gearing advice needed

[dean76]

hi
i run a schumachercat 3000 4wd buggy
it has a gtb 6.5r novak system in it,what geraing should i be running for a small in door track?
the car has a 90 tooth spur and the internal ratio of the car is 2.
currently i run a 16 tooth spur giving an overall ratio of 11.25 ish (im not too good with maths) is this right or should i drop it a little lower?
any tips much appreciated

[dean76]

sorry i meant 16 tooth pinion............ doah........

[Stormbasher3100]

For the 6.5r novak recommends a ratio of 10.5-11 in an offroad buggy. So this means that you can actually add one tooth more on the pinion to get a final ratio of 10.59:1 and that would be much better for your application.