Better watch driving without the proper TV cable adjustment! It will toast the trans in time. 700's rely heavily on the TV cable....

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Mike L.

1987 IROC Z 5.7 TPI A4 3.27 Borg-Warner four wheel disc
Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, 160* thermostat, MSD 6A, Accel 8mm Wires, bypassed TB coolant, 3" Flowmaster 3 chamber single outlet, custom adjustable cutout, 3" MAC mandrel intermediate, airfoil, ported plenum. !smog, Crane AFPR, Accel rail mounted FP gauge, Harlan shiftlite, 24lb. injectors, Hedman headers, a few others I forgot...??? FINALLY GOT PAINT!!

Check out my IROC webpage!

 

Denny, it sounds as if it is computer related. Although, I have to think, it seems that when you say "the more I drive it, the lower the shift point is" I.E. starts at 3000 then 2500 etc. It sounds like it could be related to the tranny temp. Things expanding, shift points get lower in the RPM band... I dunno...sounds kinda strange to me. I am having my own problems right now, though. I believe when I am done, I will be able to diagnose EVERY problem with these cars. Haha! It seems I run into everything you could think of with this dang car.

Keep us posted man, your shifting problem is akin to what I am experiencing now. (Can't get the car to shift under 6000 from 1st gear.)

Later
-Brad

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-Brad C?
355ci '89 Iroc-Z Red, T-tops, power everything, A4,New 10 bolt w/ 3.73's
Trans-Go shift kit Corvette Servo,Accel 8.8mm wires,Flowmaster 80 series ,K&N's, !MAF Screens, Hollowed out airboxes,homemade Subframes. Kieth Black pistons 10.3:1, Comp Cams 270H (.495/.502 218*/224* 110*LSA) & valve springs, SLP 1 3/4" headers, TCI 2400 stall, Dual Roller timing chain, 2 3/4" I-pipe.
Full street trim best run:14.799/mph:93/60': 2.02 (last year) New Times to come.
New times: 14.423 @ 96.11 mph with a 2.08 60' (On stock programming)

Pics of the Iroc

 

Denny
What did ya do with your N2O kit for the TPI setup.If ya still got it what ya want for it??? Let me know.
James

 

James,

I beat you to it and asked him that very same question at superfest... he's getting a plate and adapting it to the carb

 

Sell the kit!?! It's a typical LT1 kit fellas, go get a new one!! Or just get a used one with all of the extra toys on it used. And if yer really serious, get one of the upgraded kits that spray a double stage(300+)

Mike, i know for sure that you can toast the trans somehow and from what I've read i think it's adjusted right but i'm not 100% sure...still shifts nice just at 3K...

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Denny Villemure
1989 Camaro IROC-Z Convertible, 305 TPI, 2.73 Gear, Flowmaster 2 chamber. 15.60 on motor, 14.20 on a 75 shot from NX. Woo hoo!
www.denny.cz28.com

 

cool denny.

about the tranny shifting, its ALL hydraulic operation. the only thing the ecm is going for the trans is telling it to lockup the conv. at a certain point. the tv cable is your culprit for the shifting prob.s I have the same problems but only in the 2-3 shift. I bought a lever that bolts onto the holley throttle lever to adapt the 700r4 to the holley carb. its only $20 and helped alot. If you want, I will let you borrow it to try and see if it helps you. Its really simple to install. too bad I didnt know you were buying a carb. cause I couldhave sold you my 600 for $120. its pract. brand new. (man. choke though) I have an edelbrock proflow aircleaner and torkerII intake that clears the hood w/about 1" or so. its no good at the track cause it limits the air comeing in a little, but is fine for the street. I gained .10-.15 or so by removing it. a guy at my shop is installing a carb.d small block in a car for a friend and he showed me his air cleaner setup and Im going to try it on my car to see how it fits when I get the eng./tranny back in. (I ended up buying the compl. trans. from my friend BTW) should be done maye next week. still have to port and reassemble my new TFS heads.
email me if you want to stop by and see if this lever helps.
chris