Tire Choice for STi : 17x8.5

Mrfairlady · 08-02-2005, 08:53 PM

well I've been reading up in my Hyper Rev as well as seeing what others have run.
I notice that alot of the Japanese Tuner companys use a 245/40 on thier Impreza's w/ that Rim size or even 9"wide.
I hear that is the Perfect Replacement for Stock Rolling diameter,only a little wider to get use of a 8.5" wide wheel?
I have TEIN flex and they are set to the Tein Measurements (Slammed) and still think a 245/40 would fit but someone said NO,..Thats still to wide for a Lowered STi w/ 8.5's?

anyway..what size should I go for that would keep rolling stock Diameter w/o a Huge Sidewall but enough to not have to roll fenders?

I guess bigger would make the Gears longer and smaller would make quicker gears?

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import111 · 08-02-2005, 09:08 PM

255/40/17 is the same diamiter as the stock 225/45/17. I would go with that. Since U have an 04 STI U might need to roll the fenders a little.

Ryan

gregr01 · 08-02-2005, 11:48 PM

Depends on your wheel's offset, and the particular tire you choose.

I have a couple of sets of +48 17x8.5s. With Eibach springs I've rubbed using shaved 225/45s (Pirelli PZero System Asimmetrico) and not rubbed using 245/40s (Pirelli PZero Nero M&S).

I rolled the rear fenders and that solved the rear rubbing issue, though the 225s still rubbed on the front innerfender liner. Raise your height a bit and you shouldn't have problems, depending on offset.

08-02-2005, 08:53 PM	#1
Mrfairlady Scooby Specialist Member#: 67338 Join Date: Jul 2004 Chapter/Region: South East Location: Matthews,NC	Tire Choice for STi : 17x8.5 well I've been reading up in my Hyper Rev as well as seeing what others have run. I notice that alot of the Japanese Tuner companys use a 245/40 on thier Impreza's w/ that Rim size or even 9"wide. I hear that is the Perfect Replacement for Stock Rolling diameter,only a little wider to get use of a 8.5" wide wheel? I have TEIN flex and they are set to the Tein Measurements (Slammed) and still think a 245/40 would fit but someone said NO,..Thats still to wide for a Lowered STi w/ 8.5's? anyway..what size should I go for that would keep rolling stock Diameter w/o a Huge Sidewall but enough to not have to roll fenders? I guess bigger would make the Gears longer and smaller would make quicker gears? * Registered users of the site do not see these ads.

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08-02-2005, 09:08 PM	#2
import111 Scooby Specialist Member#: 24447 Join Date: Sep 2002 Chapter/Region: SWIC Location: Tucson, Arizona Vehicle: 2010 Evo GSR GG	255/40/17 is the same diamiter as the stock 225/45/17. I would go with that. Since U have an 04 STI U might need to roll the fenders a little. Ryan

08-02-2005, 11:48 PM	#3
gregr01 Scooby Specialist Member#: 49333 Join Date: Nov 2003 Chapter/Region: SWIC Location: Phoenix AZ Vehicle: 04 STi java pearl black	Depends on your wheel's offset, and the particular tire you choose. I have a couple of sets of +48 17x8.5s. With Eibach springs I've rubbed using shaved 225/45s (Pirelli PZero System Asimmetrico) and not rubbed using 245/40s (Pirelli PZero Nero M&S). I rolled the rear fenders and that solved the rear rubbing issue, though the 225s still rubbed on the front innerfender liner. Raise your height a bit and you shouldn't have problems, depending on offset.