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Porting the LSX manifold

Old May 10, 2004 | 08:50 AM
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needmoremoney's Avatar
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From: W.P.B
Default Porting the LSX manifold

I ported my LSX to the "WITNESS" marks. In some areas the intake manifold ports are a little off, but for the most part, its really good. BIG difference from the small LS6 ports, to my new LSX ports, But thats where my question comes in: With such big ports now on my intake manifold, will I benifit any H.P/T.Q. over the LS6, or am I going to lose power? The car is a H/C car w/ nitrous. Last Question: HOw the hell do I keep the MAP sensor tight in the back. The little rubber grommet is kinda loose. I bet when I spray nitrous, that the MAP sensor will pop out from the pressure.
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Old May 10, 2004 | 09:37 AM
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RTV the MAP sensor.

if you ported that intake larger than the ports on your heads you will create reversion/turbulance and will actually hurt performance. did you port match or just start porting?
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Old May 10, 2004 | 11:31 AM
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Originally Posted by SilverGhost
RTV the MAP sensor.

if you ported that intake larger than the ports on your heads you will create reversion/turbulance and will actually hurt performance. did you port match or just start porting?
I did port match, but some how, my caliper moved in size from my house to my friends house, and now this.....
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