Boston Rc boy

Hello,

I'm fairly new to the RC World. I recently bought a HPI Sprint 2 and installed a Mamba Max 7700. What gearing ratio(spur and pinion) do you recommend for top speed applications? I'm running 6 cell NIMH.

Thanks!

Jeff

drifter24

iTrader: (8)

Hi Jeff.
try 78/28= 5.93

Mike - E

iTrader: (9)

Im having a similar problem where my engine overheats, what are good gear ratios to keep it kool?, i also have a sprint 2 with a mamba 7700kv

evanwest94

iTrader: (13)

I have a sprint 2 too and I am running a 3.0t mod motor, and mine over heats too. and i dont want to burn up my $250 ESC

Mike - E

iTrader: (9)

so im not alone, help anyone?

evanwest94

iTrader: (13)

we need a Sprint 2 thread!!!