DIY port & polish intake manifold
Nov 15, 2005, 06:02 PM
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DIY port & polish intake manifold
I'm in the process of porting & polishing my Ralliart intake manifold. I was able to widen the ports about 3mm on each side, open up injector shrouds and polish the runner about 3-4" into the inside of the manifold. I've also decided to improve the airflow thru my TB and put it all back together with phenolic gaskets.
Nov 15, 2005, 06:19 PM
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Otter, Summit Racing sells a P&P kit. It's complete and works very good. Good luck to ya, good winter project. Let me know if you have any questions. Look into doing your own TB also (not boring), there's some work to be done there also.
Nov 15, 2005, 06:24 PM
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Otter, I think it might be a little too much work for a Dremel. Summit's kit is for a regular electric drill. Works great. Also consider phenolic gaskets. Got mine from PR_Mivec , looks like an exact copy of OEM gaskets.
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Nov 15, 2005, 08:18 PM
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Originally Posted by CrazyCal
Otter, Summit Racing sells a P&P kit. It's complete and works very good. Good luck to ya, good winter project. Let me know if you have any questions. Look into doing your own TB also (not boring), there's some work to be done there also.
Do you remember the Kit part # or price?
WADAD
Nov 15, 2005, 08:58 PM
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ok, I understand the gaskets are to combat heat transfer right? and what exactly is porting? polishing, it seems, is self explanatory since rough edges damage smooth air, but I would appreciate if you guys could tell me what the heck all this means. most of the threads I have read just talk about how much power and don't go into detail about what it is. thanks
Nov 15, 2005, 09:04 PM
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I don't know how true this is of the Ralliarts but becareful with all this polishing. In the Lancer/Mirage world we have heard of guys polishing the intake manifold and causing a loss in performance. Something about roughness of the runners causing a better air mixture. I know you are not polishing the entire runner but just a warning.
WADAD
Found it and take it for what it is worth
WADAD
Found it and take it for what it is worth
Originally Posted by bahamut
I meant to say porting the IM . . . I'm so used to typing PnP.
If you polish up the IM runner, you'll screw up the turbulence effect. A 4g mirage owner had done so, and his motor didn't want to punch beyond 4K rpm or so. Also, a CEL came too. Constant bogging.
If you polish up the IM runner, you'll screw up the turbulence effect. A 4g mirage owner had done so, and his motor didn't want to punch beyond 4K rpm or so. Also, a CEL came too. Constant bogging.
Last edited by WADADLIG_OZ; Nov 15, 2005 at 09:19 PM.
Nov 15, 2005, 09:27 PM
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i was also planning on doing this soon. i was just wanting to get some top end gain out of my stock motor. plz let us know what kind of gains you get. dyno or 1320 performance!!!!!!!!
brad
brad