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Just installed a cai on my 01 LX. The intake manifold caught my eye. It appears to be made of plastic or some sort of composite. Has anyone found a performance intake mani that will help the little D17 breathe better?
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Just installed a cai on my 01 LX. The intake manifold caught my eye. It appears to be made of plastic or some sort of composite. Has anyone found a performance intake mani that will help the little D17 breathe better?
No, nothin against it, but it can't be giving optimal air/fuel flow to the head. There is almost always room for improvement.
depends on how you look at it.
If you had a metal intake manifold, it would heat up along with everything else in the engine bay, thus increasing the temperature of the air going into the engine.
The plastic intake manifold doesn't heat up as fast or as much.
No, nothin against it, but it can't be giving optimal air/fuel flow to the head. There is almost always room for improvement.
I know whee your coming from, but plastic does have its advantages, as cambo pointed out. Not only in being cheap to manufatcure but it also allows you to do things in design that cast aluminum wont. There has yet to be anything aftermarket that has been proven to beat stock performance.
__________________ 133.48 whp 117.57 tq all motor untuned dynojet
188.87 whp 187.99 tq 75 shot n20 untuned dynojet
147.5 hhp 130.5 htq all mtr tuned church's dynapack
my old d17 set up.
now swapped k20a2 4.7fd lsd kpro
I know whee your coming from, but plastic does have its advantages, as cambo pointed out. Not only in being cheap to manufatcure but it also allows you to do things in design that cast aluminum wont. There has yet to be anything aftermarket that has been proven to beat stock performance.
Someone made their own aluminum IM and it performed better than stock. Gained alot more torque and some hp, but cost over 1k. He had equipment and materials tho.
OK, if plastic is better, then why aren't we seeing performance plastic intake mani's? Earlier I read a post that said a modified b16 intake mani would fit. Anyone heard anything like that.
Last edited by suthrninca; 10-05-2004 at 10:52 PM.
A metal manifold will heat up much faster and hotter because it touches the head. It's just better technology I guess to use plastic. Still don't know why there's HOT coolant running through the TB.
If you had a metal intake manifold, it would heat up along with everything else in the engine bay, thus increasing the temperature of the air going into the engine.
The plastic intake manifold doesn't heat up as fast or as much.
Yeah, but do you think the plastic will last as well as aluminum, say after a few thousand heat cycles and couple hundred thousand miles?
Has anyone found a performance intake mani that will help the little D17 breathe better? 
