rcg412

Ha. Joking. Couldn't resist. 19s are too big!! But i have 19s for summer and track wheels. 18s for winter wheels.

porscheprestige

Exactly what I was wondering. What is the weight of a 20 991 vs a 19 997. Maybe it has improved and maybe it's even lighter if not the same. It could be higher as well of course. I'd be curious to have this info.

997_Toronto

IMO the 20" don't match the overall shape, height & structure of the car but Porsche is not a multi-billion $ company for no reason. I'm sure their engineers, designers and marketing teams spent sufficient time thinking through this decision.

I think 19" with a little lowering makes these cars look wicked depending on your use (street / track). The 18" are perfect for winter driving as it allows for sufficient space for the sticky snow to fall out vs. getting packed in the wheel well.

bmwfan328

looks pretty good to me

wheeler

WORD!

997_Toronto

Did not say it does not look good on any P-Car plus it was just IMO.

No rubbing on the front?

cvtbenhogan

I really like the 991 stock 20' wheels. Wouldn't want to go to a lower profile though.

bmwfan328

It's not my car, the pic is from an old post on 6speed. The owner says he is running spacers in the rear only, and H&R suspension. no mention of rubbing in the front.

Personally, I wouldn't run 20s on my 997, because I believe the ride quality would suffer. Just thought I'd throw the picture in the thread for others who haven't seen it yet.

Lvt19672

Looks good but the ride must be rough.

997v2cabrio

Sorry but it looks getto to me.

iandiman

Ok ok nuff with the he said she said...... You can fit 991 20' wheels on a 997 the ride comfort will improve, there is no difference in the rubber profile from a 19' wheel, fronts 35' rears 30' and on a 20' wheels, fronts 35' rears 30' profile, only the rims are bigger from 19' to 20 inches, now, I think the ride is better because I believe the tire walls are stiffer as I have noticed a more comfortable damping feel on bumps and potholes, so an improvement to the 19s rubber, there are some right fools out there 'about the ride will suffer, where do these people come from with their opinions' do your homework then make a valuable opinion, so others can be informed.... Ask any 991 driver if the ride in harsh and I don't think Porsche would make it next gen 911 a worst and uncomfortable ride do you ....

Now, as for 18' for track I can't see the logic in this but that's another bag of weed to smoke haha I don't smoke ... Moving on ,,,

so you are thinking of going BIG, good boy or girl, here the pros and cons if you get the right offset wheels anything is possible I have a slim body 997 Carrera S running 991 20' wheels ,,, rubber boots 245-35-20 rims 8.5j / 20' offset 51' that the front; now the only problem with the front are the 245 tires with the standard Spring support touch, so to get out of jail, you would need to replace the tires to the 997 standard 235------35-20 to stop the rubbing or add a 5mm spacer at front but this pushes the rubbers out pass the arches this will effect cornering speeds,,,,

the best solution would be to upgrade your suspension support to coilovers springs and it's a win win situation all the way to the bank, you can keep the 245 rubbers without spacers giving you a wider track at stock heights or you have the option to lower your car but not as low as the black car above that's too much and the car will look slam, get all the wheels aligned and they will be no rubbing.... My 991 rears rubbers are 295-30-20 rims 11j / 20 offset 52' nothing to say here they fit no spacers required but you know, there room for a 21' rims here, 991 GT3RS anyone hmmmmm ......

P.s.....Porsche wouldn't give the 991 GT3RS MONSTER 20' front and 21'at the rears for track days 'IF' 18' wheels was the only option for track Manoeuvring, you may as well add skateboard kryptonic wheels to your Porsche the RED ONES not the Green or blue MMMMMM

Dennis C

I don't like 20-inch wheels on the 997.

That being said, it is amusing that many people get very upset if somebody suggests a 20-inch wheel, but they find it perfectly acceptable to attach gutter guards from Home Depot to the front bumper with wood screws. (I saw another forum member post a similar comment, and I couldn't resist posting it again.)

If you like 20s, then buy 20s....

DougM

"so you are thinking of going BIG, good boy or girl, here the pros and cons if you get the right offset wheels anything is possible I have a slim body 997 Carrera S running 991 20' wheels ,,, rubber boots 245-35-20 rims 8.5j / 20' offset 51' that the front; now the only problem with the front are the 245 tires with the standard Spring support touch, so to get out of jail, you would need to replace the tires to the 997 standard 235-35-19 to stop the rubbing or add a 5mm spacer at front but this pushes the rubbers out pass the arches this will effect cornering speeds,,,,"

So you are saying that all you need to do is put 19" tires on a 20" rim in the front?

nwGTS

That's what I read too.

Just to be clear..
This is what you have on the car: tires 245-35-20 rims 8.5j / 20' offset 51' (you rub a bit with these).
You are suggesting a 5mm spacer or moving to 235-35-19 rubber.
Is that right?
That part of your post is the most confusing.

dgjks6

This is interesting. He put stock 20's from a 991 on a 997. He used the 20 inch size from the 991. The tires match front and rear so I guess no worries about traction control. But the tire diameter is 4% bigger. So it will throw off the speedometer - about 4% faster with the 991 sizes. But the speedometers always run slower than actual speed so maybe the speed will be correct.

I guess my question is whether running the wrong size tires on a 911 is bad in the long term on suspension/transmission/steering components? I am talking long term - 50K miles? I know you can do it on 4x4's but never considered running the wrong size on my car.

Because if you can, I'm in. It looks awesome.