how would i have to build up an H22 inorder to put a turbo on it. I'm not lookin at a huge turbo, somethin not to high in pressure, but i want to build up the engine so that i woulnt be screwed buting a new engine

 

It depends on how much boost you plan on running. Most turbo companies say that you can run 7-9 PSI on stock internals with the full turbo kit that they offer. Personally, I think that any engine is going to need at least some reinforcement if you plan on going Turbo.

First you are going to need some new valve springs, because the factory ones aren't going to be able to handle so much power... the last thing that you want is the springs wearing out, so you get valve float and end up having one of your valves smacking a piston head. The factory Honda crank is terrific, and most pro-drag Honda's still use factory, cranks so you should be fine with the one you have. You may want to consider some forged connecting rods, and some low compression piston heads.

If you have a 5th gen prelude (H22a4) then you are also going to want new sleeves, or sleeve gaurds because you have an open deck engine. The 4th gen Lude motor is closed deck, so you shouldn't need these parts if that's the case.

~Peace

 

also, youll need a way of managing your fuel via hondata or v-afc with a dyno tune of course....do you have a prelude or just an h22, cause like IHI said, if you have an older lude motor h22a1, it would be closed deck which would be more ideal.

 

i have a 93 type S, but i want to get an h22 swaped in. i have enough money for the engine but b4 i want to put it in i want to build it up and a turbo then came to my mind. i mjust wondering on what parts i need ot build it up so im not screwed.

 

new valve springs?!?! LOL!!

valve float happens at rpm's higher than stock with aggressive cam ramp speeds. valve float is when the valve doesnt follow the cam profile, remaining open due to slow returnf rom an insuficient strength. turbocharging has nothing to do with this. CAMS have everything to do with this.


and WTF is a "piston head"? LMFAO!!

 

depends on how much boost you plan to run. anything over 10psi or ANY amount of boost with improper tuning will require buildup.

the H22's ring lands are thin to reduce hydrocarbons. this also makes them prone to cracking under boost. replace your pistons if you plan to exceed 10 psi of boost, or if you use a Drag kit (their fuel management is horrid). forged is the way to go, but you'll either need slipskirt pistons to prevent cylinder sleeve wear or replace the sleeves with iron. a lower compression piston will help in detonation control as turbocharging is effectively an increase in compression due to the increase in air ingestion.

rods. stock rods are fine for low boost. shot peen your stock rods to save money for medium boost levels, up to 12psi. replace the rods with H-beams if you're cheap, or I beams from Crower if you want a true high performance setup. a lighter rotating assembly reduces bearing stress and increases horsepower due to reduced drag, inertia, and friction.

get a quality head gasket.

have your whole rotating assembly balanced when the parts are installed, and use quality fasteners. a balanced rotating assembly produces more power and reduces chances of extra stress on the rotating components.


next time, do a search.

 

:angry:

 

blew out my piston ring at 5psi...be prepared to drop alot of money if ur goin turbo