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914World.com _ 914World Garage _ Rear Camber Shims - What Thickness Do I Need?

Posted by: Joseph Mills May 10 2005, 09:20 AM

Subject pretty well says it all - Search button no help here.

I know there are 3 thicknesses, but does anyone know how much adjustment results from each?

Posted by: Cloudbuster May 10 2005, 09:42 AM

I put about a touch less than a 1/4 degree additional negative camber into my car by removing a .85" shim. So I figure somewhere in the .170-.200 range.

Posted by: mike_the_man May 10 2005, 09:44 AM

I'm getting an alignment this week, and I just happened to look into this.

1mm of shim thickness = 10minutes of positive camber.

Hope that helps.

Posted by: Cloudbuster May 10 2005, 09:52 AM

So...
1mm = 10 minutes, 60 minutes = 1 degree, 6mm = 1 degree?

Therefore
3mm = .5 degree. 3 / 25.4 = .118"?

Posted by: J P Stein May 10 2005, 10:15 AM

Off the top of my head.
Length of ear to outter mount is 12 in (I'd double check this number). 12 X tan of .5 deg (.008726) = .104722 in.

Posted by: SirAndy May 10 2005, 10:22 AM

QUOTE (J P Stein @ May 10 2005, 08:15 AM)
Length of ear to outter mount is 12 in (I'd double check this number). 12 X tan of .5 deg (.008726) = .104722 in.

guys, ever thought about using metric? it would make your live soooo much easier.

besides, the shims are measured in mm anyways.
Andy

Posted by: skline May 10 2005, 10:40 AM

You guys impress me with your math skills, good to know people use thier minds. I thought it was a lost art.

Posted by: mike_the_man May 10 2005, 10:42 AM

Ya, what Andy said! Metric rocks!!!

Posted by: Cloudbuster May 10 2005, 10:44 AM

QUOTE (SirAndy @ May 10 2005, 09:22 AM)
ever thought about using metric?

Boo!

Posted by: Joseph Mills May 10 2005, 10:50 AM

Thanks guys. Just the info I needed for this evening's project.

And even though I own a metric ruler, I'm stayin' away from the political side of this debate.

Posted by: E-Man May 10 2005, 11:02 AM

Not me.

Roslyn Carter tried to get Jimmy to have the US adopt the millimeter system.

Posted by: J P Stein May 10 2005, 12:24 PM

QUOTE (SirAndy @ May 10 2005, 08:22 AM)

guys, ever thought about using metric? it would make your live soooo much easier.

No. You had your chance to convert us, but blew it.

We don't use German, Spanish, or French as our native language either....I spose you have a problem with that also.

Posted by: SirAndy May 10 2005, 12:43 PM

QUOTE (J P Stein @ May 10 2005, 10:24 AM)
No. You had your chance to convert us, but blew it.
We don't use German, Spanish, or French as our native language either....I spose you have a problem with that also.

actually, you're misinformed ...

your country (the US of A) switched *officially* to the metric system a looooong time ago.
if memory serves me right, that was in 1978 (could be off by a few years, i'm still trying to forget that part of my life)

i suppose they simply forgot to tell ya'all ...
Andy

Posted by: SirAndy May 10 2005, 12:50 PM

a quick search revealed this:

http://ts.nist.gov/ts/htdocs/200/202/lc1136a.htm

ok, so it was 1975 and not 1978. oh well. i was close tho ...
Andy

Posted by: J P Stein May 10 2005, 01:09 PM

You are misinformed on my being misinformed. I lived thru the debte and the result.

Posted by: MattR May 10 2005, 01:12 PM

Metric is easy when it comes to length (its just Xmm * .0393716 = Y in). What I hate is when you're expected to know the metric and SI units of Force, AND the two constants in different equations. Now thats just excessive...

Posted by: Engman May 10 2005, 05:46 PM

Typicially what I have seen is 1 mm = about .25 degress. That was a couple of years ago when I had mine done.

M