when the weight's on the tires,it's actually behind the diff.
Rear Anti Roll Bar for Drag Strip Traction
- Thread starter Michael Bennett
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The (3) holes on each side allow adjustability and of course the threaded vertical rods on each side can be adjusted. I have the big IROC bar on the front of my car with this Helwig in the rear. They compliment each other well and there is very little body roll.
I'm going to dig up this older thread instead of starting a new one.
I am looking to increase drag strip traction but I don't want the 'pipe' style, I want the 'sway bar' style.
It looks like they run the gamut on size and price.
The Spohn and BMR look about the same, HEAVY, heavy duty, and the most expensive at $400+. Looks like they would be as stiff as the 'pipe' style.
The Detroit Speed and Hellwig are much alike, smaller diameter and hollow chromoly, with the Hellwig being about $100 less in price.
Price is not the deciding factor here. There is no free lunch, so I'll trade some traction at the strip for some streetability. The Hellwig stock style bar that I have isn't doing much for the strip and is pretty much a cluster with my SSM lift bars. I'll also keep the right rear airbag in for the strip for fine tuning if it seems to help.
Who is using the Detroit Speed or Hellwig with good street AND strip results?
I am looking to increase drag strip traction but I don't want the 'pipe' style, I want the 'sway bar' style.
It looks like they run the gamut on size and price.
The Spohn and BMR look about the same, HEAVY, heavy duty, and the most expensive at $400+. Looks like they would be as stiff as the 'pipe' style.
The Detroit Speed and Hellwig are much alike, smaller diameter and hollow chromoly, with the Hellwig being about $100 less in price.
Price is not the deciding factor here. There is no free lunch, so I'll trade some traction at the strip for some streetability. The Hellwig stock style bar that I have isn't doing much for the strip and is pretty much a cluster with my SSM lift bars. I'll also keep the right rear airbag in for the strip for fine tuning if it seems to help.
Who is using the Detroit Speed or Hellwig with good street AND strip results?
My opinion, its shocks you need more than an anti roll bar. The SSM bars hit the tire very hard and quick, but the tire rebounds back and unloads. You need a shock that can slow extension and be stiff to hold the rear tire down.
I'm using a rear bar from a 98-05 blazer. There is a whole thread on here talking about it. I have maybe $100 total in mine and it really helped reducing body roll.
For drag racing the Blazer bar is still too thin. Check out HR Parts n stuff if you are looking for a light weight bolt on bar. Theirs is hollow. http://hrpartsandstuff.com
My before picture would look like the car sitting in a parking lot with smoke coming off of the tires. Zero weight transfer.
A HR bar is 1.25 od 0.75" ID. Area moment of inertia is 0.2 in^4
Stock bar is 0.75" or 0.875", I can't remember, inertia is 0.03 or 0.05 in^4
Blazer bar is 1", inertia is 0.1 in^4
So assuming the materials are basically the same on all, the blazer bar is either 2 or 3 times as stiff as stock and the HR bar is 2 times as stiff (marterials wise) as the blazer bar.
Food for thought.
Stock bar is 0.75" or 0.875", I can't remember, inertia is 0.03 or 0.05 in^4
Blazer bar is 1", inertia is 0.1 in^4
So assuming the materials are basically the same on all, the blazer bar is either 2 or 3 times as stiff as stock and the HR bar is 2 times as stiff (marterials wise) as the blazer bar.
Food for thought.
True, but you can't compare a chassis mounted bar to a stock location mounted bar using bar cross sectional area.
On a Chassis mounted bar, the arm length can matter more than the bar cross sectional area.
A 1" Chassis Mounted bar with long arms, won't be as stiff as a 1" Chassis mounted bar with short arms, but both will likely be stiffer than a 1" stock location bar.
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