Originally posted by picco007
John,
Thanks, well this past weekend I ran a 10 x 2. Our track is 135 to 150 in by 50 to 65 feet. I ran a 21 and 22 pinion and a 100 t spur and I had to baby the throttle almost all race to make run time. I could be fast but then I would dump. Since I'm running a 10 x 2 I have to push it a little harder than the guys running 9x 2's......So understanding rollout may help me....
So I may have to get some info from you. Thanks.
Picco007,
As you know I'm running a 9X3 at 34-35mm rollout. One thing that could be causing your runtime issues is rear tire size. I think your tires last week were a little big and even though you adjust your rollout there is still too much rotating mass. As you tires get smaller so does the weight and run time goes up a bit.
JohnB is right, some are just easier on the throttle. The more you run the car the faster you will get believe me. Your not the only one with runtime issues
Hang in there
Paul