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Old 05-31-2011, 05:13 PM   #126
Uncle Scotty
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Quote:
Originally Posted by Pandasex! View Post
Hi there what r the risk of running 225/45/18 up front and 235/45/18 rear will it really damage my awd on a 09 wrx sedan
d000000000000d...yer center diff will die a horrible death within a short time
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Old 05-31-2011, 07:34 PM   #127
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Ok well I guess I'll just buy the rims and sell the tires sepretly
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Old 05-31-2011, 10:04 PM   #128
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Thinking about running 255/40/17 or 245/45/17 on my 17x8.5" 5 Zigen GN+ wheels. Not sure which one to go with.
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Old 06-01-2011, 09:38 AM   #129
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Originally Posted by lp87

how do i calculate whether my OD is changed or not?
www.miata.net/garage/tirecalc.html
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Old 06-01-2011, 10:46 AM   #130
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Thinking about running 255/40/17 or 245/45/17 on my 17x8.5" 5 Zigen GN+ wheels. Not sure which one to go with.
You've not mentioned the offset of these wheels. And for the tire size, check the tire calculator mentioned above to choose the best diameter. It's best to stay within 2% of your stock diameter.

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Old 06-01-2011, 10:49 AM   #131
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Originally Posted by Pandasex! View Post
Hi there what r the risk of running 225/45/18 up front and 235/45/18 rear will it really damage my awd on a 09 wrx sedan
First of all, this thread is for 2011+ cars. Please see other threads for info on a 2009 WRX.

Secondly, as mentioned, you need to run the same tire diameter all around for your AWD system to survive.

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Old 06-01-2011, 08:30 PM   #132
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Originally Posted by Mach V Dan View Post
You've not mentioned the offset of these wheels. And for the tire size, check the tire calculator mentioned above to choose the best diameter. It's best to stay within 2% of your stock diameter.

--Dan
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5Zigen Pro-Racer GN+ = 17x8.5_ET48

I got these to clear my Brembos.

The 245/45/17 are 1.4% too slow.
The 255/40/17 are 1.2% too fast.
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Old 06-02-2011, 10:03 AM   #133
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Originally Posted by SW21MR2 View Post
5Zigen Pro-Racer GN+ = 17x8.5_ET48

I got these to clear my Brembos.

The 245/45/17 are 1.4% too slow.
The 255/40/17 are 1.2% too fast.
Either one of those should fit the car easily, and both are within the 2% rule of thumb, so go with whichever tire you want.

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Old 06-02-2011, 12:53 PM   #134
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I don't think I mentioned it in this thread.. I like this tire calculator a bit better.
http://www.rimsntires.com/specs.jsp?...rw2=9.5&et2=40

It's nice since you can set the values in the URL by hand if you want to setup what the defaults are.

They both get the same information in the end though of course. Pick your poison.
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Old 06-03-2011, 05:07 PM   #135
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Ok, so , in the interest of keeping my options open, what about 18x9.5 + 40 rolling on 255/35-18's? Keep in mind my intention is to lower my car on the GT Worx Suspension setup. Thanks for humoring me.
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Old 06-03-2011, 05:45 PM   #136
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roll the rear fenders ...
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Old 06-03-2011, 10:05 PM   #137
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Well, I guess if I'm gonna be rolling fenders, might as well go with 265's....
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Old 06-04-2011, 03:59 AM   #138
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or 275s.....
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Old 06-04-2011, 11:37 AM   #139
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Lol yea, but I think that might push it up front...
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Old 06-05-2011, 04:21 PM   #140
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If I get some 18x9.5 Linea Corse Lemans wheels with a +30 offset will I need spacers and if so what are the negative effects of having them? All I will need is an alignment and fenders rolled if I do this right?
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Old 06-05-2011, 05:11 PM   #141
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Quote:
Originally Posted by TheBigBadYeti View Post
Lol yea, but I think that might push it up front...
While certainly not needed for the street, they will fit. 295/35/17's at 25.3" diameter can fit with the proper offset...........
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Old 06-05-2011, 08:29 PM   #142
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Originally Posted by lp87 View Post
If I get some 18x9.5 Linea Corse Lemans wheels with a +30 offset will I need spacers and if so what are the negative effects of having them? All I will need is an alignment and fenders rolled if I do this right?
also, do you think any camber would be necissary?
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Old 06-06-2011, 11:00 AM   #143
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Originally Posted by lp87 View Post
If I get some 18x9.5 Linea Corse Lemans wheels with a +30 offset will I need spacers and if so what are the negative effects of having them? All I will need is an alignment and fenders rolled if I do this right?
You need to research more before you buy anything... Spacers are for lowering offset.
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Old 06-06-2011, 11:03 AM   #144
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Originally Posted by lp87 View Post
If I get some 18x9.5 Linea Corse Lemans wheels with a +30 offset will I need spacers and if so what are the negative effects of having them? All I will need is an alignment and fenders rolled if I do this right?
please read and learn about offsets and spacers. if you don't understand these simple concepts, you shouldn't be looking at anything below a +45 offset.

i, as well as many other members, could tell you how to fit those wheels but if you don't understand a thing about your setup, we're not helping you at all.
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Old 06-06-2011, 04:05 PM   #145
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please read and learn about offsets and spacers. if you don't understand these simple concepts, you shouldn't be looking at anything below a +45 offset.

i, as well as many other members, could tell you how to fit those wheels but if you don't understand a thing about your setup, we're not helping you at all.
Okay I understand what offset and spacers are, offset is how deep the rim is and spacers help the wheel clear the brake caliper. Therefore, if i had a wheel with a +30 offset would it have problems with clearing the brake caliper?

edit: nvm talked to wheeldude and they say no spacers are necissary.

Last edited by lp87; 06-06-2011 at 04:51 PM. Reason: found new info
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Old 06-06-2011, 05:41 PM   #146
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Quote:
Originally Posted by lp87
Okay I understand what offset and spacers are, offset is how deep the rim is
no...
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Old 06-06-2011, 05:50 PM   #147
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no...
okay you know what i mean, how deep from the middle to the hub..better?
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Old 06-06-2011, 06:17 PM   #148
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Quote:
Originally Posted by lp87

okay you know what i mean, how deep from the middle to the hub..better?
http://www.tirerack.com/wheels/tech/...jsp?techid=101

http://en.wikipedia.org/wiki/Offset_(wheel)

http://www.miata.net/garage/offset.htm
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Old 06-07-2011, 12:04 AM   #149
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very helpful thread
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Old 06-11-2011, 01:21 PM   #150
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I have a 2011 STI Sedan and I am interested in getting a set of Enkei NT03+M wheels. I am looking into 18x9.5 but I am not sure what offset to get for them, +27 or +40. Also I am thinking of running a 255 or maybe a 265. Can I get away with just rolling the rear fenders? Please help. Also I will definitely be powdercoating the rims so any advice on colors? Im thinking some sort of gunmetallic color or black. Thank you.

I forgot to mention that I will be running RCE Yellows and their RCE Swaybar combo 25mm front/rear.
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