[rony]

don't know how many times this has been asked but which will put out higher numbers (and wont die on me!) oh yeah, and what models are h23? all my research has been based on h22a since "v-tec = god" hehe... any help?

- rony

 

[LAblue]

h23 came from 4th gen prelude and accord same thing for h22

most h23 are nonvtec, theres also vtec version all h22 are vtec

because of their number, people use h22 for turbo built up more then the h23 , so the most powerful engines out there are h22 but logically, they have the same potential to make the same power

 

[Ludeboy]

Good info LA. The H23 has a lower comp. ratio and will handle more boost with less mods, however variable valve timing more then makes up for it. The H22 will make more power with the same pressure.

 

[TrboH22]

I'm rolling in a turbocharged H22. From what I've read and heard, turboing an H23 is easier, and works a little better than the H22. My car is currently not running because of whoever built the motor didn't do a very good job, and I'm getting the whole thing redone again. I beleive there might be slightly more potential out of an H22, but might run into more problems than a H23.

 

[PreludeSiZero]

h23 came from 4th gen prelude and accord same thing for h22

what 4th gen Accord has an H23? I thought the Prelude Si was the only car that had an H23. and what 4th gen Accord has an H22? I thought all 4 cylinder Accords had an F22.

 

[burban33]

h23 came from 4th gen prelude and accord same thing for h22

most h23 are nonvtec, theres also vtec version all h22 are vtec

because of their number, people use h22 for turbo built up more then the h23 , so the most powerful engines out there are h22 but logically, they have the same potential to make the same power

When did the H23 come with Vtec and was that in a Prelude?

 

[PreludeSiZero]

the H23 equipped with VTEC is in an Accord Wagon over in Japan.

 

[4bidden]

an h23 vtec comes in brand new accord sir wagons in japan. makes the same hp as a jdm h22

 

[blueSI]

h23

im not real sure on this for a fact but i think a h23 vtec is a japanesse preludes motor. but like i said im not real sure its just what i heard.

 

[PreludeSiZero]

the H23 with VTEC has 220hp. it has the same horsepower rating as the H22 in the Prelude Type S.

 

[TurboNOSlude]

FOCK VTEC! TURN UP THE BOOST!

Just FOCKING w/Ya
I agree with whats been posted... there are advangaes and disagatages to both motors. I think for simplicty do an H23. Less crap to break... and with a turbo... stuff will break.


But if you gotta have that few extra HP... then by all means go VTEC.

 

[racerpunkX]

Hmmmmm

Everything sounds cool so far.....

Does anyone know the comp ratio or stroke dist. on the h23 vtec in the Accord wagon in Hondaland?

Oh yeah....and I hear people say repeatedly that you don't want v-tec to engage when you are turboed. I always assumed that it would be better, then, for a turbo to be built on the h23 non-vtec. Anyone know why people are saying this though? And would you all h22 turbos keep the high compression with a re-sleeve and high comp rings and forged rods......or get lower compression pistons and all that other crap? Wouldn't you make more power with higher compression and a turbo, just need less boost?

But I really do wanna know why vtec is bad for turbo....ne1?

:spawn:
Late

 

[rony]

FOCK VTEC! TURN UP THE BOOST!

Just FOCKING w/Ya
I agree with whats been posted... there are advangaes and disagatages to both motors. I think for simplicty do an H23. Less crap to break... and with a turbo... stuff will break.


But if you gotta have that few extra HP... then by all means go VTEC.

what type of numbers are you looking at with that setup?

 

[TurboNOSlude]

Before the engine build up... I ran 8-9 psi.

The new setup with built motor and head stuff should put well over 300 hp down. I will be running 15 PSI.

Here is the dyno at 8-9 PSI

Oh, and if you thing thats not impressive.... look at the tq numbers. THE CAR WAS FAST AS SHIT.

 

[LudeAction]

the problem with turbo is not the h22, its vtec all together..the prob is that vtec has basically 2 different settings for a:f..vtec on/ off, without vtec tuning is a lot easier

 

[burban33]

The reason why Vtec is bad is because the high cam is a more aggressive cam meaning that the intake valves are open at the same time the exhaust valves are open which alows the exhaust to help pull more air and fuel into the combustion chamber. This is great for N/A but for a turbo it is bad because all the air that is being forced into the engine just goes right out the exhaust and therefore doesn't stay in the combustion chamber. A more stock cam is better because the overlap between the two valves is usually less (same as lo cam on vtec).
because the lo cam on vtec is technically a better turbo cam some people just turn the vtec off.

 

[rony]

well then whats the point of getting a h22a if your gonna turn off vtec

 

[Skunk2Integra]

better rod/stroke ratio, a much better flowing head, higher revver.

 

[TurboNOSlude]

better rod/stroke ratio, a much better flowing head, higher revver.

I thought the H23 had the better rod/stroke ratio.... huh oh well.

As for the higher flowing head and rever... that's fixed easily enough.... just build the head up.

 

[Skunk2Integra]

A higher revver requires proper bottom end lubrication. The H23 does not have oil jets to cool and lubricate the pistons/cylinder/pins.