pics of New Wheels and GT3 Seats - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Lux · 05-09-2005, 06:58 PM

I wouldn't worry about using spacers so long as it's not too excessive. Sure there's going to be more wear on the bearings. But so what? When you're autoxing or on the track you're also adding more stress on the brakes, tires, chassis, etc. Running 18" wheels adds more stress vs. 17", blah blah blah.

BTW, Porsche has a disclaimer about taking your car on the track...period; it's not just for the spacers.

And about the tire pressure issue:
It is a general concensus among a lot of the people on the Boxster racing board that Porsche's recommendation is garbage. It sets up the car to really understeer. Air up to 33F/36R and it'll feel like a different car. Having a stiff sidewall is great, but if you don't have enough air to support the car then you are risking a blowout due to stressing the sidewalls (see Ford Explorer fiasco) and damaging wheels. Run low pressure at your own risk!

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Adam · 05-09-2005, 07:29 PM

Thankyou for your response Lux. I think I will get the spacers to fill out the wheel wells. 10mm seems like a good compromise between too large and too small of a change. I'm glad you said that about tire pressure...33/36 is exactly what is in mine right now. I go up to about 40 all around when I auto-x.

Brucelee · 05-10-2005, 05:55 AM

I just replaced a set of wheel bearings at my local dealer.

$615 per wheel.

Just thought I would add the cost element here.

Perfectlap · 05-10-2005, 10:33 AM

$615

be careful up front some drivers with spacers complain of "wheel wobble".
Its a tricky science getting the right off set/wheel/tire/spacer. Make sure those lug are properly torqued.

Lux · 05-10-2005, 03:18 PM

$615???

That's the dealer for you. Now go have them replace your brakes and see how much $$$ they charge.

It's much, much cheaper to do it yourself obviously. Usually wheel bearing replacements are a simple DIY, no? ...although I've never done one on a Porsche...

I have also heard of owners that have had wheel wobble issues with non-hubcentric spacers. You definitely want to be hubcentric. Not only does the hub need to be concentric with the spacer, but the spacer needs to be concentric with the wheel...thus making all 3 components concentric.

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