaskets, Comp cams Gold roller rockers plus Stud girdle, Dyers 671 blower with last tunnel ram lower intake manifold, Bill Dyer made. Listing of available engines is incorrect. The fuel pressure is low. The TH400 is an automatic shift, three-speed, longitudinally positioned transmission. Shift points in this truck are probably occuring at 2500 - 3000 rpm on the average with a TH400 and 4. The engine is governed at its red line of 3600 with the DB2 injection pump but DDA states that 3000 was the max sustained RPM under load. It ended up being 55 degrees of advance. You will be running in higher RPMs and may initially be afraid of it, but it doesnt hurt the car. Just type in your info, press calculate, and you'll get the right gear ratio without the guesswork. 5 Learn More. What does RPM stand for in Construction? Top RPM acronym definition related to defence: Revolutions Per Minute. Lifetime Member. 70 in the LT-1, its a MONSTER off the line, but runs about 3000rpm at about 60MPH. DEBOSS Garage uses his ’67 Pontiac GTO project as an excuse to go over how to build a high performance Turbo Hydramatic 350 (TH350) or Turbo Hydramatic 400 (TH400) transmission… Also of Interest: Popular Automatic Transmission Identification Chart. These calculators are designed to give the approximate engine RPM (revolutions per minute) based on the ring gear and pinion gear ratio, the height of the tires (diameter from ground to top of the tire while mounted on the vehicle) and the transmission final gear ratio. I think the cons win ! Don't see any pro's to running a overdrive on a TH 400 I would talk with the K-69 team. I have 373s in the rear of my s10 with a th350. Street/Strip and Drag Racing TH400's. 73's- anyone running a th400 daily ? with 2. When it comes to swaps the TH350 to TH700R4 conversion is one of the very best as it'll give these C3's better out-of-the-hole acceleration as well as a much better cruising rpm. Instant starting, click the key and it was running. When new, the transmission was likely programmed to upshift just past 5,000 rpm at full throttle. 55 rear and I could tear up the streets but my top speed was crap. this will drop your 60 MPH RPM down to about 1500 RPM. Find many great new & used options and get the best deals for TCI BreakAway Torque Converter 1965-91 GM TH350 TH400 2400-2600 RPM Stall 11" at the best online prices at eBay! Free shipping for many products!. The base V8 in the 442 was 400 cu in, 4bbl carb. Re: How hard to get 400 hp out of a 400 pontiac engine. Determine your engine’s RPM based on the transmission gear ratio, tire height, MPH and the ratio of your ring gear and pinion gear. 0l with the auto tranny , that would be the 3 speed '32rh' model I really didn't buy this thing to do alot of highway driving and it seem in third gear on the highway its running kind of high in the rpms roughly 3,000 rpm's at 65 mph. Street/Handling Kits. 35] would provide decent off-the-line performance, even with a low horsepower engine. If you hear a loud clunk, or feel a chassis shudder, this could indicate that the torque converter mounts have disconnected or broken. 070 overdrive , that can be compensated for by taking a little gear out of the rear end EXAMPLE if you have 3. #N#The speed in MPH is miles per hour. On the other hand, I wouldn't consider anything steeper than a 3. Overall the units appear to be extremely similar and closely related. OK, on item #1. Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. 10 Most Common Transmission Problems Determining what problem(s) your car has may seem like an impossible task, especially to the untrained eyes and ears of the average driver. Only the largest of the GM cars weighing around 5000 lbs had these trans. We ended up putting a switch in series with the lock-up relay and only used it out on the highway. Just type in your info, press calculate, and you’ll get the right gear ratio without the guesswork. An air filter gets dirty. Street/Strip Kits. 56 and the best thing I can say about it is that it makes a good low rpm cruiser, even with 245/60s. The Converter Control Knob Has 6 Settings to Adjust the Converter Pressure. TURBO 400 TRANS SHIELD. 3200 RPM is perfectly normal for a small 1. It's a TH400. JW Performance TH400 Transmission JW Performance TH400/VG Hybrid Torque Converter Parts needed to complete the conversion but currently are not supplied by BDE are: flexplate, driveshaft, trans cooler, trans mount, torque converter pilot bushing, and shifter; PN and supplier recommendations are available upon request. 4L80E vs TH400 Gearing. IMHO to make it work you will need a cam change, and lower stall TC and gears. Fuel economy was up five points from the 4. com and eBay. when towing my fifth wheel in overdrive the torque converter will unlock as I approach a grade. I honestly think my car is faster with the 400 but i have no back to back data. As automatics go, it is considered the heavy-duty version of the Turbo Hydra-Matic 350; they are. Article may contain affiliate links. Pull the flywheel cover and run the engine check for run out in the converter. Check it out below! Click here to check out The Muscle Car Place's Podcast #138: Wiring the Chevelle with Jeff Allison and Ron Francis Wiring! #N#Click the logo to. 00 third, and. Borg Warner T-10 Close 4sp early. Our fuel-efficient Maximizer ™ High Torque Towing Converter is designed to reduce the slippage found in all non lock-up torque converters. the transmission is bad. Over the past few days, I've had an issue with the torque converter - flexplate bolts begin slapping against the plate between the block and transmission. If your transmission is running hot, be aware of possible causes. If the overdrive is not a deal breaker, this makes sense. The car (kind of a secret at the moment) currently has 4. This Tech Tip is From the Full Book, …. 2 and 3 speed versions available with many gear set ratios to choose from. In addition, Spicer driveshaft end yokes are: Forged from hardened steel Heat treated to endure tough conditions Engineered a precise fit Minimize noise, vibration, and harshness and keep your driveline running smoothly. Its fine for the street and I have drove that car from one end of Canada to the other so it works on the highway too but of course I was younger then so possibly I wouldnt like the it as much now on long drives. These calculators are designed to give the approximate engine RPM (revolutions per minute) based on the ring gear and pinion gear ratio, the height of the tires (diameter from ground to top of the tire while mounted on the vehicle) and the transmission final gear ratio. THE TRUCK: 2001 Dodge Ram 3500 4X4 24v Diesel Cummins, previously an 8. We'll assume this Chevelle is running a TH400 with a mild performance non-lockup torque converter. The ratio is. 10's because he didn't want to hurt his car's "streetability" but he had a 4000 stall. That is a good deal and ive been reading up on the th400 alot lately. Most transmission problems are a result of overheating. 1931 Ford Tudor Selling my 1931 ford tudor it’s on a so cal Chassis with a Currie 9 inch turbo 400 and 1968 327 with tri power motor and trans both have low miles the hole chassis was completely pulled apart and powder coated all brakes redone steering box rebuilt body was. Muncie Close 4sp pre-'74. Borg Warner Close 4sp '74 up. To properly convert to a TH400, in addition to all the above, you would want to put in a lower number rear axle ratio. View as Grid List. These are all important elements to consider whether you’re cruising down the highway or racing down the strip. Really even that high is a little hard on it but if you are on the highway I usually go 60-65 cruising with the 3L80 trans. ATI's Turbo 400 Drag Racing Transmission. , to use the engine for their autos as well. Only the largest of the GM cars weighing around 5000 lbs had these trans. Multiply those RPM's by the overdrive ratio to see what RPM's would be with a new trans. Now switch to the 700r4 and your closer to 3000 rpms. $200—the equivalent of about $1700 today—there was the Highway Hi-Fi, a factory-installed record player mounted under the car's. rpm = 70 x 3. This series of torque converters enables transmissions to run cooler and reduces engine RPM at highway speeds. The higher the RGP ratio, the lower the top end speed but faster acceleration and more pulling power. April 28th, 2015, 04:31 AM And the highway cruise will be great, too. This car was run on regular fuel only. I have never been a big fan of the C4. 10 2260 Keeping 3. Quick Ship available! handle up to 550hp/500tq. There are aftermarket gears available, a 2. Depends on what you want to do with the truck, and what size of tires you are running. ÿ SENSORS 6 MONTH WARR. The colors represent ideal RPM’s at highway speeds (65). 48 and third is 1. B&M Tork Master 2400 2300-2500 RPM Hi Stall Torque Converter Suitable for VT 304 5lt V8 Holden Commodore 4 Speed Auto 4L60E B&M offers a wide range of performance torque converters to fit almost everybody’s needs. The 4L60E (left) and 4L80E (right) differ considerably in size. The 3 speed turbo 400 trans is just fine, I'm never wanting for more power. Adding to the last example. 06 First gear ratio is a stalls at 2,800 rpm, yet still delivers efficient highway cruising at 1,800 rpm. old gearbox dumped in a rest area on the side of the road image by Undy from Fotolia. *** Calculated using a 1:1 final drive ratio (No Overdrive). 73 work OK up to about 50MPH, mixed city driving but get the engine noisy on the highway. Now try a set of 35's on for size. How to Diagnose Transmission Noises by Chris Stevenson. Built to fit your street rod and priced to fit your budget. The GEAR VENDORS. 10 Most Common Transmission Problems Determining what problem(s) your car has may seem like an impossible task, especially to the untrained eyes and ears of the average driver. Qty: Add to Wishlist. When new, the transmission was likely programmed to upshift just past 5,000 rpm at full throttle. For a street car the sooner it starts producing good torque (the low end of the rpm range) the better. Now, lock up the converter, and that drops to 2,600 rpm. 563 Hwy 20 W, Fenwick, ON L0S 1C0, Canada. The B&M 2,000-rpm stall for a 4L80E (left) looks similar to their 3,000 rpm Holeshot for a 700R4 (right), but there's a lot more than just the number of bolts connecting them to the flywheel that differ. Gear ratio and tire diameter charts are ideal for making your car. Add a SuperCase and Chevy Bell - $1,395. 97 Suburban 1500 4WD -Jerks at highway speed like it is trying to shift. 48, scond gear is 1. There are aftermarket gears available, a 2. just add more gas and try to start it for a bit to get the gas going again When you require full. 0L Turbo Camaros with the LTG engine. 3200 RPM is perfectly normal for a small 1.
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