dualblade

i just called up edge racing because i was curious of the wheel weights of the 17x8. i just bought a new set of tires and was looking to reuse them. according to them, there are no 17" wheels that fit our cars, only the 18" will clear the caliper. the weight they quoted was 26.5lbs for the 18x8 and 29lbs for the 18x9.5

personally i'm not sure if i want to make the jump to 18" wheels and i'd probably lose a bunch of money if i had to sell off my tires with like 200 miles on them. i've gotta admit, i'm very dissapointed but i also have a question. do any of you know if the 17x8 would be able to fit with a spacer? or is it a question of the diameter of the wheel not being enough. i'm not sure why this would be such a problem if we had 16" stock. if anyone has info that could help me out, please do cause i'm really interested in these wheels.

also, i'm assuming that the 17x8 would be somewhat lower weight than the 18's, perhaps around 22-24lbs. is this a good weight for a wheel or is it heavy? i don't really know what a good weight for a 17x8 wheel would be so i have nothing to compare this to.

Cass944

i was looking at those on they're website. the highest the bolt pattern goes on the 17s is 5 x 113 or 114 our bolt pattern along with all porsches (maybe not the cayenne?) is 5 x 130.

dualblade

could you help me out with understanding that? i'm not sure what the two numbers in a bolt pattern mean. is the 5 for 5 lugs?

also, what do you mean about our bolt pattern? doesn't the 86 use a different offset or is that only for the turbo? or is that not even what you're talking about? i really don't know anything about the numbers associated with wheels so if someone could explain or point to a link i'd be able to keep up here

pete944

I don't think that is much heavier than C2 replicas. There is a site that has a list of wheels and their weights floating around somewhere. Hopefully someone can post a link. It does seem odd that a 17" won't fit. I would think it would fit a 944 with 15" wheels. You'd need a spacer because I think they only make those in late offset. The only problem would be that those wheels would give a real good view of an NA's dinky brakes.

Dualblade, 5x130 is 5 bolts in a 130mm diameter circle. I'm pretty sure Porsche is the only manufacturer to use this bolt pattern.

Dave

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 944pete:
<strong>I don't think that is much heavier than C2 replicas.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">But they're way too heavy! There are enough wheels out there under 20 lbs that there's no reason to even consider anything heavier than that. 24 lbs or more would really be detrimental to your car's performance, you would feel a big difference.

Tabor

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by dualblade:
<strong>perhaps around 22-24lbs. is this a good weight for a wheel or is it heavy? i don't really know what a good weight for a 17x8 wheel would be so i have nothing to compare this to.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">I think the fiske are 17lbs for 17x8. Personally I wouldn't buy anything over 20lbs. I had some C2-replicas and I kicked them to the curb for some factory 944 Turbo S wheels (club sport wheels).

dualblade

this may seem like a really dumb question but are there any cars that we could swap hubs with? or maybe some other mod to our current hubs to allow us more variety in wheel choices? it seems that there are so many different wheels out there and we have access to so few of them. i'd like a lightweight, attractive, and inexpensive 17" wheel (i guess everyone's looking for these qualities) and it would be so much easier if porsche didn't have a different bolt pattern than everyone else

pikey7

Kahn don't make 17" wheels with our bolt pattern or offsets. They will provide 18" in a variety of their styles. I mailed them the other day to enquire about the RS-R wheels, and this is what they said:

QUOTE:
Thank you for enquirying about our products. We have in stock some Kahn RS-R, 8 x 18, 5 x 130, ET 49 (Front wheels), and 9.5 x 18, % x 130 ET 52 ( rear wheels). Alternatively, we have RS-C 2 pces, 8.5 x 19, 5 x 130, ET 45 ( front wheels), and RS-C 2 pces, 9.5 x 19, 5 x 130, ET 45 ( rear wheels).

Bear in mind these wheels are for 87 and on cars. they would need spacers for before 86MY (Not sure exactly on that, but just search the archives!)

To change the hub pattern means changing the disc, which then probably means the caliper, which basically means the whole system, unless you have custom discs made (MEGA pricey I would imagine!), and would far outweigh the higher cost of our specific fitment wheels. (Plus, you try finding them again when you warp a disc). There are physical limitations such as bearing size and things also, so Even if you could find someone, it'd probably be impossible anyway (Unless you change to a complete racing system - $$$$$$$$$)

I'll also mail my contact there, and see what the weights for the various wheels are.

Dan Gallagher

here is the page with the wheels by weight:
<a href="http://www.wheelweights.net/" target="_blank">http://www.wheelweights.net/</a>

andrew- just save up and buy a nice set of porsche wheels, the lower quality wheels dont have a porsche bolt pattern for a reason <img border="0" title="" alt="[Wink]" src="wink.gif" />

beginning of next month when we are in our new shop there is a set of 3 piece wheels in storage im going to try to shove on my 951 (they were made for a 911 but i have no idea what year or offsets)... if they fit ill be selling my current 993 wheels cheap.

Tabor

Well, you could have custom "hats" made (like lindsey racing makes today), and then bolt standard rotors to the hats.

Tabor

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Dan Gallagher:
<strong>andrew- just save up and buy a nice set of porsche wheels, the lower quality wheels dont have a porsche bolt pattern for a reason <img border="0" title="" alt="[Wink]" src="wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">But their are some quality wheel manufacturers that make Porsche wheels, but charge a lot more for them. Or make only some of their wheels in the Porsche bolt pattern. SSR comes to mind.

Sami951

And of course those Mak/TSW wheels I had are also available in 5x130 bolt pattern and 49mm offset. They were quite heavy too, which was not surprising for 19" cheapos

Looks like the Kahn RS-Rs will fit late offset 944's with rolled fender lips.

RS-C 19" however, I'm 99% sure it'll rub. If they made it in ~55 ET front and ~60 ET rear you could get away with it, using max 265/30R19 rubber in the back and 225/35R19 in front.

btw, heavy wheels really have an obvious impact on how the car feels. I went from "ahh, excellent" (running 16" phone dials) to "what the #½!& is this" (running 19" heavyweights)...

pikey7

According to the guy at Kahn, the 9.5x18 RSR wheels come in at 33lbs (15KG) and the 9.5x19 RSC at 41lb (19Kg).

Compared with the Porsche 996 wheels (from Dan's link above) 10x18 at 23lbs, and that's a 30% increase!!!!!

Luis de Prat

dualblade: excessive unsprung weight is not good, but even worse on a cabriolet.

I paid through the nose for factory C2Ts for my turbo cab for this very reason. Make sure the caster blocks are the updated kind if you go with 17"ers, too.

I don't care for aftermarket wheels, personally. The factory wheels are considerably lighter than the replicas and at least I know the C2Ts were fitted on 968 cabrios by Porsche as optional equipment: they're pictured with them in the early brochures that came out the same year my car was sold (1992).

To each his own!