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Is this calculation correct? Wheel spacing.

Posted by NoCoast 
NoCoast
Grant Hughes
Mod Moderator
Location: Denver, CO
Join Date: 01/11/2006
Age: Settling Down
Posts: 6,740

Rally Car:
Merkur



Is this calculation correct? Wheel spacing.
February 02, 2006 09:37AM
So this is theoretical based on the specs of the wheel. The wheel is 15X7 et 35. So, the wheel should be 177.8 mm wide, which gives the center line at 88.9 mm. Therefore, the 35 mm offset should make the mounting face at 123.9 mm from the back of the rim.

Justin Pritchard had asked me about my Compomotives and was trying to figure out if they would fit on his Escort. He needed the distance from the inside mounting fact to the inside of the wheel to make sure it wouldn't rub on his 'spenders. I'm going to try to measure by hand tonight to make sure, but thought I'd see if my theory is correct there?



Grant Hughes
http://rally.build
Denver, CO
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john vanlandingham
John Vanlandingham
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Location: Ford Asylum, Sleezattle, WA
Join Date: 12/20/2005
Age: Ancient
Posts: 13,998

Rally Car:
Saab 96 V4



Re: Is this calculation correct? Wheel spacing.
February 02, 2006 10:25AM
NoCoast Wrote:
-------------------------------------------------------
> So this is theoretical based on the specs of the
> wheel. The wheel is 15X7 et 35. So, the wheel
> should be 177.8 mm wide, which gives the center
> line at 88.9 mm. Therefore, the 35 mm offset
> should make the mounting face at 123.9 mm from the
> back of the rim.
>
> Justin Pritchard had asked me about my
> Compomotives and was trying to figure out if they
> would fit on his Escort. He needed the distance
> from the inside mounting fact to the inside of the
> wheel to make sure it wouldn't rub on his
> 'spenders. I'm going to try to measure by hand
> tonight to make sure, but thought I'd see if my
> theory is correct there?

Theories???
Send him one wheel to find out.
Read the "ET"
And compare what an Escort wants at about ET ZERO and I think you can see there will be problems.
>
> Grant Hughes
> www.nocoastmotorsports.net
> Denver, CO
> 25 years old
> No car yet, between a Merkur and a Volvo 240






John Vanlandingham
Sleezattle, WA, USA

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NoCoast
Grant Hughes
Mod Moderator
Location: Denver, CO
Join Date: 01/11/2006
Age: Settling Down
Posts: 6,740

Rally Car:
Merkur



Re: Is this calculation correct? Wheel spacing.
February 02, 2006 12:23PM
john vanlandingham Wrote:
-------------------------------------------------------
> Theories???
> Send him one wheel to find out.
> Read the "ET"
> And compare what an Escort wants at about ET ZERO
> and I think you can see there will be problems.

Theories in the calculation I suppose. He's in the Great Lakes region. I'm in the Beer and Mountain region. Back and forth shipping on a wheel would cost money. I'm bringing one to 100 Acre Woods to test fit possibly.

ET 0. Sweet. That simplifies stuff.

Pssstt. May have found another Merkur. Calling on it tonight. Also found five 2 door 240s.




Grant Hughes
http://rally.build
Denver, CO
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