Quote:

wow,,you guys run low tire pressures compared to what i am used to.
I was running 14lb,,,,but dropped to 12 recently,,,maybe I need to experiment a bit more,,eg 11 like 440jim.

never considered running less than 10,,does the car "wave" around at the high end of the track ?

I run tubes in mine,,,fyi,



There are lots of factors for tire pressure. For example:
Car weight (heavier = higher pressure)
Tire size (smaller = higher pressure)
Launch torque(higher = higher pressure)
Chassis setup, rim width/tire width, weight distribution, weight transfer, instant center... (depends)

etc.