ebailey95
Proven Member
- 130
- 4
- Oct 17, 2012
-
Portland,
Oregon
Howdy all. Just wanted to share a custom rear diffuser rvaughn and I came up with. We've been itching to execute this project for a few months now and I recently got the welder needed to do the work so I fabbed a few up as soon as I could and I couldn't be happier with how it turned out.
Some info:
The entire piece is made from 10 gauge aluminum sheet metal which equates to 1/8in. The diffuser covers the entire bottom of the rear bumper all the way back to the forward side of the spare tire tub. There are 12 mounting points using 3/8 by 1in bolts along the bumper outline using factory hole locations as well as 3 mounting points in the spare tire well making the piece very rigid and solid to the car. The entire idea behind the project was to create a part that would be cosmetically apesling while stiffening up the rear bumper from flapping around at higher speeds, which mine did terribly. The end result accomplished both.
Fabrication wise, I made the diffuser with only three tools: a jig saw, and angle grinder with flap wheel, and my new welder. I'm a simple man
There are 11 individual pieces the make up the part and each are welded using 4043 filler rod, 100% Ar pulsed at about 125 amps. I'm using a Miller Syncrowave 210 on 110v (amazing machine). There are 6 vertical strakes spaced through out.
I'm happy with the end product. It solidified the rear bumper eliminating the parachute effect it had while at higher speeds and it looks good doing it I've tested it at 120+ mph and haven't taken it easy driving around. Zero clearance issues and no complaints so far beside the fact that it has a gnarly bite if your ankles get too close to the pointed strakes .
Always welcome to constructive criticism and some honest opinions and/or recommendations.
Some info:
The entire piece is made from 10 gauge aluminum sheet metal which equates to 1/8in. The diffuser covers the entire bottom of the rear bumper all the way back to the forward side of the spare tire tub. There are 12 mounting points using 3/8 by 1in bolts along the bumper outline using factory hole locations as well as 3 mounting points in the spare tire well making the piece very rigid and solid to the car. The entire idea behind the project was to create a part that would be cosmetically apesling while stiffening up the rear bumper from flapping around at higher speeds, which mine did terribly. The end result accomplished both.
Fabrication wise, I made the diffuser with only three tools: a jig saw, and angle grinder with flap wheel, and my new welder. I'm a simple man
There are 11 individual pieces the make up the part and each are welded using 4043 filler rod, 100% Ar pulsed at about 125 amps. I'm using a Miller Syncrowave 210 on 110v (amazing machine). There are 6 vertical strakes spaced through out.
I'm happy with the end product. It solidified the rear bumper eliminating the parachute effect it had while at higher speeds and it looks good doing it I've tested it at 120+ mph and haven't taken it easy driving around. Zero clearance issues and no complaints so far beside the fact that it has a gnarly bite if your ankles get too close to the pointed strakes .
Always welcome to constructive criticism and some honest opinions and/or recommendations.
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