Why do I need a stall converter?
The reason a stall converter works is simple; an engine at 1,200 RPM is only making about 80 or so horsepower (on average), but at 2,500 RPM it could be making 150 to 200 HP, and obviously trying to get a car moving using 150-200 HP is going to be much easier than one trying to launch at 80 HP or so.
Is a stall converter good?
However, a stall converter will affect your daily driving by lowering your fuel economy substantially. This makes it a poor option if you’re using the car for commuting. The reason that a stall converter boosts your acceleration is that it doesn’t allow the tires to break loose until you reach a higher RPM.
What stall speed converter do I need?
When choosing the stall speed that is right for your application, a rule of thumb is that the advertised stall speed will need to be at least 500 rpm higher than the beginning of the camshaft’s powerband. All aftermarket camshafts are delivered with a recommended RPM operating range.
What happens if stall speed is too low?
Converter stall speed must be high enough to put the engine into the torque range where it can most efficiently launch the car. If converter stall speed is too low, the car will be lazy leaving the line; if too high, there’ll be excessive high-gear slippage—either case adds time to your e.t.
What is the difference between a torque converter and a stall converter?
A torque converter has three stages of operation: stall, acceleration, and coupling. Stall is when the transmission is in gear, but the brakes prevent the car from moving. At stall, the torque converter can produce maximum torque multiplication, called stall ratio, if sufficient input power is applied.
What does a higher stall converter do?
A higher stall torque converter will let your car accelerate better because the car will be taking off at the rpm range where it is making the most power.
What happens if stall converter is too high?
What stall converter do I need for towing?
If your motor generates more power in the lower RPM range, you’ll want to select a converter that stalls at the beginning of that RPM range. If you use your vehicle for towing, make sure your torque is around 1800 RPMs.
Is a low stall torque converter better for towing?
A truck towing a trailer through a hilly area where it’s impossible to stay in one gear is a perfect example of where a low-stall converter would be ideally suited.
How do you calculate stall speed?
Stall speed increase for higher weight = old speed+1/2 % increase in weight e.g. wt inc.
What is the purpose of a stall converter?
‘Stall’ simply refers to mashing the brake and gas simultaneously, or getting on the trans brake. This enables the engine to rev around the stall RPM of the converter installed prior to breaking tires loose.
What does stall speed mean torque converter?
The stall speed is the RPM at which your engine will max at RPM with the transmission in a drive gear and the brakes engaged. For example, if you were to hold your foot on the brake and gas at the same time – with the transmission in drive – and the engine achieves 1,800 RPM, that is the stall speed of the torque converter.
What does a high stall converter do?
A high stall converter can easily make enough heat to fry a transmission if you hold it on the line long enough at full RPM if the stall speed is above 3,500 RPM or so, so a good tranny cooler is essential when running ANY type of high stall converter. Most street performance cars running your typical “performance” cam should be running a stall