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 Post subject: Yet another wheel offset question !
PostPosted: Fri Jun 07, 2019 6:22 pm 
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I want to go in the opposite direction to most people. I want to replace the 8x15" Fuchs wheels on the rear of my 85.5 car with 7x15" Cookie Cutters. According to http://www.944racing.de/wheelweights.php that means going from et11 to et23. Does that mean I should get 12mm spacers, and if so where can I get them ?

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 Post subject: Re: Yet another wheel offset question !
PostPosted: Sun Jun 09, 2019 10:44 am 
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Not exactly, the ET is rim width specific. Depends if you are trying to get the outer face to end up in the same place, get the same centre line or whatever outcome you are trying to achieve. Use http://www.willtheyfit.com to input and adjust outcome based on your goal. Make sure you use hubcentric spacers with centre spigot. You may need bolt on spacers such as offers by H&R etc if not then longer studs.

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1980 924 Turbo Series 1 - Alpine White & Guards Red
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 Post subject: Re: Yet another wheel offset question !
PostPosted: Sun Jun 09, 2019 11:53 pm 
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Thanks - that's very helpful.

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If it ain't fuel then it'll be sparks, except when it ain't sparks, in which case it'll be fuel.
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1959 Austin Healey 3000 Mk 1
1985 Porsche 944
1999 Massey Ferguson 4225
2018 Fiat 124 Spider


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 Post subject: Re: Yet another wheel offset question !
PostPosted: Mon Jun 10, 2019 8:29 am 
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Can't add to what Steve's said, but this is also a good website for visualising things: http://www.rimsntires.com/specspro.jsp Less pretty but more data!

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 Post subject: Re: Yet another wheel offset question !
PostPosted: Mon Jun 10, 2019 5:47 pm 
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Gryphon wrote:
Can't add to what Steve's said, but this is also a good website for visualising things: http://www.rimsntires.com/specspro.jsp Less pretty but more data!


Not seen that site before. Great info. What I like with willtheyfit.com is the overlaying of the rim + tyre to give an easy visual of the differences. But rimsntires give more measurements

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1980 924 Turbo Series 1 - Alpine White & Guards Red
Omega forged pistons, Piper cam, K27/26 hybrid turbo, 951 ducted FMIC, custom intake, Mittelmotor/123ignition, Hayward & Scott, GAZ Golds, Fuch'ed, Quaife LSD


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