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Author Topic:   Front Bumper
chevelle
Dirt Full Roller

Total posts: 71
posted April 23, 2003 05:10 PM  
What do you do with the energy absorbing mount of the front bumper? It seems like when two cars get together it rips one side loose and they spend quite a while getting the other side ripped loose, and end up laps behind. I was thinking of welding angle between the plates on the frame and the bumper or cutting a peice of pipe in half and welding it between the plates.
Thanks

gould
Dirt Forum Champ
Total posts: 730
posted April 23, 2003 06:52 PM  
i took mine clear out. front end weight. took 2 plates of 1/4" steel and welded a pipe in between them. welded one to the frame and bolted the other one up to the bumper. find a aluminum bumper if you can.

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You know when you have had a good night dirt racing when you jump in the shower and the tub is muddy brown for the first 10 minutes.

racer17j
Dirt Forum Champ
Total posts: 5390
posted April 23, 2003 07:02 PM  
Racer 17 J is right. The bumpers should absorb impact even to the point of being sacrificed. There are several ways to accomplish this, using the stock shock type or by designing bumpers to crush easier than the chassis. A crushable bumper means a straight chassis. SLEEPY

gould
Dirt Forum Champ
Total posts: 730
posted April 25, 2003 05:22 PM  
CRAP!!! lol

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You know when you have had a good night dirt racing when you jump in the shower and the tub is muddy brown for the first 10 minutes.

stormy
Dirt Full Roller

Total posts: 49
posted April 25, 2003 06:52 PM  
yeah me too gould!!!! lol

gould
Dirt Forum Champ
Total posts: 730
posted April 25, 2003 09:36 PM  
it'll just make me more cautious, lol.

racinrich1
Dirt Full Roller

Total posts: 46
posted April 25, 2003 10:53 PM  
I have run the energy absorbing type on my 76 Monte for many races and saved the frame many times...I weld in short lenghts of chain as a stop to keep them from pulling apart...
Rich

racer17j
Dirt Forum Champ
Total posts: 5390
posted April 26, 2003 12:49 AM  
Just a warning.. Id be carefull welding onto the asorbers some of them are gas charged like shocks and can explode. A colapsable bumper is the way to go but we always removed the stock type asorbers and built ours with a piece of 2 in sqaure tubing welded to the out side of the horn with a piece of 1 3/4 slid inside it that mounted to the bumper.We used one 3/8 grade 5 bolt through the 2 and 1 3/4 tubing as a shear pin and also gave the bars an up angle to the bumper to help absorb an impact

racer2
Dirt Freak

Total posts: 352
posted April 26, 2003 08:36 AM  
I do mine the same way as juggalo,but I use
1 1/4 and 1 1/2 square tubing with 3/4 up bars to the hoop

racer9
Dirt Full Roller

Total posts: 33
posted May 24, 2003 09:59 PM  
What i did was used the bumper because i was low on weight and just welded some 1 1/4" tubing 2 anchor it down.

racer17j
Dirt Forum Champ
Total posts: 5390
posted May 25, 2003 12:16 AM  
another thing you might want to look into is a type of tether. they are makeing up do that now this year take some steel braded cable and hook the bumper to the front and rear bars

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