well, my rod and piston went bad about 2 months ago. I can get stock replacement parts pretty much free. But I want to go for turbo application, what are something I need to get so that it'll be low-mid built and will be able to handle low-mid boost, I'm aiming for about 280-350hp, just enough to make into the 12 section???

Mike previously suggested that stock internals of a JDM H22 can handle up to or more than 260 whp. So I'm thinking that I don't need to rebuild it much. I'm on the process of learning about Engine and internals.

There is this one machine shop in the local area, but it's not as popular here in ATL so I don't know how far they can go. And i want to do pretty much most of the rebuild myself with help from my cousin. He's a owner of the shop and an experience mechanic, we just don't have machinary equiments. So I guess I'd look into internal parts that's direct bolt-on/replacement and does not require machine jobs. Please give suggestions to what brand, and where can I look for them at with a good price.

thanks again everyone.

 

I believe you're somewhat limited in piston choice by the stock cylinder sleeves. They're made of a material called FRM (fiber reinforced metal). The metal in this case being aluminum. H-series pistons have some kind of an iron coating on them to be compatible with the sleeves. The FRM material is not compatible with standard aftermarket forged aluminum pistons. The long and short of it is that you have to resleeve an H22 to run any sort of aluminum pistons.

However, that doesn't mean that the pistons are necessarily the failing point of the engine. Honda pistons are made out of cast hypereutectic aluminum which is the same material which plenty of turbo cars use and I don't think turning up the boost is going to blow up a piston.

If you want to make the engine more beefy I would probably run some kind of forged rods with stock pistons, and a thicker head gasket to bring the compession ratio down a tad. The thicker gasket would require adjustable cam gears, which are a good idea anyway on a turbocharged VTEC engine.

 

Thanks mike, I've checked with the local machine shop, they said they could resleeve the block, but do not have experience in Honda engines since that shop is mostly for domestic.

So in short, I'd need these if I aim for higher boost:

1/. Rod - I can get my hands on Crower, but I need to re-bore for both ends.
2/. Thicker head gasket - I have completely no idea of where to look for.
3/. Adjustable Cam Gear: Should I go for UNORTHODOX RACING ULTRA-TR Adjustable Cam Gear or AEM? AEM is about half the price. Also, there's Unorthodox Ultra-TS series which is about the same price as AEM.

About camshafts, do I need to replace them as well?

btw, one quick question, how far can I go if I want it to be streatable and still knocking on 93 octane?

 

With correct tuning, and assuming your CR isn't going to be above 12 because of your high boost, 93 octane is perfectly streetable at any low to mid PSI.

 

Cometic has a line of thicker head gaskets to lower CR.

As for the rods, I'm not really sure how much power the stock ones can handle. If you're going to be replacing them anyway or at least that far into the motor because of the bearing, then I guess forged aren't a bad idea. Eagle also makes a pretty nice rod, not sure whether it needs any machine work to fit in an H22 like you say the Crower does.

Cam gears, there's a bazillion and one different kinds out there.