Reply To: Fuel / Oil Ratio

[Curt Kistler]

We ran a 24-1 ratio in the 80 class with castor oil. Anything greater than that has a tendency to foul the plug, however, with the temp’s being in the high 90’s Tim’s ratio may work better for bottom end lube on test and tune days.
On race day with fuel being one of the tech issues, 24:1 would be in line with the rest of the class, and the motor will bark like a mean dog.