ok, with the new tbi on the 305, my tranny shifts earlier. is this just the linkage? did i not get distance right when hooking it up? does air flow etc... have anything to do with when the tranny shifts?

 

part or full throttle? I have seen transmissions shift earlier or later at WOT with changes in other mods but they should remain the same at part throttle because that is regulated by the throttle valve which as you stated could be due to the linkage being out of adjustment. How early is early? it may not be enough to worry about, Kyle

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Kyle Osterholt
Okarche, Oklahoma
ASE Master Certified
86 T/A 383 TPI
89 TTA #1002 T-top/Leather
89 TTA #1358 Hardtop/Leather
80 T/A Pace Car
73 Opel GT

 

Early, umm, 1500 rpm, at part throttle, o no, shes staying WIDE open until about 4850.
Its just that i drive the car everyday, and it shifts right before im usually used to accelerating, say out of a turn. It will shift mid turn instead of staying in first thru it and then shifting after im out of it. I used to have the option of giving it gas while in a turn and keeping it in first, taking off like a bat out of hell. Now it shifts to second and i accelerate under low rpms in second. great throaty exhaust tone, but not good acceleration. I think that should explain the problem. Im gone adjust the tranny cable, and see how it plays, but with it already shifting wot, high, im kind of afraid. We'll See

 

I'd try re-setting the TV cable first of all. The tv cable has enough adjustment room that it should re-calibrate just fine.

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just an update, i adjusted my custom throttle linkage bracket so that it pulled the tranny cable out fully at wot. Thanks for help, i thought that i may have messed with something computer controlled. obviously not.

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ENGINE SPECS:
305 TBI
Open Element
K&N 14x3
Hypertech Stage I
160 Deg. Thermostat
454 GM TBI

STEREO SPECS:
JVC Kalmeleon kdlx3
Infinity Kappa 2way 6x9's
PPI 4x6 Coaxials
PPI PC2400 AMP @ 2ohm
DEI Studio 12" 4ohm DVC
Custom Box,
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