Need +500rpm from 4L60
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Car: 93 Caprice 9C1
Engine: L05
Transmission: 4L60
Axle/Gears: 3.42
Need +500rpm from 4L60
I have a 93 Caprice 9C1 with the L05 TBI 350 and it currently upshifts 1-2 and 2-3 between 4600 and 4800rpm. These are pretty good shift points. WOT 3-4 is lower, around 4200 I think (~85mph with a 3.42 rear).
Anyway, I am about to buy an LT1 cam and I think I should adjust the tranny to shift about 500rpm higher than it is now. My hunch is that the TV cable will not make THAT much of a difference, and so I will need to attack the governor. Can anybody confirm this? How should I go about modifying the governor? Is there a factory replacement that shifts in the 5000-5200rpm range?
Otherwise, I can always manually upshift when I want to totally tap out the engine...
Thanks.
Kevin Moore
Anyway, I am about to buy an LT1 cam and I think I should adjust the tranny to shift about 500rpm higher than it is now. My hunch is that the TV cable will not make THAT much of a difference, and so I will need to attack the governor. Can anybody confirm this? How should I go about modifying the governor? Is there a factory replacement that shifts in the 5000-5200rpm range?
Otherwise, I can always manually upshift when I want to totally tap out the engine...
Thanks.
Kevin Moore
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Car: 93 Caprice 9C1
Engine: L05
Transmission: 4L60
Axle/Gears: 3.42
Those shift points seem a little high...I might just manual shift it. I can also dyno it and see if I am losing performance by upshifting too early.
Also, my TV cable is current adjusted to spec (i.e. the tighten it then floor the gas approach).
Kevin
Also, my TV cable is current adjusted to spec (i.e. the tighten it then floor the gas approach).
Kevin
<font face="Verdana, Arial" size="2">Originally posted by Pro Built Automatics:
Try a lighter weight governor (V-6) this should get you the 5,400-5,600 rpm WOT shift points. Set the TV cable up as transfixleo says, that is the only way to get it right. </font>
Try a lighter weight governor (V-6) this should get you the 5,400-5,600 rpm WOT shift points. Set the TV cable up as transfixleo says, that is the only way to get it right. </font>
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