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Author Topic:   Sheet Metal
Tau44
Dirt Newbie

Total posts: 2
posted February 17, 2005 08:40 AM  
What gauge sheetmetal should I use on a modified or late model car for the body and inside?

Thanks,
Tau

zeroracing
Dirt Forum Champ
Total posts: 1875
posted February 17, 2005 09:24 AM  
I use .040 aluminum sheets on the body, you can get them in almost any basic color but i use nonpainted, then paint whatever color i want.
this year i am going to go with .080 aluminum on the tub(foot and shifter area) to keep it from twisting when you get on the pedals or shift, and wont tear as easy.
also ifyou build a aluminum roof i recomend using like .060 because the .040 can tear easy on the corners.

Tau44
Dirt Newbie

Total posts: 2
posted February 17, 2005 09:30 AM  
How does that work out in gauge though. My local metal shop sells it in like 18 gauge or 16 gauge.

Thanks,

LEs

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted February 17, 2005 09:41 AM  
Depending on how weight conscious you are...

I'd go lighter on the body, like .028 or .032 or something. It is an easy way to take weight off the car. I figured it up one time and just going from .032 to .028 aluminum saved almost 2# per 4X8 sheet. Take that times 5 or 6 sheets and it adds up. Depending on what you are currently using, you could easily take 10-15# or more off the car. Also I beleive the painted version is lighter that getting unpainted sheets and painting it yourself.

I have seen cars that people didnt paint the frame, put the lightest aluminum on, and absolutely no decals to save weight.

To answer your question
.028- roughly 22GA
.032- " 21GA
.040- " 19GA
.060- " 16GA
There is a whole chart in the tool box if you need more.

[This message has been edited by dirtbuster (edited February 17, 2005).]

zeroracing
Dirt Forum Champ
Total posts: 1875
posted February 17, 2005 10:01 AM  
depends on what painted or unpainted you get, with the regular .040 painted when you get unpainted most the time it is really only like .032 so it is lighter to have the unpainted, but if you get the .040 unpainted that is the full .040 thick then it is heavier because they use the paint to get it up to the .040.
i am usually underweight a ways so have dont mind the extra weight.

hey dirtbuster if you want to save weight get ahold of me in a few weeks, i am going to attempt to build a carbon fiber roof and sails this year...not really for weight just for looks but it still will be light.

[This message has been edited by zeroracing (edited February 17, 2005).]

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