magna buff
06-07-2007, 04:02 AM
came across this company
its a supplier of high stall automatic torque converters designed for drags and I quess quater miles or strret machines
never come across them before but an intresting modification
this is not an endorsement or recomendation
dominatorconverter.com.au so wont make it a link
more about them
keep in mind: torque converters generate about 95 percent of the heat inside an automatic transmission. Raising the stall speed increases friction and heat, so an auxiliary ATF cooler should also be installed to keep fluid temperatures under control.
For performance applications, a "high speed" torque converter may be just the thing. A high speed torque converter raises the stall speed at which the vehicle launches. In other words, it increases the engine speed which is necessary to lockup and launch the vehicle. The benefit of doing this is that it multiplies off the line torque for faster acceleration.
For optimum performance, the torque converter should reach its stall speed at the same time the engine hits its peak torque output. The heavier the vehicle, the more it will benefit from a higher stall speed. But there's a drawback.
Installing a torque converter with a high stall speed also means the engine is going to rev up a lot higher before the vehicle takes off. For everyday driving, this can be rather annoying as well as murder on fuel economy.
The market for performance torque converters, therefore, is usually broken down into different categories: street, combination street/strip, all-out drag racing, off-road, towing and mileage.
The typical street customer is looking for better off-the-line acceleration but doesn't want to sacrifice everyday driveability. The type of torque converter that's best for this type of application is probably a 10- or 11-inch medium-duty unit with a stall speed 200 to 500 rpm higher than stock.
The street/strip customer wants the best of both worlds, and may be willing to sacrifice some everyday driveability in order to blow the doors off the competition when things get serious. For an unblown small block V8 or a slightly modified big block V8, recommend a medium- to heavy-duty converter that offers stall speeds 800 to 1,200 rpm higher than stock. For a blown engine or a really healthy big block, a beefed-up converter with a stall speed 1,000 to 1,500 rpm higher than stock will provide the necessary punch.
For the serious drag racer, the sky's the limit. Race converters come in 8-, 9-, and 10-inch sizes, although 11-inch models are also available. A typical race converter is built to withstand high torque loads and stall speeds up to 5,000 rpm or higher. They're great on the strip, but impractical for everyday driving.
its a supplier of high stall automatic torque converters designed for drags and I quess quater miles or strret machines
never come across them before but an intresting modification
this is not an endorsement or recomendation
dominatorconverter.com.au so wont make it a link
more about them
keep in mind: torque converters generate about 95 percent of the heat inside an automatic transmission. Raising the stall speed increases friction and heat, so an auxiliary ATF cooler should also be installed to keep fluid temperatures under control.
For performance applications, a "high speed" torque converter may be just the thing. A high speed torque converter raises the stall speed at which the vehicle launches. In other words, it increases the engine speed which is necessary to lockup and launch the vehicle. The benefit of doing this is that it multiplies off the line torque for faster acceleration.
For optimum performance, the torque converter should reach its stall speed at the same time the engine hits its peak torque output. The heavier the vehicle, the more it will benefit from a higher stall speed. But there's a drawback.
Installing a torque converter with a high stall speed also means the engine is going to rev up a lot higher before the vehicle takes off. For everyday driving, this can be rather annoying as well as murder on fuel economy.
The market for performance torque converters, therefore, is usually broken down into different categories: street, combination street/strip, all-out drag racing, off-road, towing and mileage.
The typical street customer is looking for better off-the-line acceleration but doesn't want to sacrifice everyday driveability. The type of torque converter that's best for this type of application is probably a 10- or 11-inch medium-duty unit with a stall speed 200 to 500 rpm higher than stock.
The street/strip customer wants the best of both worlds, and may be willing to sacrifice some everyday driveability in order to blow the doors off the competition when things get serious. For an unblown small block V8 or a slightly modified big block V8, recommend a medium- to heavy-duty converter that offers stall speeds 800 to 1,200 rpm higher than stock. For a blown engine or a really healthy big block, a beefed-up converter with a stall speed 1,000 to 1,500 rpm higher than stock will provide the necessary punch.
For the serious drag racer, the sky's the limit. Race converters come in 8-, 9-, and 10-inch sizes, although 11-inch models are also available. A typical race converter is built to withstand high torque loads and stall speeds up to 5,000 rpm or higher. They're great on the strip, but impractical for everyday driving.