 front end is done!, semi tube frame |
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| Jeroen |
 Jan 21 2006, 07:08 PM
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#1
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914 Guru  Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe  |
Finished the semi tube frame front today and I'm pretty happy with how it turned out
First, I fabbed a crossbrace up front over the front a-arm mounting points (IMG:http://www.914world.com/bbs2/uploads/blog-1134350910.jpg) detail shot of the x-brace (IMG:http://www.914world.com/bbs2/uploads/blog-1134350964.jpg) welded in (IMG:http://www.914world.com/bbs2/uploads/blog-1134350990.jpg) next, I welded scab plates to the firewall and fabbed the upright braces (these were a PITA to make) (IMG:http://www.914world.com/bbs2/uploads/blog-1137380718.jpg) for the bolt in diagonal, I welded little tubes into the upright braces to fit an M10 bolt (IMG:http://www.914world.com/bbs2/uploads/blog-1137380772.jpg) bracket of the diagonal brace (IMG:http://www.914world.com/bbs2/uploads/blog-1137869451.jpg) again, and the second bracket still in pieces (3mm plate, M10 nut and piece of square tubing ) (IMG:http://www.914world.com/bbs2/uploads/blog-1137869473.jpg) testfitting it to the upright brace... (IMG:http://www.914world.com/bbs2/uploads/blog-1137869486.jpg) feet welded to the diagonal and trimmed (IMG:http://www.914world.com/bbs2/uploads/blog-1137869496.jpg) finished... upright braces welded in and the diagonal bolted in between (IMG:http://www.914world.com/bbs2/uploads/blog-1137869510.jpg) close up... (IMG:http://www.914world.com/bbs2/uploads/blog-1137869519.jpg) nother (IMG:http://www.914world.com/bbs2/uploads/blog-1137869529.jpg) the result... I can jack up the left front and the right will follow along nicely there's about half an inch deflection, but this is still without a cage (IMG:http://www.914world.com/bbs2/uploads/blog-1137869539.jpg) more detailed pics in my blog (click the blog-button at the bottom of this post) |
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| VegasRacer |
Jan 22 2006, 03:29 AM
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#2
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ELVIRA Group: Benefactors Posts: 8,503 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None 
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Sehr Nett. (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif)
(I liked the old ;clap; smilie better. This one looks like it is doing jumping-jacks.) |
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| jimkelly |
Jan 22 2006, 09:31 AM
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#3
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
Looks damn good!
More importantly though is how much of an improvement is it? Next question is are you gonna sell replications to club members? Jim |
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| Jeroen |
Jan 22 2006, 11:22 AM
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#4
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
not sure how much of an improvement it is I don't have any "hard data" without the reinforcements
it's available in a hardware store near you... (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) |
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| seanery |
Jan 22 2006, 12:48 PM
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#5
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,852 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
looks good (IMG:http://www.914world.com/bbs2/html/emoticons/clap56.gif)
Did you use square tubing because it's easier to work with or for another reason? |
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| Bleyseng |
Jan 22 2006, 12:58 PM
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#6
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
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| Brett W |
Jan 22 2006, 01:14 PM
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#7
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None 
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Nice fab work. BUt what was the point? There is very little load coming through those points.
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| Jeroen |
Jan 22 2006, 07:16 PM
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#8
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
now ya tell me... but seriously, I've seen similar set ups on most race cars (I know, that's not allways a garantee for a good design), but it just made sence to tie in the front mounting points of the a-arms
I can do the square tubing with simple hand tools and an angle grinder I'm sure with a good tubing notcher, round tube would be easier to fab, but I don't have one (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) on a lot of locations it's also easier to work with the square tubing because the mating surfaces are flat |
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| SirAndy |
Jan 22 2006, 11:17 PM
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#9
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Resident German Group: Admin Posts: 41,624 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
very nice! (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) do you, by any chance, have the exact measurements of that first cross-brace ??? (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) Andy |
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| rick 918-S |
Jan 22 2006, 11:33 PM
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#10
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Hey nice rack! -Celette Group: Members Posts: 20,443 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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| Brett W |
Jan 22 2006, 11:43 PM
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#11
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Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None
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For your application the square tubing will work better than the round. For the load paths your tubing is set up to brace for, the square tubing is stronger.
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| McMark |
Jan 23 2006, 12:31 AM
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#12
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The bolt tube through the square stock is a really nice detail. (IMG:http://www.914world.com/bbs2/html/emoticons/clap56.gif)
Why is the cross brace removable? Nice work. Cut out the trunk floor and replace it with aluminum. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) |
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| Jeroen |
Jan 23 2006, 03:56 PM
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#13
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
I *think* it's 86 or 89cm, but I'll measure it for ya
needed to do that, or the brace would crush when you torque it down
I wanted to keep the area easily accessible/workable (there will be a front mounted oil tank, inline oilfilter, oilcooler, thermostat and batery in there)
That was the initial plan... one piece flat alu floor for the front trunk and the passenger compartment, but I recently discovered that, in order to keep it street legal, the floors have to be welded to the chassis (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) |
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