couple ? with trans
couple ? with trans i have a pbuilt level 2 4l60 with there 2300 2500 stall i was woundering is it okay to shift this manualy all the time and if so what to shift it at thankss
Launching!
Joined: Oct 2008
Posts: 294
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From: Bowling Green, KY
The only problem that might come up is when the trans is in manual 1st, the fluid ALSO has to fill the overrun and lo/reverse circuits. Then when you manually shift to 2nd there can be an ever so slight delay in shifting to 2nd. As you are aware of, any delay in shifting results in friction, friction equals heat, heat equals bad. IMO the less circuits the fluid has to fill the better. Now here is the catch22, the overrun and lo/reverse add some support to other internals. Great for burnouts. Somtimes I leave it in OD, other times I like to manually shift it. Just have fun with it and shift under the limiter....ok ok peg the sucker. 
Yes it fine to shift manually, However not sure why you would want to? You generally get better results if you let the PCM do the shifting with the proper tune.
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Last edited by performabuilt; Jun 24, 2009 at 08:41 PM.
LOL thats funny! 
I do not believe that you will get that unit to shift manually when you want it to. It would be best to get it tuned to have auto shifts for the optimum shift times and forget about the manual shifts. Not trying to be a $^#& but lets face it, the signal from the computer is much faster and accurate than you are. Vince
I do not believe that you will get that unit to shift manually when you want it to. It would be best to get it tuned to have auto shifts for the optimum shift times and forget about the manual shifts. Not trying to be a $^#& but lets face it, the signal from the computer is much faster and accurate than you are. Vince
