I have the LB9 305 TPI with 230 horse. I want to get my car running in the twelves and wondered what your thoughts are. I would like to build up the 305 just to have something different, but if it can't be done, I would swap the engine. I did just read about a stroker kit in Super Chevy's Camaro issue that bumped displacement to 335, but it didn't list performance gains. Just looking for opinions and also what you think it would cost.

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92 1LE 25th Anniversary Heritage Package
305 5-speed
Hooker Headers, SLP exhuast, K&N filter

 

start with a SCer

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1992 Camaro RS 3.1L
T5 Manual 5 speed
Cold/RAM air intake
Z-28 Exhaust
8.5mm MSD Ignition wires
TB Coolant bypass

Soon to be a 3.8L turbo RS

AIM screen name - Stopsign696

Kills:

95 (****) Probe GT,94 Mustang GT,91 CRX (dont ask me why he raced me),2nd Gen Z28 (350) haha to you V8 guys!,1992 RS 305 TBI (good race),First Gen Integra, Old Escort LX
More to come

 

I am in the same shoes you are. (I have a 1LE too!).

My car will be in the 12s very soon. You can look at my mods to get an idea..but a 9# ATI intercooled Procharger is what's going to make it happen.

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91 Formula
305 TPI 5speed
1LE/G92/WS6
Custom cold air intake w/K&N, SLP airfoil, ported plenum, TB coolant bypass,Crane AFPR (47psi),94 octane,Crane Extruded Alum. 1.6 full roller rockers, Timing set from 4*BTDC to 10*BTDC,MSD coil,MSD6AL, Holley 9mm Annihilator Laser shot 50 wires, Ac Delco cap,rotor and plugs, Bosch O2sensor, SLP 1 5/8 headers,SLP catback,3:73s,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.
Street legal with stock throttle body, runners,intake manifold,cam, and heads. Coming next..9# Procharger!

 

Thanks, and how much have you spent on your mods so far?

 

To run high 12's you will need to be making around 300 rwhp and 320+ rwtq. You are also going to need traction. I would suggest Nitto's ($350), full exhaust headers to tailpipe ($900), ignition upgrade like MSD ($100), AS TPI runners ($400), ported L98 aluminum heads ($600) and the proper cam ($300). The stock throttle body is the same size as the LT1 TB. Many LT1's run high 12's with the stock TB. You will want to port/port match the plenum, runners and heads. You will also need some computer tuning. Another more powerful option is Vortec heads when/if the TPI intake is released. I think Vortec's are in my Formula's future. Oh yeah, I also have a 1LE


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87 Formula 350 14.61@94.07 before 2OTL, TCI stall, Nitto's, tubular LCA's & panhard
98 Z28 1LE 13.15@107.59
1LE Owners Association


[This message has been edited by 98_1LE (edited January 03, 2001).]