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Old 01-17-2011, 07:41 AM   #1
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My roof extension

Prototype materials:

Scrap coroplast, gorilla tape and 1/2 emt conduit.

Final version materials:
Lexan, 1/2 emt conduit, 48x2x.125 aluminum and sheet metal screws.












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Old 01-17-2011, 07:49 AM   #2
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Re: My roof extension

Nice work!!!

Have you got any before and after results?
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Old 01-17-2011, 11:27 AM   #3
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Re: My roof extension

Does that affect your vision out the back? (Not trying to be a naysayer, just curious!)

-Bob C.
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Old 01-17-2011, 12:02 PM   #4
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Re: My roof extension

Looking great! Great lexan work! I wish I had the skill do do those complex bends like that!
Do you plan to make this a full boat tail eventually or just a camback?
B
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Old 01-17-2011, 03:24 PM   #5
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Re: My roof extension

pgfpro - No aba testing, when I started ecomodding this past summer I didn't expect to become so immersed. I do know before the prototype roof ext/kamm in 40 degree temps I would see about 40mpg with the other mods(air dam being most significant). In single digit temps I haven't dropped below 38mpg with no warm up time with this set up, best one tank was 42.93mpg

bobc455 - The prototype did, really sucked because I deleted my pass side mirror. This one is more than sufficient, so long as I keep it clean(salt free). I am thinking of sealing it up so I don't have to clean it so frequently.

benfrogg - It's very easy to do if the curves are gradual enough, and if you use thin enough polycarbonate. I went with .093 thickness, and I didn't use a heat gun, just held it in place while I put sheet metal screws in. It wasn't easy doing it by myself, and all I had to use was a dremel, in person it's far from perfect, but so it the car. Thanks for the comments guys.
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