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5" Al vs. 4" Fe? 5" Al vs. 4" Fe?
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Old 10-22-2012, 02:37 AM   #1 (permalink)
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5" Al vs. 4" Fe?
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Old 10-22-2012, 02:40 AM   #2 (permalink)
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Building your own frame?
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Old 10-22-2012, 03:33 AM   #3 (permalink)
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How thick is the Al? and what's the weight difference?
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Old 10-22-2012, 05:31 AM   #4 (permalink)
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What did Factory Five use for their aluminum frame?
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FFR 4040 MKII, IRS, 5.0 w/Cam, Super S pipes, March pulleys, Levy Super Alloy T5, Aluminum Flywheel, Ram clutch, 3.27 LSD, Cobra front brakes, Cobra R wheels, double hoops, driver FB mod, Kirkey Vintage 41 w/heaters, Tunnel mounted BMW E-brake handle, custom shifter/brake and cubby bezels, Mercedes premium carpet.

If you didn't build it, you can't brag about it. Just sayin'.

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Old 10-22-2012, 01:25 PM   #5 (permalink)
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Aluminum is about half the weight of steel and the more common 6061-t6 is about half the strength. After welding the aluminum frame it would have to be reheat treated. Aluminum also has the bad habit of fatigue cracking after a few years of use. It can be done but has draw backs you should be aware of.

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Old 10-22-2012, 02:27 PM   #6 (permalink)
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He's back!!!

Couldn't help notice the prominent first aid kit to the right in the photo. Given some of Hoofa's past projects, this is probably a good idea!
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Old 10-22-2012, 03:25 PM   #7 (permalink)
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OMG!

Hoofa, has it gotten to the point in your build that you have hacked, and slashed, and sawed, so much, that you now need a new frame?

I'm thinking any dent in a round aluminum tube frame, would really weaken it. Might be better to go with square tube aluminum. Easier to weld too..
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Old 10-22-2012, 03:29 PM   #8 (permalink)
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Like Bill said, fatigue in aluminum is cumulative over time. So the design needs to identify areas of stress and increase strength in those areas. Still, if built right, should last 30+ years. Gonna need a pretty large heat treat oven. 900 degrees for 10 hours and a quench should do it.

As opposed to steel which can be stressed over and over and as long as it is not pushed past its molecular elasticity, will last forever (figuratively).
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FFR 4040 MKII, IRS, 5.0 w/Cam, Super S pipes, March pulleys, Levy Super Alloy T5, Aluminum Flywheel, Ram clutch, 3.27 LSD, Cobra front brakes, Cobra R wheels, double hoops, driver FB mod, Kirkey Vintage 41 w/heaters, Tunnel mounted BMW E-brake handle, custom shifter/brake and cubby bezels, Mercedes premium carpet.

If you didn't build it, you can't brag about it. Just sayin'.

http://www.ffcars.com/forums/17-fact...11-2012-a.html
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Old 10-23-2012, 06:06 PM   #9 (permalink)
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I'm gonna skip the heat treat, it only has to last for two days.
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Old 10-23-2012, 06:17 PM   #10 (permalink)
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Something you know that we don't? Nuclear attack? Alien abduction? Economic melt down?
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FFR 4040 MKII, IRS, 5.0 w/Cam, Super S pipes, March pulleys, Levy Super Alloy T5, Aluminum Flywheel, Ram clutch, 3.27 LSD, Cobra front brakes, Cobra R wheels, double hoops, driver FB mod, Kirkey Vintage 41 w/heaters, Tunnel mounted BMW E-brake handle, custom shifter/brake and cubby bezels, Mercedes premium carpet.

If you didn't build it, you can't brag about it. Just sayin'.

http://www.ffcars.com/forums/17-fact...11-2012-a.html
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Old 10-23-2012, 06:24 PM   #11 (permalink)
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May-pole
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Old 10-23-2012, 10:01 PM   #12 (permalink)
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He's building his own personal HARP system. Gonna mess with the weather and tectonic plates??? lol
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Old 10-24-2012, 03:01 AM   #13 (permalink)
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Quote:
Originally Posted by h82crash View Post
Something you know that we don't? Nuclear attack? Alien abduction? Economic melt down?
Festivus Pole
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Old 10-24-2012, 03:42 PM   #14 (permalink)
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Custom "Green" cloths dryer?

Heck, a guy has to wash his underwear at least once a year.
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