kurquhart

Hello, please pardon the intrusion: I don't monitor this forum but based on search results, this is the right place to ask my questions.

Background: in late '05 I purchased a 90 C2 to convert into a track car. It came with 18" Speedline wheels. Being new to Porsche ownership (and never even having heard of Speedline), I naively used these wheels for initial track work. A few off-track excursions in the desert dinged them up nicely.

I later learned about the rare 993 RS Speedline for Porsche wheels. I was quite worried that I had damaged wheels worth $5k+, if you can find them. Luckily (or not?), searching this forum led me to the conclusion that they were actually "just" Speedline Aliseo wheels.

With some help from Bill Verburg, I performed some fairly accurate measurements: 8Jx18 ET45 and 10Jx18 ET56. Both size and offset agree with the front markings, however the rears do not: they are marked 8-1/2Jx18 ET31. So it appears that the rears have been rebuilt from original specs.

I have attached a few low-res pics of these wheels. There are also many hi-res shots on my (slow) server.

Finally, my questions:
1. Any clues as to what the original rear fitment (8-1/2Jx18 ET31) might have applied to?
2. What might these be worth, in good condition? I am trying to decide whether to refurbish them and sell them for street use, or to keep beating them up at DEs (I have Kinesis K28 for competitive events).

TIA.

Sooner

I have these exact wheels & am desperately searching for replacement center caps (they are an odd size). Do you know of a source? Or if you decide to keep these as track wheels, would you be interested in selling me the center caps?

Sumtoc

I have a set of these wheels as well. They were sold to me with the RS center caps which I will use later when the rest of the RS body parts are on the car.

I replaced them with the silver painted crest caps that were on the OEM 17" turbo twists. Those caps fit fine in the RS wheels and I don't think they are an odd size?

Sooner

Do you have the Speedline for Porsche wheels, or just the straight speedlines? I tried OEM, they are too big. My wheels have the Oval lug nut openings, the speedline for porsche wheels have a round lug opening.

The Speedline for Porsche Wheels accept the OEM center caps.

nota_troll

sell them to me

kurquhart

They are indeed smaller (2 5/16" dia) than the OEM wheels. The part number is 737.16.21397, but you probably already know that. I prefer to keep the set complete, sorry.

Bill Verburg

I have a 9" and 10" version of those wheels, when the car is very low the 56mm rear o/s is a tad too low, you would really want +65mm rears.

kurquhart

I would consider selling them, if I only knew how much they were worth (I will need to buy replacement track wheels). All I can find is a couple of ebay auctions that ended with 0 bids.

kurquhart

I use a 1/2" spacer on my 964; I wasn't sure if this applied to 993, as well.

Bill Verburg

964 and 993 are very different in the back, a spacer would make it worse on a 993, remember low numerical o/s sticks further outboard.

The +56 10 is fine at normal ride height, but not when very low

kurquhart

Thanks for the correction; I always get that backwards (obviously!)

Sumtoc

Didn't notice your picture didn't say Porsche, yes mine are the OEM

kurquhart

I have refurbished these wheels for sale, now on eBay starting at $1k:
http://cgi.ebay.com/ebaymotors/ws/eB...m=270149684113

kurquhart

For the benefit of future searches: the market has declared that these wheels have a value of $1785.

TheOtherEric

That's lower than I expected. Too bad for me, since I have a set for sale too.