Originally Posted by Megan370z I cant wait to see the result of 10.5 +15 RPF1 on the 370z. Because with those 9.5 +15, I had to roll the fender and
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07-17-2013, 02:36 PM | #17 (permalink) |
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their's no way et15 18x10.5 is going to fit up front with any reasonably wide tire AND be used for track use without fender modification.
18x9.5 et15 is the same outside fender clearance i run currently which is 18x10.5 et28. And i run -3.2 camber. Ive seen some street guys run 18x10.5 et15 with stretched tire but that hardly counts as "fitting" especially under performance usage Last edited by clintfocus; 07-17-2013 at 05:29 PM. |
07-17-2013, 03:30 PM | #18 (permalink) | |
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I'll post pics as soon as I have some and what I end up doing. I just want to get the largest amount of rubber up front as I can, and run squarded up so I can rotate tires. If guys are running 20x10 +25 on a lowered car and 20x10.5 +30 there should be room to play with. |
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07-17-2013, 03:43 PM | #19 (permalink) | |
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anyway if this the case the OP must get the base brake OR go with the AP kit from what you are saying? The RPF1 will fit no problem, and good luck with the 10.5 +15 as Ive been saying , the 9.5 +15 is pretty much the only one that will work with some more neg Camber and some fender rolling. I always been taking about the +15 offset, since I always mentioned which spec im talking about. The others offset wont work unless you run spacer. Last edited by Megan370z; 07-17-2013 at 03:48 PM. |
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07-17-2013, 03:45 PM | #20 (permalink) |
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I'm no tire+wheel wizard, but just to aggregate and comment on some things people have said above:
I personally run 10.5" RPF1's with 285/35 square with no spacers and have had 0 issues with spacing/rubbing/hitting the wheel wells so far.
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07-17-2013, 03:54 PM | #21 (permalink) | |
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Which brake do you have ? |
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07-17-2013, 05:34 PM | #22 (permalink) | |
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18x10.5 RPF1 only come in et15 |
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07-17-2013, 05:53 PM | #23 (permalink) | |
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I almost want to doubt what GSS138 said about what he has !! hehe so my eye were probably playing games with me when I saw the top of the front tire were sticking out on the front fender which made me to roll them. maybe some suspension binding? when I first installed them on the car,, soo Im a bit disturbed learning this. bottom line is then I will try to get my hand on a 10.5 next year |
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07-17-2013, 06:07 PM | #24 (permalink) |
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I have a stock suspension and sport brakes, I didn't mention that they are 18" wheels-track only. I have no spacers, just hub centric rings.
I am good with tires, I know very little about wheels besides their dimensions and how much they weigh. If you want to know more private message Mike at corner 3 garage or if mike sees this post maybe he can comment. Mike is the one running the extreme speed promo in these forums that is endlessly bumped. :P He is the one that did my setup so he can answer better than I can. But yeah I have stock suspension, 18" x10.5" RPF1's, Hankook rs3's 285 square, sport brakes, no spacers and they work fine. Martin82 on these forums whom I track with once a month runs I think an identical setup and he has 1 way coliovers and cambers-not sure if he uses spacers or not though.
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07-17-2013, 06:13 PM | #25 (permalink) | ||
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Martin is on Enkei NT03 with 18x10.5 et30, no spacer front, and spacer rear (20mm). from my testing and research, et28(which i run) to et30 (what martin and what the Robispec 370 used to run) for 18x10.5 is ideal, since it pretty much takes up all the inside space it can before hitting the knuckle arm. I feel if you end up getting coilovers and as your pace gets faster, you will start to have rubbing issues with the et15 10.5s |
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07-17-2013, 06:21 PM | #26 (permalink) |
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Well turn 6 at Big Willow has put me in Dukes of Hazard mode before but only once or twice per day usually
and just to add some tireporn: http://imgur.com/ziFg8Xs
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07-17-2013, 08:09 PM | #27 (permalink) |
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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.
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07-17-2013, 09:10 PM | #28 (permalink) | |
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07-18-2013, 08:18 AM | #29 (permalink) |
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I run the 295/40s on one set of wheels that are 18x10 and one that are 18x9.5. No adverse affects and no feel difference between the two.
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07-18-2013, 02:44 PM | #30 (permalink) |
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