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Old 04-20-2005, 07:41 PM   #1
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I think tinkering with the suspension is not something you want to skimp on. I mean its ok with an inexpensive car like the Miata or a Civic but this a Porsche man! It deserves the best set up you can afford. Go with a full coilover system.
like the Billstein PSS 9. Its $1900 delivered from the link below. The psosibilities in finding the right balance between comfort and performance are enless. I only wish I had a lift because I could spend the whole day charting heghts with compresions. :dance: When a car is dialed in perfectly the carving sensation is fantastic. I spent at least $2000 on my Miata's suspension until I found the perfect set up and it was the best thing I did to enjoy the driving experience. Adjusting that little knob for different settings was my favourite thing about the car. Soft in the City hard on the highway.

Billstein PSS9

The thing is if you go with just lowering springs its a crap shoot. Will your $50,000 car like the new stance? I played this gamble several times and like me you will learn that it can be a disaster. There are many factors that can affect the way your car will take to certain springs unrelated to just the spring rates. How heavy are your wheels and tires? What sways are you running? How worn are your shocks? Suspensions are very sensitive and tinkering with it without the ability to adjust ride height/center of gravity is not something I would want to gamble a $400-$600 mechanic's fee on. With the coilovers you can return the car to the stock height and set teh shocks to full soft. and gradually lower it until you hit the sweetspot in looks and comfort.
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Last edited by Perfectlap; 04-20-2005 at 07:55 PM.
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Old 04-20-2005, 10:02 PM   #2
Lux
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Both H&R and Eibach make quality products and I believe both are TUV approved. The Boxster runs a basic Macpherson suspension...not magic fairy dust. Throwing on a different set of springs will change the dynamics but it isn't going to be too much of a crapshoot.

If you do a lot of roadracing (track), then the PSS9 would be a good choice allowing you to adjust ride heights, valving characteristics, and corner balance the car. If you do a little track/autocross, want a lowered stance yet want some compliance on the street, then the lowering springs fit that description quite nicely and a coilover system is somewhat overkill. What's "the best" for the track is not always "the best" for an all around application IMHO.

I use to run H&R springs with Bilstein Sports on my M3 while a buddy ran PSS9 on his M3. Even at full soft the ride of the coilover system was much more harsh on the street.

Interestingly, the Boxster supposedly comes with linear rate springs whereas the aftermarket springs (e.g. Eibach and H&R) are progressive rate.

Check the Boxster racing board. Those guys have tried it all as far as suspension is concerned...


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