Intake Manifold?

[SiNcKe]

I'm wondering has anybody done anything to there's or has bought a new one. Does it give significant HP gains and whats the cost like for something like this?

[deevergote]

It depends on what you're looking for. If you don't have an F22A6 engine, you can get the A6 manifold for a few bucks at a junk yard or ebay (say, $100 maybe... less if you shop smart). They'd be good for a few HP. The majority of the HP difference between the DX/LX engines (F22A1) and the EX/SE engines (F22A4/6) comes from the intake and exhaust manifolds.

If you'd like, you could Extrude Hone the intake manifold. The Extrude Hone process involves pushing an abraisive material through the manifold to smooth the interior surfaces. It's not cheap, though...

Finally, there are aftermarket manifolds. They can get really expensive, and are very often made for specific purposes, like all-motor or turbo setups. Chances are, you won't need anything really expensive unless you're doing a major buildup. If you do look into aftermarket, make sure that the piece you get is good for your setup.

[SiNcKe]

Well I have an EX, so does that mean i have the F22A4? I'll look and see if i can find a F22A6 manifold. I dont think i'll need any aftermarket manifolds just yet. Now how is the process of Extrude Hone done? If I find an A6 manifold I could do it to that if at all possibility.
Thanks for the reply

[urbanrunner]

Go to jgenginedynamics.com, and give thema call, i know they do bores for throttle bodies and intake manifolds. And in my opinion you would be beter off boreing out your throttle body first then do the intake manifold afterwards so that there is no restriction of air from the throtle body though to the intake manifold. I know i have an accord lx, and for my throttle bodyit cost $150, without core charge, and for the the whole intake manifold it cost $180. But go to the site and see what you can find out, JG swears that with my accod a throtle and intake maniold bore i should see better throotle response and anywhere from 5 to 10 hp gain.

[deevergote]

Yeah, that's a good point. The throttle body is definitely a better place to start... An intake, if you don't already have one, would also be a great idea (since the stock airbox won't allow you to realize the potential of the TB and manifold bore).

I've heard good things about JG too... They're mentioned a few times in a book I have (Honda & Acura Engine Performance... great book for beginners)

[SiNcKe]

Is there any other throttle bodies I could get from another engine that would fit on my engine and be better?

[MRX]

i've heard of V6 accord throttle bodies fitting on the h23 intake plenum. So if u get an f22a6 intake mani, h23 plenum u could probably do alot of things with the throttle body as far as options of performance. I haven't tried this theory yet but search some prelude forums and see what they say.

[NutBucket]

Skunk2 has a mani for the H22 that's pending CARB approval. Their B18 mani's are suppose to be the shit.

[MRX]

wait does he have a f22 or h22?

[SiNcKe]

I have an F22A6

[PRIMOCB7]

i had extrude hone do the work on my intake manifold years ago and matched w/ a ported tb on a F22A6. i swapped over to a jdm F22B and was able to keep the manifold and tb. worth the $$$. custom intake manifolds are nice too, but its gonna cost you some serious $$$. u can try these guys for more info :
www.sfp.net/
www.honda-performance.com/
www.extrudehone.com/
http://jgenginedynamics.com/