IRVINE 20 Pylon Emgine!, what can i put it in??
A tuned pipe...? They are not allowed in C20 racing...
Is it a real pipe or a tuned muffler?
Compression on these engines is set for running on FAI fuel...that is 20% castor and 80% methanol.
You could use up to 10% nitro, but that is the absolute maximum, and it really isn't required...