Solid Sway bars? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 05-20-2006, 01:46 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default Solid Sway bars?

Are they available to replace our hollow bars



Swaybars: Fitment Front Rear
Stock GS/GTP 1-1/8" (28mm) Solid 5/8" (16mm) Solid
Stock Intrigue GLS 1-13/16" (36 mm) Solid 11/16" (17.5mm) Solid
Impala Police/Taxi Package 30mm solid bar 10287944; bushing 10289144 (order 2)
32mm solid bar 10287717; bushing 10287711
34mm solid bar 10404184; bushing 10403188
19.2mm solid bar 10274610 $59.17
2000SilverBullet is offline   Reply With Quote
Old 05-20-2006, 02:44 PM   #2
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Unless there'* something funky about the 2k'* I don't know about, you have a solid bar.

All 4 of my FE2 bars are solid.

Some early FE1 bars in 92 ONLY (some 91'* maybe) were hollow.
willwren is offline   Reply With Quote
Old 05-20-2006, 03:49 PM   #3
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Paul...I agree with Willwren..pretty sure 87-99 at least are solid.
BillBoost37 is offline   Reply With Quote
Old 05-20-2006, 10:04 PM   #4
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Well maybe we have discovered an anomoly.

My front is definitely positively hollow and 30 mm
My rear is solid and 19 mm.

My code written on the spare tire cover says FE2.
2000SilverBullet is offline   Reply With Quote
Old 05-21-2006, 11:22 AM   #5
Senior Member
Posts like a 4 Banger
 
Join Date: May 2004
Posts: 124
Thanks: 0
Thanked 0 Times in 0 Posts
T-Keith is on a distinguished road
Default

A solid bar will not be much stronger then a hollow bar of the same size. The strength comes from the material farthest from the center. A hollow bar is smarted because it has less weight then a solid bar of the same strength.
T-Keith is offline   Reply With Quote
Old 05-21-2006, 12:39 PM   #6
Senior Member
True Car Nut
 
toastedoats's Avatar
 
Join Date: Sep 2004
Location: Fitchburg Ma _ToastedRice_
Posts: 6,837
Thanks: 0
Thanked 0 Times in 0 Posts
toastedoats is on a distinguished road
Default

Mark Fahey has aftermarket swaybars on his SSEi, he got them from this company: http://www.sanerperffab.com
toastedoats is offline   Reply With Quote
Old 05-21-2006, 02:38 PM   #7
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Quote:
A solid bar will not be much stronger then a hollow bar of the same size. The strength comes from the material farthest from the center. A hollow bar is smarted because it has less weight then a solid bar of the same strength.
Wrong.
A solid bar has a higher torsional strength than a hollow one.

Compare the strength of twisting a hollow drinking straw and then compare to twisting a solid similarly sized solid plastic rod.
Big difference.

The strength of a sway bar increases by 4th power of it'* diameter.
2000SilverBullet is offline   Reply With Quote
Old 05-21-2006, 04:38 PM   #8
Senior Member
Posts like a 4 Banger
 
Join Date: May 2004
Posts: 124
Thanks: 0
Thanked 0 Times in 0 Posts
T-Keith is on a distinguished road
Default

The hollow bars are not equivlelent to a drink straw, they are much thicker walled.

The material in the center does nothing compared to the material on the outside. It'* basic engineering, that'* why they make things like I beams and C-channel. All of the strength is in the outside. Obvously a solid bar will be stronger, but not nearly as much as increasing the diameter a small bit.

The strength is determined by moment of intertia. Intertia is the pi times the diamter to the forth power divided by 64.

So a 2" solid bar would have a moment of .785, a 2" hollow bar with a .5" diamter hole through the center would have a moment of .785 - .003 = .782, barely a difference. Even a 1" hole would give you a .736 Moment.
T-Keith is offline   Reply With Quote
Old 05-21-2006, 04:49 PM   #9
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

But the solid bar still has the higher moment. Handlingwise, it'* better.
J Wikoff is offline   Reply With Quote
Old 05-21-2006, 04:52 PM   #10
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

That might be true for a thick walled bar but the hollow bars we have are very thin walled, as you can see in pics people have taken of broken and cracked ones.

The moment of Inertia of a thin walled bar = M(mass) x R(radius)squared

The moment of Inertia of a solid bar = 1/2 M x R squared

Stress = Torque x R / Inertia

So a solid bar of the same diameter is twice as strong in torsion as a thin walled bar.

I know these things because I am an Engineer.
2000SilverBullet is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Sway Bar swap out. SSEi Bars Installed! Damemorder Performance, Brainstorming & Tuning 56 04-20-2004 05:47 PM
SWAY BARS!?!? Buddha Jones Performance, Brainstorming & Tuning 57 04-09-2003 11:44 AM
Sway Bars Buddha Jones Performance, Brainstorming & Tuning 0 04-01-2003 10:54 AM
New Front / Rear Sway Bars and Links?? Hector?? CDecker 1992-1999 8 02-01-2003 02:44 PM
Sway Bars and Strut Bars, Interested? 99BonnevilleSE General GM Chat 4 10-21-2002 04:07 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:51 AM.


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.