Okay, my last run at the end of summer I ran a 15.5 @ 89 MPH, up here in Colorado, that translates to a 14.3 @ 97 MPH down at sea level.

By the next time I go to the track, I will have replaced my 2.77 rear end with a 10 bolt holding 3.42s. I will have also added an Accel Intake base. Also, since my last run I have installed the new LT4 HOT Cam, Comp Cams double roller timing chain, .029 head gaskets, all new gaskets everywhere, new 02 Sensor, ported plenum, and a high flow catalytic converter. So what do you guys think? I am hoping for at least mid 14s up here, what do you think?

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

Soon to Come: 7.625" 10 Bolt with 3.42s and Accel TPI Intake Base

 

Come on guys.....

 

I will try to answer your question,but with a combo like yours that has so many mixed and matched parts the best person able to answer it is YOU!I mean how does the car feel?You added a real agressive cam for a TPI without a loose torque converter or doing any headwork to take advantage of the extra flow,and I take it you are putting on just an Accell base and keeping the stock T-body and runners on I dont know from not being able to drive your car,but it seems like that combo is working against itself.You have a cam that doesnt really come alive till 3000+rpm and are probably losing low end torque meanwhile the intake and heads arent going to let it do $hit.You have to understand the TPI is a system,adding one part without another wont neccesarily do anything and may even be worse.Get a looser 26-2800 TC,have a 3-angle valve job and CNC port work done to your heads,(or get new castings)step up to larger 1 3/4 headers,add atleast ported semisiamese runners,and 52mm T-body.You might as well put on new 24lb injectors with the manifold,and have a custom PROM made to take advantage of everything.That could put you solidly in the mid 12's with traction.

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1990 Trans Am GTA,Black/Black Leather,350,auto 3.23,Dual Cats,
SLP Package,SLP Torque Converter/Shift Kit,Fastchip,GSC's
G-tech 0-60 5.1 1/4mile 13.6@104
member www.transamgta.com
Previous Thirdgen
1986 Camaro IROC-Z

[This message has been edited by black5.7GTA (edited March 19, 2001).]

 

I agree with the mods GTA suggested but for your L98 and the way it is modded I'll say high 13's corrected for elevation, or maybe better!!

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

I only have the money to buy a few parts at a time. I don't have the money to go buy AFR 195s along with a Mini Ram to work with my new cam. I know that cam is too big for the motor now, but with the intake parts I am adding and the new rear end at least I am getting somewhere. I am not going to spend any money on my 700R4 as I will be installing a ROD tranney down the road.

------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

Soon to Come: 7.625" 10 Bolt with 3.42s and Accel TPI Intake Base