I went to the track the other day for the first time, although have been driving for a while, and ran a 13.08 @113.56mph with a 2.314 60'. Thats crap. Good mph though? I Still have stock F1's and I know my 60's not to good but I know how to drive and my dad used to build/race prostocks. By the way the reaction was a .538 too. What should I expect from a set of 315 nittos?

 

I'm sure you know your 60' is horrible, but stock F1's are good for sub-2.0 60's with a decent driver. Learn to launch the car and you will be running 12.7's. It's all in the driving, and there is nothing wrong with your car.
Also, RT's don't influence your ET's.
A lot of rubbing if you don't have the right tires, and catastrophic tire failure if you smack a large bump and haven't rolled your lip.
I think 315's look cool, but are not practicle (especially if you go around curves ever with the stock panhard/LCA's). Besides, 275 width drag radials will be plenty for a car with as much power as you have, and they will likely have enough grip to show you how great the stock rear is on your car.

 

I know reaction time has nothing to do with ET, just thought i would through it out so you all don't think that i can't drive at all or am just a jackass.

 

If you put the 315s on the stock 9" wide wheels you won't gain as much et as you would if you used the 275s because the narrow rim width will cause the tread to bow in the middle and not lay flat. Less tread on the ground means less traction no matter how wide the tire is.

 

Thanks for the replies guys. By the way I have a set of 17x11 in the garage!