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YOUR RESEARCHNew to Porsche have questions : )
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Replace 100k components
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Suggestion
I think a wiser move would be to spend the money on a good pair of coil overs and lower the car 10-20mm and you�ll magically find the car �looks� how you wanted it AND you got new suspension components out of the deal to replace the 100k components on the car now.
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Suggestion · Original poster
I have some changes I�m going to make but have some tech questions.
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Suggestion
As im sure you know, the 996 was designed to run a maximum wheel diameter of 18�.
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Replace 100k components
No successful repair reported for this finding.
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Suggestion
I think a wiser move would be to spend the money on a good pair of coil overs and lower the car 10-20mm and you�ll magically find the car �looks� how you wanted it AND you got new suspension components out of the deal to replace the 100k components on the car now.
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I just picked up a 1999 996. It has just over 100k on it but is amazingly clean and well cared for. I have some changes I�m going to make but have some tech questions.
Anyone know what wheels these are and what the offsets are? I�m wanting to go to a 20� rim but want to make sure I get the fit right
99� 996
They look like Sport Edition Cup 4 wheels. They are inexpensive, Chinese-made cast wheels.
Congrats on the car. It looks great.
As im sure you know, the 996 was designed to run a maximum wheel diameter of 18�. There�s no official recommendation for a 20� wheel, and I think rubbing is a serious concern. Hopefully you can find somebody with advice in that area. You may have to roll the fenders or make other modifications.
I'd advise against that. The ride is going to be really harsh and you'll probably end up bending wheels. Plus it won't look very well-proportioned. But, to each his own!
Joking aside, if you've never owned a Porsche before you need to find someone that's a Porsche guru near you and have them look the car over to tell you "it's in great shape". Not trying to be the wet-rag here, but there's a lot of gotchas to these cars and if you don't know them VERY well, you're just guessing.
It does look great!
As mentioned earlier, don't put any larger wheel than what the owner's manual says you can. Porsche wheel/tire engineers know they're business...
Put also, welcome to the Porsche life! Drive it hard and fast and enjoy it!
Seriously, I�d have it looked over by someone who knows Porsche�s as mentioned earlier. Then I�d address any pressing concerns, then I�d drive it for a while. By adding 20�s I suppose you are after a certain �look�. You�ll find out that Porsche engineers were very meticulous in picking 18� wheels for this car, 20�s will actually raise the car an inch, ride like garbage, and put undue stress in the suspension. I think a wiser move would be to spend the money on a good pair of coil overs and lower the car 10-20mm and you�ll magically find the car �looks� how you wanted it AND you got new suspension components out of the deal to replace the 100k components on the car now. Double win.
All good advise and well absorbed. The car is currently on 19� wheels and does great... I am consider 18s. I am wanting a certain look but not at the expense of perfomance. Being new to the Porsche world I don�t want to make undo complications for myself.
I�ve just been looking for info on the rims that are currently on it and haven�t been able to find solid info about offset and technical data
As far as having it looked over that is a unique situation. I live in Midland Texas (do some Reseach on the economy here) it�s not the easiest service situation, so I�m doing a lot of homework
I used to live in Midland, and worked on aircooled Porsche’s when I was there.
There were several good Porsche mechanics back then, but they’re likely retired now.
Lubbock used to have the closest Porsche dealership back then.
I bet there is someone with some knowledge there somewhere.
A few months back there was a 996 roller for sale in Midland.
I toyed with the idea of buying it and making a trip back to see friends who still live there and then tow it home.
Take off the wheels and see if the offset is marked on the back.
Or just measure them.
Offset
= 25.4 * (Backspace -
(Rim's Tire Width + 1) / 2)
You can then come fairly close that way.
When I measured an unknown BMW wheel, I came within a couple of mm of what I eventually was able to determine what they should have been.
http://www.gtsparkplugs.com/Backspac...alculator.html
If you want a low wheel gap look I'd get smaller wheels and put your money into suspension. Then you'll have the certain look
and
the certain performance.
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