Greg Fishman

Look again. They make a 225/40/18.

Can't answer your other questions with any authority but will guess you will need to roll your fenders.

Kristoffer

I saw that but they don't show any specs for them so I assumed that they didn't make them!

Greg Fishman

The new model is not out yet, I guess they are just showing what will be available. If you want tires today look at the R3S03's(the old model line).

Edward

Quote:

Not tried [the RA1's] on my Porsche but I have driven Spec Miata's with them and they are great tires. I know guys that use them as their track/practice tires and love them. They just need to be worn in before they get fast. Great rain tires in full tread also.

If I may relay an opinion of a friend of mine who is very successful in SCCA ITA/ITB --1sts and 2nds regularly, a few track records, and won at Thunderhill (regional championship, I think) a few months ago. He, too, swears by the Toyo RA1. Shaved for quals and races, full tread for rain. He tried to get me to get a set, but my driving capacities are soooo far beneath his, and I'm cheap , that I simply went back to another set of Victoracers, which suit me great (again, at my abilities). Sorry if this is third-hand info, and he doesn't pilot a 911, but think of it as another data point from someone with considerable experience with driving, tires, tracks, and from someone that I trust. .....FWIW

Edward

Mike in Chi

The new Hoosiers are supposed to last much longer while maintaining their grippiness, and their cost advantage.

(this from a tirerack guy.)

Kristoffer

I still don't know about offsets. If I go with a 8.5" what offset do I need? If I want a deep dish how do I figure out what offset I can use. I'm so confused!!!

kary993

I know I have come in late on this thread but wanted to confirm some things already stated.

1. R1-A's are a good tire. Last a good amount of time. People tend to use them to learn a track (practice only)
2. Hoosiers are much faster than R1-A's. Use them for qualifying or the race or time trialing. Much better than Cup's as well.
3. Cups are very dangerous if you do not get plenty of heat in them. This year at Laguna a guy in a boxster S left the track coming down the hill because he was not used to the tires (Second session first lap of the weekend). He was not happy. I have also seen from others (rennlister's too) that their wear on Cup's given the cost was really poor. Much of this does depend upon your driving style however. Your mileage may vary.

Kristoffer

I just spoke with Wheel Enhancements. He confirmed I need 8.5" to fit hoosier's 245's! But the bad news is he said I would need to roll my fenders to use them As much as I want them I don't know if I want to roll my fenders on what is still my street car!!

Greg Fishman

Kristoffer,
Of course the guys at WE are not going to tell you to do something that is not specified by Hoosier. What I was telling you is that you can fit the 245/35 and not have to worry with rolling fenders, etc. You just won't get the full benefit of the extra width.

ApexL8

I talked with my SCCA racer friend again yesterday. I thought he had said he liked the new Hoosier R3S04 better than the older R3S03. What he told me yesterday was it was they were about the same, but the 04 was supposed to last longer. Also, for the same nominal tread width, the footprint was actually wider on the 04.

kev

Kristoffer,

If you get aftermarket wheels from one of the popular companies, I'm sure they'll have someone that can advise the proper offset for you.

FWIW, I just had my fronts upgraded from 8" to 8.5" and I went with a 47mm offset. My car will soon have coilovers and 2.5 - 3 degree negative camber. I have K-28's and don't anticipate fender rolling in the front (yet to see).

Kristoffer

Greg I sent you a PM!

Glen

Well I guess I have to pipe in here. The MPSC's were far superior to the Hoosier's in a DOT tire application for track use. They gave me an absurd amount of heat cycles and always came back to me as far aas grip. The key was to scrub the crap out of them on lap one and I do mean aggressive scrubbing. They were just a few more $'s than the Hoosier and gave 5-10 times longer wear. On a different note I would not let anyone shave or heat cycle my tires. i prefer to use up the heat cycles and tread depth myself, Thank You... If anyone wants free heat cycling or shaving I will be glad to do it using my Cup car....

Glen

Kristoffer, You can run stock boxster rears on the front as an 18x9 as long as You are running 2.25 inch dia springs. Stock spring diameter will not allow it. I ran 265's on the front on 9's with no rolling using the smaller springs. PSS 9's are smaller for example as are SuperCup suspension etc...

David K.

Do Not run the 285/30/18 Hoosier R3S03 on the rear of a 911 unless you will run a minimum of 42 psi hot. I like to run 36 psi hot and if you run this pressure the 285/30/18 shoulder WILL FAIL, they split. It happened to me and others see this http://www.hoosiertire.com/pbP28518.HTM . I run the 245/35/18 & 275/35/18 Hoosier at 36 psi hot on my RS America. The new R3S304 has the same shoulder construction as the R3S03 so the new 285 may fail in the same way. The steel belt replaced the fiberglass only in the tread area in the new tire. I run 8 x 18 and 10 X 18, the 8" is ok for the 245/35/18 per Hoosier.

Last year I ran a 2 sets of MPSC in 17" (225/255) and 18" (225/285), They only work in hot weather and understeer a lot and have poor braking. I will be sticking with the new Hoosier and my try a set of Yokohama Slicks. I am still looking for a good rain tire I us to run the Pirelli P Zero C. I am looking at the Pirelli Corsa or the Dunlop SP Super Sport Race anyone know anything about them?

My RS America