jdawg

Hay guys, I dont mean to beat this to death, but I dont really feel like looking through 500 pages, Just picked up a b4 love it just trying to gear it better, ny track has some triples one big doubble couple tight turns a long sweeper with a 100foot stright, have a mmp for 1/10 and runninf a lrp 7.5 motor. Sorry for this question again, but thanks again

BuggyKing

iTrader: (17)

Are looking to find out what pinion to spur to run.

jdawg

kind of both, trying to get it dailed before it snows out.

joelwhite

iTrader: (62)

try 21-22 pinion and 78 spur, should get ya close

RDOUBLEDAY

iTrader: (10)

22/78 or 20/83 Should be right.

racer1812

iTrader: (31)

wouldn't that be 22/83 or 20/78? big difference between the 2 you have..

BuggyKing

iTrader: (17)

I dont think they make an 83 t spur not sure. You could run like an 81t with 23 pinion maybe.

Davidka

iTrader: (86)

That's a HUGE motor with today's batteries. Regardless of gearing, you're probably going to want to motor down to an 8.5 or 10.5.

jdawg

Thanks guys, for the help I know the motor is a big motor Im running a 5400 2cell 25c Im at 87/20 got 33min run time but not sure if thats good gearing so I will try the other gearing

LunchboX3904

iTrader: (8)

Nah thats a great motor for a b4! I run a 5700kv (roughly a 7.5) castle motor in mine and it loves it. I think im 21/87 but i cant remember. It never goes above 130 i could go higher but theres no need.

jdawg

Ya thats where Im at, Its not too fast but fast enought, and it has good hit but not to much where you cant control it, Didnt know if there was better gearing for the motor combo or not.

jdawg

Ya thats where Im at, Its not too fast but fast enought, and it has good hit but not to much where you cant control it, Didnt know if there was better gearing for the motor combo or not. oops hit it twice sorry

LunchboX3904

iTrader: (8)

so long as your esc and motor temps are in check, sounds like you found your ideal gear setup to fit your driving style

jdawg

Ya my motor temp is about 117 125 and the esc is about 107 117 without the fan

mjk1210

iTrader: (9)

I've been running 23/78 with a 7.5 forever with no motor temp issues at all and lots of top end with a smooth bottom. (yeah, I said it)