99-00 Intake Manifold Porting Anyone?
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.
my 99 intake is untouched and on my car still. this was a spair intake i had. so i can still test it before and after and i might.
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I would really appreciate the before/after results. As I mentioned, I did some smoothing and odds and ends, but left the resonance chamber intact. I could always pull the upper off and port it out, but would rather leave it alone for now.
BTW, I dropped off the parts for you at Fedex. You'll get an email once Fedex processes it. I threw a couple extra items in there for you as I didn't need them.
BTW, I dropped off the parts for you at Fedex. You'll get an email once Fedex processes it. I threw a couple extra items in there for you as I didn't need them.
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Senior Member
Joined: Sep 2007
Posts: 771
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From: Alamo City, Tejas
We'll test his theory soon enough as the car is slated for initial dyno tuning later this week. (First benchmark at 7psi. More to follow...)
- L
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I'd rather see how Paul's gutted/polished/shorter-than-OEM-runner plentium (sp?) makes a difference over the OEM setup.
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Senior Member
Joined: Sep 2007
Posts: 771
Total Cats: 1
From: Alamo City, Tejas
So you have two manifolds also (welded and OEM functional), and will swap them out to see if disactivating the VICS in the closed position makes a positive difference?
I'd rather see how Paul's gutted/polished/shorter-than-OEM-runner plentium (sp?) makes a difference over the OEM setup.
I'd rather see how Paul's gutted/polished/shorter-than-OEM-runner plentium (sp?) makes a difference over the OEM setup.
Sorry about the confusion.
No, I only have one manifold. I was referring to seeing how well a turbo responds to a disabled VICS...
I too am interested in seeing the results of Paul's efforts.
- L
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Looks darn good to me, still with a 2560? Did you lift right at 6800 or did it start to lost hp at that point? Is a turbo tq graph typically like that, or was the turbo possibly running out of steam after 5500?
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i guess now i'll have to do before and after dyno testing http://www.mazda-speed.com/forum2/in...c,12624.0.html
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i would really like to see how good or bad it would work. are you guys going to get rid of the flaps on the runners or keep them? i guess i can find higher priority work to do for now till someone gets the OK. love to hear more about it when it is done.
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I have an 01 manifold I'm considering running instead of the 99 manifold. No VICS FTW? 
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So trackdog racing is the company that did this 1999 manifold porting out right? That looks very clean and I would love to just ship my manifold and have them port it out. Do you guys think they would be willing to do it for me? I need to get this done soon because I'm rebuilding my motor next month. Is there anyone in SoCal would can do this for me? I'll pay you guys.
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