Originally posted by ziggy12345
If thats the track you run on your engine must rev to about 120,000 RPM!! I get max revs 2/3 the way along our straight and its around 130ft long.
For about a 150ft straight the max gearing ratio you have will not be enough. thats 45t spur. 27t pinion and 39t bevels. You will need to go to 28 pinion or even 29. This brings you to the same gearing as an MTX-3
Aldershot is 150ft, I use 26/45*39 for the heats, and may use 27/45*39 if I want to try a 10 minute pit free run, but there again I run on rubber so my wheels stay larger at around 61/63mm.