sojim

I'm going to autocross my stock 92 vette in a street tire class next year. The basic rules are I have to use stock or stock size rims and the tires have to have a wear rating of 140 or higher.

The best recommendation to date is the Falken 615 in a 275 40 17. Anyone else have an opinion or suggestion?

TIA

Barbara_S

I found Kumho MX's were good for street and autocross - I now have sumitomo HTR ZII's as a street tire and if I didn't autocross with race tires I'd probably use the sumitomo's. They've got a nice feel.

Gordy M

I did some back to back testing with the Falken and BFG KD's and the 615's was almost 1/2 faster on a fast (Grissom) 50 sec course.

c4cruiser

For the money, the Kumho MX at their 220 treadwear rating will be the best tire. Although I run Hooiser A6's for autocross, I do use my MX's on occasion for both autocross and track days. The dry grip is great for a street tire and they will let you know when they are about to lose grip. If you can get them hot, they work great!!

While the MX has great dry traction, I would hesitate using them at high speeds in the rain. General street use and freeway speeds in the rain are not a problem, but anything over say, 100 in the wet might be scary.

blkc6z51

sojim, how are you going to do that, your never home

sojim

, but when I am home I don't want to spend a couple hours changing tires.

AUTO_X_AL

A guy in our reagion runs goodyear GS-D3's on a early/mid 90's C4 and is very fast on them. I am not sure of size.

toolman44092

The Kumho MX's are good and less expensive than others. If you want to spend a little more, the Good Year Supercars are an excellent dry tire (better than the MX's). They come stock on C5 Z06's.

blkc6z51

Yea you are getting old

TedDBere

That's why I bought a trailer!

vms4evr

RT-615
I'd take those over Kumho MX. I ran the MX on my 92 coupe for AX and was never impressed. But most people seem to like them.

MySR71

These might help:

http://www.tirerack.com/tires/tests/...lay.jsp?ttid=3

http://www.caranddriver.com/features...the-tread.html

Unfortunately, they don't test the Falkens.

sojim

Now I just have to make a decision on what to run next year

Cashmo

Sorry, no personal experience but I'm told the Kumho MX's are less prone to overheating compared to the Falken's. Also, shaved MX's are noticeably faster than non-shaved.

Jeff