Non-Stock Rims? Input?

[MPDano]

Originally Posted by Fischer_76_911S

As you know, the fronts are fine. Your question was the rear. See this link:

Porsche Wheel Fitment and Offset Guide


It is (according to the link) possible to fit an 18x11, but I think your offset may be an issue. I can tell you my 18x10 (65) are really close on the backside on my 928. I do not have any spacers in the rear. I might have to add a 1" spacer to bring my rims away from the suspension. That should "center" the wheel and max out my fender clearance at the front of the rim. I believe I read somewhere that 928's came stock with spacers in the rear? If so, mine are missing. Bob

I was looking at some Wheels/Tires from a Carrera 4 Widebody. I also saw a post somewhere, where they put an 11 inch rear. It was very close, probably need to roll the fender. Yes, the offset is what is in question. I wonder if I can find that 11 rear post?

[Pete R]

Keep in mind the company that posted that offset guide also sent me 2 sets of rims that stuck out of the body work of my car, much like the "ghetto rims" but not quite as bad. (they made good.. so they aren't shady, just lacked knowledge on 928's) The car pictured has 11@ 45et on it. You will be right at the edge. May have to roll the fender, it's so close rear camber may be the difference between rub or not.

[MPDano]

Originally Posted by Pete R

Keep in mind the company that posted that offset guide also sent me 2 sets of rims that stuck out of the body work of my car, much like the "ghetto rims" but not quite as bad. (they made good.. so they aren't shady, just lacked knowledge on 928's) The car pictured has 11@ 45et on it. You will be right at the edge. May have to roll the fender, it's so close rear camber may be the difference between rub or not.

What car pictured?

[Pete R]

If you scroll down Porsche Wheel Fitment and Offset Guide It shows a black 928 with that size rim on it

[MPDano]

Ah................


928 78-85 Can use all of the narrow body wheels from 993-986-996-997 50mm -65mm et front and 48mm - 65mm et rear. 1981 to 1984 cars have 21mm spacers in the rear. These can be removed to fit some wide body wheels. (18x10 40mm 18x11 45mm) You may still need to do some fender mods depending on the tire size.
Most extreme fit 18x10 et65mm front and 18x11 et45mm-63mm. The 18x11 et63mm wheel fits nicely on the rear with a 285/30/18 tire. 19"s fit very nicely on the car

18x8et 50mm and 18x11et 45mm below



928 86-91 Can use all of the narrow body wheels from 993-986-996-997 50mm -65mmet front and 48mm-65mm et rear. Some manual 89gt cars have 17mm spacers in the rear so you may have to chuck them when using wider wheels and tires
Most extreme fit 18x10 et65mm on all four corners. The 18x11 et63mm wheel fits nicely on the rear with a 285/30/18 tire. 19"s are possible

18x8et 50mm and18x10et 65mm below



928 GTS Can use all of the narrow body wheels from 993-986-996-997 50mm-65mmet front and 48mm-65mm et rear. Cars have spacers in the rear for the flared fenders. These can be removed to use wide body wheels.
Most extreme fit 18x10 et65mm on all four corners. The 18x11 et63mm wheel fits nicely on the rear with a 285/30/18 tire. 19"s are possible

18x8et 50mm and 18x10et 65mm below

[MPDano]

Will all 9's work? ET55

17" x 9”, 55mm offset

[Plexus928]

Originally Posted by MPDano

How about these Cayenne Turbo II Wheels in 18? ET 57

Look GREAT! Very similar to a Cayman/Boxster wheel (which has slightly thinner spokes and the bolt patern is moved so the bolts are centered on the spokes) I have a set of these ready to put on a 928, 57ET is 928 friendly,
The weight without rubber is 13.7kgs's (30.14pounds)

[Pete R]

9" @ 55 won't work, they will stick out of the body on the front 1/4 inch. Probably won't notice it visually but you will have fender to tire contact if the suspension is compress enough especially turning

[MPDano]

Originally Posted by Pete R

9" @ 55 won't work, they will stick out of the body on the front 1/4 inch. Probably won't notice it visually but you will have fender to tire contact if the suspension is compress enough especially turning

Ok, that set is out. Saw a great deal on some Cups that were local to me.

Will keep plugging away on some finds.

[JK McDonald]

Hey MPDano, I think either the 18 inch Cayenne Turbo II or the Panamera wheels would look really nice but my personal favorite is actually the Porsche twist style GT wheels. The blacked out phone dials on a lowered 928 look sharp too.

What ever you do decide on using, I’d sure stick with a good quality brand. Some of those aftermarket rims can weigh as much as an engine block and will seriously influence a car’s handling characteristics. I had helped R/R a couple of dented rims on the front of a 928 that had jumped straddle of a curb during a rally. I don’t know about all of the over-sized wheel/tire combinations but man, those Konig 20 inch’ers mounted with super low profile tires takes two men and a kid to lift back up on the lug studs.

Michael

[MPDano]

I did start looking at the Cayenne Wheels until I saw how much they weigh (over 30 lbs). I am trying to stick to 20 lbs or below. The Cups I was looking at were around 18 lbs and they weigh about the same as my PD's.

I'll keep looking and get you guys's opinions, which I value very much.

[Plexus928]

sports classic's around 2002 Boxter (on 928 now)
17x7 ET55 front
17x8.5 ET50 rear
fitted with 255x40 PZero,(pic of a rear) weighs 41.8 pounds (19Kg's) on my bathroom scales
Still debating if they should be replaced with the Cayenne turbo 2's

[DougM]

I will be picking up my '84 Euro S on Tuesday. It is black and I really like the black twists on the black car pictured above. I will be selling my 993tt once I get the 928. You say that the 993tt wheels will fit? My tt wheels are 8" et53 and 10" et40. They are painted black like above. If they will fit, I might just purchase some hollow spoke 996tt wheels for the 993 before selling it. I would like to bring the wheels back to stock color when I try to sell the car.
The 928 currently has some aftermarket Modas on it and I am getting the originals as well. Those could be sold to help fund the purchase of the 996tt wheels for my 993. I understand the spacers will need to come off the 928, but can those sizes/offsets fit without any issues?

[Pete R]

Doug, they should fit. If you own them all I'd do a test fit before selling any. Sometimes there's brake and centercap issues too. I like the looks of the Moda's on that car . I have the the twists on my 951. I'd swap you those for the Moda's (if the fitment worked)

[MPDano]

Also, remember (which I learned yesterday) that there is a different between "Twists" and "Turbo Twists." Above pic (Black) is Turbo Twists, which to me has more detail to the rim.

[DougM]

Mine are stock 993tt hollow spoke twists that are on my turbo.

[DougM]

Originally Posted by Pete R

Doug, they should fit. If you own them all I'd do a test fit before selling any. Sometimes there's brake and centercap issues too. I like the looks of the Moda's on that car . I have the the twists on my 951. I'd swap you those for the Moda's (if the fitment worked)

Which ones? 17 or 18" and what offsets and tire sizes? If I run the 993tt wheels, I will have to remove the spacers and cut down the studs. If I get a larger offset, I can run them with the spacers intact.

[MPDano]

Originally Posted by DougM

Mine are stock 993tt hollow spoke twists that are on my turbo.

That's exactly what I am looking for.

[DougM]

The car or the wheels? The car will be free if you buy the wheels for $43,000

[MPDano]

Rims of course and not a penny over $42,900