Aside from bragging rights, what is the point of pushing the motor another 500rpms if you risk blowing the thing up? It's one thing if it's an N/A motor, but on a FI motor, you are far more likely to grenade something at max rpms. Besides, it's unlikely that you'll be making any additional power past 8500rpms to be worth the risk.

 

It all depends on what turbo you are running and if you have the engine support to increase the rpm. I am sure a 76-80mm turbo would love spinning higher than 8500 rpm...assuming you have the camshafts to keep making power past that point; which some do.

 

Rather then Rev out just lower the rear final drive. Gain more mph per gear without killing the motor. I'd Rev to 8500 max. That's what I do to my stock ap2.

 

Both my stock and built 2.2 engines revved to 9k seems ok to me. But I've always used eneos oil

 

It's not that easy

 

Mine is set at 8500...

 

I don't remember if it was that high, but it was definitely well over 9k. I think you'll be alright at/around 9k.

My rev limiter is at 9k on my boosted, bone stock AP2 motor and it seems fine.

 

I like the idea of a higher red line because it will help you stay in your powerband longer even if you are not making more power. Id say its worth it as long as it holds the power.
Its better than shifting and building up the powerband again.

Wasn't the original f20 supposed to be at 10k? I heard that honda backed out at the last second and made it 9k?

 

I can't explain it in my own words. This is something that the tech at Ferrea explained to me when I was asking him which I should go for with my build.

 

thanks for all the responses guys, Im leaning towards a 9000 redline, I think ill be fine there