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-   -   Tire size question (https://www.miataturbo.net/general-miata-chat-9/tire-size-question-39769/)

triple88a 10-03-2009 02:03 AM

Focus on the tire material man, i had my wrangler with 325s on there and i could do a brake/gas burnout at the same time with the fairly stock motor (intake, exhaust, bored out throttle body.. few other minor mods). I could even burn out all 4 in a straight line....simply those tires sucked. Drove around for 15k miles, didnt see a mm of wear on them

Bought them with 1/2" of thread, sold the vehicle with 1/2" of thread on em 15k miles after :)

pitcrewguy 10-03-2009 09:57 AM

Got the tires ordered and on the way Here's Sue's time from her first autox in the Miata, not the fasted as you can see but she was the fasted lady by 5 seconds!

Top Times Of Day Time Class # Driver
Raw time 45.785 F125 71 Marc Segal
Pax 43.072 BSP 328 Aaron Godwin
Stock 54.106 SS 11 Tom Skaggs
Street Prepared 50.142 BSP 328 Aaron Godwin
Prepared 53.454 EP 09 Marlon Tecson
Modified 51.942 DM 34 Eric Waugh
Touring 52.665 ST 50 David Hironaka
Street Modified 50.737 SSM 97 DOUG ROWSE
Kart 45.785 F125 71 Marc Segal
Stock Ladies 63.591 SSL 14 Barbara Kostelaz
Street Prepared Ladies 63.412 BSPL 18 Lindsay Totten
Street Modified Ladies 57.623 SSML 85 SUE STODDARD

magnamx-5 10-03-2009 11:48 AM

hell yeah

Toddzilla 10-09-2009 12:57 PM

Are 225s bowing out over a 7" wheel?

I've got some rota 15x7s and I want to go up to a 225/45/15, but the 205s on there seem to be a good size for the 7" wheel.

BoostedR 03-27-2010 02:51 PM

Sorry to bring back a old forum but I rather do this than start a new forum. What do you guys think about Running 225 on 17x7 wheels.

mgeoffriau 03-27-2010 03:19 PM

forum != thread


17x7? Why? What car?

FRT_Fun 03-27-2010 03:23 PM

17" is too large. Go 15 or 16. Also:

MiataTurbo.net/forum is a forum.
This is a thread.

Joe Perez 03-27-2010 04:07 PM

Oh, you wacky guys...

http://img40.imagefra.me/img/img40/2...km_931e917.jpg

But yeah. 17x7s would go great on a late 90s Corvette. The Miata, however, is pretty sensitive to unsprung weight, and your shocks will thank you if there's at least a little bit of sidewall on the tires.

Long story short: It can obviously be made to fit, but it's not an ideal choice from a handling or ride quality standpoint.

BoostedR 03-27-2010 10:07 PM

Well The 17's on my Miata or work emotion which are forged wheels my wheels are lighter than the 15's on my civic. Only way I am downgrading to 16's is if I come across a set of Te37's or Ce28's in bronze.

Joe Perez 03-28-2010 12:24 PM

Well, then it's pretty much decided. You asked what we thought about it, we think it's a bad idea, and you're doing it anyway.

Good luck with that.


Interestingly, Work doesn't see to list the weight of any of their wheel at their website. Always the mark of serious manufacturer, no?

From a Mitsu forum, I find the weight on the Emotion 11R in 17x7 quoted as 18.4 lbs, from a different forum, I find the XT7 at ~20 lbs. Well split the difference at just call it 19 lbs.

I'm having trouble finding a good tire in 225/(n)-17, where n is any number that yields a decent OD. TR has the Yoko S-drive in 225/35, but those suck. The next step up (225/40) is available in the Hoosier A6 and R6 (which I don't think you want) and then you get to 225/45, which seems to be where the action is. This size is available in the RE-11, the RE070, the Star Spec, the R-S3, the R1R, the AD07, etc. Average dia is about 25", and weight seems to be running in the 25-26 lb range, on average.

Ok, so you're at ~44.5 lbs for the wheel and tire package, and you're running a size that the car just isn't going to like from a geometric standpoint.

By comparison, take a common 15x7 wheel like the Enkei RP-F1, which is 9.8 lbs. Wrap it in a 225/45-15 Hankook R-S3 (22 lbs) and you're at 31.8 lbs (12.7 lbs less per corner, a 28.5% reduction) and you also have a more favorable geometry to boot.


But you won't do it- you're too cool to be rockin' on 15s! :D

FRT_Fun 03-28-2010 12:41 PM

Never really understood what was so wrong with 15s...

http://img687.imageshack.us/img687/640/206fk.jpg

But then again I haven't been tainted by any of the other .nets.

BoostedR 03-28-2010 12:48 PM

Well my original question wasn't weather 17's will fit or should I put 17's on my car. My question was how would 225's fit . The car came with the 17's, my friend has the same suspension setup as me with 15 SSR's and I can't feel any difference. I would be willing to down grade to 16's but they would have to be Works, or Volks. By the way I plan on running Star spec since they are dirt cheap.

FRT_Fun 03-28-2010 12:52 PM

Well, why not sell those 17s, and use that money for 15s or 16s. Probably save on tires too.

Also why only Works or Volks??

I see some 16x7 +35 on their site that aren't half bad. No weight listed though.

BoostedR 03-28-2010 01:00 PM


Originally Posted by FRT_Fun (Post 546085)
Well, why not sell those 17s, and use that money for 15s or 16s. Probably save on tires too.

Also why only Works or Volks??

I see some 16x7 +35 on their site that aren't half bad. No weight listed though.

Because they are relativity cheap (here in japan) and they are good wheels. I been through over 5 sets of works and volk wheels and they take abuse.

FRT_Fun 03-28-2010 01:03 PM


Originally Posted by BoostedR (Post 546087)
Because they are relativity cheap (here in japan) and they are good wheels. I been through over 5 sets of works and volk wheels and they take abuse.

Oh man so you got all that JDM tyte shit. JDM clothes, JDM food, JDM shoes!

Well either way, if you are going just on looks, and you enjoy the 17s more power to you. Seems to be a lot of :hustler: going on in this thread anyways.

BoostedR 03-28-2010 01:09 PM

Thanks for the help Joe Perez and taking the time to write all that to help me out.


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