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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 10-07-2002, 03:23 PM   #1
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Join Date: Apr 2002
Location: Nebraska
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Car: 1991 Camaro z28
Engine: 350 Tpi
Transmission: 700r4 Auto

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is this camshaft too big/small?
for a 350....

duration at .050: 224 intake/234 exhaust
lift: .496 intake/.520 exhaust
lobe separation: 112

then with 1.6 roller rockers.....

thanks guys
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Old 10-07-2002, 03:26 PM   #2
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For Stock heads and LTR that cam is way to big.
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Old 10-07-2002, 04:17 PM   #3
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Way too much duration for even a modded TPI. Stay around 211/219* at .050...
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Old 10-07-2002, 06:45 PM   #4
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Car: 1991 Camaro z28
Engine: 350 Tpi
Transmission: 700r4 Auto

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how about

duration at .050: 211 intake/219 exhaust
lift: .530 intake/.560 exhaust
lobe separation: 112


thnx
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Old 10-08-2002, 10:53 AM   #5
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id get some good heads, a stealth ram, and the first cam. the first one looks like it could use a bit more intake lift though
Last edited by u r sofa king we tah did; 10-08-2002 at 10:56 AM.
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Old 10-08-2002, 11:21 AM   #6
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I run a similar cam to the first one but its with an LT1 intake and 200cc intake runners in mind (on a 355)

Also I have a higher stall.
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Old 10-08-2002, 11:21 AM
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Reload this Page is this camshaft too big/small?
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