hey guys

last week i've visited my local Porsche Dealer because i'd like to get rid off the standard rims. i had 19" or maybe 20" rims in mind. but he said that the turbo would perform at its best with 18" rims. if mounting 19" and abouve cornering ability etc. would be worse. his recommendation is to stay on 18" rims..

but if i look at the past topics concerning wheels and rims most of you guys have 19" and above mounted on the turbo. is that really a downgrade for the car? what's your experience concerning rim size?
btw i have PSS9 installed..

thx for your inputs
greets from overseas

 

Defiantly stay away from the 20" wheels. You can do the 19" for the street (as most of us have), but make sure you stay with-in the correct tire size / ratio front to back (235/35/19 - 315/25/19). You'll notice a different "ride" feel with the 19" compared to the stock 18". It will defiantly handle better with the 18". Some people have triggered the PSM around corners with 19".

If you plan on taking the car to the track, make sure you stick with the 18" and mount some R-comp tires.

Also as your car is lowered, I would get a wheel alignment all around, check the rear camber settings so that you do not wear out the rear tires prematurely. I would at least get the rear upper links if you do not have them.

Let us know who you make out.

 

ok, thx for the information - keep you posted

 

You will lose performance as you move from 18 to 19.

People will say 'for street use it will be OK'....It is a trade of that many make. I won't, given the road surfaces I tend to drive on.

 

The car was designed for optimum handling with 18s". They weigh less and there is a wider choice of tires at cheaper prices. This doesn't mean you have to keep the stock rims. The best quality rim is a monoblock forged. Stay away from cast wheels. Three piece wheels look nice but only the centers may be forged and the outers/inner barrels are not which are more susceptible to street use damage (ie going out of round) (Ask me how I know). They are also heavier than a single piece forged wheels. With PSS 9 you just have to be a bit more careful on wheel/tire width and offset. Much past 235f and 305r you could have rubbing issues. Make sure you keep the revolutions per mile within 2% of stock overall and front to rear (check the manufacturer spec page as stated tire size is not reliable).

 

I was on 19 > 18 > 19 again during this month, 18 definitely ran more smooth but 19 looks more cool...