9000rpm h22
hay guys whats up. i have a question regarding an h22a jspec. my friend has an accord with an h22. he is planing on buying a top end kit that will allow him to rev to like 11k. my question is what dose he have to do to the bottom end to be able to reach 9k safely. this is his dd and he dosent want to go nuts just be able to hit 9k with no worries. thanks alot
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cb7-R »</TD></TR><TR><TD CLASS="quote">What kind of top end kit????</TD></TR></TABLE>
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please dont try and rev the H22 to 11k you will do allot of damage to the motor and its pointless. The rod stoke ratio is not optimal to rev that high. Do the basic bolt on and maybe somehead work and be happy. If he wants a motor tha he can rev to 9k or 9.5k then he may want to look into a b16 of b16b but youcan say goodbye to his torque.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TwoRedEGgs »</TD></TR><TR><TD CLASS="quote">please dont try and rev the H22 to 11k you will do allot of damage to the motor and its pointless. The rod stoke ratio is not optimal to rev that high. Do the basic bolt on and maybe somehead work and be happy. If he wants a motor tha he can rev to 9k or 9.5k then he may want to look into a b16 of b16b but youcan say goodbye to his torque. </TD></TR></TABLE>
I would say 1.57 is not a bad rod to stroke ratio, its only about .2 short of your suggested b16b (1.77 r/s)
That isn't to suggest that this guy needs 9000rpm to make power with his magic "top end kit"....lol
I would say 1.57 is not a bad rod to stroke ratio, its only about .2 short of your suggested b16b (1.77 r/s)
That isn't to suggest that this guy needs 9000rpm to make power with his magic "top end kit"....lol
I am shooting for 9000rpm also
https://honda-tech.com/zerothread/1822177
i hope my short block can take it
https://honda-tech.com/zerothread/1822177
i hope my short block can take it
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The_Head »</TD></TR><TR><TD CLASS="quote">geesus, power is power, does it really matter what rpms its at?</TD></TR></TABLE>
yea it does, its gotta rev mad high y0
yea it does, its gotta rev mad high y0
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">The older I get, the more I appreciate torque.
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Actually the b16b r/s ratio is more like 1.81 or 1.84 if I am not mistaken. Alot of those BTCC Accords would turn the cylinder head around on the block--just to get some sort of ram air effect--as the intake ports would now face the front of the car. They also had an 8500 rpm ceiling--and they were making 300-320 at the crank from 2.0 liters.
if built right you wont loose any torque. also when your racing somtimes you need alittle extra revs. doesnt mean it will be taken there everyday but i nice to have a good peace of mind when you power shift 3rd to 4th at 8800 rpms
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 »</TD></TR><TR><TD CLASS="quote">Actually the b16b r/s ratio is more like 1.81 or 1.84 if I am not mistaken. Alot of those BTCC Accords would turn the cylinder head around on the block--just to get some sort of ram air effect--as the intake ports would now face the front of the car. They also had an 8500 rpm ceiling--and they were making 300-320 at the crank from 2.0 liters.</TD></TR></TABLE>
accutally they had a squential gear box and they spun the entire engine around and placed it closer to the firewall to help with weight distrubution.
they also used v6 chassis
accutally they had a squential gear box and they spun the entire engine around and placed it closer to the firewall to help with weight distrubution.
they also used v6 chassis
Also, the H22 is a "bottom feeder" oiling design (like the d-series)-that is to say the oil channel that feeds the main bearings (which in turn goes through the crank to feed the rods) is below the crank actually inside the girdle--whereas the b series oil channels are above the crank inside the block. I know for very high-rpm d -series motors where they see sustained rpm (like road racing) the bottom feed design becomes a real problem. Seeing as how the h22 has the same setup for the oiling system--it also may not like the elevated revs.
the top end kit is from kms. it would be nice to have the extra revs when cornering. yes this is his dd but he wont be that high everyday. its not like he wants to take it past 9k he isnt shooting for any power record numbers and he isnt saying o i wanna take it to 11k so im cool he just wants a little extra. i know its been done and if done right it wont hurt anything if he uses it sometimes. and he dose have a rev limiter
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91SiZ6 »</TD></TR><TR><TD CLASS="quote">...or an engine meant to rev high in the first place.
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exactly....there are no market cams that would make power that high in an h22, **** jd3jdm's setup only makes power to 8300 and thats a pretty all-out top end motor, with the exception of the cams....jun cams, as well as the rest of the market h series camshafts, are pretty shitty compared to what a good set of custom grinds could do....
</TD></TR></TABLE>exactly....there are no market cams that would make power that high in an h22, **** jd3jdm's setup only makes power to 8300 and thats a pretty all-out top end motor, with the exception of the cams....jun cams, as well as the rest of the market h series camshafts, are pretty shitty compared to what a good set of custom grinds could do....







