[flash]

yeah - seen that one - it's one of the 2 i've seen



here's another:



http://members.rennlist.org/911pcars/WheelWts.html

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[sparky]

I checked my wheels, they are genuine, stamped with part nos as follows (matching PET option M398)

Fronts 993.362.124.05

Rears 993.362.128.00

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[flash]

wow - both charts are wrong - that sucks all around - makes me feel better about my choice though

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[bibbetson]

I've done the same wheel weight test twice, once with Toyo RA-1's and again with Victoracers. Both times I weighed the tire and wheel and subtracted the manufacturers stated weight of the tire. In both cases I come up with 19.5 lbs for my 17x9 part number 993.362.128.00 wheels. If you look up the list on the PDF that you posted, you will see a line for "Porsche 993" with a stated weight of 19.5 lbs.



That suggests that the 968 wheels where heavier than the 993 wheels, and we seem to have two wheels in our possession that suggests that. Problem is, both wheels have the same part numbers.



At 19.5 pounds per wheel, the stock Porsche wheels are a bargain! At 23 pounds, there is a lot of room for improvement.

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[sparky]

there's still the possibility my scales aren't accurate. I've been thinking I need a more accurate set, so maybe now's a good time. Or maybe I'll just check them with something of known weight, like a 10 gallon bucket of water. stay tuned ...



Good point on the 993 in listed weights. Perhaps the 968 wheels in my list are Cup-I. I've heard these are heavier - does anyone know weights for them?

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[bob blackwell]

My Cup I Front wheels weigh 23 pounds each on my bathroom scale. These are the 7 1/2 x 17 inch wheels. Bob Blackwell.

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[flash]

ok- done this one before, but just so we don't all get wrapped up in misnomers, and end up getting confused, there are "C2Turbo" or "C2T" wheels, which have been incorrectly referred to by many as "Cup 1", and were the flat spoke type wheels, and there are "993 Cup" or "Cup" wheels which have been incorrectly referred to as "Cup 2", and were the more cupped spokes



here is a link to the arguably best source for this info, complete with photos for clarification:



http://www.wheelenhancement.com/index.php?t=Wheels





yeah bob, i weighed the C2T wheels once too, and they concurred with the charts



rustech has some Cup wheels - maybe i can get him to get one weighed on a good scale



this is really odd though, and i'd love to get to the bottom of it

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[BruceWard]

I have a set of factory option M398 "Cup 93" Design wheels in the garage with nothing but factory finish and a little bit of brake dust on them . Part numbers 993 362 128 00 and 993 362 124 05



With a bathroom scale that reads exactly 25 pounds with a 25 pound cast barbell the fronts weigh in at 19 pounds and the rears at 21 pounds.



I will take them to UPS next week and weigh on their scales.

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[bob blackwell]

Thanks Bruce, that is good enough for me, no need to check any further. Good luck, Bob Blackwell.

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[sparky]

OK I might be flogging a dead horse, but I loaded my scales (spring balance) with 10 litres of water in a 0.5kg bucket and it the registered spot on 10.5kg. So I'm happy they're quite accurate and for now I'm still convinced the "Cup-II" wheels (as pictured earlier in this thread and option M398) weigh 20 lbs & 23 lbs front /rear. But for completeness next time I have the tyres off the wheels I will double check.



For the heck of it I did weigh one front wheel fitted with a brand new Bridgetsone RE-55S 235/45R17 tyre and it was 22kg (48.5lbs). Unfortunately I couldn't find weight of tyre on the net, but if I knew that I could deduce and double check the front wheel weight.

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[Jacks968]

This is all very confusing.



I have had a set of 993 "Cup II" wheels and the original Cup II's that came with my 968 from the factory. The rears are the same part number. Only the front wheels are different (width). The chart above ignores the "Cup I" style was used on 964s, 968s, & 928s, and Turbo. And that style, like the Cup IIs also appears to have been offered sized in 16 and 17 inch according to sales lit that I have seen. The chart does not show a 964 wheel? The base Cup II offered on the early 993s where 16s. So there seems to be many variations and ???

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[flash]

fair enough - i'd go with the results of those here who actually weighed them - i'll take real results over somebody's old info or speculation any day - i was going by the charts i had, in absense of anything else, but clearly there is a glitch there

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