accordmatt

l have a jdm h22a right now but planning on building up. now l know jdm motors have more power. l have the BBBB block by the way. now should l keep the block l have and build or get a h23 block and build? lm going for n/a all motor build

minilogoguy18

All depends if you want to increase displacement using the H23a1 crank because both the blocks are identical when they are bare.

accordmatt

l thought the h23 was a stroked h22? so l figured that would be a bigger bore block = higher comp. more hp

minilogoguy18

No, the only thing that is different is the crank and rods increasing stroke, bore is the same, they are cast in the same mold. Seems you need to learn up on some things as bore has nothing to do with compression.

accordmatt

uhh yes it does if u increase the bore u raise compression. l have a stock 87mm bore if l increased it to 88mm or 89 l would increase my compression. also would depend on the piston types, but l would be using high comp pistons

snobordboy

As he said, you have alot to learn.

Bore is simply how large the diameter of the cylinder is, and it has no direct effect on the compression of the engine. If when you bore out an engine, you also add high compression pistons, then you have a whole new ball game.

If you want to build a strong motor with mainly stock Honda parts, you want to use the H23 crank and rods, so that you have the larger stroke compared to the H22. In effect making a "stroker" engine. To make the most power from this, you want to aim for a high compression ratio, which depends on the piston you choose, lowest being the h23 piston, up to the highest being the H22 type-s piston.

To take full advantage of the size of displacement, and compression ratio you have created, you need some good aggressive cams, a well flowing intake and exhaust system, and some good tuning via upgraded management

FPD

both blocks same you run more stoke 95mmh23 90mm h22 drag or road course we can sell you a FPD balance shaft eliminator kit 80.00 only on hondatech or preludezone on are website they are 110.00 you can see the kit at www.franksperformancedevelopement.com thanks.

zonian91

I just ordered an FPD BALANCE SHAFT ELIMINATOR kit and I was wondering if it could be installed on the motor with it being in the car?

Sparksman

No............