What is the differnce between H22a and the F20b,
tried searching thanks for your help

 

You're talking about the S2000 motor i take it?

 

no, thats the f20c and it's drivetrain is RWD.
the f20b is a JDM DOHC accord engine with obviously a lower displacement

the h22 comes stock with a lower compression than the f20b (10:1 vs 11:1)
this high compression ratio is where the f20b is really one up on the h22... but then it also has a longer stroke.

i wouldnt even think of getting a f20b because it's just too small for the accord or prelude (only 2 liter vs. 2.2 or 2.3) and it doesnt get into the high revs that the h22 gets to (due to a longer stroke)

the compression ratio is an issue aswell, seeing as lower is usually better, esspecially when the engines are puting out the same power....

but hers the complete breakdown:
(these numbers are from what i remmeber they may be wrong, but i think i got them mostly right...)

f20b: DOHC :long stroke :200hp :11:1 Comp ratio :160?? tq: redline in the 6's
h22a: DOHC :shorter stroke:200hp :10:1 comp ratio :156 tq: redline in the 8's

 

Thanks DRfrank.

 

any time

 

if you actually think about that theres no way it could be right. its kinda the opposite. the f20 is destroked hence why its smaller so it can rev higher and still make the same power. so its the one with the higher redline (8200) I would consider it a pretty good swap although it is lacking torque compared to the h22... good engine for N/A

 

smaller bore...longer stroke on the f20

 

thats the f20c...
the big difference in the f20 b is the fact that it has a higher comp ratio, and well, compaered to an h22 it's nothing (seeing as lower is usually better when dealing with comparable power outputs) even if you were to do N/a the h22 is going to be a more solid engine