1988 IROC-Z
L98 350
700R4 Auto
2.77 Posi

Mods
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Jasper 355 (300hp / 363lb) TPI, Headers, Chip, K&Ns, Flowmaster, 160 Thermo, MSD Wires, RapidFire Plugs, KYB Shocks/Struts

Best 1/8 Mile = 9.1

Any idea on what my 1/4 would be? Any chance I could see a 13.5 if I added a shift kit, stall converter, and 3.70 gears?

-Thanks

 

i have similar mods and i ran a 14.1 with a 9.1 1/8. i also have 2.77's with all the addons you mentioned, youd be about where i am, 13.8-13.9.

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1988 IROC-Z L98
License Plate: STG KLR 1
Engine Mods:
Edlebrock TES Headers, Hypertech Chip, Flowmaster Muffler, Intake Airfoil, Removed MAF Screens, MSD-6A, MSD Blaster 2 GM Coil, bored .030 over.
Nitrous System:
NOS Plate Kit, 100hp shot.
Suspension Mods:
Lakewood Traction Action Lift Bars, Hal Rear Shocks
Trans Mods:
2,500 stall converter, Redline clutches,Heavy Duty Steels, Trans-Go reprograming kit , Heavy Duty 2-4 band, Corvette Servo, B&M Mega Shifter
ET: 13.833@99.30 N/A

"If you can put it on your car, its fair" Quote By Guido
Foundering Member of the Illinois Overkill Crew (IOC)
www.mfba.org

 

I'd bet with the right TC and those gears you'd drop a full second off your time if not a little more.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

 

DRAG RACING board

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89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI

 

General rule is multiply your 1/8th time by 1.55 or so. Generally a 9.1 should net you a low low 14/14.0

With a TC and gears you'll easily run on into the 13s assuming you can still launch. What was the 60 foot time you got on the 9.1 run? You may already have some room for improvement there...

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Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray

[This message has been edited by Ray87Z (edited September 11, 2001).]

 

Ran a 9.38 at 71.6mph then 14.837 at 92.4mph in the 1/4mile tonight.

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1990 formula 350 tpi dual cat auto 9 bolt posi 3.27 ratio