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Old 03-25-2007, 09:23 AM   #7
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Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Hi,

No offense, but if you already bought the H&R Springs, what's the point in asking questions now?

Merely swapping Springs in a Willy-Nilly fashion to lower the Car will result in altering the Suspension Geometry, which can lead to compromised handling and possible excessive component wear, including the Tires.

The ROW M030 Kit is designed by Porsche, in it's entirety, to preserve, or even enhance, the Handling and Suspension Geometry.

The Springs in this kit were selected specifically to add to this system through proper Material Composition, Spring Height, Spring Rate, # and orientation of the Coils, etc.

These Springs are a Major component of the Overall System. If you change these, you will alter the System and most likely it's Geometry and Handling characteristics right along with it - The exact things you're hoping to avoid.

It would be impossible, without both extensive Bench and Field Testing, to ascertain whether the System will be excessively negatively compromised, by switching the Springs. It all may seem OK at first, only to find out that Control is lost at the edge (or under certain conditions at the edge), or that 3k mi. later, your Tires are Bald.

Porsche puts a lot of engineering and testing into it's performance upgrades. Expertise which is derived from thousands of hours, and years of acquired experience in accumulated testing, not to mention, large amounts of cash. It's naive to assume that one can casually out-engineer them, or a combination of ignorance, arrogance and dumb luck. Which is not often the case.

Were it me, I'd skip the H&R Springs and just go with the ROW 030 kit in it's entirety - as it was designed, for the reasons stated. You, of course, can heed or ignore this advice as you choose. Good Luck!...

Happy Motoring!... Jim'99
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