Wheel Size Effect

[jim_howard_pdx]

I will make this easier, knowing you want to drag.

Buy Hoosier brand autocross tires if you plan on driving in the rain and need a sticky tire.

Buy Hoosier brand DOT approved Street Slicks or M/T Street Slicks if you want to race but need to drive the car to the track. Buy M/T Slicks (I prefer the crinkle wall for better launch on a heavy car) if the car is trailered.

Don't worry so much about the aspect ratio. I prefer to go with the tallest slick I can fit under the car without jacking up the suspension. Then go the tallest gears to get you the rpms you want at the quarter mile trap area. Go to the "ANALYZER" on the purple menu bar to plug in the tire circumference, your HP and it will tell you what gears to run.

With my engine, I will pull an 11.9 Quarter with 4.30 gears. But with a C-4 transmission I could not live with the engine RPM. My plan is to go with a Doug Nash or Tremec or an AOD if I decide to keep the ol slushbox style tranny. I want a 5 speed because my car is primarily built to embarrass Corvettes, Porsches, and BMW's. And when I say embarrass, I plain wipe the smile off their smug faces. I can beat a new vette by 20 to 30 car lengths to 100 MPH. That is as fast as I will drive on the street. I do the same to new Cobra 4.6 cars....sorry Ford Dudes......