Kanmer

I am going to NCM HPDE and just ordered 2 Kumho Ecsta MX for the rear of the car. These are NON runflats. I have GY runflats in the front. Will this cause any handling conflicts? I know all the scuttlebutt about GY tires but I am concerned with the runflats in front and the non runflats in back issue. TIA

Bob

rudyarias

You will notice the rear feel like its cutting loose into Dead Bear and turn 9-10 at Putnam Park.

VetteDrmr

1. Your front RFs are probably quite a bit harder than they were when they were new.
2. Assuming you're running stock sizes, I think you'll find understeer in all conditions: corner entry, mid-corner, and corner exit.

But, you'll still have a blast!

Have a good one,
Mike

yellow01

even if they brand new you will feel this in my opinion. The MXs have really amazing grip for a street tire when they get hot.

I have tracked on the gy emt and the MXs (never at the same time though) and the MXs are a much nicer grippier tire for track.

I think you'll be fine, but you won't handle at the 100% capability mark of the car.

rudyarias

For dry HPDE track applications, I found the B.F. Goodrich T/A KD to be (hands down) the stickiest DOT street tire. They are as close to a R compound as you are going to get. I don't use them for One Lap because in the wet, I might as well be ice skating.

yellow01

Yeah I've never tried those. The MXs were nice at $850 a set and I was quite pleased with that value. I got 3 full weekends plus a few random days before they got real hard (still have tread for continued street use). I've switched to R's this year - next weekend is my first time out, I can't wait (crossing my fingers for no rain).

rudyarias

Have fun!