Torque Converter Stall Test

A torque converter’s job is to take the horsepower an engine produces and multiply that to make the car accelerate. 7 Power Stroke diesel. Higher Stall Speed/Gear Engagement RPM The ‘stall speed’ is the point at which the engine RPMs are high enough for the torque converter to transfer power from the engine to the transmission. The stall test is used to determine the condition of: The torque converter Specific holding devices in the transmission Engine state of tune Torque converter stall occurs when the engine-driven impeller rotates, but the turbine (connected to the transmission input shaft and drivetrain) does not. Diagnosed that it was likely bad torque converter as well as separately that there were misses - likely due to carbon build-up. To perform a stall test, install a tachometer, chock all four wheels, and set the parking brake. A looser torque converter exerts less resistance on the engine. Because of thisw I suggest a torque converter with a stall speed of 3400-3800rpm. A properly working torque converter is something your car's transmission needs to function. I seriously doubt the converter is ballooning. This allows the transmission to operate more efficiently at higher RPM. but there are two, one with stall speed 1420, and one with 1895 stall speed. Each TCI® converter is built to exact specifications and is Triple Tested during assembly. The stall phase actually lasts for a brief period when the load (e. The aftermarket performance converter that is properly matched to the turbo system will allow for maximum acceleration. 2/TH400 are the 3 bolt GM3, and the 6 bolt GM6. If the peak torque is at 2500 don't use a converter with stall above that, as an example. With torque converter lockup, you won't notice anything different between stock and 3500 stall converters at highways speeds. if you test low, the engine is the problem. 980 60 foot time (12/13/14). What do you have for carb, heads, compression, cam, rear gears, and rear tires?. GM-1073-3D 2,600 RPM stall Speed Converter SKU# GM-1073-3D SunCoast Allison 1000 torque converters come in many varieties, from heavy hauling, sled pulling, drag racing, to daily driving. When I take off from a dead stop, the truck revs a little then engages. Every explanation I have found sounded more like hand-waving than quantitative physical explanation. Starting torque is the maximum torque that can be produced by a motor in order to start rotational movement of the load. Can't find something? Try searching. ) the unit shifts 1-2-3-5-6 with torque converter clutch. For instance, a 318 2bbl may only stall up to 1800 in Denver, Colo. ATI Performance Products shows you how to determine the stall speed needed and torque converter selection for your Chevy. The first generation. Diagnosed that it was likely bad torque converter as well as separately that there were misses - likely due to carbon build-up. Frequently, there are many reasons for failing the torque converters such as overheating, issues related to stall speed, or dirty fluid. Torque Converter Stall Test. Since you know how to duplicate the issue at hand, this will give them a very good example. There are four main areas to address when dealing with torque converters: operation, identification, diagnosis and rebuilding. In order for our customer's to make informed decisions, we feel that is important for them to know what they are shopping for. Testing a Faulty Torque Converter. To determine the. Which torque converter? This is a discussion on Which torque converter? within the Automatic Transmission forums, part of the Drivetrain category; I'm getting ready to order a ~3000rpm torque converter. " A stall test will reveal the maximum engine rpm that converter can handle with the brakes applied. 3L Power Stroke Diesel - What OEM torque convertor stall speed? - Transmission shop ask if I want change stall speed on this 2000 F350. A systematic checkup by a professional is the best way to isolate the cause of the operating problems and recommend the most effective solution. ) becomes less relevant for • vehicle performance and • fuel economy. If a high performance engine makes power at a higher rpm, then a higher stall speed torque converter can put more power to the ground quicker. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model. A torque converter, common to automatic transmissions only, is the equivalent to a clutch in a standard transmission. which is the correct one?. The 48RE/47RE has 1st gear TCC capability, and when the solenoid is mechanically restricted it will cause the TCC to apply in first gear. Hays 3200-3600 Stall 4L60E/4L65E 3/4 Race Torque Converter 97-1H32Q Features: 3/4 Race series converters are built, tested, and proven to support up to 650 HP. The one-way clutch allows the stator to rotate in one direction only with the engine’s crankshaft and converter impeller/shell. Once a converter is apart we will call to confirm whether it is a matter of simply changing the fin angle to adjust the stall, or if there are internals that need to changed. This involves rolling down the road at about 15-20km/h and then standing on the throttle. Online diesel mechanic course and training about Automatic Transmission and Torque Converters. This is definitely a street/strip/race converter. The conversion result will immediately appear in the output box. I am looking at aftermarket converters and would like some input on stall speed. Replacement torque converters with higher than stock stall speeds are available for performance applications. To perform a stall test, install a tachometer, chock all four wheels, and set the parking brake. If the cooler passages are blocked fluid is unable to exhaust from the torque converter and the converter clutch piston can be forced to engage when reverse is selected. Good evening everyone, I need some help understanding the concept of torque converter stall. 56 gear ratio, the torque converter would in fact stall less due to the lower resistance needed to move the vehicle. Units are then computer balanced to reduce annoying and potentially damaging drivetrain vibrations (these can occur from an improperly balanced converter). hand brazed, reinforced impellar and turbine fin tips. The Tahoe transmission torque converter, when replaced, improves a variety of issues that are present in faulty torque converters for Chevy Tahoe. I have a '14 5. I have already spend a lot of money trying to get the check engine light off, but I still have that problem. As a rule of thumb, the smaller the diameter of the converter, the higher the stall speed RPM will be. C ompetition. TCR626 TF6 A904 Jeep Torque converter, test torque 1978-on This is a lockup design converter with the lockup clutch omitted. Amazingly enough, this lone misconception is the belief of many car builders today. He installs it in a Camaro that has a 500HP 454 engine. Hays Twister 3/4 Race performance torque converters are a perfect addition to our line of performance flexplates, clutches, and flywheels. To test the torque converter, you need to perform a "stall test. However, the amount of actual stall variation is dependent upon two (2) important factors regarding the torque converter to be used in your car: The amount of torque your engine produces at the preset rpm stall speed and the converter's size and configuration. Testing for Bad Torque Converters. BD's 7X torque converters out pull the rest, whether it's towing or racing! BD's X-stator is machined from a solid piece of aluminum. A speed-stall test helps to determine if a vehicle is experiencing a torque converter problem. TCI Automotive has recently released its latest torque converter for the 6L80, and it incorporates a lot of technology from the racing world. It might be close enough to work with your new cam, but if it isn't you can buy a converter with 25 year newer technology that will outperform your old one. What is the symptoms of a bad torque converter? The truck will also shudder while in drive, until after it has been driven a while. To avoid damaging the vehicle, release the gas pedal in between each gear setting test. I thought lower stall they best fuel mileage and cooler. Stall Speed is the speed in which the Torque-Converter will hold the Engine Speed, and will not allow further gain. A video series to explain the basics of a torque converter, how they are built, the parts inside a torque converter, and general overview of how a torque converter works. You also get a 29 element Borg Warner forward sprag and a quality built torque converter with your choice of stall speeds of 1600 to 2000 RPM’s. 160 likes · 3 were here. Testing a Faulty Torque Converter. Online diesel mechanic course and training about Automatic Transmission and Torque Converters. (1) If the stall speeds are below 1,450 rpm, and the (3) Low pressure in "D" and "R," but correct pressure vehicle operates properly at highway speeds, but has poor. Another way to see if you have a broken torque converter is to put it to the test. Your value gets instantly converted to all other units on the page. ProStreet & ProRace Torque Converters: 8” and 9. However, the amount of actual stall variation is dependent upon two (2) important factors regarding the torque converter to be used in your car: The amount of torque your engine produces at the preset rpm stall speed and the converter's size and configuration. Follow the Repair Procedure in TSB 0023-15 to address this condition. Generally, stall speed is limited to 1,500-2,000 rpm to prevent overheating the transmission oil. Place the selector lever in the "R" position and perform the stall test by the same procedure as previously described. 7 true track All new suspension and brake system new GTS wheels GTS dash GTS steering wheel Sony sound system Recaro interior Too much to list, pls call. These torque converters are designed for use with a trans-brake and great for power adders such as nitrous, superchargers, and turbos. Although the 11. Torque Converter Help Well, I've done a lot of searching around here, and haven't been able to find out what kind of actual parts/specs to look for in a replacement torque converter. I have 2003 Silverado 1500hd with a 408 ls and a 4l80E B&M transmission and 2000rpm stall torque converter also from B&M. The stall speeds will be higher than normal due to the bad torque converter because it'll take longer for the transmission to engage the engine. The stall speed rpm of your torque converter is the point at which your vehicle starts to move, regardless of throttle input. I don't know how accurate of a simulation it is, but it feels right, and is stable with every car I've tried it on in a variety of conditions, although it. Torque converter stall speed is just the highest speed the engine can turn the torque converter when the truck is kept from moving. Dodge 47re 48re 5. The P0741 fault code is a transmission fault code for “Torque Converter Clutch Performance or Stuck Open”. How to Test for a Bad Torque Converter We may be looking towards a future of self-operating cars , but in the meantime, the task of diagnosing auto problems still falls to human technicians. Stall speed is the highest rpm the impeller can move before the turbine must move. High Stall Converters A high stall converter differs from a stock converter in the sense that the rpm is raised at which the internal converter components- the impeller, the stator and the turbine start to turn together, and hence, stop the torque multiplication phase and begin the coupling phase. Why? The altitude in Colo will rob low end torque. There is a flex plate in this area where the torque converter is installed onto. Failure of transmission/engine disengagement when coming to a stop is a sign of either a broken torque converter or one in which the lock-up mechanism is not disengaging. At full throttle, the brakes won't hold beyond 2300, so the actual stall is unknown. A trained transmission-service technician can also test for torque converter lockup using a specific vehicle scan tool. If the peak torque is at 2500 don't use a converter with stall above that, as an example. , and put it neutral and rev the engine a little for about a min. Torque converter stall occurs when a locked torque converter causes the engine to stall. Torque Converter Tester PTU & Axle Tester FF AT Durability Test RIG Torque Converter Tester DCT Clutch Module MGF Tester Oil Pump Tester Check torque converter hydraulic function. TCI BREAKAWAY® CONVERTER, GM, 1965-91 TH350/400 With DUAL BOLT PATTERNThe first step into serious high performance, the Breakaway® is a great torque converter for moderately modified street machines and weekend racers also used as daily drivers. A transmission with a trans-brake will generally apply the first gear and reverse gear simultaneously, causing the transmission to lock solid. , vehicle) initially starts to move, as there will be a very large difference between pump and turbine speed. Vehicles manufactured after 1980 generally include these sensors. From the initial concept to the finished piece, every product that TCI makes undergoes exhaustive quality control testing to ensure that it will put the power to the pavement without failure - every time. ¥ To check the operation of the torque converter. THE TRUTH ABOUT DYNAMOMETER READINGS AND HIGH STALL TORQUE CONVERTERS There is a misconception and a lot of misinformation about the poor vehicle performance numbers that are generated by testing a car with a high stall torque converter on a dynamometer. Testing, Testing, and Testing: We rigorously test our torque converters to ensure it's quality before it leaves our re-manufacturing facility. As our 2017 Mustang GT progresses through each of those stages, the factory torque converter found in the 6R80 six-speed automatic transmission just isn’t going to cut it. Answer C is wrong. Torque converter clutch solenoid. 762 60 foot time (2/24/14). I'd like to read your report on how that 10" 2600-stall drives, I had mixed experiences with my 12" 2400-stall TorkMaster. Precision of New Hampton is the largest privately -held torque converter remanufacturer in the world. Other factors, such as where the work is done (whether at a local auto repair shop, car dealership or you do-it-yourself) also factors heavily into the cost of repair. There is a separate LED shown in the schematic that will indicate whenever the torque converter is locked ( light on ) or unlocked ( light off ) whether by the ECM or the TC Lockup switch. Part # 1030226. transmission failure. The 289 has a mild cam 570 street avenger, 2 1/4 dual exhaust,magnaflow mufflers. Unfortunately, this can lead people to think that they need to spend thousands of dollars to rebuild or replace their automatic transmission when the cost to replace a malfunctioning torque converter is considerably cheaper. This makes for a turbine that can withstand well over 700 hp as tested on TCI's unique, torque converter dyno. They manufacture the stator with fin lengths, angles and curvitures designed to meet the torque of the 5. torque converter characteristic (loose/stiff, stall torque ratio and peak efficiency, etc. B&M HOLESHOT 3600 Stall Torque Converter (GM TH350/TH400) - BM20425 - $960. 488 106 110 2000-5500 rough 817 b comment: good mid range torque. Get proven performance and reliability from B&M, TCI, Turbo Action, Hughes Performance, ATI Performance Products, Performance Automatic, and other leading brands. ABOUT THIS MANUAL This handbook is a mechanic's reference for maintaining, removing, or installing the 3000 and 4000 Product Families on-highway transmission with a WTEC III. As our 2017 Mustang GT progresses through each of those stages, the factory torque converter found in the 6R80 six-speed automatic transmission just isn’t going to cut it. The torque converter is located in between the engine and the transmission. That's about all I have to add to this thread. Always check with the vehicle manufacturer before beginning this test because it can damage the transmissions of some vehicles. Any freshen up, restall or repair includes all new bearings, pressure test and balancing. In order to check your torque converter, you might have to perform a stall-speed test. TCRS® sets the industry standard for precision alignment and is the only system available with all the tools to do the job right,. This is the same as your stall speed. The primary thing to remember about torque converter stall speed is that a particular torque converter does not have a "preset from the factory" stall speed but rather its unique design will produce a certain range of stall speeds depending on the amount of load the torque converter is exposed to. The one-way clutch allows the stator to rotate in one direction only with the engine’s crankshaft and converter impeller/shell. you need a converter for a stock application say, a 305 small block in a 77 station wagon with th350. 63 ATS Five Star SSP GR6 1000800 Torque Clutch Package 16 P FOR NISSAN SKYLINE R35 GTR VR38DETT: $2,441. It takes place of mechanical clutch in an automatic transmission. True, when you mash the throttle, the stall speed of the converter does come into play before the vehicle begins to move. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model. I have a big block duster with a 727 running a stock torque converter (I can only brake torque it to about 1200-1400 rpm). Never Stall it for longer than 30 sec. What happens when you have a major transmission problem and are getting conflicting advice from anyone who has ever picked up a wrench? I did three days of research on all the local experts, called them for estimates, read internet reviews and asked around. Notes 1,900-2,400 rpm, Actual stall speed may differ due to engine combination, gear selection, and vehicle weight. Simply put, it's the maximum RPM it allows the engine to reach without transmitting any power/ rotation into the tr. Leading provider of high performance automatic transmissions, torque converters and drivetrain components for race, street/strip, hot rod, street rod and towing. The stall phase actually lasts for a brief period when the load (e. Recon Torque Converter, Low Stall, for RE0F10A (JF011E) Transtar Part Number: CR33N01 A high-quality processes ensures that the product meets or exceeds OE functional specifications. I searched the NET trying to find what the torque converter stall speed is on the 5 speed auto and cannot find it anywhere. The pump (the side of the torque converter that pumps the fluid into the stator) is bigger on the 6. Never put your vehicle to the test with hard power braking at wide. Torque converters can fail for many reasons, including dirty fluid, overheating and problems with stall speed, which is the RPM at which your torque converter shifts power from the engine to the automatic transmission. hand brazed, reinforced impellar and turbine fin tips. This means that a torque converter designed to stall at 3,500 RPM with a mild small block might stall might stall at 4,000 RPM behind a fire-breathing LSX454R with 720 pound feet of torque. Testing a Faulty Torque Converter. Also consider the resistance you will have against the engine. The stall test checks the holding capacity of the converter's stator overrunning clutch assembly and the clutches and bands in the transmission. When there is no rotation in the motor, the wound coils are acting as a fixed resistance. When people would complain about torque converter clutch problems and the 125C was installed we ran a quick test. That's about all I have to add to this thread. Torque Multiplication Torque converters can multiply torque at a 2:1 to 3:1 ratio Exact amount depends on the design of the impeller, stator, and O turbine and impeller RPM The point at which maximum torque multiplication occurs is near O the stall speed of the converter During the torque multiplication phase, turbine speed is significantly lower than impeller speed A torque converter attached. Proven winners for your turbo Buick GN / Regal 78-88. Torque Converter Stall Test. 5:1 ratio over actual engine torque at stall speed. The torque converter is only a small part of your automatic transmission. l If engine speed is high, go to Transmission Malfunction 10. The design promises to improve fuel economy in the EPA’s city cycle by up to 6. Replacing a torque converter is a fairly big job and they aren't that cheap. This converter is very easy. BD Diesel Triple Torque Force Big Spline Track Master Converter for Dodge Cummins 1994-2007 47RH/47RE/48RE (High Stall) (0) Reviews: Write first review Item #: 1071218X-HS. The speed of the engine at torque converter stall indicates whether the engine and the. In order for our customer’s to make informed decisions, we feel that is important for them to know what they are shopping for. The primary thing to remember about torque converter stall speed is that a particular torque converter does not have a "preset from the factory" stall speed but rather its unique design will produce a certain range of stall speeds depending on the amount of load the torque converter is exposed to. A broken spring can cause the valve to become stuck and result in converter clutch release complaints. The torque converter is 2400 stall, not sure if lock-up or not. Precision of New Hampton is the largest privately -held torque converter remanufacturer in the world. mc1995 hyd 4 234 244 303 313. The same converter will stall at a lower rpm behind a less torquey - higher rpm engine. This is the only way to test a converter’s true stall. 05 tc-211 2. ¥ To check the operation of the torque converter. At idle, oil coming off the turbine blades hits the stator blades in such a way that the stator wants to turn the wrong way. To avoid damaging the vehicle, release the gas pedal in between each gear setting test. The torque converter converts the power from the engine, seamlessly and smoothly to the transmission instead of having a clutch to assist on take off as in a standard transmission. Hays 3200-3600 Stall 4L60E/4L65E 3/4 Race Torque Converter 97-1H32Q Features: 3/4 Race series converters are built, tested, and proven to support up to 650 HP. Read on for more details, test results. This is true for a 3000 RPM converter. 5:1 ratio over actual engine torque at stall speed. For example, if an engine makes 100 lb-ft of. If your camshaft has an operating range of 1,500 through 6,500, you would select a torque with a minimum of 2,000 rpm stall. ATS Five Star Torque Converter For 11-19 Ford 6. Shift your transmission into drive. Recon Torque Converter, Low Stall, for RE0F10A (JF011E) Transtar Part Number: CR33N01 A high-quality processes ensures that the product meets or exceeds OE functional specifications. Its job is to redirect the fluid returning from the turbine before it hits the pump again. The stall test is of extreme importance in diagnos-ing the condition of the automatic transmission and the engine. Torque Multiplication Torque converters can multiply torque at a 2:1 to 3:1 ratio Exact amount depends on the design of the impeller, stator, and O turbine and impeller RPM The point at which maximum torque multiplication occurs is near O the stall speed of the converter During the torque multiplication phase, turbine speed is significantly lower than impeller speed A torque converter attached. Leading provider of high performance automatic transmissions, torque converters and drivetrain components for race, street/strip, hot rod, street rod and towing TCI Stall Speed Chart JavaScript seems to be disabled in your browser. Bad Torque Converter Clutches- Modern torque converters will lock to create a true physical connection between the automatic transmission and the engine. Postofficejoe 29,784 views. 4:1 at 1,600 rpm. Power Adders or Naturally Aspirated. Almost all HAYS converters are built for one application to reduce weight compared to a multi-bolt pattern converter. The Tahoe transmission torque converter, when replaced, improves a variety of issues that are present in faulty torque converters for Chevy Tahoe. A video series to explain the basics of a torque converter, how they are built, the parts inside a torque converter, and general overview of how a torque converter works. Avoid performing the speed-stall test on vehicles with anti-lock brakes to prevent damaging them. The primary thing to remember about torque converter stall speed is that a particular torque converter does not have a "preset from the factory" stall speed but rather its unique design will produce a certain range of stall speeds depending on the amount of load the torque converter is exposed to. torque converter stall speed test A stall test can be used on many older transmissions to check its ability to hold torque and the operation of the converter one-way clutch. Brake Stall is attained when the transmission is put in gear and the brakes are held with the brake pedal and the accelerator is slowly pushed to the floor. Low stall means the flash-stall point is somewhere between 1,800 and 2,600 rpm. As our 2017 Mustang GT progresses through each of those stages, the factory torque converter found in the 6R80 six-speed automatic transmission just isn’t going to cut it. In order to check your torque converter, you might have to perform a stall-speed test. 2 Click the Convert button. Here are my car/engine specs:-. the internals in the converter that blew up spread out and ballence out. Model Build Information MN7 (perfered transmission for FIERO swaps). Was this site helpful?. Once again, the more torque your engine makes, the higher your torque converter will stall. understand that torque converter stall speed depends on the power output capabilities and characteristics of the engine it's mated to. Torque Converter Rebuilding Systems. The following is a quick stall-speed test to find out if your forklift is having issues with the torque converter: Check with the manufacturer of the transmission to ensure that running the test on the torque converter is safe. Re: good torque converter stall speed? The higher stall speed keeps the R's up where the engine develops more power, even with a low end cam it'll have much more HP at 2000 than 600. When accelerating, the torque converter transfers increased torque to the transmission. Start studying Torque Converters. My Mustang is a 5spd but the 67 Camaro I had before was a Turbo 350, 4:11 gears with a B&M 3000 stall Superholeshot converter. Torque Converters now with lower prices and shipped Free, Monster Torque Converter, Stall Converter, Stall Speed, Performance Torque Converters and more. If the cooler passages are blocked fluid is unable to exhaust from the torque converter and the converter clutch piston can be forced to engage when reverse is selected. Replacing a torque converter is a fairly big job and they aren't that cheap. 2800+ stall converter. Torque Converter Stall Speed To test the stall on your current torque converter: With the engine running and the brake pedal held firmly with your left foot put the selector in drive and depress the accelerator fully to the floor with your right foot for two to three seconds. The idea is to place the system under stress to see what parts, if any, fail to operate properly. You will see the engine speed go up 200 rpm, then drop back down a few seconds later when the torque converter relocks. Hays Twister 3/4 Race performance torque converters are a perfect addition to our line of performance flexplates, clutches, and flywheels. Torque is a pseudo-vector that measures the tendency of a force to rotate an object about some axis. We are the largest privately held Torque Converter manufacturer in the world!. Was told torque converter sticking and that draining transmission and refilling with lubricant would help problem. Torque Converter Stall Test: Stator and Stall Speed. Hays Twister 3/4 Race performance torque converters are a perfect addition to our line of performance flexplates, clutches, and flywheels. The aftermarket performance converter that is properly matched to the turbo system will allow for maximum acceleration. We are different in our approach as many of competitors sell on stall speed alone while we match our products to the power level of the engine and the. 030" over 400 big block-9:1 compression-Edelbrock performer rpm intake w/ 750 Holley vacuum secondary carb. The 2000 Dodge Ram 1500 has 11 problems reported for transmission and torque converter failure. High Stall Converters A high stall converter differs from a stock converter in the sense that the rpm is raised at which the internal converter components- the impeller, the stator and the turbine start to turn together, and hence, stop the torque multiplication phase and begin the coupling phase. Some manufacturers do not recommend using a stall test because it stresses the transmission, so if you use this procedure, do not do it for more than five seconds at a time. Generally speaking, the smaller the converter, the higher the stall speed. Stopped by my local mechanic and had him test ride with me with the truck hooked up to a computer. Heavier cars of 3,000 pounds or more would want to be closer to 1,800-rpm flash-stall speed. Dacco Torque Converters We will custom remanufacture your Dacco Torque Converter in 24 hrs, rebuild costs range from $250 - $400 Please take the time to look at our website so you can can see what we are about. Fluid pressure it routed through the input shaft into the converter clutch, which engages the clutch. higher stall speeds would be desired for camshafts with a higher rpm powerband: if you bought a cam with a max power range from 2500-5500 rpms then you would probably want a stall between 2000-3000 rpms. So yes, a guy could pick up a touch of stall in a 6. Looking for abbreviations of Str? Software Test Report: Str: torque converter with available stall torque ratios of 2:1 and 2. TPI was founded in 1977. Amazingly enough, this lone misconception is the belief of many car builders today. Measuring torque while the unit is stalled is the best way to gather accurate information. We have several converters in high horse power trucks, including our own Pro Street race truck, proving the our product's strength and reliability. Some manufacturers do not recommend using a stall test because it stresses the transmission, so if you use this procedure, do not do it for more than five seconds at a time. , vehicle) initially starts to move, as there will be a very large difference between pump and turbine speed. Dodge Charger stock torque converter stall speed test 2 - foot brake flash - Duration: 1:56. At full throttle, the brakes won't hold beyond 2300, so the actual stall is unknown. The big-power stuff, you get the benefit of a better-matched stall to the combination, but also a much, much stronger torque converter,” says Sehorn. The torque converter is 2400 stall, not sure if lock-up or not. Increased Stall Speed — A bad torque converter will take the transmission longer to engage the engine, resulting in higher than normal stall speeds. In addition to that, it also houses what is referred to as the TCC, or torque converter clutch. I don't know how accurate of a simulation it is, but it feels right, and is stable with every car I've tried it on in a variety of conditions, although it. So yes, a guy could pick up a touch of stall in a 6. ) the unit shifts 1-2-3-5-6 with torque converter clutch. TCI and Butler LS have joined together to bring high performance torque converters and transmissions for many LS and GM applications. A looser torque converter exerts less resistance on the engine. A properly working torque converter is something your car’s transmission needs to function. Dacco Torque Converters We will custom remanufacture your Dacco Torque Converter in 24 hrs, rebuild costs range from $250 - $400 Please take the time to look at our website so you can can see what we are about. Then click the Convert Me button. Its job is to redirect the fluid returning from the turbine before it hits the pump again. We will also explain the differences in each item showing how everything effects the stall in the torque converter. Read on for more details, test results. One common thread that we found during all of our conversations is that the manufacturers rely on their racer contingent to constantly test, test, test, and provide them with data both before and after the converter’s installation, in order to better analyze what’s happening with each of the particular torque converter combinations they. Generally, stall speed is limited to 1,500-2,000 rpm to prevent over-heating the transmission oil. transmission failure. The Drag Race Analyzer asks for Torque Converter Capacity as an input, but has a method to estimate the capacity from the torque curve you have entered into the program, and the converter’s stall RPM. The reason for this type of torque converter clutch problems is that the transmission fluid normally flows from the converter and directly through the transmission cooler. Your value gets instantly converted to all other units on the page. Fortunately, there are a number of signs to look for, and a few basic tests that will reveal if a faulty torque converter is at the heart of the vehicle’s problems. The idea is to place the system under stress to see what parts, if any, fail to operate properly. A typical torque converter has a torque multiplication ratio in a range of 1. I use 3rd gear so the engine does not over power the brakes during the test. 05 tc-211 2. Torque converters with a a high stall speed are normally used in which type of engines? Less powerful engines. We've worked on a lot of PTC torque converters, and I have yet to ever seen one that was ballooned. Torque converters can multiply torque at a 2:1 to 3:1 ratio. 3L Power Stroke Diesel - What OEM torque convertor stall speed? - Transmission shop ask if I want change stall speed on this 2000 F350. We custom build our converters one at a time to insure the level of performance and reliability that the racing and performance converter industry demands. A properly working torque converter is something your car's transmission needs to function. With that, if you take a car with a 2,500RPM stall converter and you hold your foot on the brake hard, and hit the gas at the same time, (as if you were going to power brake), the "general" RPM in which the tires will break loose is at "about" 2,500RPM. Which torque converter? This is a discussion on Which torque converter? within the Automatic Transmission forums, part of the Drivetrain category; I'm getting ready to order a ~3000rpm torque converter. I am looking at aftermarket converters and would like some input on stall speed. We make torque converters for all makes and models: on highway, off highway, as well as OE converters in small runs up to 20,000 a year. If this reading is below specifications, the torque converter's stator one-way clutch is slipping, or there is a restriction in the exhaust system. If an engine is basically stock, a high stall is a waste and can actually cause less performance. What is torque converter stall speed? According to Hughes Performance , torque converter stall speed is the maximum amount of engine rpm that can be achieved in an automatic transmission-equipped vehicle while the transmission is in a forward operating range without generating any driveshaft motion. The torque converter is a hydraulic coupling which takes the engine’s mechanical force and converts it into hydraulic pressure. One common thread that we found during all of our conversations is that the manufacturers rely on their racer contingent to constantly test, test, test, and provide them with data both before and after the converter's installation, in order to better analyze what's happening with each of the particular torque converter combinations they. Because these type of converters allow the engine to operate at higher speeds when they are making the most power. Actual stall speed will vary depending on the load that the torque converter is subjected to. For example, a '95 Beretta features a 1650 rpm stall converter as opposed to '99 Century converter with a stall of 2095 rpm. The stall phase actually lasts for a brief period when the load (e. 3L that started having shuddering issues. Our new torque converter is designed to stall at a speed to match Banks Power systems - precisely the point where the applicable truck or SUV diesel engine puts out maximum pulling power. 55 rear gear output and performance. You can also go to the universal conversion page. It could very well be something else. Bad clutches and/or valves for instance. TRUCK & SUV CAMSHAFT SPEC PAGE www. How a torque converter lockup works. Just tell us what your needs are and we will build a torque converter that will get the job done and hold up under the most extreme conditions. The hard parts of the torque converter that really affect the stall speed are the overall size of the converter, the pump blade angle, and the stator. It feels like driving over a cattle grate – a vibration that lasts for just a few seconds, and occurs in the 35-45 mph range. I am looking at aftermarket converters and would like some input on stall speed. TPI was founded in 1977. 5-inch tire, the roll out of the tire will give us 3. This is a conversion chart for newton meter (Metric). THE TRUTH ABOUT DYNAMOMETER READINGS AND HIGH STALL TORQUE CONVERTERS There is a misconception and a lot of misinformation about the poor vehicle performance numbers that are generated by testing a car with a high stall torque converter on a dynamometer. Choose from a variety of stall speeds to help you put maximum low-end power to the pavement. This valve limits converter release pressure. 1 LX and therefore a lower stall than the other stock converter. The size of the turbo or rather how quickly and easily it spools has a lot to do with it. I have a converter behind my 200 cid engine rated at 4500 for a large V-8. A higher stall speed improves off the line acceleration but reduces fuel economy. There is a way to test for this, but you must know your engine's and torque converter's speed specifications. We take Pro-Formance Transmissions' Dynamic 911/42-inch street/strip torque converters and put them to the test to answer some of your unanswered questions. That way the engien has to accelerate from peak torque to peak hp. The end result is a BLUEPRINTED* torque converter that will perform better than the original. The Powertrain Control Module (PCM) will set the P0741 diagnostic trouble code when it notices a difference between the rotational speed of the torque converter and the transmission input shaft that is greater than 200 revolutions per minute (RPM). Never Stall it for longer than 30 sec. Torque converter slippage is important during acceleration, but it becomes a liability once the vehicle reaches cruising speed. Torque converter hydraulic “lock-up” occurs when oil velocity in the converter is high enough to keep the impellor and turbine rotating at nearly the same speed.