I would like to know the fastest gearing for and RS4 MT w/ 17T motor??
Te stock pinion was included and meant for 16&17turn motors. HPIMan you
might try addinf one tooth maybe. I run a 17tor 18t on my 12double with a
stock spur... The kit comes with 96/22. With a 90t spur, you should be
DROPPING pinion size not increasing habib!! You are going to if not already
kill your ESC batts and motor.
I run stock races and would NEVER consider going over a 30/96 ratio, it
woulds melt everything and be SLOW.. Stock motor have more torque than
mod's so you always put larger pinions on them..
Try something in the range of 20-22t pinion for that motor.. you should see
a marked improovement in accela nd probably top end also..
I though with mod you had more power, well you do, but only at higher RPM so
you have to gear down.. I learned the hard way by melting a mod totaly
"When in trouble, give it double."
>> I would like to know the fastest gearing for and RS4 MT w/ 17T motor??
>I'm not sure what you mean by fastest... do you mean highest top
>speeds... quickest acceleration... or quickest track lap times?? I run
>my RS4 MT with a 15 turn tripple Reedy mod and an 18 tooth pinnion with
>the stock spur. It's plenty fast for me, I actually would like to gear
>it down a little because the motor gets a little on the warm side on hot
>days, but the motor can rubs if I gear down on the pinnion and no one
>makes a spur gear bigger than 96 teeth. I'll probably just switch to a
>17 turn instead and save the 15 turn for bigger tracks.
Form what I've experienced with this kit, I wouldn't run any spur
smaller than 96-94 teeth. I've found the 4WD drivechain really requires
a higher final drive ratio in order to really get things turning.
Unfortunately I cant run any pinnion smaller than 18 tooth with the 96
tooth spur. In my case, with this ratio the rear belt rubs just
slightly on the motor can. I could probably take a dremel to the motor
can and clean out just a little (like 1-1.5 mm) off the can to get the
belt to clear. Then I could probably gear down to a 16-17 tooth
pinnion... but at this time the highest final drive ratio I can run is
(96/18) x 2.6 = 13.87. I would recommend this ratio to you with the 17
turn motor, and then fine tuning it from there. I honestly can't
recommend any ratio if you're going to use a 90 tooth spur, but if you
really like the 90 tooth spur, I would go with the smallest pinnion you
can fit on untill the can starts to rub on the rear belt. Im running a
15 turn tripple.
Also note that I run my MT off road with Associated tires and wheels.
These are much larger (and maybe heavier) than the stock tires/wheels...
so I need to run a higher final drive ratio with this set-up when
compared to the stock set-up.
I have run a 87 spur on mine, BUT I was carefull and made sure I kept a good
final ratio, in fact I was up to a 26/96 for my stock motor and by dropping
to a 87 was able to stagger back to my 24t pinion and have room to advance
further (Rather than buy another pinion, test, buy another.. I had the 87
sitting around for mt T3). BUT I found that the 26/96 was optimal, the
24/87 just got things hotter and was slower off the line, with no ramakable
increase in top end..
"When in trouble, give it double."
RIGHT NOW, I'M CONFUSED. I tried lowering my pinion w/ my 90T, and
everything got slower. then I switched to the stock 96t and played w/
pinion, but I still can get a fast top speed. nothing can beat that setting
I had originally. I might switch to 64 pitch. oh well. I'll take any
suggestions given to me. I'm buying a 14x1 motor so please give me
suggestions for that motor, on both 48 and 64 pitches
13. RS4 MT Gearing
14. Nitro MT gears?