99-00 Intake Manifold Porting Anyone?
#28
Back when I was still rockin the MP62, I talked with Gary about doing this. He sent me the dyno graphs of higher boost (10+ psi) supercharged cars with the ported intake, and there was only like 5-8 rwhp gain, all up top, IIRC.
Clearly the MP62 and a good turbo setup are quite different beasts, but the work involved in the porting didn't seem worth it to me for such little gains.
Clearly the MP62 and a good turbo setup are quite different beasts, but the work involved in the porting didn't seem worth it to me for such little gains.
#30
8 rwhp sounds like a decent score, but this was really like 6-7k IIRC. I will try to hook you up with the graph in a bit.
Last edited by em99sport; 01-20-2008 at 01:50 AM.
#33
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8hp could mean me breaking 300 or not and considering it is just the cost of the bits and my time it's worth it. plus i added some lightness
people are making less increase between VICs being operational and not and everyone seems gung-ho about hooking that up. which begs the question, is this working VICs vs. the porting? or non-working VICs vs. porting?
people are making less increase between VICs being operational and not and everyone seems gung-ho about hooking that up. which begs the question, is this working VICs vs. the porting? or non-working VICs vs. porting?
#34
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8hp could mean me breaking 300 or not and considering it is just the cost of the bits and my time it's worth it.
people are making less increase between VICs being operational and not. which begs the question, is this working VICs vs. the porting? or non-working VICs vs. porting?
people are making less increase between VICs being operational and not. which begs the question, is this working VICs vs. the porting? or non-working VICs vs. porting?
#37
In my eyes if the port work made 8whp on a superchared motor, it would make less on a turbocharged car. The super is using power from the crankshaft to make boost, so the port work reducing boost pressure reduces the amount of power the blower takes from the crank. The benefits would be less on a turbo car I would think.
Anyway, it's looking good, and I want to do this soon. I've already got A LOT of headwork done so it could use a better intake manifold.
Anyway, it's looking good, and I want to do this soon. I've already got A LOT of headwork done so it could use a better intake manifold.
#39
Dunno about that one, better ask Corky.
From the reading I did, it seems that turbo'd engines like the VICS working, and SC'd engines can deal without it. Corky would probably be the best source of info on the subject. I couldn't tell much difference between the VICS working or not on my MP62'd engine.
If the butterflies are intact, then the VICS would still be controllable. The solenoid controls the opening and closing of the butterflies.
I wish you could have done some dyno testing before and after. The data would have been a goldmine.
From the reading I did, it seems that turbo'd engines like the VICS working, and SC'd engines can deal without it. Corky would probably be the best source of info on the subject. I couldn't tell much difference between the VICS working or not on my MP62'd engine.
If the butterflies are intact, then the VICS would still be controllable. The solenoid controls the opening and closing of the butterflies.
I wish you could have done some dyno testing before and after. The data would have been a goldmine.