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YOUR RESEARCHThose terrific huge wheels....
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Run 19's
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I run 19's with no issues, and my jock strap may be stuffed, but it's stuffed with 100% free-range grain-fed California whitesnake.
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Although very seldom used, "donk" may also be used as an abbreviation for "badonkadonk" (noun, "buttocks of exceptional quality and bounce") - so you'll want to ensure that the party to whom you are speaking understands that you are referring to his vehicle and not inappropriately alluding to the posterior of his wife/girlfriend/sidechick.
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Suggestion
It does sound as though 18" wheels would be the better solution (as well as replacing those coolant pipes pronto!)
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Some of us running 19's recognize that the car is not set up for street racing, and we probably don't deserve to be arrested, or even cited...well, at least for anything related to increased wheel size...
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Although very seldom used, "donk" may also be used as an abbreviation for "badonkadonk" (noun, "buttocks of exceptional quality and bounce") - so you'll want to ensure that the party to whom you are speaking understands that you are referring to his vehicle and not inappropriately alluding to the posterior of his wife/girlfriend/sidechick.
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that came with my new to me 02 cab, seem to be rubbing on what I think is the coolent pipes running though the front wheel wells. These are the 19" '07 Carrera 4s wheels the car came with.
It's worse on the right side, has rubbed clear though to the metal. Has anyone been able to relocate the pipes slightly inboard? How thick are the pipes, and should I be thinking of doing something about either replacing or reinforcing them?
While 18" wheels would be the ideal solution, I really do like the look of the 19's. I think I will try spacers. I think 5mm should do it. Any recommended vendors?
Tell us please....
What are the wheel offsets and widths?
And, what are the sizes of your tires?
I've been told by several wheel companies that 19" will work but you have to be careful.
Here is what they recommend:
Size: 19x8.5 Front & 19x11 Rear
Offset: ET55 Front & ET62 Rear
Front tire - 235/35/19
Rear tire - 295/30/19
What do you think?
Liking the look of bad engineering is not wise. Form follows function. The stock wheels on Gen 1 and 2 996s was 17" and the option was 18". Putting 19's on a car that was designed around 18s is like stuffing your jock strap with sweat socks. You might like the look but its all posing.
JI never ceases to amaze/impress.
* jock straps stuffed with sweat socks: NOT guilty. I am Asian and have a small weiner...proud proof that it is NOT the size
* posing: guilty as charged. I have a full aero sports car (that is also, GASP...a cab and tip) that WILL never see the track and will never be driven to its fullest potential
OP, my car came with 19s and have had zero issues with tires rubbing on coolant pipes. Keep em if you like em.......and do not mind the haters
I run 19's with no issues, and my jock strap may be stuffed, but it's stuffed with 100% free-range grain-fed California whitesnake. As long as you do the math and ensure that the outside diameter of the wheel+tire combination is within spec and the offsets are correct, there is NO mechanical difference as far as fender/tire clearance.
One other RL member I can recall had issues with tire/fender interaction and it was resolved with an alignment. I recommend the same for OP.
Seen your avatar pic, Ireland?
Just kidding, I know you're all about
not
posing...
I know, I know, I'll step off - I don't want to incur the wrath of the Sherman Oaks Octogenarian Army...
You never hear butter complaining about the size of the churn, am I right?
How can this be? St. Ireland, the Patron Saint of Honkies, has decreed that the car was "designed around 18's."
I guess this means all those morons running 17's must also be posers...
This is where I separate from the rest of the herd.
My '03 C4 cab came with 18" optional wheels.
Frankly, anyone who could actually extract additional street performance from the larger wheels should probably be arrested for reckless driving.
OTOH, if you do a lot of "track days", then a good friend has a Cayman with a set of track wheels/tires. The track set up is only for clear sunny days - as the tires are slicks.
There is a reason why F1 has three "types" of race tires. Dry, semi-wet and rain. There is a significant difference in lap times on the three different types.
Some of us are guilty of extreme macho bullsh*t. The rest of the world shouldn't be exposed to people like this.
The larger wheels actually probably hurt performance more than anything. It's good to have some measure of sidewall that can flex: helps absorb bumps and keep the tread stuck to the road. For fun, go look at youtube videos of anyone with a high-performance car with low-profile tires trying to hook up on a drag strip.
If you're only rubbing on the fronts, spacers could work.
However I would worry about the rears rubbing if you truly have WB c4S wheels on your NB car.
Sell the 19s and get wheels that fit your vehicle. The net result will most likely be some added cost but maybe not to much. Personally, I'm a big fan of 18s from Wheel Dynamics but it's your car and your money.
...because a larger contact patch for better braking is unacceptably reckless? Beyond that, I'm not sure what additional street performance one would yield from larger tires. Acceleration from a dig is worse since it's harder to keep the tires planted and cornering is also negatively affected by bouncy short sidewalls.
A large contact patch on a tire that has has enough meat to be useful is great; having to maintain the same OD when increasing wheel diameter means the tires get thinner and thinner, which is not optimal for all driving conditions.
Along the lines of what Architect mentioned - ever seen slow-motion video of a top fuel dragster or a pro-mod race car hooking? You can actually see the entire tire deforming as the hub starts turning and tries to rip the tire apart. If they put massive wheels with 2" thick tires on a dragster, they'd blow the tires up ever time.
...so cheer up! Some of us running 19's recognize that the car is not set up for street racing, and we probably don't deserve to be arrested, or even cited...well, at least for anything related to increased wheel size...
Thanks for all the replies. I would not have chosen this size wheel myself, as I am of the age that grew up thinking 70 series tires were "low profile". The car was such a sceaming deal that I would have purchased it if it were running donks. I do like the fact that they are OEM, Porsche, albeit for a newer model. Plus, the wife likes them. (no small thing, that).They are not rubbing in the rear, just slightly in front. I have ordered 7mm spacers for the front, we will see what happens.
+1 internet point for correctly using "donk" in a sentence.
2 bonus points for being a Porsche forum member and doing same.
For the donk uninitiated, donks have RIDICULOUSLY oversized wheels - at least 30" or more - and are typically but not always thematic (McDonald's, Skittles, Sponge Bob are popular themes).
Although it looks like it would rhyme with "honk," the vowel sound is often more like "oak" or "coat" - phonetically, you'd have something like "dough-nk"
Although very seldom used, "donk" may also be used as an abbreviation for "badonkadonk" (noun, "buttocks of exceptional quality and bounce") - so you'll want to ensure that the party to whom you are speaking understands that you are referring to his vehicle and not inappropriately alluding to the posterior of his wife/girlfriend/sidechick. Remember, clarity in thought and speech helps one avoid unnecessary shanking.
Donk-ifying a lesser car (if, for example, you do not have sufficient liquidity to purchase a slammed'n'bagged Impala or a murdered Escalade) may be sufficient to impress yo fam and possibly even garner the attention of one or more hoe(s).
