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

Reply
 
LinkBack Thread Tools Display Modes
Old 05-18-2014, 06:33 AM   #1
I am my own mechanic....
 
Timco's Avatar
 
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,433
Does a front strut brace make a noticeable difference?

See them occasionally. Anyone run them?

__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
Timco is offline   Reply With Quote
Old 05-18-2014, 10:31 AM   #2
Registered User
 
Join Date: May 2008
Location: Toronto
Posts: 2,656
Doesn't need it since it's not front engine/front wheel drive
ekam is offline   Reply With Quote
Old 05-18-2014, 11:25 AM   #3
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,987
i'll disagree there. imagine a hard corner. inside wheel lifts and all weight on outside wheel. outside wheel trying to turn while entire mass of car trying to continue in a straight line. wheel will try to move inboard until all play in suspension taken up, at which point it will try to push top of strut outboard with a force equivalent to the cornering g (say 1 g or more). if top of strut moves then you lose the benefit of your camber and reduce the amount of tire in contact with the ground - not a good thing when cornering at 1 g.

folks will argue that the boxster already has a front brace in that it has two diagonal braces coming forward from the firewall to the strut tops. these braces wo't do much to stop the tops of the struts from spreading apart, however, which is where the third brace comes into play - to stoo the tops of the struts from spreading apart. that's why they're aluminum or carbon fiber - they only need tensile strength not compressive.

required for the street, probably not. on the track wih r-comps, probably why not.
The Radium King is offline   Reply With Quote
Old 05-18-2014, 04:40 PM   #4
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,612
In theory, a front strut brace should help, but I never noticed any difference on the street or on the track. They are fairly affordable and they look cool so if you really want one, go for it, but don't expect any big handling improvements.

This is the model that I had installed on my Silver Boxster:



__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote
Old 05-18-2014, 05:01 PM   #5
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
What about the rear lower ones tom ?
In was thinking of calling you last week whilst ordering parts .
But then realized I was getting carried away as usual
If its a worthwhile low cost mod I'll do it in the future ...
Ian c is offline   Reply With Quote
Old 05-19-2014, 08:24 AM   #6
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,682
Garage
Naw, save your $$ on this. Our cars have the same front end as a 996 GT3 Cup car and they don't need a strut brace while running racing slicks in ALMS or Grand Am. If you like it for the eye candy, go for it.
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor
Topless is offline   Reply With Quote
Old 05-19-2014, 10:03 AM   #7
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,987
i think age of car plays a role? new cars may not benefit, but older cars, cars used hard on rough roads, may have lost some structural rigidity and benefit?
The Radium King is offline   Reply With Quote
Old 05-19-2014, 11:34 AM   #8
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,612
Quote:
Originally Posted by Ian c View Post
What about the rear lower ones tom ?
In was thinking of calling you last week whilst ordering parts .
But then realized I was getting carried away as usual
If its a worthwhile low cost mod I'll do it in the future ...
Sorry, but I can't say anything about the rear lower stiffeners as I have never tried them.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote
Old 05-21-2014, 07:28 AM   #9
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
I might try one once she has a few hours on the new suspension ...
I'm seeing them on eBay for around 100 bucks . What's the worse can happen
Ian c is offline   Reply With Quote
Old 05-21-2014, 10:26 AM   #10
Registered User
 
woodsman's Avatar
 
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
Quote:
Originally Posted by Ian c View Post
What's the worse can happen
adding unnecessary weight to a race car that you've spent time and money on removing weight from....
__________________
Death is certain, life is not.
woodsman is offline   Reply With Quote
Old 05-21-2014, 10:43 AM   #11
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
True
I'm going to look inTo it more .
Though at first glance there isn't much info out there as the spec racers aren't allowed to use them I think ?
If there is some flex at the rear , and the braces work , it'll throw another equation into the mix in regards to stiffer rear ARBs .....
Ian c is offline   Reply With Quote
Old 05-21-2014, 11:05 AM   #12
Registered User
 
Allen K. Littlefield's Avatar
 
Join Date: Oct 2006
Location: New Paltz, NY 12561
Posts: 935
Quote:
Originally Posted by Ian c View Post
True
I'm going to look inTo it more .
Though at first glance there isn't much info out there as the spec racers aren't allowed to use them I think ?
If there is some flex at the rear , and the braces work , it'll throw another equation into the mix in regards to stiffer rear ARBs .....
__________________________________________________ ________________
I have a used but perfect set for sale. Back or middle brace, $119.00 new: Front, $129.00 new. Total new $ 248. Set, front & back, for $150 plus shipping. Get back to me off line if interested.
AKL
__________________
'02, Arctic Silver/Graphite Gray, 2.7, TIP, 2nd cat delete, Charlie Chan muffler,de-ambered, Braille Battery, clear tailights, painted bumperettes, clear third brake light, M030 sway bars, F shock tower braces, clear rear deck, '03 side vents. 15mm spacers fore & aft.
Allen K. Littlefield is offline   Reply With Quote
Old 05-21-2014, 11:16 AM   #13
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
Thanks for the offer , but I took the thread off-topic talking about lower rear braces .
Looking at the design of the car , here if anywhere is where one is needed .
Ian c is offline   Reply With Quote
Old 05-21-2014, 11:24 AM   #14
Registered User
 
Join Date: May 2008
Location: Toronto
Posts: 2,656
http://pedrosgarage.com/Site_2/TechnoBrace.html

Pelican Technical Article: Rear Suspension Support - Boxster Pedro Bar - 986 / 987

Last edited by ekam; 05-21-2014 at 11:27 AM.
ekam is offline   Reply With Quote
Old 05-21-2014, 11:27 AM   #15
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
Talking

I know they're available , but like undercar neon lights , are they nesesary ?
Ian c is offline   Reply With Quote
Old 05-21-2014, 11:37 AM   #16
Registered User
 
Join Date: May 2008
Location: Toronto
Posts: 2,656
Quote:
Originally Posted by The Radium King View Post
i think age of car plays a role? new cars may not benefit, but older cars, cars used hard on rough roads, may have lost some structural rigidity and benefit?
Our cars are made of German steel. Have you seen the 356 with a million miles? Do you see that has any extra braces?

Did you see this video?

http://www.autoblog.com/2014/05/14/jeff-zwart-porsche-356-snow-video/
ekam is offline   Reply With Quote
Old 05-21-2014, 12:20 PM   #17
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,987
I had my car on jack stands for a winter while I did a million and one things to it. after about three months the front 'shoulders' had sagged noticeably - gaps between front trunk and fenders changed considerably. this tells me that the frame will distort regardless of german, finnish or remington steel. some people say they notice a difference with a front brace, others do not. the only variables I can see are (a) the person reporting (b) age of vehicle, and (c) suspension and tire mods. so, ymmv. regarding the rear strut tower brace, not a lot of folks report improved handling, but several report reduced rattles, squeaks, etc.

the pedro brace is a different beast as it is designed to work in reverse of a strut tower brace - it is designed to strengthen the rear subframe for compression (ie, the pressed metal pan will try to compress/bend under high cornering load). as per the front brace there are different opinions out there regarding the efficacy of the thing. you could argue that you will see more play in the bushings, etc., in your suspension components than you will ever see in your strut towers and rear subframe.

Last edited by The Radium King; 05-21-2014 at 01:18 PM.
The Radium King is offline   Reply With Quote
Old 05-21-2014, 12:45 PM   #18
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
Sorry to hijack again , but I've just been reading this :
http://986forum.com/forums/general-discussions/10817-driving-impressions-lower-stress-bar.html
I think i will do this modification .
Ian c is offline   Reply With Quote
Old 05-21-2014, 02:45 PM   #19
Registered User
 
Join Date: May 2008
Location: Toronto
Posts: 2,656
Quote:
Originally Posted by The Radium King View Post
I had my car on jack stands for a winter
There's your mistake there. NEVER leave your car on jack stands for winter.

Last edited by ekam; 05-21-2014 at 02:47 PM.
ekam is offline   Reply With Quote
Old 05-21-2014, 03:25 PM   #20
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,987
ah yes, the old molecular change that occurs in german steel when wheels are not in contact with the ground. similar to the change in bone density experienced by astronauts who live in zero gravity for extended periods of time ...

The Radium King is offline   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 08:32 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