carlau

What do you think of these wheels, would like others feedback. I have a 997.1 4S 2007 build with 19inch wheels and Pirelli tires - P Zero 305 tyres at the rear.

The rims at the front are 19x8 and rear are 19x11.

The wheels here they are selling are 19x8.5 at the front and 19x11.5 at the rear.

What difference if any will the extra 1/2inch at the front and rear make using the Front & Rear" 19" Pirelli P-Zero 305/30/19 Rear & P-Zero 235/35/19 front.

I want the tyres "not" to overhang the fender or to rub, what size spacers would I require and if anyone has fitted these pics would be great.

And what would be the difference between the OEM and these ones that they are selling.

http://cgi.ebay.com/ebaymotors/19-Po...Q5fAccessories

stevepow

That (rear offset is not for C4 - not sure if that can be worked around or not) and the "you get what you pay for" addage would scare me - buy it now for $650? Really? 4 Wheels?

Look in your owner's manual for tire and wheel info - page 291'ish:

Tires, Rims, Tracks 911 Carrera 4, 911 Carrera 4S, 911 Targa 4, 911 Targa 4S
Tire Rim Rim offset Track
Summer tires*
front 235/40 ZR 18 (91Y) 8 J x 18 H2 57 mm 58.6 in./1488 mm
rear 295/35 ZR 18 (99Y) 11 J x 18 H2 51 mm 60.9 in./1548 mm
or
front 235/35 ZR 19 (87Y) 8 J x 19 H2 57 mm 58.6 in./1488 mm
rear 305/30 ZR 19 (102Y) XL 11 J x 19 H2 51 mm 60.9 in./1548 mm
or
front 235/35 ZR 19 (87Y) 8.5 J x 19 H2 55 mm 58.6 in./1488 mm
rear 305/30 ZR 19 (102Y) XL 11.5 J x 19 H2 50 mm 60.9 in./1548 mm
Snow tires
front 235/40 R 18 91V M+S 8 J x 18 H2 57 mm 58.6 in./1488 mm
rear 295/35 R 18 99V M+S** 11 J x 18 H2 51 mm 60.9 in./1548 mm
or
front 235/35 R 19 87V M+S 8 J x 19 H2 57 mm 58.6 in./1488 mm
rear 295/30 R 19 100V XL M+S** 11 J x 19 H2 51 mm 60.9 in./1548 mm

carlau

I will pass on those, to cheap even though they look good.

Just wanted someone else's opinion on them.

I will stick with OEM wheels or some other good quality brands that I have seen on this forum. Thanks for your feedback.

stevepow

They may be great - the whole wheel market could be a racket - wouldn't be the 1st thing. I have no idea really. The price is way into the "too good to be true" zone though.

kdurg

These rims are Carrera Sport knock-offs. They're legit.

I spent the better part of a week researching feedback and had 3 conversations with the reps at the company. Call me crazy, but for this price I could buy 4 sets before I'd get to the price of OEM CSports.

I wasn't disappointed. The fit and finish is excellent. No balancing issues whatsoever.

Your widebody will need 15mm spacers to get to stock offsets in the rear. You'll also need to get the OEM center caps in GT Silver. You'll have no problem with 305 tire width on the 11.5 inch rears.

Edgy01

You get what you pay for. (And you pay for what you get). As substitutes for the real thing, there may be issues with these wheels that can cause you trouble downstream. Sure, they tell you that they are exact copies of the real thing, but even minor issues of less than a millimeter can become an issue. I would be curious as to how much they weigh, compared to the OEM ones. For that kind of money they are made in China. But then, it's your life. If they fail when you're out there driving at 140 mph don't come back to the Rennlist and whine about it. I would be curious to see the BACKS of the wheels, to see what is cast into the back of them. Also, they say that "These wheels exceed all TUV, DOT, JWL, & VIA standards." I want to see the paperwork that supports that. Finally, just to show you how little they know about the originals they are copying,--they cite that they are painted in charcoal grey. The XRR Carrera Sport rims are in GT Silver. If they can't get the color right, what else are they overlooking?

tincanman99

If they fit and are well made, who cares. I would bet money that Porsche sources a lot of their parts out of Asia (China). All companies do nowadays because labor is cheap. The quality of Chinese made items is improving dramatically all the time. I would not be surprised if the company making them is making them for Porsche minus the logs and certs on them.

kdurg

I can appreciate your skepticism but you may want to forgive yourself of any aspersions on Chinese wheel manufacturers. They're here to stay :

http://www.reportlinker.com/p0135888...2008-2009.html

As far as these rims ? Yes, they're made in China. According to the distributor, they're pressure casted. Fronts and Rears weighed in at an even 25/30lbs respectively.

Just finished discs, pads, flush this morning so I figured I'd take some pics of the cleaned barrels. Typical stamps and etchings from what I can tell. No TUV stamps but neither did my uber rare OEM 993 RS Speedlines which weighed just as much in 18inch config.

Wheel failure at 140mph ? Nonsense. There are significantly greater risks of a tire blowout at high speeds compared to a rim ever failing.

Again, my experience with these wheels after 6 months and 7200 miles has been excellent. Factoring the inexpensive price and it's a win win. YMMV.

abe

Can some one show me a thread or post of how their aftermarket wheels failed causing catostrophic consequences. Everyone always mentions this....but I never seeing a case of it.
abe

stevepow

I've seen some posts (and photos) on the BMW forums where OEM wheels cracked with a good pothole hit. Catastrophic wallet failure seemed to be the biggest issue for those without a wheel&tire warranty.

But that would be my main concern - not so much a high speed failure as much as a pothole failure. It would take more faith than I have, unfounded fear or not, to risk 140mph+ with them - just not worth finding out the hard way. But for inexpensive street wheels, what a price!

Aside from that, are 25mm spacers OK?

Edgy01

Thanks for posting the weight and photos! The OEM XRR rims are also 25 lbs (front). The only real concern is process. Many Chinese manufacturers are getting up to speed but they also have managers who are keeping a close eye on production costs, and corners are cut. Personally, I would rather send my US$ to Europe than to Communist China, but that's just me. Also, Communist China doesn't respect design patents, like the rest of the world. We're seeing the same issue with counterfeit aircraft parts where trusted carriers wind up with an aviation disaster, only to discover that their trusted subcontractors were sold inferior parts from China,--all lacking in a suitable papertrail that shows appropriate production testing and quality control. Nothing of quality comes inexpensively,--unless you're simply looking toward the short term savings of money.

kdurg

I'm not sold forged rims are any stronger than a pressure casted wheel. If it wraps a pothole, they're all gonna bend.

No--25mm spacers on your narrow body won't work. I'm running oem 5mm in the rear and I wouldn't want to push it further out with the 11.5 width rim.

Sorry, more pics.

edited orginal post- Widebody offsets at 51 would need a 15mm spacer to work. H&R is a good source for hub-centric spacers/adapters.

Edgy01

Actually, forged wheels (one piece) will BEND while pressure cast or cast wheels will fracture. It has to do with the grain structure. The grain on the cast wheels is comparatively much smaller. Unfortunately, the only commonly available forged OEM wheel for Porsche today is the 997 Turbo wheel which is provided by Fuchs of Germany. (I don't care for the design, personally).

stubenhocker

I thought these were Chinese specials! Not for me at any price!

http://www.amazon.com/Poorly-Made-Ch.../dp/0470405589

Edgy01

That's interesting. These weigh more than the OEM wheels. (Perhaps it's just a poor CHINESE made scale...)

OEM:

Porsche Factory Carrera Sport - 106 lbs, 12 oz.

8.5x19" 24 lbs. 2 oz.
11.5x19" 29 lbs. 4 oz.

Knock offs: 25 lbs, 30 lbs.