Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 01-09-2011, 02:17 PM   #1
Registered User
 
Join Date: Jan 2011
Location: Philippines
Posts: 32
Talking Wheel setup questions

Hi guys,

I just got a 97 boxster for my "toy car" hehe. Planning a lot of mods to it. Though I have a few questions I hope I could get answers.

1. What are the best wheel offsets for the Boxster non-s? Not too narrow. Wide looking but not too wide that will portrude out of the wheel well. Also planning on using lowering springs by h&r.

2. Will 20" wheels fit?

3. How about the width of the rear wheel? Will a 11J fit? (for 19's)


Hope to get your inputs guys.

Thanks!


Last edited by gunman168; 01-09-2011 at 02:30 PM.
gunman168 is offline   Reply With Quote
Old 01-09-2011, 03:37 PM   #2
Registered User
 
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,370
Hate to say

but the '97 model was found by Porsche to not be strong enough to even take 18s. They had to beef up the whole rear structure of the body in order to offer optional 17s on the '98s and later models.

Rear body structural change for '98 included redesigned wheel wells and coil spring mounts, lower engine compartment bulkhead, rear wall crossmember and rear axle mount reinforcements.

Having said that, there are folks who have run 18s on street cars where they didn't put too much stress on them at the speeds they drove.
mikefocke is offline   Reply With Quote
Old 01-09-2011, 06:34 PM   #3
Registered User
 
Johnny Danger's Avatar
 
Join Date: Nov 2008
Location: Massachusetts
Posts: 4,810
Garage
The latest rumor is that Lady Gaga has 47 inch wheels on her boxster.
__________________
Don't worry I've got the microfilm.
Johnny Danger is offline   Reply With Quote
Old 01-10-2011, 09:36 AM   #4
Registered User
 
rdancd816's Avatar
 
Join Date: Dec 2005
Location: Coppell, TX
Posts: 317
Actually Porsche DID offer a 17" wheel option on the "97's". It is correct, however, P-car does NOT recommend fitting anything larger than 17" on that model year. I do know Randall and a few others have had no problems with 18's. It's kind of an "at your own risk" proposition. My Boxster had the 17" option and not much else. I have owned the car for five years and love it. After year one (which was expensive) it's been rock solid.
__________________
"97 Boxster" Guards Red, Coppell, TX 36,500 miles
2010 Mazda CX-7 AWD, Turbo, Grand Touring
rdancd816 is offline   Reply With Quote
Old 01-10-2011, 02:28 PM   #5
Registered User
 
Join Date: Jan 2011
Location: Philippines
Posts: 32
Like what problems should I expect if I fit in 19's? Will a strut bar and/or mid brace help?

I really like big wheels lol

How about my question # 1 and 3?


Quote:
1. What are the best wheel offsets for the Boxster non-s? Not too narrow. Wide looking but not too wide that will portrude out of the wheel well. Also planning on using lowering springs by h&r.

3. How about the width of the rear wheel? Will a 11J fit? (for 19's)

Last edited by gunman168; 01-10-2011 at 02:32 PM.
gunman168 is offline   Reply With Quote
Old 01-26-2011, 07:18 AM   #6
Registered User
 
Join Date: Jan 2011
Location: Philippines
Posts: 32
Quote:
Originally Posted by gunman168
Like what problems should I expect if I fit in 19's? Will a strut bar and/or mid brace help?

I really like big wheels lol

How about my question # 1 and 3?
Anyone care to give input?
gunman168 is offline   Reply With Quote
Old 01-26-2011, 08:26 AM   #7
Registered User
 
Johnny Danger's Avatar
 
Join Date: Nov 2008
Location: Massachusetts
Posts: 4,810
Garage
This topic has been commented upon ad infinitum. First of all, one would have to be a fool to want to put 20 inch wheels on a boxster. Secondly, unless you plan on modifying the rear fenders (and I am not referring to just rolling the fender lip), regardless of offset, there's no way an 11 inch wheel will fit on a 986 boxster. Instead, you should be looking for wheels that meet the following specs : Fronts - widths of either 8 to 8.5 inches with offsets ranging between +40 to +45 et . Rears - widths of either 9.5 or 10 inches with offsets ranging from +35 to +40 et depending upon your suspension set-up and how aggressive you want your fitment to be.

Addendum: If you subscribe to Porsche's recommendation not to exceed running 17 inch wheels on the "97 model , then any thought of changing your current set-up is extraneous .
__________________
Don't worry I've got the microfilm.

Last edited by Johnny Danger; 01-26-2011 at 08:50 AM.
Johnny Danger is offline   Reply With Quote
Old 01-26-2011, 08:37 AM   #8
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,604
The risks are somewhat difficult to define but you could possibly expect any of the following:

1. Poor/unknown/unpredictable handling due to unexpected/unpredictable flex in the body/suspension
2. Excessive/abnormal wear of suspension components
3. Excessive/abnormal tire wear
4. ... etc. You get the idea.

Strut bar and mid-brace might help ... or might make things worse. Unknown and impossible to predict with any certainty because "it all depends ..."

Of course, if you drive like my mom and never go over 45mph on a straight and never exceed 20mph in any corner, you'll probably be ok with almost anything.

But if you drive it like a Porsche, then all bets are off.

__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is online now   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 03:37 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page