hack_1jr

ive asked this question before but i have a 2000 camaro sswith an auto. if i put the shifter into drive and hammer it the car hits the rev limiter from 2nd to 3rd even when we dropped the shift points down but if i start the shifter in overdrive and hammer on it it shifts fine. Any help with this problem would be great thanks

performabuilt

iTrader: (25)

The difference is the overun clutch is coming on to in the d position taking fluild away from the 3-4 clutch .

hack_1jr

so trans needs to be rebuilt???

performabuilt

iTrader: (25)

Well it may last a while. Alot of stock trans have this problem. Just dont let it do a auto shift from 2-3 in D and think about getting a built unit if your planning on racing around. Rebuilt is not the answer.

hack_1jr

if i start off in od during a race does it hurt the performance at all???

performabuilt

iTrader: (25)

nope 1st is first

hack_1jr

thanks for all the help you by far have been the best help.

FLT

iTrader: (1)

Not to step on anybodies toe's here. I have tested a lot of FLT units and do not see the pressure loss in the 3rd position of the shifter with the overruns coming on when it hits 3rd gear. I have heard this explanation over the years but do not see it on the dyno gauges with my units. I wounder if this is caused by shops rebuilding units and reusing the overrun piston or in a used transmissions case, is it that the seal is just bad. I really do not have the answer because I can not see it with my units nor do I test used transmissions. Sorry not to be of more help. Vince

performabuilt

iTrader: (25)

We have not had the problem with our units either but I have heard many many people complain about it with the stock unit, Personally I think its the excessive 3-4 clutch clearance that the stock unit and some rebuilt units have. With the larger clearance there would be a greater fluid requirement , I see on various boards several people who have done the test and noted the drop then a rise as far as i know these were stock units,But like vince I have not personally tested stock units. But it does seem to be a logical reason for the occurance.