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dantin's Avatar
 
Join Date: Jan 2009
Posts: 33
1988 Carrera trailing arms/1988 930 trailing arms

Thanks to all the pelicans out there for your help and support.

I have done a search on this subject, but have come up empty.
I am doing a brake upgrade on my Carrera to 930 turbo brakes, I have everything I need, but also have a good set of 1988 930 trailing arms.

My question is this, are these trailing arms a direct bolt on , or do I have to change the pickup points?

I read in the book"Original Porsche 911" page 87 that with the introduction of the G50 gearbox in 1987, the cast iron support for the semi-trailing arms used the turbo's geometry.
Is this correct?

Any help would be greatly appreciated.

Old 08-10-2010, 07:20 PM
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Join Date: Jul 2001
Location: Portland Oregon
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930 trailing arms are VERY different from Carrera ones and unless you have a wide-body car, they will not fit since it leaves the wheels well outside the stock Carrera fenders.

Further, you would need either a 930 torsion bar tube or a pair of weld-in camber boxes to properly position the trailing arms.

IMHO, the correct way to install 930 calipers on the rear is to have them modified to fit your Carrera trailing arms.
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Steve Weiner
Rennsport Systems
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Old 08-10-2010, 07:38 PM
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Thanks steve for the quick response.

The car does have the 930 front and rear fenders, sorry I did not mention them in the question at first.
I was trying to save from modifying the calipers unless I had to.

I am guessing I would get the 930 torsion bar tube from a automotive salvage yard, and not sure where I would get the weld-in camber boxes.

Thanks again
Old 08-11-2010, 05:52 AM
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Quote:
Originally Posted by dantin View Post
Thanks steve for the quick response.

The car does have the 930 front and rear fenders, sorry I did not mention them in the question at first.
I was trying to save from modifying the calipers unless I had to.

I am guessing I would get the 930 torsion bar tube from a automotive salvage yard, and not sure where I would get the weld-in camber boxes.

Thanks again

Ahhhhh,..key information,.....

That makes ALL the difference in the world. All you need is a 930 torsion bar tube as those already have the correctly positioned brackets for your 930 trailing arms.

No additional weld-in boxes required.
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Steve Weiner
Rennsport Systems
Portland Oregon
(503) 244-0990
porsche@rennsportsystems.com
www.rennsportsystems.com
Old 08-11-2010, 07:30 AM
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steve,
your the man.

Thank you.

Old 08-11-2010, 09:39 AM
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