Intake Manifold Modification... And more.
#1
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Intake Manifold Modification... And more.
So yeah, I did this. Should have been doing other things, but I couldn't resist.
Also, added two ports to the now larger plenum. One for the wastegate, one for BOV. Made a hardline to go to the wastegate. Will make one for the BOV when I do charge pipes.
Favorite pic.
Also, added two ports to the now larger plenum. One for the wastegate, one for BOV. Made a hardline to go to the wastegate. Will make one for the BOV when I do charge pipes.
Favorite pic.
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Basically I removed the "ceiling" above the butterfly valves so that when they open *gasp* air can pass through them. Before, they were VICS, a resonance chamber. Now it's another set of runners to feed the engine air. Should help top end power. Artie Partie dyno'd doing this on a turbo car and had good results.
#7
Basically I removed the "ceiling" above the butterfly valves so that when they open *gasp* air can pass through them. Before, they were VICS, a resonance chamber. Now it's another set of runners to feed the engine air. Should help top end power. Artie Partie dyno'd doing this on a turbo car and had good results.
No it doesn't have that.
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I've done a lot of headwork to my motor. So it flows more than most 99's. The stock intake manifold was holding it back. I hope this helps some. I still plan to build/buy a new one this summer.
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Or am I wrong here (yeah I can search but what's the fun in that)? Does the OEM ECU use that small vacuum chamber to keep the VICS active during WOT? If so, yah an active VICS "before" would make the comparison nicer.