Pinion gear on E620

[skurniaw]

What is the suitable pinion gear for E620 ?
My system now is :

10S2P 4350 Mah Flight Power Battery
Thunder Tiger Motor
BLS 451 cyclic servo
HV85 Castle creation ESC
Headspeed 2300 rpm

I found that with this system got too high RPM with the standard pinion gear given in the kit ( 11T ). The headspeed is 2300 rpm now. Is it normal ?

Thanks,

[Steve Bryant]

are you running a throttle curve or the CC gov?