Thread: 41 Willys Gasser project

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I can almost hear it running

Nice work as always, Steve!!! When are your heads going to get back to you?

Originally Posted by Dave Severson

Nice work as always, Steve!!! When are your heads going to get back to you?

Hmmm i'm really not sure Dave, MTS have told me they are being worked on as we speak and they could be done in a couple of weeks, then I have to ship them by boat as they are too heavy to go by air freight, it would cost a small fortune by air freight

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Yeah, you're really operating at a severe disadvantage with all the outrageous freight charges these days! Makes me (again) realize how easy we have it over here with everything so readily accessible....

Well whilst waiting for my heads to arrive I decided to make front & rear anti roll bars for the car, they are made from Chromemoly tube, 1" at the front & 3/4" at the rear, I'm using some Energy Suspension chassis mounts and an adjustable link each end comprising of 3/8" rose joints and some turned down stainless hexagon bar.

The dual blades each end get boxed off to stop any twisting.













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You do outstanding word , very detailed--------however----------you don't want to make an anti roll bar out of a piece of tubing---------you might want do a little research into the twist properties of the material------

Originally Posted by jerry clayton

You do outstanding word , very detailed--------however----------you don't want to make an anti roll bar out of a piece of tubing---------you might want do a little research into the twist properties of the material------

Steve,
I agree with Jerry, anti-sway/roll bars are solid stock with material qualities ranging to the high tensile area. That tubing has very little resistance to twisting force, IMO. Looks good, but I don't think it will function as you want.

Not intending to start an argument, but I know that Competition Engineering commonly makes anti-roll bars from 4130 moly tubing, and Hotchkiss has some good design recommendations. Tubular sway bars are common on many factory cars on the road today. Heavy wall 4130 has pretty hairy torsional strength. I agree that tubular is a no-no if there is any bending. However, a properly sized tubular roll bar with the type of links that Steve has shown is definitely usable. Check the following link:
http://www.hotchkis.net/_uploaded_fi...ons162file.pdf

Originally Posted by Henry Rifle

Not intending to start an argument, but I know that Competition Engineering commonly makes anti-roll bars from 4130 moly tubing, and Hotchkiss has some good design recommendations. Tubular sway bars are common on many factory cars on the road today. Heavy wall 4130 has pretty hairy torsional strength. I agree that tubular is a no-no if there is any bending. However, a properly sized tubular roll bar with the type of links that Steve has shown is definitely usable. Check the following link:
http://www.hotchkis.net/_uploaded_fi...ons162file.pdf

Wow!! I stand corrected!! Thanks for posting, Jack. It's always good to learn something!

Roger, after 6 years of engineering school, I may be too old to "engineer," but I know where to look. However, I don't know the wall thickness on Steve's bar, so I can't make a judgment on it's effectiveness.

Originally Posted by Henry Rifle

Roger, after 6 years of engineering school, I may be too old to "engineer," but I know where to look. However, I don't know the wall thickness on Steve's bar, so I can't make a judgment on it's effectiveness.

Yep, I didn't do six years, but I quickly realized that the years at school taught us how to analyze, and where to look for answers along the way. I relied too much on the old approach and did not bother to look for new alternatives. I bet Steve has already looked at his tubing characteristics.

Steve's tubular anti roll bar will work fine as an anti roll device for acceleration in a straight line---to off set torque roll like on a drag strip --straightline acceleration---

It is not the ideal answer to any chassis roll from a cornering application---If it doesn't break the tube or links , it will tear the mounts loose from the frame member------

Most arb on modern vehicles resist roll by the bending of the bar itself--------

It looks kind of light, It's going to be awesome to see it in application!

Worst case, it breaks, and gets rebuilt or replaced.

Without innovation, you have stagnation.

Originally Posted by jerry clayton

You do outstanding word , very detailed--------however----------you don't want to make an anti roll bar out of a piece of tubing---------you might want do a little research into the twist properties of the material------

Why not Jerry, its chrome moly tube

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Originally Posted by rspears

Steve,
I agree with Jerry, anti-sway/roll bars are solid stock with material qualities ranging to the high tensile area. That tubing has very little resistance to twisting force, IMO. Looks good, but I don't think it will function as you want.

Roger its quite common place to make anti roll bars in chrome moly tube, I've made them in it for years, it works very well.

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