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TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.

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Old 10-18-2009, 03:38 AM   #1
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cam made me look stupid!
want to put a cam in my 89 lb9 so i went to one and thay starting asking me questions that i couldnt answer!! help me what kind of cam go in this motor? i know its hyd roller but is it flat tap? computer controled?
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Old 10-18-2009, 04:13 AM   #2
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Re: cam made me look stupid!
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Originally Posted by phoenixxx602 View Post
want to put a cam in my 89 lb9 so i went to one and thay starting asking me questions that i couldnt answer!! help me what kind of cam go in this motor? i know its hyd roller but is it flat tap? computer controled?
Yes, its a hydraulic roller and its computer controlled
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Old 10-18-2009, 09:04 AM   #3
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Re: cam made me look stupid!
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i know its hyd roller but is it flat tap? computer controled?
Roller is one type of lifter and flat tappet is another different type .
What they mean buy "computer controlled" is you can only use certain specification cams in cars with engine computers without major changes to the computer tuning.
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Old 10-18-2009, 11:11 AM   #4
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Re: cam made me look stupid!
Is your cam bad? The lb9 tbi 305 has a very restrictive set of heads and intake. Going more radical with the cam is not that much of an improvement and can sure make a mess of the computer engine control deal. Have you done the common bolts ons? Headers, exhaust, maybe improve the rear gearing?
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Old 10-18-2009, 01:25 PM   #5
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Re: cam made me look stupid!
yea its got the headers,exhust,... so y does the computer controled cam 150bux more?? or are thay just ripping me off?
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Old 10-18-2009, 01:27 PM   #6
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Re: cam made me look stupid!
a hydraulic roller cam regardless if its computer controlled or not should cost the same.
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