treinhar

I heard that several have tried them at the Tour and Pro. Any comments on from those that drove on them as to how they work, feel and or wear compared to the 285's or 295's most ran last year.

I just switched to a RX8 for this season and I am trying to figure what I should order for my first set on this car.

ULLLOSE

iTrader: (1)

Seems to be some wear issues, or at least the early adopters are still struggling to find the right air pressure. One of the cars at the pro had to flip tires sat for PM runs due to cording on the edge, those tires were also used at the SD tour. The other showed signs of strange edge wear, but no cords. They seem to be plenty fast, who knows if they are better than a 295/285/275/245.

The SS GT3 seemed to work very well with them, and showed no signs of funny wear.

chiketkd

iTrader: (5)

Interesting. I wonder what pressures they ran as well as their camber numbers were up front.

P.S. Jason, can you elaborate on "funny wear"?

kjchristopher

iTrader: (1)

They seemed to be cupping right at the outside edge.

mwood

I believe El Toro can be a beotch on tires...particularly if you are trying to control sidewall profile and roll over with high pressures...don't ask me why I think this...

I wouldn't take the wear that Goeke/Bauer and Sipe/Thompson experienced as indicative of the "whole story".

TeamRX8

iTrader: (25)

says the guy who corded a new set of Hoosier tires at the San Diego Tour two years ago

mwood

No, we got through the Tour ok, on the less than big time grip of the SD asphalt...it was the sandpaper surface at El Toro that did that set of tires in. As you mentioned (later), we just didn't have the pressures high enough. I believe, between 12 practice laps at the Tour (25 second course or so), 6 laps at the Tour, and 26 runs at the Pro, we got about 30 "real" runs out of that set, I'd guess...ouch. Of course, for stock class BMW drivers, that would be a huge uptick...

TeamRX8

iTrader: (25)

I've never had much wear at ET, even this particular issue is only on the front outer corners, otherwise there wasn't much wear in general

I think a few setup changes will correct it, but didn't want to make them mid-event

SOLO_RX8

2 of mine corded after 21 runs. Half asphalt and half concrete.

Pressures were 42 front and 44 rear. And they were rotated after each event.

Something is wrong here.

SOLO

chiketkd

iTrader: (5)

Did you run a different hoosier size previously - if so which? How much camber do you have up front? How badly are they corded? Can they be flipped?

Cito

I would ask Chris H., but those pressures sound high to me.

I have had Hoosiers last 15 runs before cording and 150 runs without cording. I know I have corded them because of overdriving. They have also corded quickly when they were run more than your typical 6 to 12 runs in a day.

THese comments apply to 285, 275, and 245's...so I am a bit off-topic.

Zoom4Three

I have not run the 255's yet, but your pressures sound like a good starting point based on where we run the the 285's cold PSI with max front camber. I would need some additional info to determine what the potential cause maybe:

- Is 42 psi your cold or hot pressure ?
- Camber settings ?
- Were the runs made in the normal Solo2 sequence with at least 5 minutes between runs or were some of them back to back without much cooling time (like a test & tune) ?
- Where did the cording take place, shoulder to tread cap junction or ?
- Were the corded tires on the same axle or same side of the car ?
- How many miles on the car ? Have you checked for excessive control arm bushing or wheel bearing play ?

If you have a photo of the cording or prefer to contact me direct you can e-mail me at Trent@TireRack.com.

Chris H

SOLO_RX8

Chris thanks for jumping in here.

42 cold.

Camber is max front at -1.5 and -1.8 rear. S/A Koni's, usual BS setup.

Normal AX times between runs except for 4 runs on a test/tune course with about 3-4 minutes between runs. It was 42 degrees out and the tire temp's didn't even get warm to the touch.

Cord was on the outside edge.

Not on the same side of the car. And they were rotated front to rear between events. It was the rear's that corded when they went away.

Car is an '07 with 10,700 miles. It's like a new RX8, no issues anywhere.

I've run Hoosiers for 17+ years and never had them cord in 21 runs.

Previous car was a tire eating BSP EVO with 285's. I'd get 50+ runs on it and I never flipped the tires but should have.

No pictures because I was unhappy and just tossed them and bought 710's.

I still thinks something is wrong here.

SOLO

chiketkd

iTrader: (5)

I realize you rotated them front-to-rear, but the rear's showed cords first? During the 21 runs, did you have any spins in the car?

You said earlier that you ran on concrete/asphalt 50/50. How gritty & abrasive was the concrete surface? Were there any sections on the concrete surface where the car went into long slides?

jgoeke

Ron Bauer and I experience the exact same thing as SOLO_RX8. In our case, San Diego NT, 3 runs each with no real drama in the driving and the tire wear was astownding. We quickly realized the drivers front tire was wearing quickly after we each had just 1 run, and upped our pressures from 40 to 46 in an attempt to help, which it seemed to do. After the first day we rotated the tires front to rear and with the course running the opposite direction, this put the troubled tire now on the predominately inside rear. At El toro, we corded a different tire on the same outside drivers front.

While the camber was only about -1.3, in the front, this seems very unaccepable for wear. We had the tires re mounted inside out, and then after the 2nd and 3rd round of the pro, the "new" outside edge is showing the same cuping wear that leads to the cording.

I have been doing this for 22 years. I am the king of getting more runs from a tire than anyone. Just ask anyone who runs with me :-). I've never had a set of tires wear like this set has.

IMHO, this size tire or this particular hoosier tire is a very poor match for the Rx8, or the this tire in general has a serious problem.

GeorgeH

iTrader: (2)

chiketkd

iTrader: (5)

Good feedback Joe. While 1.3 degrees of front camber is on the low end, it shouldn't have such a major impact on tire wear on an A-arm car. So we can get the complete picture - what other A6 sizes have you run on your RX-8? How many runs were you able to get out of them before they were useless/corded?

ULLLOSE

iTrader: (1)

Joe was on 245 V710s before... Is edj still on the little 245 hoho? If so they seem to still be working very well for him.

mwood

Very strange...I'm able to get 90+ runs out of the 295 on an 8.5" rim and that's with a 3400lb car. I wonder if there's some construction issue with the early 255's? As I understand it (which is a stretch, 'cause I know dick all about manufacturing tires), the 255 is basically a 245 mold with some section width added...or something like that.

But, to be perfectly honest, the only thing I'm worried about is TeamRX8 deciding he's gonna have to hang on to the set of 295's he's promised me...

JK, I'm actually feeling the pain for those of you who threw down good money on the tires and then had them cord

TeamRX8

iTrader: (25)

maybe not for certain people coasting through the course but for the top RX-8 runners on Hoosier A6s this means big trouble on the outside front tire corners, especially running the soft OE front bar regardless of endlink hole position

I plan to stay with this size though. I believe edj was on them too, but will let him confirm for himself...


.

TeamRX8

iTrader: (25)

Did you guys have a melt down today? Couldn't get through by phone and even an email to that address bounced back.

chiketkd

iTrader: (5)

+1 and since, last I checked, I don't **** money, I'm starting to get some concerns about running the 255's.

I'll see what Harvey's feedback is like once he tries them, but the 245 Hoho's are my other option at this point...as I'm not a sasquatch kinda guy!
Ha ha. I deserved that. Drove @ nats last year like I was at a rain event. My co-driver is plenty fast, and getting faster. I definitely feel better about my driving this season.

S0l08

iTrader: (1)

I ordered my Konis today with about 2min wait.

StrokerAce

All three non-2009 rx8's at houston were on 255's (at least thats what the sidewalls said).

Zoom4Three

Yes - Phones and Internet went down at approximately 4pm EST. Not a good situation on a busy Monday or anytime for that matter.

Sometime technology is NOT your friend All systems GO today...

Chris H