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Old 08-06-2001, 01:02 PM   #1
Jon Bogert
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Default Warning: some 15" rally wheels do not fit WRX

My mechanic, Bert Arano at Union 7 is preparing a ProRally WRX right now. He ordered the usual Subaru fitment rally wheels from Compomotive in England. They were 15x7x50mm offset and they do not clear the caliper. The interference is slight--a 45 mm or less offset would be fine. He also test fit Revolution RFXs with the same result. This is with the stock U.S. front brakes, BTW. I'm lending him 35mm offset Compomotives from my Celica 'til he can get the right ones from England. That'll be one wide track rally car!

The issue seems to be that the rally wheel manufacturers use different castings for different offset ranges. The 50mm offset was at the positive offset limit of that particular casting. Therefore there was very little space between the mounting surface and the part of the rim where it flares to meet the spokes.

So do not assume that if you just tell the wheel vendor "to fit a Subaru" everything will be fine. The new WRX is different enough from prior models that it's not an automatic fit. Make sure that that particular wheel in the specific offset has been tested on your car.
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Old 08-06-2001, 01:17 PM   #2
pbnj9786
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these 15s do, they even fit the STi Brembo brakes.

STi, perfect fit everytime.
pj
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Old 08-06-2001, 01:57 PM   #3
SHADOWES
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thoes are cool wheels... I whish I could have them...
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Old 08-06-2001, 03:01 PM   #4
Patrick Olsen
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15x7" +50mm Raceline RL-7s will also fit the stock US-spec WRX brakes. I tried mine out on a WRX at a track event a couple months ago just to see if they would clear.

Pat Olsen
'97 Legacy 2.5GT sedan
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Old 08-06-2001, 03:13 PM   #5
Jon Bogert
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Good suggestions both. I posted this just to point out that a couple of seemingly "obvious" 15" rally wheel choices require a little more care to make sure they fit.
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Old 08-06-2001, 04:06 PM   #6
Dave_Clark
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Default

Jon, those Compomotives would probably fit the 4-pot calipers that the rest of the world gets on the standard WRX. Trouble is, we get the sliding calipers and with the larger diameter rotors the caliper will touch the wheel where the 4-pot caliper does not. Like Patrick said the Racelines have enough clearance and fit. The Minilite rally wheels just barely touch with brand new brake pads. After the pads wear down a bit the caliper slides in and clears.
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Old 08-06-2001, 04:06 PM   #7
Subie Gal
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thanks Jon!!!

there are loads of wrx's popping up in the rally scene and this is indeed useful information!!

j.
www.subiegal.com
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Old 08-08-2001, 04:23 AM   #8
iceweazel
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Were those RFX's new? Which offset? Been talking to
Tom Tat. about a set to fit over 4 pot group Ns.
Very worysome.

Ed
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Old 08-08-2001, 09:20 AM   #9
Jon Bogert
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Don't worry-- the whole world knows about the Subaru 4-pots and what wheels fit over them. The issue here was the 2 piston stock WRX calipers on a PGT car. I don't have a template but they must stick out a bit further to the rim or face than the 4-pots.
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Old 08-08-2001, 03:22 PM   #10
Dave_Clark
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Yes, they do.
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Old 08-08-2001, 03:56 PM   #11
Idjiit
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Thanks for the head's up, Jon. I was contemplating getting the compmotives, but looks like I'll be going with the RL-7's instead.
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