haha, well I am glad to know I could fit my brakes on a 17x9, but its a different story trying to fit brakes under a 15x9 or 15x8. Its safe to say the RPF1s are not ideal for fitting big brakes on a miata.
I gotta say I love how boost_joose and 2Bit have been marked for negative props. |
Originally Posted by TheHeartBreakKid
(Post 828506)
yea me too. but i wonder if it would be a noticeable difference if the same size tire was ran all the way around but staggered rims size.
I will repeat myself: What benefit is there? People run staggered wheels with square tires on AWD cars because you have to run the same tire height on them to keep from frying the center diff, and running a mildly pinched tire on the rear keeps the tire height the same while slightly reducing rear contact patch to improve rotation/ breakaway characteristics. What benefit would there be in doing this on a RWD car? What tires would you run? Like Curly said, you shouldn't run a 225 on a 7" wheel. You might as well put a 205 on it, because that's all the tire you'll have on the ground. Sell your staggered wheels on Club Roadster, and buy something with a purpose. |
Originally Posted by vehicular
(Post 828724)
I will repeat myself: What benefit is there? People run staggered wheels with square tires on AWD cars because you have to run the same tire height on them to keep from frying the center diff, and running a mildly pinched tire on the rear keeps the tire height the same while slightly reducing rear contact patch to improve rotation/ breakaway characteristics.
What benefit would there be in doing this on a RWD car? What tires would you run? Like Curly said, you shouldn't run a 225 on a 7" wheel. You might as well put a 205 on it, because that's all the tire you'll have on the ground. Sell your staggered wheels on Club Roadster, and buy something with a purpose. |
Thank you Curly and Vehicular. Now i know that 225s are too big for 7s.
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Originally Posted by TheHeartBreakKid
(Post 828731)
Thank you Curly and Vehicular. Now i know that 225s are too big for 7s.
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Lol. Yes you can, and as Vehicular said it'll be ballooned to the contact patch of a 205. Or you can listen to Hustler, the majority of the time he's right.
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I run 225/45 RS3's on my 15x7 Kosie K1 TS and they work fine. Later this year I am hoping to upgrade to 15x9 6UL.
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Originally Posted by shuiend
(Post 828802)
I run 225/45 RS3's on my 15x7 Kosie K1 TS and they work fine. Later this year I am hoping to upgrade to 15x9 6UL.
hahha, you aren't the only one though. I think a know a few other miatas that run 225/45s on a x7. |
2 Attachment(s)
Originally Posted by vehicular
(Post 828261)
I've owned and abused a bunch of RPF1s myself, and have been in close contact with dozens of autocrossed/ track day-ed sets over the years, and have never, EVER heard of someone cracking one. In fact, the only bent RPF1s I've seen were on a THOROUGHLY wrecked S2000 that went end over end through a gravel trap. You couldn't possibly choose a tougher wheel.
I have absolutely beat the crap out of several sets of Enkie RP-F1 wheels for many, many seasons. So have several friends. I have yet to see one crack. These wheels are awesome. That said, I have had a couple of minor bends and one major, all 100% my fault and the dents were tiny compared to the damage I expected. I have seen cracked wheels, including 6ULs, Kosei K1's, and others. We had a Miata rollover at an event due to a cracked wheel breaking. High g-load right-hander with sharp bump @ the apex, outside left-wheel sheared at the spokes. Post roll-over inspection showed that several of that car's wheels had small, hairline cracks. I run Enkie RP-F1 (15x7"), Enkie PF-01 (15x8"), and 6UL (15x9"). All of these have been good to me. If RP-F1s came in 15x8 and/or 15x9 and allowed for bigger than stock calipers, then that's all I'd run. What ever you do run...check them closely. The cracks you are looking for are (hopefully!) very small. You don't want this happening to you... https://www.miataturbo.net/attachmen...2&d=1328146570 Attachment 33062 |
Originally Posted by 1993ka24det
(Post 828496)
ScottFW said big brakes like these (http://flyinmiata.com/index.php?dept...5%20%201990-93) wont fit on RPF1's, is there any more info on that
you can store them in yours for $600, plus shipping--lol |
Originally Posted by wildo
(Post 829541)
You don't want this happening to you...
Danger, Will Robinson! Danger! |
Originally Posted by wildo
(Post 829541)
We had a Miata rollover at an event due to a cracked wheel breaking. High g-load right-hander with sharp bump @ the apex, outside left-wheel sheared at the spokes. Post roll-over inspection showed that several of that car's wheels had small, hairline cracks.
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Originally Posted by wildo
(Post 829541)
+1. You don't want this happening to you...
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Its on a car during a rally, Breaking wheels isn't unheard of in such situations.
The car looks to be an EVO, EVO VII I believe |
4 Attachment(s)
Originally Posted by curly
(Post 829668)
You're going to tell us this story without telling us what wheels he was on?!?
No "before" picture, but here's an "after". PS. Hard Dog roll bars freakin' WORK! Driver walked away. First day wearing his HANS. https://www.miataturbo.net/attachmen...1&d=1328288654 https://www.miataturbo.net/attachmen...3&d=1328289074 Attachment 33261 Attachment 33263 |
2 Attachment(s)
they look like regular old NB 15x6s. The only other 5 spoke 15x6 was the enkei and the center doesn't look the same at all.
https://www.miataturbo.net/attachmen...ine=1328289636 https://www.miataturbo.net/attachmen...ine=1328289636 If you remove the center cap from the NB 15x6 (second picture), its pretty obvious. Matter of fact, I got a set sitting in my garage right now lol. Plus the lip on the enkeis is concave down, while the lip on the broken wheel is concave up (NB style). |
+1 for the above being an NB 15x6. I'm running those with SDrives right now for rain. Good to know they go pop...
I've read the easiest way to check for a cracked rim (other than visual inspection or phosphorescent dye) is to pull the tire off and lightly rap the rim with wooden object, like the handle of a hammer. If it rings like a bell, good to go. If it buzzes or clunks (or does anything other than ring) you should probably discontinue use. Any comments or other quick tips? |
I can't say its common knowledge that the NB wheels crack or break. I will admit they are the lightest of 15x6 wheels, not really causation, but it could be a factor.
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A local friend with an NB1 that gets autocrossed on the OEM 15x6 alloys with 205/50 street tires has cracked three of her wheels. Safe to say that that particular OEM wheel style was a little too light.
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Originally Posted by emilio700
(Post 830633)
A local friend with an NB1 that gets autocrossed on the OEM 15x6 alloys with 205/50 street tires has cracked three of her wheels. Safe to say that that particular OEM wheel style was a little too light.
I am surprised though, I couldn't find a lot of comments about this. |
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