Power increases with ITB conversion?
#1
Rotary Freak
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Power increases with ITB conversion?
I've been browsing through the Time Slips/Dyno section, and everybody that's N/A with standalone doesn't seem to break 200whp without custom intake manifolds or wild porting. I have an S5 N/A engine, mildly streetported ("smog-able"), and for a while I'll keep it as stock as it is (stock ECU, mild exhaust upgrades) so as to not have lots of power when I start learning the local racetracks. However, further down the line I'd like to increase power substantially (but not too much for an N/A drivetrain to hold), and doing it N/A and while saving some weight would be a plus.
Simply put, I'm wondering just how much power there is to gain from switching from the stock intake manifolds to, say, a side-draft DCOE-style 45mm twin-throttle body setup. I would retain the stock LIM, use a Mazdatrix UIM and get a throttle body setup from TWM induction (that's what I was thinking, anyways).
I know there's plenty of room to improve on the exhaust side of the NA FC, but I was wondering if anyone can comment on just how much improvement can be made on the intake side.
Simply put, I'm wondering just how much power there is to gain from switching from the stock intake manifolds to, say, a side-draft DCOE-style 45mm twin-throttle body setup. I would retain the stock LIM, use a Mazdatrix UIM and get a throttle body setup from TWM induction (that's what I was thinking, anyways).
I know there's plenty of room to improve on the exhaust side of the NA FC, but I was wondering if anyone can comment on just how much improvement can be made on the intake side.
#3
Passing life by
With a properly fabed manifold you can port away and run ITBs and I will suspect much more impressive gains.
Expect 800 to 1500 for a custom mani + your ITB's not to bad.
I am going to be fabing one for a friend with stock TB for a large SP here shortly. I will post numbers before SP after SP and with custom mani. The SP also contains no delayd closing time.
Expect 800 to 1500 for a custom mani + your ITB's not to bad.
I am going to be fabing one for a friend with stock TB for a large SP here shortly. I will post numbers before SP after SP and with custom mani. The SP also contains no delayd closing time.
Last edited by iceblue; 05-23-06 at 12:53 AM.
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