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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.


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Old 05-27-2009, 08:44 AM   #1
My5ABaby
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Default Best tire size for stock 15"

I have the stock 15x6 (86-87.5 GTU/Sport) rims and I'm wondering what the best tire size for handling would be. I have some crappy Wal-Mart tires on there now and want to put something better on.

My main options seem to be:
195/55-15
205/50-15
225/45-15






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Last edited by My5ABaby; 05-27-2009 at 08:48 AM..
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Old 05-27-2009, 03:30 PM   #2
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I don't know if width should be all what you're looking for. A cheap crappy tire on 225s won't outperform a good sticky tire on 205s. Are you looking for a summer tire? all-weather-tire? for racing?

http://grassrootsmotorsports.com/for...re/8825/page1/

Glad you brought it up, I'm looking for good street tires that will perform without needing to be replaced too often.
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But I've learned that people that don't like guns, tend to like stretched tires.

Which makes perfect sense. They are sacrificing safety either way. lol



Last edited by Phoenix7; 05-27-2009 at 03:34 PM..
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Old 05-27-2009, 03:46 PM   #3
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Quote:
Originally Posted by Phoenix7 View Post
I don't know if width should be all what you're looking for. A cheap crappy tire on 225s won't outperform a good sticky tire on 205s. Are you looking for a summer tire? all-weather-tire? for racing?

http://grassrootsmotorsports.com/for...re/8825/page1/

Glad you brought it up, I'm looking for good street tires that will perform without needing to be replaced too often.
Granted, one tire will out perform another given any size. I mostly want to know in order to narrow down my options. However, I'll probably just end up going with 615's. Treadwear isn't much of an issue for me since I've put on 8k miles in 6+ years.
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Old 05-27-2009, 04:24 PM   #4
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225 50 15, might need some 1/8 or 3/16 spacers not sure, on tire rack there are some pretty sticky tires in that size
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Old 05-27-2009, 04:35 PM   #5
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I run 205/50/15 on my 15x6 +42 OZ/enkei wheels and they fit fine with a 1.5" drop
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Old 05-27-2009, 04:54 PM   #6
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I don't think you can fit 225s on a 6" wheel. I may be wrong but you may need to go with a wider wheel to fit 225s.
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But I've learned that people that don't like guns, tend to like stretched tires.

Which makes perfect sense. They are sacrificing safety either way. lol


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Old 05-27-2009, 05:00 PM   #7
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I run/ran 215s on a 5.5 inch wheel...Not recommended but doable...Problem is the sidewalls are already rolled over a bit so handling is kinda odd and you dont get most out of the tires...I figure 225s on a 6 would be similar results.
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Old 05-27-2009, 06:08 PM   #8
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You saw Zach's red FC at DGRR right? That is what 225/50/15's look like on stock BBS wheels (same set up I have).

I run mine inflated to 40 psi and they work great.
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Old 05-28-2009, 01:39 AM   #9
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reccomended rim width for hankook r-s2 in 225 50 15 is 6-8 inches
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Old 06-04-2009, 04:52 PM   #10
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I used to run 225-50-15's back in the day. I used kumho ecstas because they were cheap and decent.
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