SCCA C Stock Discussion

[NYC BRZ]

Alright guys I'm finally picking a set of CS tires this week. Hankook RS3 V2 or Dunlop Z2. I spoke to Sam Strano (multi time SCCA national champ) and he is convinced the RS3 V2 needs a wider width that what we can fit on the 7" wheel to be effective. I had Z2s last year that I autox'd on and daily drove on and they were great. I plan on doing the same with the RS3 V2s. Thoughts?

[renfield90]

Originally Posted by NYC BRZ

Alright guys I'm finally picking a set of CS tires this week. Hankook RS3 V2 or Dunlop Z2. I spoke to Sam Strano (multi time SCCA national champ) and he is convinced the RS3 V2 needs a wider width that what we can fit on the 7" wheel to be effective. I had Z2s last year that I autox'd on and daily drove on and they were great. I plan on doing the same with the RS3 V2s. Thoughts?

Did Sam say why? At any rate, it is surface/weather/setup dependent.

[G_Ride]

Originally Posted by NYC BRZ

Alright guys I'm finally picking a set of CS tires this week. Hankook RS3 V2 or Dunlop Z2. I spoke to Sam Strano (multi time SCCA national champ) and he is convinced the RS3 V2 needs a wider width that what we can fit on the 7" wheel to be effective. I had Z2s last year that I autox'd on and daily drove on and they were great. I plan on doing the same with the RS3 V2s. Thoughts?

Like renfield90 said, it's surface/weather/setup dependent. What kind of surfaces and weather do you usually see for your events?

[Kido1986]

Originally Posted by NYC BRZ

Alright guys I'm finally picking a set of CS tires this week. Hankook RS3 V2 or Dunlop Z2. I spoke to Sam Strano (multi time SCCA national champ) and he is convinced the RS3 V2 needs a wider width that what we can fit on the 7" wheel to be effective. I had Z2s last year that I autox'd on and daily drove on and they were great. I plan on doing the same with the RS3 V2s. Thoughts?

If you're going to DD the same tires, Z2 all the way. RS3 like to heatcycle out, assuming the V2 is similar in behavior. Z2s also handle cooler and wetter wether better than RS3.

I LOVE the Rs3 but it like a lot of camber, and we can't provide that. When I go STX, RS3 will be my weapon of choice but I'm stay on Z2s while running Street

[DylanFRS]

Originally Posted by Kido1986

I LOVE the Rs3 but it like a lot of camber, and we can't provide that. When I go STX, RS3 will be my weapon of choice but I'm stay on Z2s while running Street

I agree with this.

[AustinTX]

I will report my thoughts between the Z2 and RS3 on a CS BRZ after the next event. I've been on the 235 Z2's for 3 months, and I'm switching to 245 RS3V2's.

[NYC BRZ]

Originally Posted by renfield90

Did Sam say why? At any rate, it is surface/weather/setup dependent.

Sam is convinced we don't have the wheel width necessary to stuff an RS3 large enough on there to be 100% effective. I agree that wheel width is this car's CS Achilles heel. I don't have the experience on the RS3 to say yay or nay. Unfortunately the RS3 V2 is too new and I can't find any reviews on folks who have daily driven on them.

[NYC BRZ]

Originally Posted by G_Ride

Like renfield90 said, it's surface/weather/setup dependent. What kind of surfaces and weather do you usually see for your events?

Pretty loose asphalt surface. The Z2s were great last year I've just been thinking about switching it up to try something new. I was going to go Rivals but I can't DD them. Supposedly the V2s are supposed to have a better operating range and are better in the wet than the V1s.

[renfield90]

Originally Posted by NYC BRZ

Sam is convinced we don't have the wheel width necessary to stuff an RS3 large enough on there to be 100% effective. I agree that wheel width is this car's CS Achilles heel. I don't have the experience on the RS3 to say yay or nay. Unfortunately the RS3 V2 is too new and I can't find any reviews on folks who have daily driven on them.

I guess the only way I see that happening is that the slightly softer sidewall is soft enough to ruin the gains you get by stuffing more tire than you should. Mr. Hale's test should be very enlightening.

[SeanRTR]

Originally Posted by NYC BRZ

I was going to go Rivals but I can't DD them. Supposedly the V2s are supposed to have a better operating range and are better in the wet than the V1s.

Why not? Z2's will apparently heat cycle out over time with street miles. I've not noticed a drop off in performance whatsoever in full depth rivals,.to chorded rivals. Those that think you're going to die if you drive rivals in the rain, are either fueled on estrogen, or just bad drivers in general. Daily driving rivals is fine, I don't get it.

[G_Ride]

Originally Posted by NYC BRZ

Pretty loose asphalt surface. The Z2s were great last year I've just been thinking about switching it up to try something new. I was going to go Rivals but I can't DD them. Supposedly the V2s are supposed to have a better operating range and are better in the wet than the V1s.

I've had two events on the RS3 v2 and so far it seems to be true about the lower operating temperature. I still don't know about Hankook's better wet traction claim. It's been very dry in the California Bay Area.

[rx3]

I think I read somewhere that different rim diameters are going to be allowed in stock class (next season)?
Has anyone considered to run on 16" instead of 17" rims?
A taller 245 tire on a 7" wide 16" rim would be less pinched and therefore possibly deliver more grip (as opposed to a 17" rim).
(I understand that the sidewall would flex more, but this could be overcome by turning sooner).

[neurokinetik]

Originally Posted by SeanRTR

Those that think you're going to die if you drive rivals in the rain, are either fueled on estrogen, or just bad drivers in general. Daily driving rivals is fine, I don't get it.

This is also true of the Hankook RS3, whether old or new version. Even at temperatures down into the high to mid 30's, and dry pavement, the old RS3s still provided significantly more traction than a set of Blizzaks, which is what I run the "other" six months out of the year. Rain does not become a problem until you've got them worn to a pretty shallow tread depth, but that holds true for any tire.

At least they don't have to be shaved to not self-destruct during autocross or track time, that is what makes for a bad daily driver tire, IMO.

[DylanFRS]

Originally Posted by neurokinetik

This is also true of the Hankook RS3, whether old or new version. Even at temperatures down into the high to mid 30's, and dry pavement, the old RS3s still provided significantly more traction than a set of Blizzaks, which is what I run the "other" six months out of the year. Rain does not become a problem until you've got them worn to a pretty shallow tread depth, but that holds true for any tire.

At least they don't have to be shaved to not self-destruct during autocross or track time, that is what makes for a bad daily driver tire, IMO.

Agreed. Some people don't seem to understand that there is a difference between optimal grip on an autocross course and adequate grip for driving on the street.