Flares and wheel size Options

[ottox914]

Friend of mine and I are building a EMod 914. Class rules are 2.0 and above for motor, and 1500 min. wt. We have located a car with a well built 2.4 4 cyl, 2% or less leak down on all cyls, close ratio LSD trans, already stripped and caged, about 1650 pounds, all steel body. Currently has rabbit flares and runs 7" fuchs on pure slicks, 7" cookies for rain.

It needs more rubber.

We'd like to go 16 x 10" or 12" rims all around, and run some pure slicks. No D.O.T. tires here. Wheels will be 3pc, build to whatever offset is needed. Would like to keep the car as narrow as we can, and the tires as wide as we can.

Question of the day, how big of a rim/tire will the "GT" flares swallow up? Who else has experience w/other flare/wheel set ups? We could go bigger, to a GT2 flare set, and have the car look a little like the "Rudy" car on the Otto's of venice web page, except in speed yellow. That should swallow up 12's, as that is what the Otto's car runs, and these are the flares on the Fordahl/Leeds 914 that runs 10's. They need to run 10's for class track width limitations.

Can there be such a thing as to much rubber for an auto cross car? I could see on a road racer there would be a point of diminishing returns with aero considerations, but for a pure auto x car? Any advice from those who have been there, done that would be welcomed.