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  • 1965 - 1973 Classic Mustangs -General/Talk-
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handling experts

  • Thread starter Thread starter Edbert
  • Start date Start date May 6, 2004

Edbert

Founding Member
Jul 13, 2002
3,548
32
109
Austin TX
May 6, 2004
#1
  • May 6, 2004
  • #1
I posted this message in the 4.6 forums (where it really belongs), but I figured there are many handling experts here who might not see this in that forum...and I trust you guys
_______________________________________

Ever hear of a rear sway-bar breaking? I pulled into a parking lot that had a rather abrupt ramp and heard a pretty loud ka-thunk followed by a rattling sound. I figured I had scraped a muffler and went down the street to a muffler shop. Once it was on the rack it was obvious that the sway bar was broken clean off right behind the rear bolt on the passenger side. We called Ford for a replacement part and found that my 97 Cobra had a 26mm hollow bar and the only available parts were from a later Cobra and they were smaller and solid. Now I am no expert (oarticularly with these late models) but a larger diameter hollow bar is stiffer and lighter than a smaller solid bar right?

Anyhow, rather than pay $175 for a smaller heavier bar I told them to cut off the other side and drove home without a rear bar. I never pushed the lateral Gs to any serious level but the handling overall seemed only slightly different. Initial turn-in was a little more abrupt and I lost some of the push. The only chassis/suspension mods I have are Tociko shocks/struts and FMS Springs that lowered me 1.5 inches in front and 1 in back. I have a couple of questions for the experts out there though:

1.) Am I right that a larger and hollow bar is better than a smaller solid one?

2.) Is it unsafe to drive without a rear bar until I can find a replacement?

3.) What bar should I get, manufacturer and size?

4.) What might cause a bar to break? This car was never autocrossed or drag raced, it only has 65K miles on the 7.5 year old chassis.

5.) last question while I am at it...I am putting BBK caster/camber ajusting plates on it soon, what are the preferred settings to give the alignment shop for sporty street/daily driving?
 
R

Ronstang

New Member
Apr 4, 2004
1,294
0
0
Houston Texas
May 6, 2004
#2
  • May 6, 2004
  • #2
1) It takes a larger hollow bar to have the same resistance to roll as a smaller solid bar so more than likey they are the same or similar....IIRC

2) It is not unsafe to drive witout a rear bar.

3) Get the one from Ford, it is a direct replacement for yours except it is a solid bar.

4) The hollow bars are notorious for breaking, all my friends with Cobras from that period have broken at least one and one guy broke 2. They replaced them with the solid bar and never had anymore problems.
 
J

jesserose17

New Member
Aug 21, 2003
219
0
0
Southern CA
May 6, 2004
#3
  • May 6, 2004
  • #3
Some road racers prefer no rear sway bars, so bascially it's up to individual preferance. Ronstang is correct in saying that it's safe to drive without rear sway bars, assuming you get accustomed to the handling style. I like mine without rear sway bar.
 

66P51GT

New Member
Nov 7, 2003
721
1
0
Cerritos, CA
May 6, 2004
#4
  • May 6, 2004
  • #4
Ditto on Ronstang plus..

5) -1* Camber, +6* Caster, 1/16 toe-in

These were the street setting I ran on my '99 Cobra. When Autocrossing, I'd adjust the tie-rods to run toe-out and return them again before getting back on the street. If you are concerned about tire wear, run closer to 0* camber.

Also, best caster/camber plates you can get are from Maximum Motorsports.
 

Edbert

Founding Member
Jul 13, 2002
3,548
32
109
Austin TX
May 6, 2004
#5
  • May 6, 2004
  • #5
Thanks for the feedback guys, you're the best gang on the net! I posted that same thing in the 4.6L tech section and got zero replies, that is what usually happens when I ask questions over there. I don"t know if it is the volume of posts or what?

BTW...after another 1.5 to 2 hours of driving the car I think I like it better now. We'll see how it takes high speed sweepers at 0.7 or more Gs before I decide for sure.

THANKS AGAIN!
 
V

vobraman

New Member
Dec 2, 2003
144
0
0
May 7, 2004
#6
  • May 7, 2004
  • #6
I have a 1995 Cobra and broke mine about 4 years ago. Went to the dealer and they replaced as a result of some kind of recall.
brian
 
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