At 11:32 PM 11/21/00 EST, you wrote:
>What exactly is the stall speed of a converter...
As often happens in the auto., there are different meanings given
to stall speed of a converter. I generally keep in mind that there
are 3 meanings and try to find out which one is being used in any
discussion or article.
Stall speed is very difficult to determine unless your car is equipped
with a Transbrake to lock your drive train. Testing stall speed by
holding the wheel brakes and running the engine against the locked
brakes will usually result in wheel rotation before true stall speed is
reached. The engine simply overpowers the ability of the brakes to
hold the car. When rotation starts you are no longer at stall.
Stall speed is the peak rpm reached with the Transbrake.
Flash speed is the observed peak rpm that the engine reaches just as you
launch at WOT from a standstill without any brakes applied. Because this
method of measurement is less accurate than that with a Transbrake, flash
stall is usually less (200-300 rpm) than the stall speed.
Brake stall (one used at the track) is determined by locking wheel brakes
and running the engine against the locked breaks. This is not really
a true stall but refers to the peak rpm when the wheel brakes can no
longer hold the vehicle at a standstill.
Sounds like a hanging chad vs a pregnant chad vs a dimpled chad :-)
Bob. Burlington, Ont., Canada.
'97 Dakota CC, 5.2L, 4x2, 3.92 SG, auto., 4265 lb.
Dyno: 231.2 rwhp 340.0 lb-ft rw torque
PB: 14.737 @ 91.75 9.364 @ 72.95
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