Ray S

11's will work just fine on a narrowbody 996 (I have 11's on my car) provided you use the correct offset!!

Don't you check the offsets before you purchase wheels??

Here is a web site that will help with the calculations.....
Offset Calculator

FWIW, I would not recommend "machining" the hub. 5mm is a significant amount of material and I believe that such "machining" would compromise the wheel.

sweanders

Talk to the wheel manufacturer about modifying the wheel for a different offset. It most likely is no problem to do.

gota911

Use the offset calculator that Ray S provided. Set the current at 10" width and 65 mm offset (OEM for most narrow body 996's). Then the new size at 10" width (I know, you have 10.5", that is the next step) and 52 mm offset.. You will see the additional "gain" on the face (outside) of the wheel is 13 mm. Now change the new rim width to 10.5" and keep the 52 mm. Now the additional "gain" on the face (outside) of the wheel is 19 mm. Half of the additional .5" moves to the outside, compounding the reduction in the offset from 65 to 52.

I agree, contact the manufacturor to see if they can help you with increased offset, or swap to a 10" wheel, which will accommodate 275's you ordered. work on a 10" wheel.

996 Jammy

in my case, ordered wheels through dan @ vivid racing, just told him what car i had and he took care of the rest...we'll see how its resolved. Never needed to give offset info.

phwang20

Makes sense. Using the calculator 71mm is the same as OEM. What do most people like going with? Meaning how much further out if any do people like? Or is going the same as stock the best option?

Thanks,
Paul

996 Jammy

Here's how mine look...

996 Jammy

couple more pics...please disregard the gap...which further enhances my car's 4x4 look.

Russ Murphy

Wow! That's some extra wheel and tire out there.

phwang20

295/30/19's? I'm not sure how valid this is, but the guy at DTM Autowerkes said that if you want the deep dish look or lip on the vehicle, it would be difficult finding an offset like 65-70 b/c with that offset, there'd be a lot of pressure on the struts. I haven't done much research on that so I have no idea if it's smoke.

996 Jammy

Ok, here's what vincent @ iforged told me today:
michelin tires are known to be oversized and that my 295's really fit like 305 or 315's. Rather than the sidewall tapering in, they go straight up which creates a taller tire on the outer edge.

He said the fix was simple, switch to the mich 275 that'll fit more like a 285 and it should be fine.
So, i went ahead and ordered them today. Hopefully this alleviates the issue and im a happy camper. If not, plan on seeing me on the board with a new thread.

thanks

Ray S

Never heard that one before. Is the guy being honest with him or is that BS??

ayaz

I want to order a set of these very soon.
What is the final word? Is a higher offset available or is the only solution to go with a 275 tire?
is it ok to go 275/30/19 instead of 295/30/19?

CWay27

Ok guys I don't know much about 996 but do know a few things about wheels. Hub rings and center caps are not the same thing. Center caps cover the hub hole and hub rings make the wheel fit snug to your hub.

Yes in some occasions I've seen some tires wider then others and had the experience a while back with continental tires. They were 235 but were as wide as a 245 from Kuhmo MX. By the look of your pictures, I don't think going 275 will solve your problem. Yes your tires look fat on the rim but 275 will only make it look like old "dubs" meaning the tire will look stretch. On the picture we see that the tire protects the rim and we see that the rim itself sticks out, so by going with 275, you will have a stretched tire that wont protect the lip anymore.

Machining the wheel is feasable but you have to check on how much "meat" the wheel has. Yes 5mm is alot and it's not that easy cause you have to consider the caliper clearance (between caliper and spokes) and machine also the hub ring, in order for the wheel and the hub ring to be flush. Everything is feasable cause I did it with my LMs on my passat.

Balancing the wheel is one thing but you do have to re-balance it once the tire is on. There is a much greater factor with the tire being unbalance then the wheel itself thus the need to balance once wheel and tire are mounted.

My personnal opinion is that 275 is too narrow for the 996 and I would of never baught or exchange tires for a wheel that didn't have the right offset in the first place.

Good luck

mudbuddha

I second what Cway27 said. Off set is extremely important as i found out the hard way myself with my previous P-cars. Please don't go down in tire size because it'll just exacerbate the situation. Not to mention that it'll look a little odd driving around. If you don't track your car, i would say it's relatively safe to machine off 5 mm from the back of your wheels. However, make sure and a good machinist should be able to tell you, that you have enough material left for obvious safety reason. You may end up doing a combination of things here...roll fender a bit, less rubber, and machine off 3-5 mm. It all depends on how much sacrifice you are willing to take. Good luck and let us know how things turn out.

ayaz

Tim's wheels dont look like old dubs and he has 275s on them.....