Dyno testing: PPI & Mil.Spec ported parts!
#19
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Kracka can you pm me what cobb charged for the labor to do the swap? I'm looking at another major overhaul for my car (while its still in cobbs hands lol) and these are sorta on the list
#22
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Since your car will be at Cobb anyways, might be best to let them do it. You'll have to take it in for a retune after the parts are on so it might be worth your time/money to just have them do it while they're in there.
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I do also wish you'd done a test that didn't involve the EM as well. Most ppl make big gains from ported exhaust manifolds, and I've seen hit or miss on the IM/TB. Did you all happen to check gains w/o the exhaust?
#26
Here's the best I can offer you, before/after just the exhaust manifold, but no tuning. Adding just the manifold did make the car go rich, but it did show some gains in the top end from the additional flow. Tuning is really needed to extract the extra power available from ported manifolds.
#30
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https://www.evolutionm.net/forums/ev...dyno-test.html
it's difficult to see, but the results are there