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Subaru Impreza Tire/Wheel Questions

114 messages,  Last post on Feb 07, 2012 at 8:31 PM

You are in the Subaru Impreza Maintenance & Repair Forum.

What is this discussion about? Subaru Impreza, Tires, Sedan, Wagon

Messages Page 12 of 12

#105 of 114 Rim interchangeability by angitherias

Jan 26, 2012 (7:48 pm)

I found a good link about subaru wheels: http://forums.nasioc.com/forums/showthread.php?t=2239019
 
Usually the wheels size, width and offset is printed someplace on the inside of the wheel, behind the spokes for example. So that would be a good place to look.

#106 of 114 There's more to rim fitment by capriracer

Jan 27, 2012 (5:03 am)

There's more to rim fitment than just the dimensions. The wheel has to clear the brake parts - so that means you just can't just look at the dimensions.

#107 of 114 Re: There's more to rim fitment [capriracer] by kanjii

Jan 27, 2012 (7:42 am)

Replying to: capriracer (Jan 27, 2012 5:03 am)
That's why I was sticking with impreza and wrx rims only. Looking at the link above, looks like many of the oem rims would fit. If someone knew which rims will ft without a problem, I can start searching for a second pair.

#108 of 114 Re: There's more to rim fitment [kanjii] by xwesx

Jan 27, 2012 (10:48 am)

Replying to: kanjii (Jan 27, 2012 7:42 am)
The only ones that will not fit are STi rims. Otherwise, 16" or greater Subaru rims with a 5x100 bolt pattern will fit it. I recommend that when you find a set, you test-mount one on the front of the car just to ensure it will meet your need.

#109 of 114 rim fitment by angitherias

Jan 27, 2012 (2:13 pm)

Test mount without the tire, unless your upsizing and looking to see if the tire clears components.

#110 of 114 Oversized Tires for Off-Highway Use? by fandango

Feb 06, 2012 (6:25 pm)

A few times a year, I take my Impreza on trips that involve a lot of dirt roads, including some that are pretty rough, basically mild 4WD roads.
 
I ought to own a Forester or an Outback for trips like this, but I don't. Can I "Foresterize" my Impreza for such trips by putting on oversized, higher-profile tires? If so, how much bigger? The OEM height profile is 55. Could I run a 65 or 70?
 
If this is possible, I'll just keep on hand a spare set of tires and rims and put them on for my trips to the back country.
 
Thanks for any insights.
 
http://www.pbase.com/lookoutranch/image/135723442.jpg
 
http://www.pbase.com/lookoutranch/image/135724108.jpg
 
http://www.pbase.com/lookoutranch/image/135723270.jpg

#111 of 114 Re: Oversized Tires for Off-Highway Use? [fandango] by xwesx

Feb 07, 2012 (12:44 pm)

Replying to: fandango (Feb 06, 2012 6:25 pm)
You might consider a mix of smaller rims with slightly higher profile. I am not sure if the 2007 would still take a 15" rim, but you might check on that. If so, you could go with a stock '96-'99 Outback wheel (205/70R15), and that might be just about perfect at the same width with maximum sidewall and a 0.7" increase in radius (if you have the clearance!).
 
Assuming the 15" will not fit, your model looks to have 16" rims on it with the 205/55 tires. You would need to measure the clearance, both in the wheel well and between the tire and strut, to actually determine what will fit. Just increasing the sidewall height will give you a little more flexibility than if you were wanting to go wider as well because you shouldn't have any issues with rubbing when you turn. At a 205mm width, moving to a 60% ratio will increase your radius by .4", while a 65% ratio will increase your radius 0.8".
 
While that radius increase won't give you much additional ground clearance, I imagine it will help when you're dragging belly through that mud or crossing that creek!
 
In addition, those ratios will also knock your speedometer/odometer off by 3% and 6%, respectively. So, while running them, if your car is traveling at 60 mph, the speedometer will read ~58 mph and ~56 mph (respectively).

#112 of 114 Re: Oversized Tires for Off-Highway Use? [xwesx] by fandango

Feb 07, 2012 (1:21 pm)

Replying to: xwesx (Feb 07, 2012 12:44 pm)
Thanks!
 
Yes, I would want to keep the 205 width and just get a higher profile sidewall. It looks like a 65 is about the most that would fit, and it would give me about an inch more height, which would nice out there in the dirt.
 
It won't help much with the biggest problem, though, which is the angle of attack. That low front end really sticks out there.
 
Gotta get me a Forester.

#113 of 114 Re: Oversized Tires for Off-Highway Use? [fandango] by xwesx

Feb 07, 2012 (2:36 pm)

Replying to: fandango (Feb 07, 2012 1:21 pm)
That low front end really sticks out there.
 
That it does. I had the same problem with my Outback ('96) when I took it off road. My Forester, a 2010, has nice angles on it. It sure could use a rear LSD though. The VDC does nothing for you in those situations, so you're basically stuck with open differentials.

#114 of 114 Re: Oversized Tires for Off-Highway Use? [fandango] by angitherias

Feb 07, 2012 (8:31 pm)

Replying to: fandango (Feb 07, 2012 1:21 pm)
205/65r16 is 26.5"
205/70r15 is 26.4" overall diameter.
 
Ever consider a skidplate?

Messages Page 12 of 12

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