997gt3north

- guys in the slick world always seem to run softer front compounds and harder rear compounds
- tire temps always show rears running much warmer than fronts

- what do you think, A6 front, R6s rear

- i'm about to order 19" Hoosiers as we speak and i'm really considering the A6s for the fronts

- i will be running 235/35/19s and the 315/30/19s

Paul

NJ-GT

I get 20-40 laps out of A6. After that their grip fades a lot, I do 4-8 laps on them per autoX event, good for 5 days. I keep them to use them later as practice tires.

I got 70 runs out of one set of rear A6 2 years ago. I have been told the A6 uses the R35 compound from the Hoosiers slicks, and the R6 uses the R45 compound.

The 235 A6 is wider than the 265 A6 on 19". I have all the A6 sizes in 19" except the 325, as I was testing them.

You should use the 325 instead. It is a wide as the 315, but taller, so it works better putting the power down, and you already have a short R&P.

A6 and R6 die from heat cycles not from wear (at least on my case), so running A6 on the front could get you have to dispose the front ones when the rear ones are at mid life, not a problem at all. Expect some oversteer.

997gt3north

thanks rad

sasportas

Paul,

Hope to see you at the Glen or NJMP sometime this season.

I agree with what was said about R6 vs A6. I know guys that tried the A6 all around when there were cold temps. However, both the A6 and R6 will heat cycle to death before you cord them.

R6 in the 235/35/19 x 315/30/19 have lasted me between 24 and 28 HC's. The heat cycles were counted when I ran a complete 25-30 minute track session. I can tell you that at -3.0 camber front and -2.4 rear, that I nearly always got close to cording the inside edge of the fronts, but the rears wore dead even and I always swore that they were only half gone. Don't be deceived, they just fall off the face of the earth at 28 HC's even if there is plenty of tread left.

As an aside. I have been running BF Goodrich R1's this season. 265/35/18 x 335/30/18. I have over 35 HC's (7 DE days) and the tread is only about half worn. They are slightly slower than Hoosiers, but come up to temp quickly which is a nice feature.

997gt3north

Hope to be at the glen late summer - work dependant

Hope to see you there

Paul

NoSubEDU

I saw a DP-ish car running A6 fronts and R6 rears at VIR this past weekend. I was curious about the setup but the driver was borrowing the car and couldn't offer much insight.

I would think you'd have great traction...for a while. As I understand it the A6 compound will heat cycle out quicker than the R6. (Half-life?)

Z06

If you like, come out to the next 6th Gear day..(always first Wed of the Month)
and you can try my fronts for the morning...A6 235/19.

997gt3north

- thanks
- will try and make it

paul

Mussl Kar

Two weeks ago I autox'd the weekend with NCR on Saturday, BMW club Sunday. A6s all round except the right front. I somehow took the R6 off and put it back on again. Took FTD with the Porsche club by my biggest margin ever, and took my division with the BMW club, and 3rd OA out of 100 drivers. Does this help? Or am I better at turning left and the R6 keeps me balanced?

997gt3north

So 1 R6 on the front right and A6s everywhere else is the ticket

I can see the guys at hoosier scratching their heads, wtf are these pcar guys doing?

NoSubEDU

LOL. Probably goes something more like this... "Figures..."