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4l60e shift pressures

Posted: Sun Aug 19, 2012 10:40 pm
by Jervies
So playing with shift pressures ect iv been using the force motor x tps tables to alter the pressure and had really good results on my vt, but when i was playing with a vs tune on the weekend the extra pressures didnt really change anything. Iv noticed there is a max force motor pressure thing there set at 90. Now i understand what happens when there is to much pressure ect but was thinking with a vacume modulator they run full line pressure. What pressure would that be and how much could the maximum force motor pressure be changed?

Re: 4l60e shift pressures

Posted: Mon Aug 20, 2012 7:27 am
by The1
90psi ruffly relates to 300psi, what xdf you using, some of the old ones didn't have pressure tables setup right.

Re: 4l60e shift pressures

Posted: Mon Aug 20, 2012 7:40 am
by Jervies
Vs 1.22 All the values look right...

Re: 4l60e shift pressures

Posted: Mon Aug 20, 2012 9:56 am
by Jervies
With the maximum pressures iv got a chip that i bought ages ago thats got the pressures bumped up to 125 in the force motor maximum pressure scale. I ran that on a shif kitted bix with no dramas for 12months... Not to say i think that sort of pressures was good for it as it ended up braking the 3/4 retainer out of the main input drum but strangely this happened 1 month after i changed to a tune with the maximum force motor set as standard

Re: 4l60e shift pressures

Posted: Mon Aug 20, 2012 11:13 am
by Holden202T
it could be like the one i put in the torana, even with max settings was only just better than stock .... i think it was a flogged out tranny!