Barracuda tubing die radius

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Barracuda tubing die radius

Postby tt5.3z » Tue Sep 20, 2016 8:36 am

Hi everyone, I'm excited to build a barracuda buggy. I've been doing a lot of reading about them and I can't seem to find a clear answer on what the best size and bend radius die to use. I will be using imperial tubing. The die choices that I have are 1 3/8" 4.5" radius or 1 3/8" 5.5" radius or 1 3/8" 6.5" radius. Also I have the choice of 1 1/2" 4.5" radius or 1 1/2" 5.5" radius or 1 1/2" 6.5" radius. Which will be the best die to build the barracuda? How close will it be to the plans? Thanks!!!
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Re: Barracuda tubing die radius

Postby tt5.3z » Wed Sep 21, 2016 2:43 pm

Anybody?
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Re: Barracuda tubing die radius

Postby Tony » Wed Sep 21, 2016 5:09 pm

The Barracuda has a 90mm bend radius for it's chassis tubes.
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Re: Barracuda tubing die radius

Postby tt5.3z » Thu Sep 22, 2016 6:18 am

The smallest option that I have is a 4.5" (114.3mm). How would it work out? Or should I look into getting a custom die made?
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Re: Barracuda tubing die radius

Postby tt5.3z » Thu Sep 22, 2016 6:31 am

I've also seen some people using 1 1/4" tubing, 1 3/8" tubing and 1 1/2" tubing. I'm wondering what size will be the best to use? 1 3/8" is closest to the metric size used in the plans. Thanks
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Re: Barracuda tubing die radius

Postby Tony » Wed Sep 28, 2016 7:26 pm

If you can obtain 1 3/8" then I would suggest that is the best way to go as the difference in size between metric & inch will only then be a tiny amount.
A 4.5" bend radius will work OK, but you need to deduct the difference between bend radius on the bar work, so the rollbar as an example remains the same centre line dimensions, (ecept were the radius is).
It's also important to not make the nose wider, (hip rail) as if it is wider then the top arm will foul it's underside on full bump.
"There can't be a practical reason for believing in what isn't true" – Sir Bertrand Russell.
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