Hinckley Radio Control Car Club

Hi,

Right got me a B4 off Andy

So gonna run it in quicksilver so what pinion and spur do i need for a silver can motor 27t??

Cheers Andy

Hi Andy,

On the basis we're running 5.5 FDR indoors in the Quick Silver class - I'd start with approx. 7.5 FDR (accounting for larger wheel size and drag from the grass surface). I understand the internal ratio of a B4 is 2.6 and the stock spur gear has 81 teeth; therefore try a 28 tooth pinion as a starting point - this gives you 7.52 FDR. Dependent upon the track and conditions, you might want to go up or down a tooth on the pinion.

Cheers

James

Cheers James for the info.

I had guest at 27t pinion so i think i'll get a 27,28,29 hopefully that way i've got it covered!!

Thanks again c u tomorrow

Cheers

Andy