12-22-2016, 08:57 AM
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#1
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Registered User
Join Date: Jun 2011
Location: kentucky
Posts: 5
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Another Wheel & Tire question - 2001 986 Base Model
I have a 2001 Boxster Base Model. Have a local set of Cayman wheels/tires and wondering if they will fit up safely without modification? I understand that Porsche beefed up supsension in 2000 but i would like to run without spacers. Thanks!
Fronts:
18x8
57 offset
235/40/18 tires
Rears:
18x9
43 offset
265/40/18 tires
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12-22-2016, 10:02 AM
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#2
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Registered User
Join Date: Dec 2015
Location: Denver
Posts: 866
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I've got a 01 S which should be the same wheel well configuration. Recommendations for 18" is:
Front: 225/40 18, 8j or 7.5J; Offset: 50mm
Rear: 265/35 18, 10J or 9J Offset: 47mm for 10j 52mm for 9j
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12-22-2016, 02:54 PM
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#3
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Registered User
Join Date: Jun 2011
Location: kentucky
Posts: 5
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Ive seen the official recommendation but didnt know if moving to this wheel/tire size was dangerous or would even work.
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12-22-2016, 03:06 PM
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#4
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Registered User
Join Date: Dec 2012
Location: FL
Posts: 4,144
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The OEM front tire diameter is 25" and that Cayman front tire is 25.4". I tried to run a 245/40/18 front once (25.7") diameter and it would not clear the front strut lower spring perch.
Even with the OEM diameter it is tight in front diameter wise (with stock struts, coilovers typically don't have as big of a lower spring perch), if the 25.4" fits it will be tight, you should test fit it to be sure.
Should be plenty of room in the back for that tire though.
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12-23-2016, 09:40 AM
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#5
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by steved0x
The OEM front tire diameter is 25" and that Cayman front tire is 25.4". I tried to run a 245/40/18 front once (25.7") diameter and it would not clear the front strut lower spring perch.
Even with the OEM diameter it is tight in front diameter wise (with stock struts, coilovers typically don't have as big of a lower spring perch), if the 25.4" fits it will be tight, you should test fit it to be sure.
Should be plenty of room in the back for that tire though.
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Front & rear tires will fit fine on 986 wheels, don't know about the 987 offset wheels.
Rear tire is tall enough to have a noticeable loss of acceleration, unaceptable on a 2.7L 986
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12-24-2016, 11:10 AM
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#6
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Registered User
Join Date: Jun 2011
Location: kentucky
Posts: 5
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Well...then are there any more modern factory 18's that will fit up to a 986 nicely? I hate the 17" twist style that are on it now.
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12-24-2016, 11:56 AM
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#7
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Track rat
Join Date: Nov 2006
Location: Southern ID
Posts: 3,701
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Tons of choices. Just make sure you get the right width, offset, and tire diameter for a great fit. Nothing looks worse than cool new wheels that don't fit right.
Search Wheel Enhancement for Porsche Wheels and Accessories
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12-24-2016, 03:10 PM
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#8
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Registered User
Join Date: Dec 2012
Location: FL
Posts: 4,144
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Quote:
Originally Posted by kentukblue
Well...then are there any more modern factory 18's that will fit up to a 986 nicely? I hate the 17" twist style that are on it now.
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Get those Cayman wheels and some new tires, all set
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12-27-2016, 07:16 AM
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#9
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Registered User
Join Date: Oct 2015
Location: Jakarta, Indonesia
Posts: 10
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Quote:
Originally Posted by kentukblue
I have a 2001 Boxster Base Model. Have a local set of Cayman wheels/tires and wondering if they will fit up safely without modification? I understand that Porsche beefed up supsension in 2000 but i would like to run without spacers. Thanks!
Fronts:
18x8
57 offset
235/40/18 tires
Rears:
18x9
43 offset
265/40/18 tires
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Your wheels' widths, offsets and tires' sizes would be identical to mine; I'm currently running 987 Boxster S' wheels on my base 2003 Boxster.
No spacers needed, no rubbing.
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12-27-2016, 10:30 AM
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#10
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Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,567
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