School me on sway bars - hollow vs solid - Miata Turbo Forum - Boost cars, acquire cats.

Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...
Sponsored by:
Sponsored by:

School me on sway bars - hollow vs solid

Old 04-25-2018, 04:59 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Dec 2017
Location: Tulsa, Oklahoma
Posts: 54
Total Cats: 1
Default School me on sway bars - hollow vs solid

At the autocross meet earlier this month a couple of competitors were having a discussion which I was just passively listening in on.
One was mentioning to the other that he can get a different sway bar and still stay in class and specifically mentioned that the best choice is a hollow front sway bar.

What (if any) are the practical advantages of the hollow sway bar?
BGordon is offline  
Old 04-25-2018, 05:06 PM
  #2  
Junior Member
 
Join Date: Dec 2014
Location: Boston, MA
Posts: 187
Total Cats: 13
Default

Equal stiffness and less weight
PatCleary is offline  
Old 04-26-2018, 12:08 PM
  #3  
Junior Member
 
Join Date: Aug 2014
Location: SE Michigan
Posts: 178
Total Cats: 12
Default

What Pat said.

Torsion/Sway bar stiffness is proportional to the 4th power of the bar's diameter, and because of this the stress distribution is such that the outside of the bar is contributing dramatically more to the stiffness than the metal on the inside. The exact center of the bar is theoretically contributing nothing to the stiffness of the bar, but extra metal weighs more than air. Hollowing it out gets you most of the stiffness with a lot less weight.
OptionXIII is offline  
Old 04-26-2018, 03:29 PM
  #4  
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,865
Total Cats: 1,702
Default

[/thread]
__________________
Trackspeed Engineering
High-Performance Turbo Specialists - Sunnyvale, CA - 650-701-7223 - Email us!
Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
Savington is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
icantthink4155
Miata parts for sale/trade
9
07-19-2010 09:30 AM
Nagase
WTB
2
06-02-2010 05:26 PM
redrider706
WTB
0
03-03-2010 07:40 PM
autox_axela
WTB
0
05-13-2008 04:10 PM


Thread Tools
Search this Thread
Quick Reply: School me on sway bars - hollow vs solid


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.