What is the highest a jdm h22a will be able to safely redline.
I have a h22a with a fully built head including
skunk 2 cams
camshafts stage II
vavle springs/retainers
head gasket
greddy exhaust
injen short ram intake
dc headers
and a spoon sports chipped p28.
I redline @ 8 right now.
However..I want to redline @ 8.5 or maybe 9 rpm safely and also have launch control.
This is going to be Chrome Tuning.
I have heard that the h22a can only redline @ 8 max.can you please help me? I appreaciate any help. Thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Us vs. Them &raquo;</TD></TR><TR><TD CLASS="quote">What is the highest a jdm h22a will be able to safely redline.
I have a h22a with a fully built head including
skunk 2 cams
camshafts stage II
vavle springs/retainers
head gasket
greddy exhaust
injen short ram intake
dc headers
and a spoon sports chipped p28.
I redline @ 8 right now.
However..I want to redline @ 8.5 or maybe 9 rpm safely and also have launch control.
This is going to be Chrome Tuning.
I have heard that the h22a can only redline @ 8 max.can you please help me? I appreaciate any help. Thanks. </TD></TR></TABLE>

your power shouldnt build too high i usually shift around 8200 as there is no more left after that... with pro 1's.

 

Mine is turbo and I turn it to 8400

 

i used to turn my stock head 8000.

 

turn that **** til it quits makin power.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h22chilton &raquo;</TD></TR><TR><TD CLASS="quote">turn that **** til it quits makin power. </TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speedworks &raquo;</TD></TR><TR><TD CLASS="quote">i used to turn my stock head 8000. </TD></TR></TABLE>
Your not the only one, I remember those days of sitting on the rev limiter of a P72 ecu in the burnout box with a stock head H22's rock

To answer the original question I agree I say turn it up feel out the power key to all honda engines is high rpm

 

have you dyno the motor? just look when it stops making power.....

 

We turned the coupe till 8800@the last IFO trying to keep the car in third gear going threw the traps.
Might be the reason I popped the headgasket.lol

 

i have 9500 rev limiter and attempt to shift at 9300.

 

mines turbo, 9800 all day!!!, revlimiter set at 10k, it all really depends on your tune..

 

The thing is that it's kinda hard to feel the power loss up that high in the rpm's. Especially since your so busy looking at your rev. I redlined it to 8.7 yesterday. Just to feel how it handles. Your right, 8.2 is decent. I don't want to risk blowing my engine...

 

No I have not dyno tuned it. Or even had it on the dyno for that matter. Not enough clams in the bank right now. ($$$$)...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BOOSTWERKS &raquo;</TD></TR><TR><TD CLASS="quote">mines turbo, 9800 all day!!!, revlimiter set at 10k, it all really depends on your tune.. </TD></TR></TABLE>

when does your power start to drop off?

 

I typically shifted at about 9k with my H22 setup.

 

Hi guys! Sorry for bumping this slightly-informative thread, but I'm looking for the same info (with more details...)

Is anyone turning an H22A stock bottom end to 9000 RPM's regularly? I'm roadracing with a Euro R motor with stock internals + JUN cams, with a fuel cutoff of 8500 and a shift light at 8200. I make peak power really high and I know I'd gain some straightaway speed if I let it rev to 9000. Also I'm thinking about getting a shorter final drive and might need 9000 in 5th.

Anyone turning stock crank/rods this fast?

Thanks,
Chris

 

Piston speed on an H22 (90.5 mm stroke) is:
7800 RPM Piston Speed is 4628.00 Feet per minute/
8500 RPM Piston Speed is 5043.33 FPM
9000 RPM Piston Speed is 5340.00 FPM
9500 RPM Piston Speed is 5636.67 FPM

The first S2000 AP1 turned 9000 RPM 84 mm stroke 4965 FPM
The second S2000 AP2 turned 8000 RPM 90.7 mm stroke 4760 FPM

You have to make your own decisions but I wouldnt turn more than around 8000 on stock pistons just due to the stresses placed on them at higher rpms. Put some aftermarket units in there and upgrade your valvetrain and spin it up.

 

i agree with jj , also stock in stock form I have had broken oil pumps above 8500 , generally at burn out, or 1st gear spend a few bucks and upgrade,, dyno , and know where power falls off, shift at point to keep in power

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jjspec &raquo;</TD></TR><TR><TD CLASS="quote">You have to make your own decisions but I wouldnt turn more than around 8000 on stock pistons just due to the stresses placed on them at higher rpms. Put some aftermarket units in there and upgrade your valvetrain and spin it up.</TD></TR></TABLE>

I have to use stock valves. I have JUN cams and valvesprings already. I also have to use OEM Honda rods, pistons, and crankshaft. Otherwise I'd upgrade pistons and rods. I replace oil pumps periodically.

My peak power is 7600-7900 and it doesn't fall off very quick after that. 232 peak, 225 at 8500 RPM. If I spin it to 9000 RPM, it'll keep me in my powerband.