Best engine...

[blackshine007]

Plastic? LOL

Try FRE sleeves. H22s have good blocks, they can hold just as much power as a GSR.

SO you reccomend some crappy hybrid SOHC DOHC contraption but a H22, its got plastic sleeves.,,,,

Let me use the term that Honda calls it.... Fiber Reinforced Metal (FRM)Cylinder wall lining. It's really good for for all motor, but a complete disaster for boost. Not to mention that it's an open deck design. And even though you can buy the cylinder brace thing that keeps the sleeves from moving (help me with the name, please!) What's the point of doing all of that? Get a motor that already has a closed deck that is more than capable of holding boost without buying any extra parts. As far as the rev limit.... meh, who cares? 7200 rpm should more than be sufficient for boost. You don't have to rev the bejeebus out of it to make any power. Nice sized turbo + good set of cams and pistons = win.

[josh green]

Let me use the term that Honda calls it.... Fiber Reinforced Metal (FRM)Cylinder wall lining. It's really good for for all motor, but a complete disaster for boost. Not to mention that it's an open deck design. And even though you can buy the cylinder brace thing that keeps the sleeves from moving (help me with the name, please!) What's the point of doing all of that? Get a motor that already has a closed deck that is more than capable of holding boost without buying any extra parts. As far as the rev limit.... meh, who cares? 7200 rpm should more than be sufficient for boost. You don't have to rev the bejeebus out of it to make any power. Nice sized turbo + good set of cams and pistons = win.

Actually the FRM sleeves are very strong, and they only come in the 5th gen prelude h22's. An h22 from a 96 and older were iron sleeve closed deck blocks, so I would say they are pretty strong. The weakest point in a FRM h22 is the pistons, just like any other honda. Very few companies make a FRM compatible piston and I dont really know that I would trust them. Hondas first attempt at the FRM sleeves were in the b21a1. After 300k miles you can still see the cross hatch from the factory hone, they are pretty hard on rings and few machine shops will attempt to hone them.
Just boost the stock engine, talk to emmino on here.

[.::UNKNOWN::.]

Actually the FRM sleeves are very strong, and they only come in the 5th gen prelude h22's. An h22 from a 96 and older were iron sleeve closed deck blocks, so I would say they are pretty strong. The weakest point in a FRM h22 is the pistons, just like any other honda. Very few companies make a FRM compatible piston and I dont really know that I would trust them. Hondas first attempt at the FRM sleeves were in the b21a1. After 300k miles you can still see the cross hatch from the factory hone, they are pretty hard on rings and few machine shops will attempt to hone them.
Just boost the stock engine, talk to emmino on here.

the frm sleaves cam in the 92-96 h22 the 5th gen h22 and the 4th gen h22 are identical other than the closed deck and the H23 has frm sleeves... and for the pistons answer they are called MAHLE pistons porche runs frm sleeves and they run MAHLE pistons stock and they have some for an h22

[Vteckidd]

Let me use the term that Honda calls it.... Fiber Reinforced Metal (FRM)Cylinder wall lining. It's really good for for all motor, but a complete disaster for boost. Not to mention that it's an open deck design. And even though you can buy the cylinder brace thing that keeps the sleeves from moving (help me with the name, please!) What's the point of doing all of that? Get a motor that already has a closed deck that is more than capable of holding boost without buying any extra parts. As far as the rev limit.... meh, who cares? 7200 rpm should more than be sufficient for boost. You don't have to rev the bejeebus out of it to make any power. Nice sized turbo + good set of cams and pistons = win.

I guess all those open deck 400whp GSRs arent capable of holding boost then. I guess all the 500-600whp K20A2 open deck motors are about to grenade.

The FR"M" Sleeves are fine, and the FRM is not why they fail. Josh Green is right, the PISTONS are the weak link, just like ANY OTHER HONDA MOTOR.

The Cast Pistons are what fail, NOT THE SLEEVES.

RPM wise, welcome to hondas, they have to be revved to make power, i thought that was common knowledge?

My comment about the F23 was that they have a big stroke, so you have to respect the rev limiter. As long as you stay away from it they can last. Look at EmminoDaGreats car, makes 280whp stock F23 motor but he doesnt run that power every day.

H22s will make more power, they are more rev friendly (9000rpms stock is fine with valvetrain), they are a much better designed and efficient motor.

All these people saying the h22 sucks for boost, have never done one.

They are fine for 300whp and under. Ive seen and done many h22s under 300whp WHEN PROPERLY TUNED last just as long as GSRs

[blackshine007]

I guess all those open deck 400whp GSRs arent capable of holding boost then

yeah, with the use of a block brace

. I guess all the 500-600whp K20A2 open deck motors are about to grenade.

we're talking about 2 different designs, one is far more superior than the other and to my knowledge don't have the same problem as the B series have. The K series Mazda engines are open deck too and have been known making 500whp or better without the use of a block brace. Call it a good design because Honda did their homework on the new K series which probably wouldn't use a block brace.

The FR"M" Sleeves are fine, and the FRM is not why they fail. Josh Green is right, the PISTONS are the weak link, just like ANY OTHER HONDA MOTOR.


The Cast Pistons are what fail, NOT THE SLEEVES.

I'm not gonna argue the logic of stock pistons failing but please explain warped cylinder sleeves with forged pistons? Why do every other company make iron sleeves for both the H and the B series? Why don't they feel so strongly about the FRM sleeves? Like I said, they aren't ideal for boost and most of them warp after so long. That's why it's best for the F22b bottom end

RPM wise, welcome to hondas, they have to be revved to make power, i thought that was common knowledge?

Not all hondas have to be revved. There's actually hondas out there that make decent power with not alot of rpm.

My comment about the F23 was that they have a big stroke, so you have to respect the rev limiter. As long as you stay away from it they can last. Look at EmminoDaGreats car, makes 280whp stock F23 motor but he doesnt run that power every day.

Good example of decent power with not alot of RPM

H22s will make more power, they are more rev friendly (9000rpms stock is fine with valvetrain), they are a much better designed and efficient motor.

All these people saying the h22 sucks for boost, have never done one.

They are fine for 300whp and under. Ive seen and done many h22s under 300whp WHEN PROPERLY TUNED last just as long as GSRs

I'm not arguing that the H is a bad motor, it's actually a pretty nice power but I wouldn't boost it in stock form. Add the iron sleeves, forged pistons and rods with a good bit of boost and it will be a beast. But boosting it stock...... I don't think so. If you do, no more than 7 lbs MAX!!!