BRYN
esc
which viper have you got?
best one on site advises 9t limit / bottom right
http://www.mtroniks.net/products.asp...ontrollers.htm=&
Tamiya Plugs
no good on 8t I'm afraid
Ratio / hot bodies d4
what pinion/spur are you using?
what's the final drive ratio for this car?
Motor
is it newly skimmed or burnt brushes & comm?