295/35/18 on 9.5" wheel

Sh0velMan

RPF1's don't clear the...ohwait you have base brakes...

__________________
Buy My Car! | Build Thread

Megan370z

the +15 offset does clear the OEM BBK and my AP Racing BBK
it wasn't the case with the +30/38 though

__________________
Megan Journal *Click Me* ....................One Man Team Motorsport *Click Me*

clintfocus

yeah et12 18x10.5 would be really aggressive and prolly rub under track load

how much front camber do you run and what size tire?

Megan370z

The front are 9.5 +15 on 275 tire.

I had to roll the front fender to safely avoid rubbing.
The front camber was like -2.7 (track setup at that time )

__________________
Megan Journal *Click Me* ....................One Man Team Motorsport *Click Me*

clintfocus

Ahh gotcha i misunderstood, thought you meant you were running 10.5 et15

chrischhorn

HEY!!! I'm workin on that ok lol. With only autcross out here in Hawaii, a BBK upgrade is on the bottom of my list of things to do. I upgraded the pads to Project MU HC+800 and I think that will be more then enough for just autocross. Also remember our average course is 35 to 45 secs so short courses also.

__________________

R.I.P. 8/01/13 1SlowZ
One day I'll have another....

synolimit

Rpf1 will clear diameter wise but high offset need a spacer. I have a +45 with a 20mm spacer. 15mm would have worked for a +30 overall but I didn't want to do the work of installing the longer studs.

OP rule of thumb is dont go over 20% width. A 9.5" wheel can support a 289mm tire and be fine.

Stock suspension and with a iPhone and a level I got -0.9 front left, -0.5 front right, -2.1 rear left, -1.5 rear right. Fronts stick out but I need -3, -2 camber to pull them in and get a good track number. Fronts 9.5" +25 on 255/40 and rear is 10.5" +15 285/35.

__________________
13 370z-

chrischhorn

255 is not enough tire under heavy braking load. Thats what I'm on now. Going with a 275/35 and 295/35. Hoping TireRack gets my tires in and ships them out tomorrow! Then Happy B-day to me!!!

__________________

R.I.P. 8/01/13 1SlowZ
One day I'll have another....

IMWEZL

Chris you probably already ordered them but Costco in Waipio has pretty good deals on RE11s if you like them and they work for your size.

My only concern with Hoosiers is that you probably need more seat time with street tires before you can take full advantage of a set of race slicks. Most of those guys auto-x with us in Hawaii region have been doing it for decades. Heck, I want to say there are at least 5-8 National Championship drivers in the field. My point is they make it look easy on slicks. Learning on street tires for 1-2 season will work out any bad habits and make you much faster (1-2 seconds) on slicks.

chrischhorn

Jay, I work at the Kapolei Costco Tire Center My only problem with the RE-11's is the max rear width they offered was a 275 and I just wanted a little more. The BFG Rivals are actually a street tire but they are VERY close to a R-Compound. I won't be going with slicks for quite some time. Avery tested between the Rivals and Re-11's on Sunday in his 2 Miatas and he actually consistently ran a full second faster on the Rivals then the RE-11's. Obviously he is one of those super skilled vets that you are talking about so I don't expect as large of an increase. I actually feel pretty good as my 1st 5 events was on All season tires lol. Just gonna step it up to something stickier and see where it takes me

__________________

R.I.P. 8/01/13 1SlowZ
One day I'll have another....