porting intake mani
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From: Redondo Beach, CA
porting intake mani when i do my cc503 upgrade, i'm looking at about 40rwhp gain, right?
would it be worth my time/money to have the intake manifold ported at the same time? are we talking a noticeable difference in power from porting the manifold?
would it be worth my time/money to have the intake manifold ported at the same time? are we talking a noticeable difference in power from porting the manifold?
Unless your heads are ported or gasket matched I wouldn't bother because the lack of head flow is a bigger barrier to gaining hp/tq then the intake is at this point. Now that said if you just want to have it done while the intake is off, I don't think it will hurt you any.
You would not gain anything with stock heads. That cam putting out 40hp maybe, maybe not! All cars are different and depends on what other supporting mods you have already? A4 or m6? Ive seen that cam only put out 25hp over stock but it depends on what you have.
Thread Starter
TECH Resident
Joined: Oct 2008
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From: Redondo Beach, CA
obviously i'd need to retune the car after all that.
so it seems the concencous is not to port the intake?
Like they said. Without porting your heads, porting your intake manifold will do nothing. It wont HURT...but the flow can only go as fast as the smallest part and that would be your heads. The air will still flow the exact same way basically.
If you port your heads though then it will definately benefit you to port the intake manifold.
It is up to you what you want to do. If you wanna port it now, go for it lol, wont cause any problems...If your having someone else port it though why not save the cash and put it into something else? Just my opinion
If you port your heads though then it will definately benefit you to port the intake manifold.
It is up to you what you want to do. If you wanna port it now, go for it lol, wont cause any problems...If your having someone else port it though why not save the cash and put it into something else? Just my opinion
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There are guys on here that have lost out on power by intake manifold porting. Ron at AI and I talked about this during my time of purchase. If I remember correctly, Speed Demon gained a substantial amount of HP by switching back to a stock OEM manifold from a ported. If you do get it ported I would send it to Advanced Induction and have them do the work.
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There are guys on here that have lost out on power by intake manifold porting. Ron at AI and I talked about this during my time of purchase. If I remember correctly, Speed Demon gained a substantial amount of HP by switching back to a stock OEM manifold from a ported. If you do get it ported I would send it to Advanced Induction and have them do the work.
Plain and simple don't even bother. Lloyd says you need to be spinning some pretty high RPM's to pick up anything. Without ported heads it's pretty much pointless to even touch it. Even gasket matching isn't going to do anything for you. Even with a set of ported heads...with a cam that size you would probably not see any hp gains with a ported manifold. That cam is not made to spin much more than 6k. Many guys shift that cam at 6100-6200 and at that RPM a ported manifold would barely be getting started making more HP over a non-ported piece.
It's really not worth the time and trouble to touch a stock manifold, unless you're build is pretty wild. But I also need to agree with some of the other guys. That cam is not going to net you 40rwhp more. More reasonable is 25...maybe 30 with a good tune. A cam that size is not going to bump you 50 hp at the crank.
It's really not worth the time and trouble to touch a stock manifold, unless you're build is pretty wild. But I also need to agree with some of the other guys. That cam is not going to net you 40rwhp more. More reasonable is 25...maybe 30 with a good tune. A cam that size is not going to bump you 50 hp at the crank.
You have me wondering if I am hurting because of my ported intake...being we went with the same vendor. I have a stock unported laying around I want to swap on and have dyno'd with to see if my numbers change for the better.
