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Old 06-28-2009, 09:35 AM   #1
eta Epsilon
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Spacers for the back wheels

I am thinking of using 12mm spacers on the 2 back wheels to give a bit more stance to the car.
Anybody did it only for the rear wheels?

What are the pro and the con?
I guess I will have to use longer bolts.

Thanks for the comments.
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Old 06-30-2009, 01:01 PM   #2
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When I added 12mm spacers to the rear only, it significantly increased oversteer on cornering. I lost quite a bit of balance. I am still rollin' that way, but if I was to track the car they'd come off for sure.
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Old 06-30-2009, 01:06 PM   #3
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^^ Oversteer is fun!
I don't plan on running at the track anytime soon. It's purely a visual thing.
Do you think it would affect the bearings life?

Thanks
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Old 06-30-2009, 01:31 PM   #4
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I've heard bearings are affected by this, it multiplies the force on them. I can't say how much for sure.
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Old 06-30-2009, 01:34 PM   #5
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That depends on the wheel width, etc. Obviously, if you have skinny rubber and stick them way out, the bearing will see some funny loads, but I've never heard of a failure or even ppl complaining about wear, so.. Go for it.
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Old 07-01-2009, 09:28 AM   #6
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you dont have to worry at all about bearing failure especially with only 12mm
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Old 07-01-2009, 08:43 PM   #7
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It all depends on the width and offset of your wheels. I'm a tad shocked that you're all giving the guy advice without first confirming what rims and tyres he's running?

If you do do it, yes, you'll need longer bolts. Also, you want to make sure your spacers are hub centric with hub centric spindles for the bore of the rim to fit onto.

What size, width and offset wheels are you running, and with what size tyres?
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Old 07-02-2009, 06:29 PM   #8
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OP's takes some responsibility obviously. 8mm or less are never hubcentric, and I run 12mm non hubcentric thanks to the rims and spacers both using the same hub centering ring.

I've already seen his wheels on here and they'll work out.
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Old 07-02-2009, 10:11 PM   #9
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http://www.turnermotorsport.com/html...0&subcat_id=93 here's some h&r's that are hubcentric from 5mm.
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Old 07-03-2009, 11:02 AM   #10
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Technically, yes, those are, but when most people refer to hubcentric spacers, they mean ones that compile both to the hub and to the inner portion of the wheel.

It doesn't really matter if the spacer is perfectly centered; using the wheel tool will ensure that. But when I say hubcentric, I refer to hubcentric and borecentric, in which the spacer has a portion sticking out the same size as the hub to mount the wheel on.

Any cheap 8mm spacer will work just fine.

Hubcentric:


Not Hubcentric:


The reason you don't see 8mm or less with the hub extrusion is simple: there is nothing for the extrusion to attach to since the hub is in the way. Once you get a spacer over the depth of the hub (about 10mm) the extrusion can be present.
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Old 07-03-2009, 11:08 AM   #11
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^ good info.

My wheels are not supported by the hub anyways...so I guess anything would work
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Old 07-03-2009, 11:19 AM   #12
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You should really get some hubcentric rings then. I'd be surprised if you don't get shaking / shimmying at highway speeds without them.
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Old 07-03-2009, 11:39 AM   #13
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I have some shaking at highway speed, but nothing too dramatic.
I'll see if I can get hubcentric spacers.
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Old 07-03-2009, 11:49 AM   #14
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youre absolutely right they arent dual hubcentric up until 12 or 15mm i believe and you definitely need that both for proper wheel placement and it also distrubtes the load off of the studs.
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Old 07-03-2009, 11:49 AM   #15
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If your rims already don't match the hub size, hubcentric spacers won't either.

You'll need centering rings. Any wheel place can get them and they about $4 a piece. No reason not to.

Then, the hubcentric spacers would be worth it.
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