Ironworks New Project - Unibody Ranch Truck

[ironworks]

Originally Posted by deuce_454

WHAAAT??

I just saw this post and had to object... a 5x2 .125 wall box profile is anything but weak torsionally...

and since they are connected in both ends (in the front by the front crossmember) applying a torsional load on the car will be absorbed by both the rails ... as they will have to flex allong their longitudinal axis, doing that to a pair fo 5x2 box profiles is no small task.. its much

and on another note... it is a tube frame :-) its just square tubing

I guess he missed the fact it is just tacked together or that it has no frame crossmembers yet.

You have to love the internet.....

[deuce_454]

Originally Posted by deuce_454

some quick numbers for the doubters out there:
5x2-1/2x1/8 square has a torsional stifness constant of 4,40 in4 and
1,9x0.145 round has a torsional stifness constant of 0.586 in4..
so you would need more than seven parallel round tubes on each side arranged like the ironworks truck with the tube chassis to be as stiff torsionally as the one box..

source: http://www.steeltubeinstitute.org/pd...n_brochure.pdf

i just added a few numbers for the non believers (ofcourse they will only be valid once its fully welded though ...

its a great project by the way.. i would propably move the fenderlips up alittle to show alittle more wheel (atleast do a rendering to test the look), perhaps just in the front..

[waynieZ]

Its going to be a sweet ride. Very nice.

[Sinco]

Very nice project Rodger. As usual your work is over the top. One of these days I need to get up there and take a tour of your shop.

Doug

[Harper]

any update on this uni truck? I love the render...havent seen anything else on it in quite awhile
hope all is going well...

[ironworks]

Originally Posted by Harper

any update on this uni truck? I love the render...havent seen anything else on it in quite awhile
hope all is going well...

Kody one of my employee's is working on it. It has been getting some forward progress lately. Maybe on the ground soon.

[Harper]

thanks for the update, I am so looking forward to pictures, me and my son are working on 65 ford f100's and purchased a 61 uni and it will be delivered tomorrow, not sure of the condition, so its a possiblity it could be rebuildible...

[legend]

Originally Posted by ironworks

I guess he missed the fact it is just tacked together or that it has no frame crossmembers yet.

You have to love the internet.....

whoa there fellas

Just wondered how it compared to modern unibody stuff, where you have the whole body as a stressed part. VW are quoting 25000n/degree of twist for a golf. 5x2 is a beefy section, but then you guys put 600+ bhp through it all so it needs to be.

[ironworks]

Originally Posted by legend

whoa there fellas

Just wondered how it compared to modern unibody stuff, where you have the whole body as a stressed part. VW are quoting 25000n/degree of twist for a golf. 5x2 is a beefy section, but then you guys put 600+ bhp through it all so it needs to be.

I'm not really following whether you asked a question or not. It kinda sounds like a question. But does not make sense as a question and it does not have question marks. These trucks are just a one piece body like an Elcamino, they are just called unibody trucks but they are not really "Unibodies" in the modern terminology.

I'm actually serious for once, not trying to be a smart ass. Really...

[Steve68]

Cool truck, my dad had a 63 F-100, I used to drive when I was a teenager, good truck,