Spur gear and ratios...
I think I need to reduce the ratio on my DB-01, and am concerned about find a ratio that works. Currently running a Associated 87T with a 18T pinion powered by a MM 6900 on 2s, and the motor's getting hot at the end of the run. The tyres (Pro-Line Dirt Hawgs) are ballooning severely leaving me with very little traction and control once the car gets up to top speed. The stock 91T spur I have is slightly off-centre and wobbles. Should I just by another one and hope that it is centred?
In the stock motor mount the smallest pinion I can mount before the gear-meshing is off is about 17T with the 87T spur in place. With the 91T spur I might be able to get a 14 or 15T in there.
Any help would be appreciated, especially if you've been in this position before.
Thanks in advance.
FC
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