rc10gt82

Ok heres my problem i have a traxxas bandit (haha yes i know it sux)i have a 2400 sanyo battery and a lrp sport esc and a p2k2 motor. The problem is i just got new tires and i wated some pretty big ones so i got the duratrax evader rear tires.(man thoser things are humongus)i glued them and got ready to run.I went out and drove it and the battery barely lasted 5 minutes!I use to get about 10.Oh yeah the gearing is 25-78.PLz help. The motor was sooooo hot that it started smoking.



thnks Steven

bradz24

yeah chaging your tire size changes your over all roll out. . so you are going to have to gear down to try and get the same roll out you have before. Also the bigger tires have more mass and it takes more to turn them so your car will never have the same run time..

mike_evader2

I agree with bradz. If your motor gets that hot, you want to put a smsller pinion (4-6 less teeth)

rc10gt82

i have a 25 tooth pinion now and the pinions are like 3 $ at my lhs
do u think i should go to a 18 or a 15 or higher?

azwink

My Feedback: (1)

you should try any where between a 15 and 18 tooth pinion. The gears are a lot cheaper then buying a new motor cause you fried it.

studysession

I have 2 Traxxas Bandits.

I changed one of them to a street truck. I like them. A lot of fun.

I also have 4 nitro cars and trucks and buggies.

mbx5nitro

i think changeing the tire size would be cool but u have to think and the gears and the motor i have a rutler and i put some whells for a e-maxx on it and the motor burded out and now i need a new 1 so be carefull with wut u do

Reeco

hey um could this make it hott tooo haveing the wrong turn motor omn a wrong esc limit.

rc10gt82

yes the esc limit can do it but my esc goes down to 14 and this is a 27 so im ok. LAter in the week im gonna go get a pinion gear im gonna get a 15 tooth so i can really gear down. Thnks for the help all

rc10gt82

I went and bought the new gears a 20T and a 16T now the 20 is on and its still dumping like crazy and the 16T wont fit unless i get a bigger spur gear

marquette

how do you supose to gear down

Bigpimphustler

"Gearing down" means to decrease the pinion:spur gear ratio.

That means running either a smaller pinion gear, or a larger spur gear.

For example, if you are running a 20tooth pinion, and an 80tooth spur, you are running 1:4. If you were to change the pinion gear to 15 lets say, your ratio is now 1:5.3

This would be a drastic change. Changing 5 teeth on the spur would have less affect, allowing for smaller increments of change, and a finer tune. For example, staying with the 20tooth pinion, and increasing the spur by 5 teeth to an 85 (still gearing down here) would change the ratio from 1:4 to 1:4.25, making a much smaller change in overall ratio.

Gearing down - longer runs, lower temp, more acceleration, less top speed

Gearing up - shorter runs, higher temps, less acceleration, more top speed

imrcbob

My Feedback: (1)

Just a personal observation:

I run my Rustler with a 16x2 and 15tooth pinion. The motor and esc stay cool. The top speed is slower than the stock (18?) pinion provided, but quick takeoffs and wheelies are much more fun than top speed. I'm going to try a 13 tooth next.