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Jan 6, 2006 | 11:26 AM

#21

Big-DEN

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Joined: Oct 2004

Posts: 329

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I will be debated, but the LS7 exhuast ports while not putting out "big" numbers are just fine. I dont' think that much of an exhaust bias is needed.

It has been proven time and time again, especially on NA apps that the intake side is more critical for power production.

My guess is if someone made a camshaft with less exhaust duration and the same on the intake side that there would be almost no top end loss with bottom end gains.l

Jan 6, 2006 | 01:31 PM

#22

mnc2886

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Joined: Jun 2004

Posts: 355

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From: Houston,TX

Quote:

Originally Posted by Big-DEN

I wouldn't say that is true. My neighbor grew up with the people that started tnt motorsports and when I bullshitted with them, they where making more power with bigger exahust ports and valves rather than making the intake side bigger. Maybe that's the way the viper is, but I have to say intake and exhaust are equally important. If you noticed, LGM's vette was low on torque for awhile. That might have spawned from not enough exhaust. BTW, TNT were using 2.04 intake and 1.65 exhaust valves I believe. Or maybe it was a 2.02. Don't know for sure though.