waddisme

Is it best to run the better tires up front or on the rear? Was a thread a couple of years ago, but I cannot remember. Car has 520rwhp if that matters.

Experiences?

Bill Dearborn

Always run best handling tires in the rear. Otherwise you can get a massive unexpected over steer when the front grips going into a turn and the rear doesn't.

Bill

SouthernSon

What he said! You don't want the rear end to come lose with fronts holding hard.

X25

But fronts usually get done sooner, so unless you run square, you might need to end up running newer rubber up front. Just be careful until you know how it feels (balance, etc.). ... Or you can just replace all four : )

waddisme

Running square so that works for me.

Kubs

I must be in the minority here. I would rather fight a loose car than a tight one. I always put the best tires on the front. Know that going into a corner and be prepared for what you know will happen. Better tires in the back will overdrive the fronts and just make it push all day.

Olitho

I have never run new grippy tires on one end and not the other if you can believe that with all the racing I do.

But a contrarian idea, if this is a square setup I would think I would mount the two new tires on the side of the car doing the most work on that track.

X25

Wouldn't that drive the differential nuts since the diameters would likely be more off than they should from side to side? These are not race cars, after all..

waddisme

Interesting thought. So like at VIR and RD ATL where I do most of my tracking, I would want them on the left side? I just did Sat and Sun at VIR, so I would have had plenty of track time to test that.

Bill Dearborn

You can compensate easier for over driving the fronts than compensating for over driving the rears.

Bill

heavychevy

I agree, and have done this personally. If your car doesn't turn there is nothing you can do, you kill your time. If your car doesn't put power down, you coast the turn an feed throttle in on exit or even point and shoot. It will be faster that way.

NASCAR314

Not such a crazy idea, I do this all the time on autocross courses, I know track racing is different, but some autocross events have 10 left hand turns and 3 rights all under 70 mph on a flat track, so in that situation, it makes perfect sense.