 wheel spacers - what do you like?, fronts need 1", rears about 2" |
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| McMark |
 Dec 13 2012, 02:46 PM
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#21
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914 Freak!  Group: Retired Admin Posts: 20,180 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None  |
From my inspection of the '2012 PCA Club Racing Rule Book', I can't find anything about bolt on spacers or adapters. I looked at all the sections referring to Suspension as well as Brakes. I also searched the PDF and only found six occurrences of 'spacer' and none of them refer to material or technique (i.e. bolt on spacers/adapters aren't specifically restricted).
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| Elliot Cannon |
Dec 13 2012, 05:33 PM
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#22
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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Two inch slip on spacers over 100mm studs puts a lot of stress on the base of the stud.
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| JFJ914 |
Dec 13 2012, 05:42 PM
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#23
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States 
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QUOTE(Elliot Cannon @ Dec 13 2012, 06:33 PM)  Two inch slip on spacers over 100mm studs puts a lot of stress on the base of the stud. "I'm not an engineer", but I think the hubcentric ring keeps the bolts from having a bending moment keping them in tension. I'm sure we've got some real engineers who can comment. |
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| SirAndy |
Dec 13 2012, 06:52 PM
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#24
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Resident German Group: Admin Posts: 42,317 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(John Jentz @ Dec 13 2012, 03:42 PM) QUOTE(Elliot Cannon @ Dec 13 2012, 06:33 PM) Two inch slip on spacers over 100mm studs puts a lot of stress on the base of the stud. "I'm not an engineer", but I think the hubcentric ring keeps the bolts from having a bending moment keping them in tension. I'm sure we've got some real engineers who can comment. (IMG:style_emoticons/default/agree.gif) The hub ring is what keeps the spacers in place, not the studs. (IMG:style_emoticons/default/popcorn[1].gif) |
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| McMark |
Dec 13 2012, 07:02 PM
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#25
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914 Freak! Group: Retired Admin Posts: 20,180 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
But the rear doesn't have a ring. And early fronts don't have rings. (IMG:style_emoticons/default/confused24.gif)
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| SirAndy |
Dec 13 2012, 07:53 PM
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#26
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Resident German Group: Admin Posts: 42,317 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(McMark @ Dec 13 2012, 05:02 PM) But the rear doesn't have a ring. And early fronts don't have rings. (IMG:style_emoticons/default/confused24.gif) There are rear hubs (5 lug) with rings ... (IMG:style_emoticons/default/shades.gif) |
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