How much time do you give up running 225s on a 8" wide rim instead of a 9"?
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From: Naperville
How much time do you give up running 225s on a 8" wide rim instead of a 9"?
15 X 9" vs 15 X 8". What kind of time differences. Are there other reasons to run a 9" rim other than time? such as wear or how the car feels?
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ALL OF IT
No but seriously, can you get any more vague than that?
If you're not trolling, go check out the 15x10 6UL thread, I'm pretty sure Sav and Emilio mention the difference between 15x9 vs 15x10 as well as 15x9 vs 15x8
I'm also certain we've had at least 2 other threads about this same topic in the wheel/tire section.
No but seriously, can you get any more vague than that?
If you're not trolling, go check out the 15x10 6UL thread, I'm pretty sure Sav and Emilio mention the difference between 15x9 vs 15x10 as well as 15x9 vs 15x8
I'm also certain we've had at least 2 other threads about this same topic in the wheel/tire section.
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Joined: Jun 2006
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From: Republic of Dallas
225s on an 8 feel like ---- on the track with tire-flex, I'd rather run a 205 on that wheel, I'd probably be faster from comfort.
Last edited by hustler; Aug 4, 2012 at 03:11 AM.
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Found it! You better ------- appreciate my work. This is what we mean by "search noob".
thread (post #33):
https://www.miataturbo.net/wheels-ti...s-50923/page2/
post (refering to difference between 8" and 9" with 225/45):
thread (post #33):
https://www.miataturbo.net/wheels-ti...s-50923/page2/
post (refering to difference between 8" and 9" with 225/45):
Yup. Depends on the car and course but we usually see about a second on a 2 minute + road course, less on a shorter one. Autocross is less, maybe .4~.6 typically.
General rule of thumb (my rule): For maximum performance from radials, choose wheel width at least as wide as tire section width. Ignore bead width, tread width and manufacturers (lawyers) recommendations.
General rule of thumb (my rule): For maximum performance from radials, choose wheel width at least as wide as tire section width. Ignore bead width, tread width and manufacturers (lawyers) recommendations.
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Joined: Apr 2011
Posts: 301
Total Cats: 4
From: Oregon
I had tried squeezing a set of 225-45 nitto's on a 7" set of spec miata rims (because that's what I had). The results were not optimal. I found that you had to start the tire out with much lower tire pressures as the middle of the tire would bulge when it gained air pressure and would overheat, making the car skate after 10 laps or so... next season, 9" rims, or 205-50 rubber.
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The V8 Supercars series sometimes puts a camera on a front wheel. Amazing how much the contact patch distorts, especially under braking.
You get some good shots on F1 cars also, when they do the closeups / slo-mos of one going through a corner. The rears probably shift at least a half inch either way.
You get some good shots on F1 cars also, when they do the closeups / slo-mos of one going through a corner. The rears probably shift at least a half inch either way.
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Good Job, I wish I had done 9's, but I got a screaming deal on my 8's.
I'll be trading my 225 RS3s for 205 NT01s for this weekends trackday on my above 8" 6ULs, if I have time to get to the tire shop. I'll let you know how it turns out.
I'll be trading my 225 RS3s for 205 NT01s for this weekends trackday on my above 8" 6ULs, if I have time to get to the tire shop. I'll let you know how it turns out.
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Found it! You better ------- appreciate my work. This is what we mean by "search noob".
thread (post #33):
https://www.miataturbo.net/wheels-ti...s-50923/page2/
post (refering to difference between 8" and 9" with 225/45):
thread (post #33):
https://www.miataturbo.net/wheels-ti...s-50923/page2/
post (refering to difference between 8" and 9" with 225/45):
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