by the way my friend did a motor swap for me from a stock si motor

 

7200rpms max hp (peak) for h22a4

 

I believe fuel cut off is like 7600rpm right?

 

yeah i think so. my tach reads 7900 at fuel cut so it most likely is fuel cut around 7600

 

h23a1= 5800 fuel cut-off?

is that when u just feel nothing..

 

no.. that's when it cuts off the fuel to save what you have left of your engine when bouncing off the rev limiter...

but yeah.. the stock tachs tend to read a lil off when getting into that high of revs, so keep that in mind. around 7600 is prob pretty accurate for the rev limiter. the powerband in the h22 is in the higher rmps. weak as a kitten down low, or so it feels that way .

 

6800rpm peak power
7200rpm redline
7900rpm rev limiter

 

so its ok for you to hit about 7500+ rpms without shit happening

was curious because i was told if you want to go a bit faster remove your rev limiter.

 

Keep the rev limiter, it's there to keep you from blowing it up. You don't increase in power past 6800rpm anyway, at least on a stock motor. Shift at about 7200rpms, 7500rpms max and I wouldn't even go there very often.

 

Unless you are racing in some sort of fashion, stay atleast 1000 rpms away from redline

 

have you raced before?

 

h series have a rev limiter. not fuel cut.
rev limiter is 7800 rpm, but will read anywhere from 8000 to 8100 on stock tach.
the preludes actual fuel cut on stock ecu is like 8500 or something like that but it has a rev limiter long before it.

 

on a stock ecu I think 7600 is the peak then as stated fuel gets cut off...