View Full Version : Rear Sway Bar
PITCHER28 Jan 17th, 07, 05:40 PM I HAVE A 68 CAMARO WITH A 509 MERLIN MOTOR AND TREMEC 5 SPEED.
I HAVE BEEFED UP MY FRONT SUSPENSION, INCLUDING THE SWAY BAR.
THE REAR HAS TRACTION BARS, SUB-FRAME CONNECTORS AND AIR SHOCKS.
I NEED INPUT ON A REAR SWAY BAR?
WHAT AM I GAINING?
:confused:
pdq67 Jan 17th, 07, 06:14 PM My 406 engined car had a rear sway-bar and yes, it did cause my car to push some, but I just throttled it when needed.
And fwiw, my car was so hard that it would almost skip sideways at speed turning a 90!!
Slappers and ADDCO 1" front and 3/4" rear s/b's along w/ coil-overs to raise her so I could fit my great big L-60's under her that measure a modern 298-53/14!!
Now I have a 496 and about 500 to 525 pound cut MOOG #5536 coils and about 175 pound or so leaf's and still the same s/b's and slappers, but this time 225 and 255/45-17's on her!!
My car has NEVER been this low in front............................................. ........... But I still have good ground clearance, it's just no longer old-school anymore!!
pdq67
davidpozzi Jan 17th, 07, 06:58 PM It depends on the style of traction bar. If the front of the bar is clamped to the leaf, it will turn your rear axle into a huge anti-roll bar! You will have oversteer if your traction bar is firmly attached on the forward ends.
A heavier engine requires an increase in spring and anti-roll bar on that end (front). A rear anti-roll bar will shift some of the cornering load from front to rear. I'm finding that most Camaros with larger than stock front bars need a rear bar too, but the small block rear bar is not very large or stiff, and going without it doesn't lose much cornering power. If the rear tires are wider than the front tires, there is additional rear cornering power that can be put to work by a rear anti-roll bar.
I would asume a big block would need a rear bar even more than a small block. Addco makes a pretty good rear bar these days.
David
nick V Jan 17th, 07, 09:07 PM I agree with David, but I have one question: Do you need the air shocks to maintaine ride height? If not, I would suggest suggest switching to an ajustable rear shock like a QA1, Carrera, etc . I've got the Addco bars front and rear and like how the rear bar attaches to the rear frame rails and rear. I also have the CE J-bolt tractions bars and everything fits. A must with a BBC and a manual.....just my .02
PITCHER28 Jan 23rd, 07, 07:37 PM Thanks For Your Reply.
I Guess I Will Add A Sway Bar
PITCHER28 Jan 23rd, 07, 07:39 PM Nick,
Thanks For You Input.
Yes My Air Shocks Are For Ride Height.
I Will Be Adding A Rear Sway Bar Now
davidpozzi Jan 24th, 07, 10:32 PM An easy test is to take the car into a constant-radius turn like a freeway entrance ramp. Go through it at a confortable speed, then try it again but fairly fast and pay attention to the steering wheel position at both speeds. As your speed increases and you get near the cornering limit, do you have to add more and more turn of the wheel to keep the car on line? If you need to add a quarter turn to keep the car on the correct path, that's understeer and you need to try a rear bar.
Traction bars and air shocks stiffen the rear in roll which has a rear anti-roll bar effect but it's difficult to gage how much it adds.
Fred Ficarra Jan 24th, 07, 11:50 PM Love my Addco bars! Both old and new. The first pic is circa 1971 or so. The second was last month. It's not tested yet.:D
http://epitomesrebuild.com/images/141.JPG
http://epitomesrebuild.com/images/145.JPG
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