A friend of mine has a set of sport techno on 20" he told me to keep them and gave him a price, he really does not care.

I live in Mexico and is very bumpy many put holes the pavement is a mess!!

I do not know what to do?, will appreciate feedback on quality ride on 20"s, also if you have a price number on the set wheels? They are for a C4S as my car they came from a 991 C4S

 

On a 991

 

I would never put 20s on a 997.

 

Why?

 

To quote Sharkwerks


"Just say no to 20s. Get that idea out of your head. It won't look good. It won't ride well. The geometry and suspension was never set up for that sizing and we never put wheels larger than 19-inch diameter on the 997.2."

 

If they come with the car, then yes - but not on a 997. The Sharkwerks assessment is brilliantly stated. But at the end of the day, you have to do what suits you; it's your car.

 

I would avoid 20 inch wheels and tires.

 

looks bad and rides even worse... I don't see why people put 20's

 

This discussion has been beat to death.... sorry many of the replies here I think may some more clarification.

I would take a light weight well made 20' over a heavier made 19 all day long. Aesthetically speaking well that is up to you... 20's fill up the wheel well much more than 19's and if you’re not lowering your car helps greatly regards to "looks" if that is a concern to you. Albeit given the right wheel design. Like any wheel the design is a big factor in regards to how they may look from a visual perspective.

The whole scare tactics against larger wheels has been going on for years... Many 993 cars went to 18s and people thought they were big and now you see many 993s with 19s. 996 cars the same, where from Porsche come with 18s but we see many people that know a thing or two about cars running 996 cars (lots of 996tt) 19s etc... the 964 guys are running 18s and more.... seems like every past 911 car are running an inch or so over and above what was sent out the doors at the factories in Germany....We see Caymans and Boxters now sporting 20s from the factory.

Larger wheels (withen reason and the RIGHT wheels) are fine to run if done correctly...IMO it is more about weight then 20 vs 19 and with a larger 20 wheel too many people jump to a conclusion that the wheel will be heavier? In many cases this is true but not all.

-In case of the OP I am not sure the weight of those 20s but have a feeling they maybe heavy and if the case would hold off. Also tire height if this set has a tire set for a 991 will not be right for a 997 and will be to tall...-

Sharkwerks a great shop but come on..... to live and die by a comment made long ago by one tuner is a bit much... (sharkwereks great shop no doubt) Champion Motorsports a well know racing team puts out 20's wheels for the street 997 car and they don't put out junk. HRE, OZ, Champion etc and some others make high quality 20 wheels for the 997....Now if your goal is to create the ultimate track car then yes 20s may not be the wheel for you.

I am running Champion 20s, monolite forged wheels (lighter then most 19's) and have them bolted up with titanium lugs. I can tell you the car drives great on every level.... note also the 20s I am running are made specific to the 997 narrow body car so require no spacers what so ever, none and fit perfect. Another nod to a well built 20 wheel. This is some cases better then many Porsche OEM wheels that require spacers to sit right. (unless you want to defend the sunken in tire look as good?)
I have had 18's and 19's and now 20s through the years on a 997 so speak from experience.

To the OP, check the weights of the wheels 1st and most important and go from there but the blanket replies that 20's across the board are a complete and utter No no IMO not accurate.

Just want to clarify the witch hunt of 20s on a 997 is a train wreck is much to general a statement. Some are and some are not... much depends on the wheel.

 

yeah looks terrible

 

To the OP,
IMO it MAY look good depending on the wheel.
But then, knowing that roads are going to be bumpy, why would you want to put the car and yourself through the ordeal of a very harsh ride and bent rims.

Even with 19" wheels, I'm complaining about road noise (though it has to do with the tires also). Roads in Washington state feel like they've been "grooved and scraped" for life! :X

 

Nothin like beating a dead horse,over & over again!!

 

And again....

 

Well...at least it's not another "price check" thread which imo surpasses all others in uselessness and waste of time.

 

Personally, I don't like the way that 20" wheels look on the 997. That being said, many people do like the look. I think the key is to understand the consequences of this mod, just like any other mod.

It's true that there are many 20" wheels that are light weight, and often weigh less than Porsche OE 19" wheels. That being said, the distribution of the weight is different. There's more weight out at the edge of the wheel, further away from the center of rotation (metal weighs more than rubber). As a result, the gyroscopic stabilization forces created by the rotating mass are greater for a larger wheel. This puts more stress on the suspension, steering components and the brakes of the car than a smaller diameter wheel. You don't see race cars with large diameter wheels, and that's one reason why. If you never track your car, then larger wheels are probably not going to be an issue. When Porsche releases a new 911 with an optional larger wheel than the previous generation, they modify the suspension and steering components to handle the increased forces.

Again - I don't care if people want to put 20" wheels on their 997. This decision will result in a rougher ride and slightly slower acceleration, but for some people it's worth these consequences to achieve a certain look.

I'm sure somebody will squeeze a 21'' wheel onto a 997 before long if it hasn't already been done.