th400 highway rpm. and 4 out of the 5 tell you " go see John at TDS in Newmarket he's the guy you want building your TH400". 7L V8 Designed and Manufactured in the USA Bare Aluminum 551908. It provides approximately 2400 to 2600 RPM flash stall, without negatively affecting part throttle driving. 0 rear, it only makes 2000 rpm at 50 mph, so it must be slipping. So from everything we have seen, the tune needs to be modified to think it is a manual and delete the codes associated with the auto trans. We currently carry 3 Performance Torque Converter products to choose from for your 1979 Cadillac DeVille, and our inventory prices range from as little as $200. Built for performance: the McLeod by Raybestos Powertrain THM400 performance transmission rebuild kit utilizes Stage-1 red friction clutch plate material to deliver the competitive power and performance you need on the street, on the track and off-road. We are always ready to help or just listen to your crazy off-roading adventures!. When the TCC solenoid receives a signal from the engine control module (ECM), it opens a passage in the valve body and hydraulic fluid applies the TCC. It's know to affect the Subaru Forester quite often. Hardtop 1965 401ci Nailhead V8 Turbo 400 automatic transmission Jaguar IRS rear axle Camaro sub-frame Power steering 4 $24,990 29,731 Miles. Many companies offer rebuilts, which sell in the $600 to $900 range, but cores are usually required. The tired old story of how cheap gas was in the good old days. For most 425, 572, 368, and 500 engines, the torque for the. 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 …. It was introduced as a sporty option on the ’61 model and it was a true performance variant. Should have kept quiet about the 66, don't have a manual anymore on this AT, in my 82, the step down solenoid is energized from the ignition switch to accelerator switch, to the solenoid, and. Webmaster's Note: Mike plans to swap out to a 8. We currently carry 4 Performance Torque Converter products to choose from for your 1968 Chevrolet Corvette, and our inventory prices range from as little as $273. Keep an eye open as this car will make a come back later this summer. Trans fluid is very good at resisting rust and corrosion, but its better idea to just put pan back on, at least bolts …. Our parts team specializes in hard to find parts and high volume orders. The TH400 has an overall case length of 616 mm. Into second gear at 40KMS (+/-25MPH) the truck RPM jumps without shifting. 73s, caltracs, NA [email protected] 1. Posted by Dazza G on Jun 25, 2012. Apply the parking brake and ensure it is properly engaged. 91 and then again with 336, dividing all by 30 gives you the before RPM of 2846. Common Issues When Transmission Makes Clunking Noise. When your transmission slams into gear it can be a sign of abnormal pressures, worn components or even a low fluid level. Mount point on th700r4 is closer to engine so you will need to move cross member toward front of car. 75mph was a tick under 3000 RPMs. Automatic Overdrive Transmission Swap. It came with a 700R4 that had died and the previous owner swapped in this TH400. One of the first signs of transmission problems is when your transmission shifts hard. So, you might notice rhythmic clunking or grinding noises, while the. Are th350 and th400 interchangeable? They are interchangeable, if you …. Installation of a 4L60-4L70, 4L80/4L85, TH400, or 2004R automatic transmission can also be accomplished using this crossmember and the Hooker 12650HKR , 12655HKR, or 12656HKR adapter kits referenced later in this document. Smaller gears in the foreground are for a Ford C-6. Transmission and Driveline - 455 & TH400 - High RPMs at cruising speeds - It doesn't seem right that my tach shows 3500 RPM at 50 MPH. 455 (SD) V8 310 bhp @ 4000 rpm, 390 lb-ft @ 3600 rpm. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. This conversion will drop your cruising rpms by 30% making for a nice highway cruise and they start at $4,199. Upkeep and maintenance of these machines are tricky since the glitch with a tiny component can mess up with the gearbox. TH400 is a 3 speed auto, as you know. Im running a 3600 pi, with an auto rear end and the car raps up pretty high at highway speeds. 41:1 rear gears the torque occurs at about 92 mph and the horsepower peak occurs at about 131 mph - With 3. Nissan Largo Autech Highway Star, GMC Typhoon, BMW 328i. Site access based on user permissions. My TH400 can't decide wether to stay in 3rd at highway speeds. Gear splits in a street car or highway car are just not needed. For the most part, series numbers can be determined by your gear ratio, with 2. Which at 70, your cruise rpm would be 2400 rpms with the same tires and axle ratio you have now. JEGS Torque Converter for GM TH350/TH400 [2300-2700 RPM Stall Speed] Part Number: 555-60400. I had a lower stall TC in it, and you had to stand on the brake or it would idle at 20 mph! So around town it was no fun. The c has a lockup converter better for highway driving and if you don't mind wiring/dealing with lockup switch. I have a TH400 with a 3000 torque converter with an oil cooler and 4. Denny's Driveshafts custom built driveline to your exact specifications. My highway cruise RPMs are around 2700. The leader in late model GM Performance. I feel like a TH350 is fine behind most smallblocks and a TH400 should be used behind bigblocks. This item: AutoMaxx Universal Torque Converter Dust Cover TH350 TH400 $32. It also has shorter 1st and 2nd gears than a 400. [5] 30 city/38 highway/33 combined mpg rating for LX, EX and EX-L trims. 52 than the TH400) and a better overdrive (. Lt1 gas mileage average - 15 to 20 mpg. At running temp IAC reads 5% in neutral. decreases, the stall speed (RPM) goes up. AFR's 227cc "Race Ready™" and “Competition” heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Truck mechanically redone from bumper to bumper at …. 22 city/32 highway/26 combined mpg rating for Sport 2. The transmission is easy to install but you need to modify the crossmember. We need to buy a 42 tooth (green) 1362049 gear. All TH350 transmissions include a new pan. I'm torn between the 80e and the TH400. Th400 is shorter so you will need a longer ds. At my one and only trip to LA County Raceway, the car (on 10" slicks and with open exhaust) ran a best of 13. 10 At highway speeds I'd likely be less than 2,500 rpm possibly for . Hughes HTGM35 GM TH350 TH400 Street/Strip 3500 RPM Stall Converter. Most all vehicle manufacturers have their “Problem children”. I aparrently don't have a shift kit from B&M. , collapsed this week and fell into the Pacific Ocean after heavy rains caused a …. Scrape off the old gasket with a gasket scraper, making sure the pan is clean. TCI, Torque Converter, Chevy, TH400 with Cummins Diesel, 13" Converter, Maximizer Towing, Non Lock-Up. The default values yield a highway cruise speed of about 65 MPH. 70:1 overdrive along with complete electronic control to create the 4L80E. You usually start with 65 MPH, since that is the natural highway speed, multiply by 3. Both the engine and transmission in this Monte Carlo perform very well. Today the 4L80E transmission is widely used in the performance and drag racing markets. Powerglide Racing Transmissions. You put the Gear Vendors behind a powerglide, TH-350, or TH400 and you have . TCI SUPER STREETFIGHTER SBC BBC th350 TRANSMISSION, 1969-1979, 6" TAILSHAFT, PART # 311005 File Photo. Transmission Shifting Hard from 1 st to 2 nd: …. I am going to install a 4L85E, basically a TH400 w/an OD, electronically controlled trans. We recommend upgrading to a “Street Bandit” series torque converter if you have upgraded intake, headers, exhaust, cam, or gearing. Two transmissions are used in the 6. The GV unit is way more suited for a truck. In addition to the resulting fuel mileage . I would think you need a valve body from a diesel TH400 so your shift points are correct. Use zero for Converter Slip if manual Transmission. Found nylon clip on transmission that secures throttle wire to transmission pressure valve leaver not securing cable. GM Turbo 400, TH400 Transmission Slip Yoke and New Matching Spicer 5-178X Universal Joint. TH400 Transmission Specs, ID, and Common Problems. Terminator X very lean off throttle. Should that whine be there?:bowtie:. This is why I suggest an OverDrive unit. This means more slippage in the converter which translates to excess heat in the trans as well as lost fuel effeciency. About 3200 Converter Th350 Stall. That's why I mentioned the Richmond SS 5spd, it has a 2. 08:1 in each car, the overall ratio drops to 2. I have a Pro Street Camaro with a big-block Chevy, TH400, So right away, a 31-inch tall tire has a significant effect on highway rpm. No matter the situation, Advance Auto Parts has the Performance Torque Converter product you desperately need. THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. However every now and then it drops down to about 500 RPM and then quickly back up to about 1200 then goes slowly down to 1000 and stays there for a bit until I go again or it drops again. Your ratio is ideal already for gas mileage. First consideration was to install a 700r4 with overdrive but didn't want to loose the beefy TH 400. Turbo 400 Transmission (TH400): Specs and Parts - HCDMAG There is a 34-tooth upgrade (right) for the smooth drum, and it is highly recommended for any TH400 transmission to be used in a high-performance application. Changing to a TH350 from a Powerglide will only make the car faster off the line, and will make absolutely no difference in your highway cruising RPM. On a Go-Power dyno the engine pegged the 1,000 hp needle. 73 will give you better acceleration but you may find the higher rpm at highway speeds annoying, depending on. GM’s 4l60e transmission seems to get a bad wrap most of the time from performance enthusiasts. 23 rear end gear ratio in my '78 standard El Camino with 350v8, 4bbl. My elcy, I am at 3300 Rpm At around 65 mph on the highway with 3. TH400 is a poor pairing for a cummins. It seems like your transmission is shutting down completely but that’s not actually the case. This same engine in a 6000 lb truck will struggle to get 10 mpg. 78:1) = 2391rpm You're not going to fit a 28" tyre under a Torana without surgery either. All of a sudden the car speeds up, the RPM's come down to 1500 - 2000, (nothin … read more. The TH400 automatic transmission is designed for Corvette big-blocks with engines rated up to 400 hp. Turbo 400 Heavy Duty Billet Steel Intermediate Shaft Product #223700 * This TH400 Intermediate shaft is a "bolt-in" product made from 300 Maraging St and has been designed for High Horsepower and Off-Road use. The bolt holes are not the same on the crank to put the old flexiplate on. 0 The GearCalc program will help to to work out what rpm/speed you will be doing for a given tyre, diff and gearbox. I’ve heard peeps in the past mention using roller bearing tailshaft housing with pressure feed. It has a 355 CI Blown engine with a Crane Roller Cam, 488 spooled rear end, four link suspension, B&M TH 400 Automatic. 35-60r-15 tires, and the launch is incredible with the TH400, yet the rpm at 75 mph is around 3200. I have a serpentine conversion kit, Oversized electric fan and oversized 4 ROW radiator and my temps went up too. 56 gears I will be turning 2550 rpms, with 4. Reason im asking is i dont want to be going 65 or 70 down the highway and pushing 3000 - 4000 rpm cause the TH400 isnt beffy enough to handle the cummins. hwy speeds are at 2500-3000 rpm. And the "humming (at 55mph) as if the RPMs were 3000, when in fact they were at 2000 as correctly displayed on the RPM meter" issue was a results of the right front wheel. 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 It may be helpful to think of your car’s inner workings as similar to that of the human body Video of me comparing what you would see for RPM and MPH with OD vs non Od automatic transmissions , car has 3:73 gears and 28" tall …. With my old 904 I was at 3200 rpm at 55 mph and 4000 rpm at 70. This thing runs nice on the highway but is a hog off the line absolutely no chance ever of spinning the tires. 9L IDI Diesel Transmission Specs. The TH700R4 give you the option to setup the car with a 3. TH400:s konstruktion gör att sidodeformationen minskar med över 20 %. While stopped with the vehicle running, apply the parking brake and press the clutch pedal to the floor. We will try to keep this short because high stall torque converters is a pretty involved subject. This evolutionary redesign of the American 2. It isn't a problem when empty but when pulling a heavy load I could use some more power to the pavement. Disadvantages of a turbo 400. Great option for high RPM racing applications. A loose bolt on a flexplate or a crack between it’s bolt holes; can result in a knocking or rattling sound. New tires, all balanced, rebuilt front end and aligned. Slippage is minimized, providing better gas mileage and as much as a 20 degree F reduction in transmission temperature. Check into a gas chip plugs in where your check engine connection is and within 100 miles it will adjust to driving and improvise your gas by using a better air fuel mixture and pushing less pressure into your fuel injectors as a result less gas is combusted and less gas is wasted at the cost of a little power …. I wish it had a TH350 to free up some needed power though. 55MPH is roughly 4,000RPM on the highway. One common trigger for major auto repairs is transmission problems. These calculators are designed to give the approximate engine RPM (revolutions per minute) based on data entered. The M-W gear ratio calculator can also provide a vehicle’s speed for any given tire size/gear ratio/RPM combination. 4th on the M6 is the same as 3rd on the Turbo 400. Calculators for Dana Aftermarket. 0 tires i pull 3k rpm at 70 mph no problem to a truck with 3. Check the transmission fluid and make sure that it’s full and red in color. and it is an easy install to replace a TH350. Last I drove it, I had to get up to 3500 rpm before it would shift. I making the redline goal for my 403 5500-6000 even though I will never rev it to. second gear is ussualy what 1rst is ,i. The overall First gear ratio with the TH400 and. It's more fun around town with a manually shifted valve body and the highway cruise rpm is still acceptable up to about 65mph. The Slip Yoke fits TH / Turbo Hydromatic / Turbo 400. Jeep, Ford small-block and Buick V-6 adapters are available to convert your 4WD to the TH400. For our example, we’ll use a common 700R4. I had a rockcrusher built to hold 800hp and about the same torque years and years ago and it was kind of streetable. Notice the 3 bolt circle on the newer flexplate is a smaller diameter than the older style torque converter. Hughes Flexplate Adapter on the snout of my TH400 torque converter. Now a th400 with correct converter will drive fine Very simple if plan to run a 3 speed run a 30" tireIt will help rpms But years ago ran a 373 gear 28" tire 400 combo and 70mph was about 2700 rpms A 30" will drop rpms a few hundred rpms R RedRuM Registered Joined Sep 19, 2010 8,321 Posts #4 · Mar 26, 2017. Gear ratio and tire diameter charts are ideal for making your car. On the other hand, I wouldn't consider anything steeper than a 3. favorite this post Mar 24 Chevrolet/Corvette Transmission Chrome Oil Pan 400TH $25 (Shadow Mountain) pic hide this posting restore restore this …. If tester lights continue with Regular Method. Especially the smaller non-turbo engines need to run at higher rpm's in order to have adequate performance for highway speeds. This calculator is useful for planning your rig, allowing you to see what kind of performance to expect from different combinations. Calculate GEAR, RPM, MPH, TIRE DIAMETER: Wallace Racing BACK to Calculators Todays date is 3/31/2022: This calculator is for entertainment value only. 73 times for one turn of the ring gears, and for a 4. But it will also use more fuel in all situations because the engine's rpm will be higher. $29,950 - Used 2007 Holden Commodore SS-V for sale in Victoria Park, WA. Not only are they much stronger than a C-4, the clutch packs also last longer. GDS2 data showing TCC slip peak-to-peak erratic near 0 RPM to over 100 RPM in a short time is an example of a damaged torque converter clutch. I think the best, easiest choice is a 200R4, less clearance issues, plenty strong as was, or beefed up. 73s – all other things being equal. TH400 has an electic kickdown the attaches to the throttle. Is cruising at 2500 rpms bad for the 6. These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse. Old, worn out, or burned fluid will cause the transmission to run hot. The car was always quiet & smooth. While the TH350 measures 33 5/8 inches in total length, the TH400 measures 38 inches in total. The TH400 is heavier,physically larger and uses more power to turn,if it was me I would choose the. Test #1 (Quick Method) Check For 12 Volts To Terminal A At The ALDL Note: ALDL quick methods, when given, are a way to perform many of the tests at the Assembly Line Diagnostic Link (ALDL). The housing has mounting provision for the hi/low lever. The 400 has 3 gears and no lockup torque converter. 160,000 Km's, 14' insulated aluminum box, New GM Vortec 5. I’m collecting parts to rebuild the TH400 for my Sanger Mini. It will be a smooth rise then will dart up huge increases like 150 or 200 MPH and then got back to the correct signal. I pulled the drive shaft and inspected it. 11's, but with the 700r4 you also get overdrive. Our '72 Trans Am is equipped with its numbers-matching 455 H. TH400 höjer maskinens säkerhetsstandard och effektiviserar din verksamhet. But I thought that it may bring my cruising rpm closer to where the car and it works great (I have a 502 big block and turbo 400 trans). The compression of the LS2 is 10. more often and be taching out at high rpm at highway cruising speeds. I think it makes more sense to start with a better (cheaper, more reliable) 3sp auto trans (th400-c6) and lower the first gear and run a little higher rearend gear then you would with a overdrive trans. oo it credit for,the S10 is a light vehicle and usually not a lot of traction so it will be enough for a milder combo. What you can't see is the 30-plus pounds removed from the OEM TH400 parts. The Cherokee was a redesigned reintroduction of a two door body style, with a single fixed rear side window with an optional flip-out section. Here's what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off. 73's, what can i expect with this? Im looking for any comments and experience with 3. 050 offset intake rockers for drag race only. Im at the point of buying a punisher 4r100 or th400 now just the price of the th400 has me in this thread in this sub-forum in the entire site. And still have a simple and near bulletproof TH400. 11’s out back, and a pair of 26” tall tires putting the power to the ground. So its good on the highway but i didn't build the car to cruise the highway so i may go back to the 3. The trans that comes with this package is a 4L65E with a 3. For example if your 350 cid engine produces 230 lb. But as a general guide, 3:08 rear end ratio with 27" tall tires, probably about 2200 to 2500 stall. I have seen posts regarding the innacuracies of speedos in other threads. Plus, as long as the engine is in the meat of the torque curve, that rpm is usually the most efficient cruise speed range. The TH400 is an automatic shift, three-speed, longitudinally positioned transmission. For our example, we'll use a common 700R4. Low RPM cruising for greatly reduced driver fatigue and an improved highway driving experience. GM introduced the Chevrolet 305 engine in 1976 to provide a smooth driving performance while allowing for lower octane fuels and lower emissions. Just keep it stock, stock tires and keep with maintenance clean the egr vavle, run some seafoam through the intake to clean some of the carbon buildup out thats restricting flow, keep tires at right psi, ect. Sonnax High RPM Checkball Capsule. GDS2 data showing TCC slip peak-to-peak repeating near 60 RPM or less is an example of degraded fluid. Only the largest of the GM cars weighing around 5000 lbs had these trans. I was also looking for an overdrive setup for my '69 deVille when I first got it, but all-in-all, the TH400 is an excellent transmission, if you *really* want to lower your cruising RPMs, swap out the rear end for something taller (the majority of Fleetwoods are RWD, …. Chevy made many thousands of cars with a similar setup and very few of those blew an engine in normal driving. Get reviews, hours, directions, coupons and more for Rpm Services, Inc. My TH400 shifts at 4500 at full throttle in drive. 33 gears, "N" case, Detroit Locker, Summer Bros. look through this link http://www. 750 In Bolt Circle - Th350 / Th400 - Each. 34 660' mph; Car would benefit from hanging around in the higher rpm for the procharger. It is usually located between the engine's flexplate and the transmission. The vehicle may move slightly as the pawl engages. Well I have a dana 44/14 bolt corporate setup that I am going to buy if the gears are right. New Process Gear has a wide range of 4x4 transfer cases! We carry parts for everything from the older NP205, to the highly popular NP261/NP263 HD and XHD. Heat treated aluminum and with a beefier casting, much stronger than …. With respect to the 1970 Chevelle SS quarter-mile time, the legendary LS6 454 was the highest performing option. More stable boost control and greater working rpm range with decreased power drop off at higher rpm levels. Also "Barn Find" has a th400 and 3. If you choose to follow any of these How-2’s, please do so at your own ri. 55 gears) the higher the gearing and the greater number of rotations before the rear wheels turn. Big-tire racers, in particular, like the close-ratio setup of a three-speed, because the lack of RPM drop allows them to keep the tire. It still needs a lot of work, but i need to get the drivability up before i can really tackle the rest of the tuning. The TH400 came in two wheel drive and four wheel drive vehicles, passenger cars and heavy duty trucks, as well as GM vehicles and those made by other …. Here’s what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off. I've been running a TH400 behind a 305, RV cam, 600 Edlebrock, MSN ignition and a 9" Fjord rearend (3:35 gears) in my 51 Chev 1/2 ton. Some were as low as 2500 RPM and some as high as 3500 RPM, but the engines were designed with that in mind and were built strong to take it. [ (Axle Ratio x Vehicle Speed x Transmission Ratio x. 73s on the highway with a 3 speed trans. It was similar to the Wagoneer that was originally designed by Brooks Stevens in 1963. When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. 75 First gear ratio planetary for TH400 trannies, and …. Firebird Runs Its First 9-Second ET. The common 6BT fuel modifications apply to the 4BT, as they share the same fuel. Someone on another site suggested the kickdown solonoid. 10's and 28's i was running 3,500 rpm at like, 68mph (GPS) i wouldn't even want to know what it'd be like if i had 26's on there. The U-joint is NEW Spicer 5-178X. Understanding GM Torque Converters. Such a problem is automatic transmission won’t shift into 3rd gear. At 65 on the interstate in between 3k and 3500. This Unleaded Petrol Utility has done 125,000km. It can be kind of ill mannered in traffic. 41's in the TH400 but it was still screaming on the highway, so your 3. Getting 17 mpg driving 70-75mpg. A modern engine (I would consider the 304-360-401 to be modern) in good condition should run indefinitely at 3500-4000 RPM. 2005 Chevrolet Silverado 3500 DRW LS 4x4 4WD Four Wheel SKU:5F925676. A two-speed Turbo 400 goes 1:1 at the shift point, and this, Beattie Jr. 10 gears, How quite is the transmission and rear end while the transmission shifts from 1-2-3 to reach highway speed? I've notice a slight whine in my car. I have a1969 chevelle I bought that was under constuction. What's it like driving with a Gear Vendors OD?. 20:1 to the formula, it works out to 2,688 rpm as our new cruise rpm. Later I can just go up in RPM to get a little more speed. TH350 has lower gear ratios than TH400. 11s in the rear and it "screams" at 75mph even with a 3rd party over-drive on. Has anybody installed either a late model 4 speed automatic from a C4 or an overdrive on their C3 TH400? I currently have a 383 stroker motor in my '72 roadster with 3. The torque-converter multiplication and the 2. No, its definitely not the most defective transmission on the road. As a result, this can cause it, to wobble. Remember me Not recommended on shared computers. These units are pretty solid for stock vehicles, as we have seen them go for 250,000-300,000 miles with no problems. A 12 valve Cummins will make 450 ft. The TH400 came in two wheel drive and four wheel drive vehicles, passenger cars and heavy duty trucks, as well as GM vehicles and those made by other manufacturers. However 65 usually doesn't do it on my highways as people tend to cruise doing 80 or 90!!!!. Find Hughes Performance Street/Strip 35 Series Torque Converters and get Free Shipping on Orders Over $99 at Summit Racing! If you've got a daily driver that you race on the weekends, and are in need of an excellent torque converter, then look no further. WeP TH400 Plus billing printer to the range of retail billing printers from WeP solutions Limited. 6-liter twin-turbocharged V6 (Macan Turbo. The TH400 came in two wheel drive and four wheel drive vehicles, passenger. Holden GEN 3 LS1 LS2 to TH400/350 4000 RPM Hi Stall Converter. TCI Breakaway Series is a great torque converter for moderately modified street machines and weekend racers also used as daily drivers. Chevy/GM RPO Codes Used From 1967-1986. ATI Racing Transmission Front Pumps and Super Pumps. If I remember right on my 1974 Shasta Class A with the 454 3 speed turbo 400, it was around 3000 rpm's at 60 MPH! It would cruse faster, . 67:1 which is considerably more aggressive than the 700R4’s. Plus, the Overdrive extends the upper speed limit of the vehicle. I would like to know what my highway speed will be with a final 1. The 2022 BMW M340i comes in a single standalone trim that stands at the top of the 3-series lineup and below the M3, and the newly introduced BMW 330e. 31 axle ratio would burn less fuel at highway speeds than one with a 3. I just made a run across Alligator alley in FL and did a long stretch at 90 mph in 6th and was squarely on 4000 RPM. Dave followed that with, “For example, if you had 4. It produces 400 bhp (298 kW) at 6000 rpm and 400 lb⋅ft (542 N⋅m) at 4400 rpm. This form allows you to calculate final drive ratios as well as see a comparison of speeds and RPMs within operating ranges of the vehicle. However on the 10mintest drive that I got out of the last th400 it was insane. I was looking into the new honda fit that has a cvt. come on at 4000 rpm with a rpm activated switch. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine RPM at highway speed. Most TH400 are 1" longer than above, and have a 32 spline output shaft. The torque converter is so essential to the global car market there’s a global torque converter market. 42 and Th400 has been from NJ to colo. , 2) climbing the hills and mountians between Texas, Minnesota, Washington state and Oregon, 3) the amount of weight we carried in the RV. Custom designed parts for street rod and other makes. Testing has shown that OE checkballs are unreliable above 5500 RPM. Speedometer will display a second needle for the comparison. My last 3 speed equipped car (86 Pontiac 6000-STE) at 70 was buzzing along at 3500 rpm at 70. On the left is the lightweight Kilgore TH400 internals compared with those from a factory unit. It's not lifted, but the tires are quite a bit larger than stock. The Most Common Reasons Why a Transmission Slips. It will handle anything you throw at it. Its not like you are driving it to work 15 miles each way on the highway at an 80mph cruising speed everyday. But the gas mileage is 11 average. 88’s, I was still turning the same engine RPM’s to maintain the same speed as I did with the 3. 75 inch flexplate bolt pattern - 500 Horsepower Maximum Applications: 8. this will drop your 60 MPH RPM down to about 1500 RPM. This was a car designed with that transmission and gearing and had a 'tune' in it to get the most out of the combo. 90 rearend gear ratios falling in the 3-Series, and 4. It was introduced for the 1965 model year and made its debut in Cadillacs, and is respected for its durability and adaptability. Use the mile markers on an interstate highway or a speedometer test zone. TH350 is a bolt in replacement for a powerglide so it is a popular upgrade for Camaros that orig. While the indicator was originally located in the dash clutser, the parts used to repair the factory set …. That will do wonders for engine longevity. 5-15 Mickey Thompson tires the Chevelle hooks up nicely and feels nothing but nasty. Hyd flat tappet XE274,RPM Performer,750 Holley, 1 5/8 tubes, 2. Joined Mar 23, 2002 747 Posts #6 · Jun 4, 2005 VeilsideTT said:. Calculate GEAR, RPM, MPH, TIRE DIAMETER. #14 · Jan 30, 2015 (Edited) 2013 Mazda3 i touring auto checking in. The "not slowing down with foot OFF the gas (at 30mph)" issue was the result of a malfunctioning fuel intake regulator (I guess it had runs its course after 140K miles). My factory-fresh '73 CJ with 4. I am currently switching mine to a th350 as well since with my build I'm not worried about mpg. But with so many different types of vehicles benefitting from this blissful form of forced induction, there are bound to be failures. Mods to get better gas mileage on a 454. This shifter is truly a work of art! M&M Transmission is well known in the drag racing community to provide some of the best transmission components, and we are proud to carry their products!. This chart provides values that represent a 1:1 ratio on a manual transmission. Transfer Case Adaptor – TH400 to LandCruiser 5-Speed (Split Case) AUD$ 2,644. When coupled to our 184 mm adaptor housing gives you an overall transmission length of 800 mm/31. Enter the tire size diameter and the target vehicle speed in MPH. Our shop car wheeling past the 60ft! This car uses our RPM TH400/9in combo. 88’s and that’s what causes the fuel mileage hit. The difference was when driving on the flats at 70 MPH or faster, I was turning higher engine RPM's with the 4. I track my car for the most part now but when I'm done the 6L80 will go back in. It’s been said that because of the angle and the trans being. That big beast had a 383" and it got 18 mpg on the highway. It is recommended for applications that call for the former DEXRON-III H, MERCON, and Allison C-4 fluids. I believe that I was turning a little under 3000 RPM (27-2800?) at 70 MPH. 6L V-6 Engine Automatic Transmission 32,000 miles (yes, low mileage) Original owner. This calculator will help your hot rod or street machine get to the next level without red-lining your engine. 5 tall rear tire and it is almost perfect,highway rpm on the 350 is 2200 at 60. Use this calculator to determine your gear ratio and vehicle's speed in any gear and any engine RPM for best performance. About Th400 Highway Rpm 5-15 Mickey Thompson tires the Chevelle hooks up nicely and feels nothing but nasty. In a vehicle with an automatic transmission, the torque converter connects the power source to the load. Highway RPM with the 200R4. Therefore, the higher the ratio (4. 73's, what can i expect with this? …. 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. For a stock 350 or a TPI engine (stock) that only RPM's up to say 4800-5000 RPM's with something above 3. 7lt Gen 3 Hi Stall Torque Converter 3800-4200 RPM LS1 LS2 LS3. A lot of guys have suggested I simply go to an overdrive and truth to tell I wouldn't mind one, but the car still has lots of performance (462" & 2400#) with the 3. 240500 TCI Chevy TH400 Maximizer Towing Torque Converter. Street driving TH400 , what it's like with no Over Drive!. That computes to a highway cruising speed of 72 mph at 3,200 rpm, adding the 200 rpm for converter slippage. In the auto mode it goes into overdrive at 45mph and drops out under 45. Once installed, setting up the controller is a hassle-free process. Automatic transmission in overdrive. stroke, the layout thoroughly embraced GM’s latest short-stroke theories, while generous 4. You can purchase one (p/n CAL) online for $3. If your car has an automatic transmission, one of the most disconcerting noises that you can hear coming from your transmission is a grinding noise. Equus Tachometer Gauge 6080; 6000 Series Tachometer 0 to 10,000 RPM 5" Full SKU: EQU6080. 3300 rpm @ 80 is a little high imo. -Billet aluminum pro-mod direct drum. This promotes excellent fuel economy and drive ability because they are specifically designed for these purposes. Yes, highway rpm increased as well, but I rationalized it by deciding that 3. dition of the TH 400 has a slightly thick-er bellhousing casting to reduce the chances of cracking with the heavy transfer-case loads placed upon it. Send a private message to shawnp. Driveshaft Shop 9 inch housing fitted with an aluminum center section from Moser Engineering. 4L80E is the electronic overdrive version of the TH400, introduced in 91, used in trucks behind the big block and other heavy duty applications. Rpm Transmission; 406c Belvue Road; Travelers Rest, SC 29690 (864) 553-9493 Visit Website Get Directions Similar Businesses. TH400, so it’ll bolt right up to the TH400 transmission crossmember. Video of me comparing what you would see for RPM and MPH with OD vs non Od automatic transmissions , car has 3:73 gears and 28" tall tires . 2L Nissan SD22 (65 hp at 4000 rpm 85 fp torque) Logged. AFR heads are available bare (without parts), call our tech line for details. 73 and lower rearend gear ratios falling in the 2-Series, 3. OK so everybody was right, you can bolt a TH400 to an LS1 motor, but thats it. It's my understanding that the [CW - coded] Turbo 400 in a 1970 Z28, has a 2400 rpm torque converter. Transmissions are the same, engine is the same, wheel base is the same, suspension is the same, payload is the same gvw is the …. 23s or lower, trust me my uncle has a 454 backed by a 350 in his truck with 4. This 7-3/8" long extension housing can eliminate transmission. For minimal highway driving it would probably be fine. First, and most significant, measure will be to change the gear ratio. It's only a high 12 second car but it's a rocket ship on the highway. The 4L80E transmission design is heavily derived from its TH400 predecessor. There is a solenoid in your GM converter that causes the the torque convertor clutch (TCC) to engage and disengage. The Turbo 400 is rated conservatively at peak torque of 450 lb-ft. Our Tire Height Calculator and Gear Ratio Calculator can be used for the first to attributes but the user’s knowledge of the transmission ratio is assumed. A portion of Highway 1 near Big Sur, Calif. One of the advantages of the TH350 is it is very short for a strong automatic. Example: Adding to the last example. The converted flashed to around 4k rpm and the tires went up in smoke. CHASSIS Suspension (F/R): multilink/multilink Brakes (F/R): 14. Heated side mirror's and convexes unit is completely set up for night work. Buy in monthly payments with Affirm on orders over $50. Generally, a stall speed when selected to go with your converter is going to be 500 – 700 rpm’s below the engine’s peak torque. Tailored for the street / strip individual that runs a 3000+ RPM converter. The transmission filter is there to keep contaminating particles out of the transmission fluid. The sound is very similar to a bad connecting rod and is often, misdiagnosed. Lock-up eliminates the slippage, which reduces heat and improves fuel economy. Share ผ้าไทย everywhere for free. If you have the cash get the 4L80. The original owner ordered the Sport Coupe equipped with the L72 version of Chevrolet’s 427ci V8 that churns out an incredible 425hp. 90 rear axle gear ratio as an example [2. Out of Stock (Call For Availability and Ship Date) $353. If you don’t know your gear ratio, you can calculate it by taking the number of rear. It is widely regarded to be a supremely durable and legendary transmission. As of now it starts decent and runs decent, just need to get this weird almost stalling issue figured out. If you have an Apple Machine: Use ⌘ + F (Command + F) to type in the RPO code and find it in the table. If you find a low fluid level, ad BlueDevil Transmission. 90:1 for drag strip performance. Keep in mind that our calculator does NOT take into account drive train loss, road and weather conditions, or the skill of the driver. all the math is fine but what you have to take into account a 4000lb car coming out of first gear at a much slower speed[mph] with the low gear set ,we have tested them way back when they first came out and the drop 1rst to second is to much for heavy cars,it …. What is the torque sequence of your head bolts for a Cadillac 4. NEW NUMBERS SHOWN IN BOLD FACE TYPE CHEVROLET Small Block V8 1955-95 (Continued) Mechanical Flat Tappet Cams262, 265, 267, 302, 305, 307, 327, 350, 400 C. Start by checking your transmission fluid level and condition on the dipstick. 9L’s common failure of cracked heads. The TH-400 is/was the attempt to create a light tank, according to the example of the italian Centauro, for the german Bundeswehr. When the ECM signal stops, the solenoid closes the valve and pressure is vented, causing the …. My end goal is to update suspension, convert to a manual transmission, possibly. I run a built 700R4 in my coupe with 390 gears and 275/65/15 tires and it wants to run 80 at around 1700 rpm on the highway before it's comfortable. A car will perform much better with a 3. Not only is it noisy, but it's a lot of wear on the engine. However, when the engine turns more slowly it causes the torque converter to slip, creating heat. ICT Billet Billet Aluminum TH400 Speedometer Plug Turbo 400 Chevy Transmission SBC 305 327 350 383 5. Please see footnotes for additional information. 2100 lb T-bucket, SBC with maybe 400 hp. Maximizer High Towing Torque Converter 65-91 GM TH400, 425, 375 w/ Wide-Bolt Pattern. Stay up to date with the latest releases, events, promotions and more. AdioSS wrote:you should be able to run mid 10s on motor alone with what you described if you gear it right with a good converter in a TH400. High speed high RPM balance each driveshaft meticulously for the best performance throughout your full rpm range. Obviously I dont have all cars memorized so I cant tell you what rpm it should be but, fortunatly I have a customers car here 02 Jetta 2. Yea, dont do the th400 swap if it is a daily driver or your worried about gas mileage. AUTO MUSEUM LTD started its journey in 1991. With an overdrive transmission your RPM in overdrive will be 15% to 30% less than indicated. Why go TH400? Those are kind of a pita to put in a g body, the th2004r is a better trans for a driver or anything that will see any highway use. The tire size is a given on our cars. 100 mph was closer to 4300 range for me. It's basically the decendant of the TH400 but with a 0. It should be mentioned here that lower axle gears (higher numerically) are inherently weaker. For applications where high shear force or increased low end torque are required a spragless stator is recommended. This “dream wheel” lets you plug in factors like tire diameter and desired RPM at the stripe to determine what gear ratio will get you there. Nothing there below about 3K RPM and would run to around 8K if the engine could breath and held together. 73's will really make it tach out you won't like it. Using the speed/gear calculator I feel that cruising on the highway at 70mph @ 2800-3000 rpm would be too much for long drives as the highway speed limits here are generally 70 with people cruising much faster. Advanced Adapters GM 4WD Th350 3 Speed Automatic Transmission to Jeep Dana 300 Adapter Kit. The TH400 is conservatively rated at 450 ft. The automatic madethe car have no lag at all. If you change the final drive ratio to a lower number, the engine speed will decrease, and fuel mileage on the highway will improve, but accelleration will decrease. The new TCI® GM 700R4 Transbrake Valve Body Kit allows the user to stall the converter for optimal torque off the line. First there's the ATI Supercase TH400 with transbrake rated at 1,500 HP. I believe my existing TH400 is pretty well built so no concern with it in general other than highway RPMs. This engine produces a maximum power of 295 PS (291 bhp - 217 kW) at 5500 rpm and a maximum torque of 431 Nm (317 lb. An overdrive gear of this nature on the 200-4R is equivalent to a low RPM when one is driving down a highway. When it does shift, it shifts pretty hard. com): Ordered TH 400 transmission less than a year ago and it is destroyed. com/images/112573/TH400%20DISSASSEMBLY%20TECHNICAL. But if you manually shifted it it would upshift around 1800 rpms. The TH-700R-4 (four speed) 1st gear is lower than the TH-400. The 301 Turbo 210 hp (345 ft lbs torque), while the 305 needed TPI and a roller cam to get there. The plan is to put a mild build on the motor (300-400hp), get the TH400 rebuilt and mating it to a Gear Vendor under/overdrive to help the MPG. This trans is significantly larger and heavier than its three-speed predecessor, but like the 4L60E it is easily employed for performance use in. Once I give it gas it starts to accelerate again once the RPMs get up to speed. TCI High Torque Towing Converter 1965-91 GM TH400/TH425/TH375 (13" converter) Part 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. This is a very serious T-400 with high amounts of special parts. First it started with my partial throttle shifts being very high. The Sun Coast A1-6VB-TCM-LB7 Allison 5-6 Speed Conversion for your 2001-2004 GM 6. You can order the torque converters with a 2,600 to 4,500 rpm stall. 400 V8 225 bhp @ 4000 rpm, 330 lb-ft @ 2800 rpm. Th400 Highway RpmTh400 Highway Rpm rpm x tire diameter. with the gas money you saved in 1 year. The BDE TH400 kit is organized into stages to allow you to choose only the components needed or customize to your liking. 10s and higher are popular choices because of the power on demand they allow at the track, a place where. 1548 Old Bayshore Hwy, San Jose, CA.