what do they use for....

what do they use for the "tin work" inside race cars, is it alum sheet, or is it really tin sheet


need to cover door insides, and make a rear seat delete for my 02 stang

floor and fire wall have to be .032 alum or .023 steel hope that helps

Northwest outlaw wrote:floor and fire wall have to be .032 alum or .023 steel hope that helps

Not trying to nit pick you, but the steel needs to be a minimum of .0240".

you are right it is .024 LOL i think i got the 3 off tubeing .083 one of the brain farts you get .

Northwest outlaw wrote:you are right it is .024 LOL i think i got the 3 off tubeing .083 one of the brain farts you get .

No problem, just wouldn't want a tech inspector to kick someone for .001"....

In both the SFI 25.4 & 25.5 books there is a reference to a minimum of .035" steel (vs .024") for the "outer portions of the steel floor" if some of the assorted floor bars (1, 6A/6B, 7A/7B, 8A/8B, 9) are bent/angled up for exhaust/muffler clearance. When required the thicker .035" steel outer floor has to be stitch welded to the remaining inner floor, to the bent/angled bars, & to the body rocker panels.

Only problem with this rule is if a 'glass body is used with a 25.4 chassis. It's kinda hard to "stitch weld" A .035" steel outer floor to a fiberglass rocker panel.

Got to thinking, since inner door panels aren't the "floor" or a "firewall" or a "rear bulkhead" you should be able to get away with using even thinner materials for the door. In fact you should really be able to use what ever you want for the inner door panel since some people don't even bother using one on 'glass doors.

Hey dave was that pg 8 # 17 you seen that on 25.4 ? I thought it was only if the bars angled up? I have to read my book again.

In SFI 25.4 it's page 9, #17. It says ....."if the tubes are angled up or are bent".......

Of course it doesn't really say if they mean .035" is needed if ALL of said bars are bent/angled, or if they mean if ANY number of said bars are bent/angled. Just enough of a gray area for an inspector with a chip on his shoulder to bitch about.