why 18'' wheels more popular on track?

andre12031948

I took my used 2012 base auto(1,200 miles) to Atco Friday night. Owned it for only 3 days but just had to find about traction/car.

My first completed run in a dry lane, 60' was 2.010 seconds & 13.137@106.12 1/4. At 1,500 rpm I let the brake go & at moderate rate stepped on the gas peddle. After that run, it looked like amateurs went into & over the watered ground & got everything right up to the stating line wet.

Even at idle or a bit more than that, my wheels chirped a bit & 60' & 1/4 times suffered. 60' 2.20's & 2.10's. I got the exact numbers in my post that I made Friday.

So if 2.00 60' can be done with stock base wheels/tires & leaving at only 1,200 to 1,500 rpm, why would I next spring have a problem doing 1.8's and better using drag radials??? It's an automatic All you need is a clean prepped dry starting lane.