Those with LB9 and bigger cams
#1
Those with LB9 and bigger cams
I installed the Powermax 2032 cam- the largest the computer remains happy with or thereabouts.
The car is running a little lean now. I am going to fit the Holley AFPR and get the timing advanced.
Question is what should I bump the PSI up by?
Also what base timing- 8/10?
Anyone with real world results? Love to hear them
The car is running a little lean now. I am going to fit the Holley AFPR and get the timing advanced.
Question is what should I bump the PSI up by?
Also what base timing- 8/10?
Anyone with real world results? Love to hear them
Last edited by ZZ42Fast; 04-14-2014 at 02:36 PM.
#2
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Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: Those with LB9 and bigger cams
Last year I installed a Comp 08-302-8 (similar to to the Crane 2032) in a 1988 LB9 with a 5 speed and 3.45 axle. Stock tune. Also put in a Holley adjustable regulator, and it runs pretty good at the stock spec but I plan on playing around with it some more because it's also running a little lean.
I've played around with the base timing, and it runs best at 6 degrees advanced and 91 octane. Plugs are R43TS.
I've played around with the base timing, and it runs best at 6 degrees advanced and 91 octane. Plugs are R43TS.
#3
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Re: Those with LB9 and bigger cams
Use 93 oct if you have it available-
#5
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Car: 85 Silver Iroc, 79 Camaro
Engine: LB9, 500+ ci BBC
Transmission: 700R4, th400 with brake
Axle/Gears: 3.42, hand made 40 spline 9"
Re: Those with LB9 and bigger cams
Send Tuned Performance a PM. He'll guide you in the right direction and could even give your ECM a tune if needed.
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#8
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Car: 85 Silver Iroc, 79 Camaro
Engine: LB9, 500+ ci BBC
Transmission: 700R4, th400 with brake
Axle/Gears: 3.42, hand made 40 spline 9"
Re: Those with LB9 and bigger cams
Tuned has helped me out greatly. I just have to do the ECM swap in my 85 Iroc now.
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