Tires: Rotating weight vs radial construction

[ALMACK]

Ed:
So the Goodyear rears have a total of 10 lbs more rotational weight and slowed the car .04 sec. ?

Good info there.

Since I have a 4 cyl. car I am looking at going to a shorter tire and a taller gear in the lighter classes I run. I'll keep the 4.56 rear and 30" slicks for the heavier classes.
I am hoping to reduce my rotational weight. Every little .01 counts.