Originally Posted by steronz
the GSR bottom end should have no problem revving that high... you just need to tune it, and be aware that the honda ecu fuel map cuts out at 9000 rpms (above 9000, it sprays in whatever the value is at 9000), so what i do is dump a bunch of fuel in leading up to that point and then it leans out past that. not an ideal solution, but it works and still makes good power without ever getting dangerously lean.
i plan on getting a custom chipped ECU from Phearable.net, with fuel and timing curves to match my high revving setup. When i'm ready to actually rev high, that is... but honestly i would be happy with 8,700 if thats where the power is dropping off at.