My spring project will be fitting a complete trst-of-the-world M030 sport suspension package to my 1997 Boxster. I'll be upgrading to the Boxster S brakes at the same time. I'd like to also upgrade to 18" wheels at the same time, but Porsche warns not to fit 18" wheels to pre-2000 Boxsters, presumably because of how much heavier they are vs. the OE 1997-spec 17s.
Carbon says to go with Volk wheels, but even those are 22lb/wheel. Any suggestions?
The porsche my02 wheels (Google it) are light and cheap. Porsche says the same about 964s, but lots of folks do it.
18 x ????
I don't know stock sizes or if you want to go bigger. Also do you have a budget?
If not, just call one of the custom outfits and be done with it.
18X8 & 18X9.5
OZ Alleggeritas seem to tick all the boxes & don't cost more than the car is worth. 18-20lb a piece. Better ideas?
It's not the weight, it's the added leverage and change in geometry. Stiffen the chassis with some of the aftermarket braces available and watch the suspension geometry (for example: the 944 needed improved castor blocks and extra castor when moving up to 17" wheels). Run whatever wheels you want (BTW Porsche is the only one to use that bolt pattern and the stock wheels are surprisingly light).
In reply to turboswede:
I know that Porsche is the only one to use that bolt pattern, but I disagree about the stock wheels being surprisingly light. From changing the wheels, first hand, the 17s are surprisingly heavy. Like weigh as much as my 4X4 Toyota wheels heavy.
I generally avoid attempts to outsmart Porsche engineers.
M030 wrote: Carbon says to go with Volk wheels, but even those are 22lb/wheel. Any suggestions?
Which Volk wheels are 22#?
I had CE28Ns on my S2000, size 17 x 9.5" and they were well below 20#. I think they were 15#s. I can check tonight as I have a picture of them on a scale.
They were not cheap though. But cheap and light usually dont go together in these sizes.
M030 wrote: In reply to turboswede: I know that Porsche is the only one to use that bolt pattern, but I disagree about the stock wheels being surprisingly light. From changing the wheels, first hand, the 17s are surprisingly heavy. Like weigh as much as my 4X4 Toyota wheels heavy.
Comparing the weight of the OEM 911 18's on my 951 to any of the OEM 15" wheels I've had around here over the years, including the aftermarket BMW 17's, I'd say that my experience is the opposite of yours, but to each their own.
My point still stands about ensuring the chassis is prepared for the larger wheels and tires.
I'll second the Allegritas, ridiculously light, and reasonably priced. Enkei RFP1 is a good light wheel, too, but pricier, and probably harder to find in the correct sizes.
Nathan JansenvanDoorn is on the right track too, the Carrera II wheels are very light, but will probably cost you more than a set of Allegritas, unless you find someone willing to give you a deal. My 996 came with the Carrera II wheels, and they're surprisingly light considering their size. They are 18x10 in the rear, though, not sure how that'll fit on a 986.
Pic of the Carrera II:
Woody wrote: I generally avoid attempts to outsmart Porsche engineers.
How many have you worked on? They are some of the best in the business but they still do dumb things on occasion.
jsquared wrote:Woody wrote: I generally avoid attempts to outsmart Porsche engineers.How many have you worked on? They are some of the best in the business but they still do dumb things on occasion.
coughbattery boxescough
BTW, I have a set of Carrera II's on my 951 and they look the business and they are pretty light for their size.
jsquared wrote:Woody wrote: I generally avoid attempts to outsmart Porsche engineers.How many have you worked on? They are some of the best in the business but they still do dumb things on occasion.
Lots of them.
thewheelman wrote: the Carrera II wheels are very light, but will probably cost you more than a set of Allegritas, unless you find someone willing to give you a deal. My 996 came with the Carrera II wheels, and they're surprisingly light considering their size. They are 18x10 in the rear, though, not sure how that'll fit on a 986. Pic of the Carrera II:
I have two sets of Carrera IIIs. They look a lot like the Carrera IIs and are also very light. I think that they may be magnesium.
To put 18x10s on the rear of a 986, you will probably want spacers. I have some photos somewhere of 18x10s, with and without spacers, on the back of my Cayman.
These are Carrera IIIs. The before and after spacer photos I have were of 9 inch wide Cayman S wheels.
I use 15mm spacers with 10 inch wheels.
Turbo Twists are pretty much the only genuine Porsche wheels that I find fairly consistently for not a lot of money. They're probably a little heavier, though.
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