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Re: Using Tac to drive 2 Throttle servos?
I've seen 4L60/65/70e transmissions with some heavy duty ratings...but I never liked the 1-2 shift/gearing. Unless you hit 2nd at well over 6k the motor falls on its face waiting for rpm's to come back up. That's why I went from a turbo 350 to a 200-4r...I just didn't spend enough for a good one.
I pretty much believe anything clinebarger has to say regarding gm automatics....but building a 500+hp toy to beat on at the track but now with efi and needing an "e" transmission... I felt I should go the 4L80/85e route.
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Kurt -
'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...
my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
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