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Location:
Brisbane
Registered:
October 2002
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will a rear sway bar help axle tramp
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Mon, 26 April 2004 10:42
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i have the opportunity ATM to buy a rear sway bar for my car, would that help settle the car down, i have leafs in the rear
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Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
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Re: will a rear sway bar help axle tramp
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Mon, 26 April 2004 10:47
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how long is a piece of string?
axle tramp is caused by a few different things,
Worn bushes
Worn Rear shocks
Un even lengths of trailing arms
etc, But the rear anti roll bar will stiff it up, however it may even make the tramp WORST. I'd get it,install it and look at the other problem areas if it is still bad.
PS: Leaves always tend to tramp more then spring rear ends due to their design
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Location:
Brisbane
Registered:
October 2002
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Re: will a rear sway bar help axle tramp
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Mon, 26 April 2004 11:03
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i'm just sick of not being able to launch it properly, i'm about to get my head done so i'll actually have power and i will still have to baby it off the line, would it be a wasted investment
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Location:
South Australia
Registered:
July 2002
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Re: will a rear sway bar help axle tramp
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Mon, 26 April 2004 23:16
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A rear sway bar is always handy to have if you don't already have one!
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Location:
Madrid - Spain
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 00:14
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No it won't help tramp
There are a few ways of preventing axle tramp on leaf sprung cars but the first step is always making sure your existing components are all good as per simons post.
The sway bar might make a good addition to you handling. I would consider looking at a pan-hard rod or watts link as well to remove the boat type feel that leaf sprung rear ends have.
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 00:22
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try fitting some control links to stop the twisting of the banjo, this is the problem with leaf springs, they only react to wheel torque (if you want to call it that) by twisting and binding up, unlike a sprinter for example, which have solid links to stop this twist, and coil springs to do the springing. look up some oldschool drag racing stuff for ideas.
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Location:
Tasmania
Registered:
April 2003
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 01:35
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Hi,
Go some slapper bars. They will fix most of your problem. You might also want to check the diff pinion angle. If this is out, then the car will tramp more.
The only BIG problem with slapper bars is the decrease in ground clearance.
Cheers,
Justin
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Location:
Brisbane
Registered:
May 2002
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 02:06
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AND they completely root your handling AND they're illegal on the street. Fine for dedicated drag cars but that's about it...
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Location:
Madrid - Spain
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 03:05
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Yep look at your existing suspension components first before doing something silly like tramp bars. I guess by the 18rg, it's not a dedicated drag car, so tramp bars are definitly something you don't want.
Look at your suspension bushes and shocks first.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 04:32
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IMHO a sawybar will not help tramp.. if only one side is tramping, it will upset the other side.
tramp occurs either becuase the shocks and springs are not controlling the wheel movement, or because the spring is winding up and suddenly releasing (which is a vicious circle)
if they are stock leaves, consider putting an extra leaf in, or possible a leaf just for the front half... stiffer springs and shocks in mine have removed tramp, and just havign a stiff front half will decrease wind up without the hassle of slapper bars (which are an archaic device).
rear sway bar will make the rear stay flatter as it transfers wheel movement from one side to the other.. but if the body is rolling, this may cause inside wheel to lift more and give more oversteer, and less traction with open diff?
or is it the other way around  
Cya, Stewart
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Location:
Brisbane
Registered:
October 2002
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 08:32
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| gold28 wrote on Tue, 27 April 2004 13:05 |
I guess by the 18rg, it's not a dedicated drag car,
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whats that supposed to mean
i can get some konis for like $220 a pair {vk's are a direct bolt in}, should i go for that,
how much would a watts/panhard rod setup be to install
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Location:
brisbane
Registered:
March 2003
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 10:12
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if ya axle is tramping it will most likely be your shackle bushes flogged out and or rear leafs are all over the place
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Location:
Madrid - Spain
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Tue, 27 April 2004 21:32
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Give your car the bounce test before racing out and buying more shocks. If they aren't too bad, I would have a close look at your bushes.
If your handy with a welder, or know someone that is, get a pan-hard rod or wats link from the wreckers and make up the mounts for them. You should get away with it for under $100.
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Location:
Canberra
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 05:33
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no expert on leaf springs but when my mate threw a rear swaybar in his 18rg powered RA23, it was unsafe to drive in the wet, due to the car constantly spinning 180 degrees around corners.
and that was just normal everyday driving.. not ITS RAINING LETS GO DRIFTO!
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Location:
Brisbane
Registered:
May 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 05:48
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This is what happens when your rear suspension is way too stiff. You can't just throw any old swaybar on and expect the handling to be better!
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Location:
Madrid - Spain
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 06:13
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Ohhh now come on Norbie, it may have just been a case of the engine being too powerful for the car. Fully.
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Location:
Canberra
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 06:21
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you try to help someone out with telling them about a past experience and you get shot to shit,
T O Y M O D S !
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Location:
Madrid - Spain
Registered:
August 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 07:06
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Sorry, no offence intended there. It's more me having a go at the "drifters" that brag about their power and their full sik handling.
If the rear anti-roll bar is too big, you will get too much weight transfer on the back wheels and thus oversteer. Simple as that. Thats why you don't just buy a big rear bar and whack it on a standard car. Unless you want a car with ridiculous handling traits.
The anti-roll bar does not provide any rotational restraint about the axle line, nor does it provide any vertical restraint. Therefore it will have no effect on tramp. A bigger anti-roll bar will however increase power on oversteer which may manifest itself as tramp but that is secondary.
So to answer your original question
No
And it may actually make things worse.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 07:24
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my rear leaves ARE too stiff, and i DO get too much weight transfer.. sucks with open diff, and is horrible in the wet..
i have a 22mm front bar but transverse leaf  ewwwww
stiff rear, front biased weight, and 700kg car weight = slippery.
car is not too overpowered (105Nm) i think.... just shit suspension
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Location:
South Australia
Registered:
July 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 07:31
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q Mr DOHC: Is your car lowered with softish springs? That may contribute to axle tramp. Hitting bump rubbers not good and also can cause your handling to suxor.
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Location:
Brisbane
Registered:
October 2002
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Re: will a rear sway bar help axle tramp
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Wed, 28 April 2004 07:57
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my suspension is STOCK, cept for konis in the front
the swaybar is the correct one that XXXXXXX suspension company brought out 25 years ago for my car, maybe i'll get some new rubbers,
if i do that and then get my springs reset at a later date, will they have to destroy the rubbers and get new ones
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