delete thanks

 

If i'm reading you right here, you're saying it is shifting 2-3 at a 'normal' shift point if you floor it, but is otherwise shifting a little shorter than you want at part throttle?

Well, yeah you could play with the governor to change that, but you'll also effect every other shift point as well in the process. Tuning a governor is a completely trial and error process. Granted i can swap governors in under 5 minutes including carrying the jack out to the car. Still is it worth all that time to fix a part throttle shift point. Dunno, i sure wouldn't bother over something that minor. Most people just floor it if they're trying to get more performance out of their car

 

yeah but you really got to get on it to get it from 3 to 2, it sin 3 before 25 mph even... and thats with 3.08 rear and short tires, so,,,
something's funky in it somewhere..

yeah modifying gov wil affect alll shift points, that gear wil be extremely short, might as well just remove it altogether, cant even count ot 2 before its done shifter into second already, thats even faster than in a 3.73 third gen., this 700r4 is in an 83 caprice btw the thing shifts way too soon even with cable pulled all way out by the throttle, so,,, but man when you are on big road and romp on it it make throaty vroooooooom acceleration exhaust ! that 305 working its ***** off! rear crappy gears kill the acceleration though.,., not same as doing that in an F-body 3.23-3.73 car

i take it that adjusting TV cable also affects all shift point and not just one or two of them? right ?

i dont think i can win in this stuation cuz apparently theres no way to change the 2-3 shift point without affecting others.,. the shift is just way too soon, totally misses the powerband of the engine,, 1-2 shift doesnt though !

thanks

 

You sure you're not experiencing the TCC locking up. That usually will happen around 25mph at light-mid throttle but not itll later if you're into it. This will pull the rpms down and make it feel kinda boggy.

If thats the case there is nothing you can do about it since it is controlled by the computer. Well, except for disabling it and using a manual switch to lock the TCC full time, but that is a poor idea both for gas mileage and trans longevity.

If not, the governor is your only answer. But IMO if the trans otherwise shifts how you want it, you're only opening pandora's box by messing with it. 2-3 part throttle upshift is pretty minor IMO. I actually have a TBI governor that short shifts everything for my car that i run most of the time just because i don't need or want to be revving my engine much during normal driving.

 

it may be minor but it sure hurts acceleration performance with this axle ratio..

and no these are definitely shifts and not lockup.
i thought lockup does not occur until 4th gear anyways?? i though it was unsafe for coverter to be locked in unless was in final range gear ?


i fixed it good enough for now by making cable a bit more tighhter, it now gets out of first at 20 mph and out of 3 at 40 mph, which is TONS better than how it was previously, may be a hair too much though.


now, is a high rpm shift like this good or bad on clutch packs than how it was before? i assume that higher rpm shifts cause longer period of time that the clutch discs are slipping, or does it do opposite and make them grab quicker when shifting ?


thanks

 

This is where i don't follow you. Most of us just squeeze the gas a little harder if we need more acceleration.

But if you found that much leeway in your shift points by playing with the TV cable then it was not set right the first time. A properly set TV cable and one a click or 2 loose aren't going to be that radically different from each other. You had to be pretty loose to make it shift dramatically lower. And if it was that loose then yes it could shift insanely low. And maybe thats why i wasn't following you, because i was assuming from your description that everything else was normal and set right.

 

well car isnt one thats been messed with in the past, originl drivetrain and such, even all smog and a/c is intact. after pulling cable a little tighter than i think should be needed to be done to ge tit to shift later, it does shift later and firmer now with no so much throttle. the problem with how it was before was that it was shifting into gear wayyyyy too soon especially for only having 3.08 gears. now instead of hitting 2nd after only 2 or less seconds of normal acceleration from a dead stop, it now will go to 20mph before hitting 2nd and thne wiull go to 40 mph before hitting 3rd, which is TONS better than it was before, alot better acceleration with alot less pedal

i like it alot better now.
hope its ok for it to wind up this high before shifting, its not slow shift action, its quick and firm no slip at all, it was shifting at so low of an RPM before that you could hardly feel/hear the shift, but ow its very pronounced shift, very positive feel.

thanks

 

It's physically impossible to set the TV cable too tight. If you set it to tight, it will just ratchet itself out. Well unless the adjusting mechanism is fubar.
If nobody had touched the car in a long time, and resetting the TV cable fixed the problem then i think it's clear that the TV cable was no set right before.

 

good point there

mines fubar, it wont pull forward, have to depress button just like when are pulling it back.

maybe i shoudl spray it with penetrating oil,.. heh
thanks

 

The adjusting mechanism failure is pretty common IIRC. Off the top of my head i don't know what the best solution is, might try searching to see if cleaning will help, or if you need to replace it to work, or what...

 

I would change the govenor. My 91 was terrible for lugging itself around had 2:73 gears so you can immagine how bad it was. Even when I kept it out of overdrive it would go into third lockup and lug. Often it would not down shift when I wanted either. The detent self adjusts so that is a waste of time.

 

well i have problem that it wont ratchet out, it did on the first 84 Z28 and does on the one i have now, but wont on this 83 caprice one. i can move cable by depressing the button, but if i pull cable back then open throttle all the way then the throttle will stop when cable is pulled all way out and cable will not click out further,

harder than hell to set it,.. i tried to get it to do it a few times now and it wont and now shifts are way too soon again,.. cant win, it drops into third at about 25 again, way too sooon...




thanks

 

yeah cable self adjusts anyways once you have had throttle at WOT,.., and ive set it to be pulled all way out at WOT and it still does way too soon shift and lugs and lugs, rear axle in this is 3.08 or 2.73- unsure of which yet since is no SPID label in 83 cars,

IMO i think they never should have put anything except 3.42 or 3.73 with 700r4 cars... 700r4 never seem to shift right with crappy highway rear axle ratios,, always way too soon it seems...

ill have to do some governer mods it looks like. take a little weight off of one weight and see what that does, i need second to come in around 20-25mph and third to come in around 40-45mph, that would be perfect.. 4th can come in whenever..

if car was 3.42 or 3.73 then it would be whole other story, it would be fine how it is now,. the 84 Z28 with 3.73 came into 4th at about 40 or 45mph, sounds soon but really isnt with short tires and low gear rear,.