gearing for mm - RC-Monster Forums

meatzardd · **gearing for mm -** 09.26.2006, 04:49 PM

i just ordered the mamba max 5700 and i was wondering how i should gear this thing. im runnin it in a stampede with moabs. i would like my speedy/motor to run cool but with the max speed. ill be runnin 6 cell nimn cells. thanx for the help guys.

MetalMan · 09.26.2006, 04:53 PM

I think a 14t pinion should work pretty well with an 87t spur gear.

meatzardd · 09.26.2006, 05:17 PM

well right now i have an 81 tooth spur so what pinion do i need. 17?

Serum · 09.26.2006, 05:36 PM

No, more like a 12 or 13.

meatzardd · 09.26.2006, 06:40 PM

alright thanx

Serum · 09.27.2006, 01:49 AM

No problem. If you go up in spur, you need a smaller pinion to get the same ratio. and visa versa

crazyjr · 09.27.2006, 03:39 PM

I'm running a 16 or 17 pinion on my 5700 and the esc motor and batteries are around 160 when i get through a pack so the 14 might be good with the 87 and 12 good for the 81. I don't have them that small right now but its not hurting the performance. As soon as i get some smaller pinions or bigger spurs i'll report back on how it runs

Serum · 09.27.2006, 03:42 PM

Have you got a temp-gun for measurements? this is the ultimate way to actually gear your car the most efficient.

neweuser · 09.27.2006, 04:05 PM

I was thinking the 12 would be better too!

Serum · 09.27.2006, 04:11 PM

A tempgun never lies..

BrianG · 09.27.2006, 04:16 PM

Quote:

Originally Posted by Serum

A tempgun never lies..

Just curious, what do you have the emmissivity set at? (assuming it's an IR gun). I find mine to be inaccurate no matter what I set it to. I tried calibrating it against a thermistor-type temp sensor since the material and color has little to do with the reading, but I can't seem to get an accurate emmissivity setting that will work reasonably well across most materials (Al vs steel, anodized vs not finished, etc).

Serum · 09.27.2006, 04:23 PM

I totally agree. Even different colours act different (the purlple on the GP3300's can be like 65 degrees, while the metal is 40 degrees..

that's a pita. i try to measure on silver parts, that seems to be the most accurate.

Normally you use it as a reference, if you measure on one point, gear it different and measure it again on that certain spot, you know what the result is/was.