What number tooth spur gear?

[NiroGuzzler]

I have a savage w/sirio .27 that I race ..I had stock spur gear in it for about a mounth(I'm surprised it lasted this long)..whats a good spur gear tooth number for racing? I race at a big track, but with alot of turns..and does it matter to change tooth number on my spur gear if I continue useing stock clutch bell?

heres a pic of the track..

 

[Esteban]

If you put an spur gear with a high number of teeth, that means bigger, you would have more torque (power) in your truck but you would reach a low top speed. while if you put an smaller spur gear (less teeth) in your truck, you would reach a higher top speed than usual but your trucks power would low down. you can still use your stock cluth bell with any spur gear.

 

[cvec7]

First, you need to decide if you are happy w/ it in it's current set-up. If the acceleration isn't as fast as you want, you'd probably want a higher-tooth spur, but if your not happy w/ the top speed, then you'd want the smaller spur....

Ahh...kinda reminds me of when I got my first nitro rc...the hpi rush, and I wanted to order a spur w/ as little teeth as possible so it'd go fast, I ended up ordering a Micro RS4 Pinion LOL. Had to send it back to hobby people once I found out there was no way it'd work...lol.

 

[redneckracer1979]

I run a 15/47 combo with my Mach 26 for racing and it is a fairly tight track but I seem to pull the gear great. Maybe try a 16/47 setup.

 

[bustedgears]

Personally I'd do all torque if all you do is run on the track (15/52)

 

[Ron]

Ask your fellow racers at the track for advice. I know when I used to race many years ago I would gladly give out advice on setups for the track I ran on.

Ron

 

[arawak420]

i run a 15/52 at the track. quick accel
and a 18/47 bashing. killer top speed.

 

[MAD-MAXX]

I Use 15/52 too. great for wheelies and such.

 

[Carbon_Savage418]

i use 14/52 and got mad low end but almost no top end

 

[fasda1]

I have the Siro .27 11 port, I run 17/52. The motor has tons of power and this set up seems to work for me.