Originally Posted by brax90si
Intake manifold is a helper mod in my opinion. It'll give very little gains to a stock engine, and make more power as your power level rises. You won't get 30hp from an intake manifold ever. I doubt even if you were boosted with 400hp. Boost Designs makes wild claims, like 25-30hp from underdrive pullies.
-Jeff
i dont know about that. my friends 2.05litre honda prelude (that bastardized b21) got 21whp from just boring the TB and intake plenum.
just by adding my 3" short ram intake i noticed very noticable power increase. it doesnt fall on its face at 5800rpm anymore. it now pulls close to 7000rpm. Long stroke motors love to breath and can give a rats ass about velocity which is needed for your short stroke motors cause the dwell time is longer on them. a lot of these things you can get done for very cheap at your local machinist. doesnt even have to be an auto performance machinist. a good machinist with a Standard Modern lathe and a Bridgeport can make you just about anything.
now that 3\25-30hp gain from pullies is BS.
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Last edited by buck19; Feb 13, 2005 at 11:09 AM.