Anyone know what the stall speed is on the factory torque converter that comes with the Torqueflite a518/46re?
the torque converter, i.e. rpm's. i think its 2500 rpm
You can determine stall speed on any converter by holding the brake hard, setting trans in D and momentarily flooring the gas pedal. Watch the tachometer to see where it peaks. Don't hold too long as this strains the heck out of the drive train and be sure you have lots of room in front of you in case the brakes don't hold. We can tell the tune of our race car engines by doing this as the stall speed will change with weather and tune up. It works but please be careful!
brake pointing doesnt accurately work with beefier brakes like mine, so i tried flash pointing. appears to be at 250
Did you mean 2500, Trevor? Sounds about right. BTW, beefyness of brakes doesn't make any difference. You only need to hold the truck at a standstill to get accurate stall. Beefier the better, actually!
whenever i read about brake point stalling, it always just said when the rpm's overcame your brakes, but its really inaccurate sounding to me. i am just gonna assume it is when i order my new camshaft
Brake point stalling will give you the dead nuts accurate stall of your converter. For example, the one in my Cuda is set up for drag racing and was custom built to the engine specs. Greg Slack, the builder, asked what cam, intake, valve size, compression ratio, bore, stroke and gear I planned into the combination. He decided 4000 stall would be best. When I put the trans in I tested by putting the trans in high gear (it has a manual valve body) and floored the gas pedal. 3980rpm on the tach memory confirmed Greg knows his stuff! Now, this engine is capable of turning over 6000 but no matter what, the converter will only allow it 3900-4000 depending on temperature, weather and tune up. That is true stall. Once the vehicle starts moving, all bets are off. Now, some guys have a trans brake which puts the trans in both low an reverse. Car definately ain't moving with that applied! Still hard footbrake will give same results. Hope this makes things a little clearer!
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