Page 1 of 2 12 LastLast
Results 1 to 20 of 29

Thread: Rear anti-roll bar

  1. #1
    Join Date
    Sep 2003
    Location
    Santa Cruz, CA
    Posts
    696

    Default Rear anti-roll bar

    Who here is running a rear anti-roll bar? I've recently upgraded to a widetrack front suspension - along with a green front arb. I'm thinking that I'm going to have to add a rear ARB to re-balance the car. Thoughts?
    Tom "ELV15" Jones
    http://PIErats.com

  2. #2
    Join Date
    Aug 2008
    Location
    San Diego
    Posts
    36

    Default

    You could try balancing the car with softer tires on one end or the other depending. Then go with spring/shock adjustments after the tires, this way you have added no additional parts or weight.
    Scott
    Stalker Chassis #80 W/LS3
    San Diego

  3. #3
    Join Date
    Dec 2007
    Location
    San Jose
    Posts
    934

    Default

    I vaguely recall reading a number of threads on BC that a rear anti-roll bar was not required. A search of Tech Talk should find a couple of them. Truth is though, I have no idea.
    | | Sean

  4. #4
    Join Date
    Sep 2003
    Location
    Santa Cruz, CA
    Posts
    696

    Default

    RV8a, good suggestion, but I run soft tires all around. ;)

    Sean, Yeah. I've seen a number of threads on BC. From what I've been able to determine, the general consensus is that if you stiffen one end of the car you transfer grip to the other end. Since I'm stiffening the front by going to a green ARB (11/16 diameter) from an orange (1/2" dia), I'm thinking that I'm going to have to stiffen the rear of the car or I'll be getting some oversteer.

    Of course, I could always dial out the stiffness by going back to an orange ARB, but I've got the green and want to see how it behaves.
    Tom "ELV15" Jones
    http://PIErats.com

  5. #5
    Join Date
    Oct 2007
    Location
    Athens, GA
    Posts
    125

    Default

    My car has an adjustable rear sway bar, and a standard front ARB (AFAIK). Before buying new stuff, would there be any value in fiddling with the rear sway bar settings? Mine has 4 settings, and came set up at one of the middle positions, so there is room to go either way.
    Brad
    2013 Boss 302 Mustang
    2005 SV Roadsport (gone but not forgotten)

  6. #6
    Join Date
    Sep 2003
    Location
    Santa Cruz, CA
    Posts
    696

    Default

    Brad,

    My car does not currently have a rear anti-roll bar fitted. My understanding is similar to yours - that it is adjustable and could help with any understeer my recent upgrade caused.

    Do you know the diameter of your current front ARB?
    Tom "ELV15" Jones
    http://PIErats.com

  7. #7
    Join Date
    Sep 2003
    Location
    Seattle-ish, WA
    Posts
    353

    Default

    Tom, I saw your other post on BC about ride height. Before I added a rear ARB, Id make sure that the suspension is properly set up to the specs recommended for your configuration and then drive it like a rental car to see how it behaves. If you can get the handling you want without a rear ARB, then you will save a little weight and money. BTW if the green ARB results in too much oversteer, then Id be tempted to revert back to the orange ARB first to see how that compares. Who knows, you might like the handling characteristics of the softer front setup a little better.

    -John
    Westfield SEiW
    2.0L Duratec
    Throttle Steer

  8. #8
    Join Date
    Jan 2004
    Location
    Sunnyvale CA
    Posts
    134

    Default

    I upgraded the front ARB and then I added the rear ARB. The rear ARB is adjustable. This helps out a lot. I was told that the car ships without the rear ARB because the stock front ARB is very weak. I was also told not to add the rear ARB unless I stiffened up the front ARB.
    Rod Swanson

  9. #9
    Join Date
    Sep 2003
    Location
    Newbury Park, CA
    Posts
    2,247

    Default

    Tom

    Have you driven the car enough to see a difference widetrack vs standard?

    Does it oversteer or understeer?

    With suspension setup lots of factors are at work and they all need to be in balance, ride height front to rear, springs, shocks, ARBs, tires, tire pressures, weight distribution, lead foot.

    Sounds to me like you need a test day at the track, how about the Shelby event?

    Doug

  10. #10
    Join Date
    Sep 2003
    Location
    Santa Cruz, CA
    Posts
    696

    Default

    Hi John,

    I'm just hoping to get my car back together in time for the tour! :eek: Once I'm back from the tour I'm sure I'll have plenty of commentary about how it handles. I just want to know if I'm going to run off the road backwards with the current setup!

    As you can see by my thread on BC there is considerable difference of opinion on what is the correct setup!

    Rod,

    Thanks, Do you know what front ARB you are running?

    Doug,

    Nope, I've not driven it yet. I hope to get it out this weekend for a shakedown run prior to the NorCal (Sierras to the Sea) tour.
    Tom "ELV15" Jones
    http://PIErats.com

  11. #11
    Join Date
    Sep 2003
    Location
    Seattle-ish, WA
    Posts
    353

    Default

    Quote Originally Posted by Elv15 View Post
    I'm just hoping to get my car back together in time for the tour! :eek:
    Your suspension is an unknown. Gert's engine is barely back together... I knew I should have implemented the No Fettling rule from USA2005 ;)

    I know the Westfield is a different animal, but I was shocked by how sensitive it is to rake. I finally discovered this year that the majority of my handling problems were down to that (insufficient camber front and rear was a close second).

    -John
    Westfield SEiW
    2.0L Duratec
    Throttle Steer

  12. #12
    Join Date
    Sep 2003
    Location
    Santa Cruz, CA
    Posts
    696

    Default

    Don't forget that Stan is in the middle of swapping out his fuel tank! :D
    Tom "ELV15" Jones
    http://PIErats.com

  13. #13
    Join Date
    Sep 2003
    Location
    Seattle-ish, WA
    Posts
    353

    Default

    Certainly picked a good tour to do without a support truck. Where is the bangshead emoticon when you need it? :D

    -John
    Westfield SEiW
    2.0L Duratec
    Throttle Steer

  14. #14
    Join Date
    Sep 2003
    Location
    Pasadena, CA
    Posts
    2,130

    Default

    No problem....we can do a rope team like the mountain climbers. If one car croaks the other ones will just haul it along.

  15. #15
    Join Date
    Sep 2003
    Location
    Seattle-ish, WA
    Posts
    353

    Default

    In that case, I guess it is a good thing we have a Stalker with a torque monster V6 under the bonnet ;) Okay, now back to our regularly scheduled program so Tom can get his car ready!

    -John
    Westfield SEiW
    2.0L Duratec
    Throttle Steer

  16. #16
    Join Date
    Aug 2008
    Location
    San Diego
    Posts
    36

    Default

    I wish the "Torque Monster" could tour with you guys.......but the 12 hour drive to get there.....Ouch. By the way, I am VERY familiar with the Weaverville/Trinity Center area, I love it up there. That is the tour your talking about right, Nor Cal?

    Anyone in San Diego up for a trip on some way twisty roads on this long weekend? I have a great route planned out!

    Another great road to check out, Hwy 198 Generals Highway to the 254 I beleive and make sure to zoom in to see all the corners. Its also at 15 degrees at the steepest point!
    Scott
    Stalker Chassis #80 W/LS3
    San Diego

  17. #17
    Join Date
    Sep 2003
    Location
    Seattle-ish, WA
    Posts
    353

    Default

    That's the tour we are talking about, but I wasn't referring to you ;) One of the participants has a Stalker.

    Tom, I noticed on BC you said you are only running 55mm of ground clearance. Were you running that low before?

    -John
    Westfield SEiW
    2.0L Duratec
    Throttle Steer

  18. #18
    Join Date
    May 2004
    Location
    Victorville, CA
    Posts
    611

    Default

    Quote Originally Posted by Elv15 View Post
    Don't forget that Stan is in the middle of swapping out his fuel tank! :D
    As of Monday, the tank is back in! I'll do a test drive this weekend.
    However, the windscreen is off as I'm replacing the glass. I've had the glass for months but its more fun waiting till the last minute.

    Stan

  19. #19
    Join Date
    Sep 2003
    Location
    Santa Cruz, CA
    Posts
    696

    Default

    John,

    I did not make any measurements before I started upgrading. In hindsight, this was a mistake. I should have measured everything and then set it back the same way - just with the wider wishbones. Now I will have a hard time figuring out which changes made a difference!

    I did a quick search on BC and it seems I did have quite a bit more clearance before:
    I've added a raceline wetsump which makes the sump even with the bellhousing. I've got 83mm of clearance _without_ me or a passenger in the car (13' w/A032R tires).
    I'm going to wind up the platforms a bit more and see how much I can raise it.
    Tom "ELV15" Jones
    http://PIErats.com

  20. #20
    Join Date
    Sep 2003
    Location
    Seattle-ish, WA
    Posts
    353

    Default

    I measured my sump clearance last night before asking my earlier question about your ride height. Interestingly, my clearance is also 83mm without anyone in the car. Can't imagine any lower than that around here.

    -John
    Westfield SEiW
    2.0L Duratec
    Throttle Steer

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Taller roll bar wanted
    By scottspiess in forum For Sale/Wanted
    Replies: 1
    Last Post: October 29th, 2006, 06:07 PM
  2. WTB: Looking for a rear exhaust, CSR/SV??
    By Steve-B in forum For Sale/Wanted
    Replies: 1
    Last Post: February 27th, 2006, 05:50 PM
  3. Roll Bar Fabricator?
    By soareyes in forum Questions and Answers
    Replies: 3
    Last Post: January 6th, 2006, 07:19 PM
  4. Rear sway bar
    By New2 7's in forum Questions and Answers
    Replies: 0
    Last Post: October 1st, 2005, 05:35 PM
  5. 3.62 or 3.92 rear end with 5 speed?
    By Steve Stephens in forum Questions and Answers
    Replies: 9
    Last Post: August 14th, 2004, 10:01 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •