Andrew Knapp

I have a 17.5 and a 13.5, and i was wondering what i need to gear it at. I Run an Xray 007. So does anyone know what to gear those motors at?

kn7671

iTrader: (16)

Well taking all the variables out, Carpet, Foam, Rubber, motor brand, start around the following:

13.5 = 4.5 - 5.0 FDR
17.5 = 4.0 - 4.5 FDR

Andrew Knapp

Thank you that helped
If anyone else has any other insight on what to gear a 13.5 or a 17.5 at, please do tell.

rocket-mtrsprts

iTrader: (1)

This is something you need to find out on your own as there really isn't a definitive answer. Even bl motors differ some from one to the next, and considering that no one knows the diameter or your tires or the track length you're running or your batteries it's impossible to say for sure.

Drifter73

But they are good starting points. Try to temp your motor @ 140º ±.

teabag

iTrader: (3)

I can gear as low as 3.5 for the 17.5, I don't have a hammer throttle so my motor temps around 155-160 after 5.

Andrew Knapp

Thanks guys this really helped!!