Ok, I've got a 91 GTA with the usual mods. I'm noticing lately that the performance is great when the car is cold, but once it warms up, the power decreases slightly. What is causing this? Also, lately, there is a surge of performance at 2600RPM's all the way to 5100RPM. Is my cam getting worn??? My car has 118K on the odo. No smoke, and gets 17-19mpg in the city. Help me out guys, please!!!

[This message has been edited by Fast91GTA (edited July 31, 2000).]

 

Here's my list of usual mods. Anyone have a TPS enhancer?? Have you noticed a difference?

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91 GTA L-98 with: K&N w/modified housing, AFPR, airfoil, ported plenum, Bosch plat+4's, Taylor 8mm wires, relocated ATS, MSD-6A, 3" Flowmaster cat-back, Corvette servo, shift kit, HD bands/clutches, Aluminum DS (factory), 180* stat, 3.23 gears. 13.9 @ 101.5 w/2.0 60ft. times.

 

Anybody, please help.

 

thats normal, get a cooler Tstat, replace your airdam if its scuffed off, rig a cold air intake, etc.

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Drew
predatorman@hotmail.com
My Website
87 Iroc
91 Formula 14.3 @ 98mph
91 RS Convertible
92 S10
ICON Motorsports

 

It is normal, when you are cold you are getting more timing advance to help warm-up, hence more oomph...

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1989 Formula 350, 10.5:1 383", TFS heads, Comp Cams blower grind, TPIS Mini-Ram, BBK 58mm throttle body, Vortech S-trim 15 psi, DFI, 42# injectors, S/X fuel system, MSD ignition, SLP 1.75" headers, Flowmaster exhaust, MW Racehouse 700R4, Currie 9" w/3.50 gears, Jeg's sfc's, Jeg's lca's, S&W 8-point rollbar, lookin' stock street racer...

Best ET: 10.796 @ 125.8 on 16" Sportsmans...