03-04-2005, 11:52 AM
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#1
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Registered User
Join Date: Feb 2005
Location: PA
Posts: 28
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17", 18", 19" Wheels?
I am a new Boxster owner. I have a 2001 Boxster S with 17" wheels. Besides looking cool, are there any advantages or disadvantages of upgrading to larger wheels. How is the ride affected?
Don
Last edited by Dons986; 03-04-2005 at 11:56 AM.
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03-04-2005, 12:08 PM
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#2
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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The larger the wheel, the lower the profile of the tire. Generally, this will give marginally better handling with the penalties being a much harsher ride and much quicker tire wear. Overall, there is very little air between the road and the wheel.
The trade offs depend on how you feel about the above.
Good luck!
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03-04-2005, 12:11 PM
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#3
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Registered User
Join Date: Feb 2005
Location: PA
Posts: 28
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This is my first sports car and I think that the ride is harsh enough with 17" wheels. I think that I'll stay with that size.
Don
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03-04-2005, 12:34 PM
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#4
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Registered User
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
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its not necessarily strictly the size affecting ride quality.
You can have a set of lightweight wheels at 18" which will be
smoother than a much heavier set of 17" and possibly even 16" wheels.
In my experience wheels at 20 pounds and below offer quicker accleration and
their reduced weight allow the springs and shocks to react in a much less severe manner.
THe most important factor in my opinion is the spring rate. You want to have springs hard enough to keep the the car from bottoming out while still allowing shock travel. I think coilovers are the best solution. You can tinker endlessly with the ride height to find the best setup with wheels,tires,suspension. A perfectly setup sportscar will never fell like a Lexus but it can feel pretty darn nice for daily use.
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03-04-2005, 01:41 PM
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#5
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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Its not necessarily strictly the size affecting ride quality.
You can have a set of lightweight wheels at 18" which will be
smoother than a much heavier set of 17" and possibly even 16" wheels.
I guess I will disagree with this statement. I am not saying that size is the ONLY thing impacting harshness, However, if you use a lower profile tire, irrespective of the weight of the wheel, you have less "cushioning space" than with a higher profile tire. Hence, more of the noise, vibration, and jolting will be transmitted to the wheel and upward to you.
To wit, If a have a wheel that weights just 2 lbs but I have a half inch of profile, my money says that the ride will be very harsh indeed.
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03-04-2005, 01:42 PM
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#6
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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Good move. Think of the money you will save and spend on more useful things, like Porsche apparel and such!
Quote:
Originally Posted by Dons986
This is my first sports car and I think that the ride is harsh enough with 17" wheels. I think that I'll stay with that size.
Don
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03-04-2005, 03:43 PM
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#7
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Registered User
Join Date: Nov 2003
Location: Illinois
Posts: 3,033
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The ride will probably be a tad "harsher" and you may accelerate slower as well unless the larger wheels are as light or lighter than your current wheels due to the extra rotational mass.
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03-04-2005, 09:10 PM
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#8
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Registered User
Join Date: Nov 2004
Location: Singapore
Posts: 212
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I think 18" makes a nice compromise in terms of looks, handling and comfort.
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03-04-2005, 09:40 PM
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#9
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Registered User
Join Date: Feb 2005
Location: Palos verdes, CA
Posts: 95
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i got 19inch
i use to have the 17 inch and now i got 19's.
the ride is surprisingly okay. i also dropped it about 1.2 inch with eibach springs.
i was fairly careful around bumps and potholes even with the 17's.......
but the 19's just look soooooo much nicer. complete chick magnet.
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03-04-2005, 09:44 PM
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#10
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Registered User
Join Date: Nov 2003
Location: Illinois
Posts: 3,033
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Quote:
Originally Posted by clubhead
I think 18" makes a nice compromise in terms of looks, handling and comfort.
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I completely agree. The 18" Carrera light wheels were the deal maker for me on my car. They show off the beautiful brakes nicely and are even lighter than the standard 17's to boot. They are still my fav Porsche wheel.
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03-04-2005, 10:37 PM
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#11
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Registered User
Join Date: Nov 2004
Location: Singapore
Posts: 212
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Quote:
Originally Posted by Adam
I completely agree. The 18" Carrera light wheels were the deal maker for me on my car. They show off the beautiful brakes nicely and are even lighter than the standard 17's to boot. They are still my fav Porsche wheel.
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Are they really that light? Mine came with 18" Sports Classic II. Driving me nuts to clean those calipers  I seriously thinking of getting them Carreras... Only thing they cost so damn much
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