[MatthewAMEL]

I went with the ECF in 295/315 on the Apex SM-10's for track days.


Going to see if I can get more days out of them than the SC3's.


I'll be using them for the 1st time at the Sebring TT in April.

[Gbrownzl1]

I'm going to run these in 315/325 on my stock zle wheels for cota in May. Anyone think I'll have trouble with the 315 up front?

[MatthewAMEL]

Originally Posted by Gbrownzl1

I'm going to run these in 315/325 on my stock zle wheels for cota in May. Anyone think I'll have trouble with the 315 up front?

Word is they tend to run a little narrow. I have nothing to back this up but I think you'd be fine up front. 305 vs 315 is .4"


You could go look at the Tire Rack spec sheet for the 305 SC3R measured width and the 315 ECF width.

[Mountain]

Originally Posted by MatthewAMEL

Word is they tend to run a little narrow. I have nothing to back this up but I think you'd be fine up front. 305 vs 315 is .4"


You could go look at the Tire Rack spec sheet for the 305 SC3R measured width and the 315 ECF width.

Same from what im gathering: the ECF runs more narrow. In a way, that is OK being the endurance compound it is in respect to mass vs heat-up.

[Gbrownzl1]

You are right it's only .4 bigger so should be good to go. Thanks man.

[ZRacerLE]

Originally Posted by Gbrownzl1

I'm going to run these in 315/325 on my stock zle wheels for cota in May. Anyone think I'll have trouble with the 315 up front?

Going to run the same setup for the first time at MSRH on March 12/13. Hoping these will be good practice tires that hold for several days.

[IntegraR0064]

Really interested to see how these perform relative to SC3 for time trial use in 200TW+ classes. Is anyone aware of tests on a somewhat heavy car yet?

[ZRacerLE]

Originally Posted by IntegraR0064

Really interested to see how these perform relative to SC3 for time trial use in 200TW+ classes. Is anyone aware of tests on a somewhat heavy car yet?

You may have seen this one:
https://grassrootsmotorsports.com/ar...-buyers-guide/

Looks like they'll be a little slower than the SC3s, but handle heat even better, i.e. our heavy pigs. Going to try them out next weekend.

[noobsquared]

Originally Posted by MatthewAMEL

I went with the ECF in 295/315 on the Apex SM-10's for track days.


Going to see if I can get more days out of them than the SC3's.


I'll be using them for the 1st time at the Sebring TT in April.

I just got a set of SM-10 wheels for my SS 1LE as well. Do you have to make any modifications to the wheel wells to run 295/35 and 2315/30 on 19x10 and 19x11 wheels? I’m looking for tires and so far looked RT660, ECF and RS4s but having DWS06+ for daily wheels, I’m wondering if there are the best bet. Have you put yours on? Is your car 100% stock?
Thanks!

[RoaringV8]

Any feedback from anyone running these on track yet?

[ZRacerLE]

Originally Posted by RoaringV8

Any feedback from anyone running these on track yet?

Nothing here. Sold the car and bought a race car before I got to run them on the track.

[Corbs09]

Really hoping someone runs a 315/325 or even 315/345 to see if these are really viable for our cars. I am sure 315/325 would work but I am curious how it looks on the tire and if it will be too bulgy.

[ZRacerLE]

Originally Posted by Corbs09

Really hoping someone runs a 315/325 or even 315/345 to see if these are really viable for our cars. I am sure 315/325 would work but I am curious how it looks on the tire and if it will be too bulgy.

315/325 looks fine

[ZRacerLE]

Hope this helps (315/325)