Z06kern

iTrader: (18)

I bought a car with wolfe thur the floor sub frame connectors. The cage is welded to 2" x 3" mild steel outriggers. All the pictures I have show the hoops welded to 6x6 plates. Thanks!

T Pizzle

iTrader: (1)

Should not be a Problem

chrismorales75

That looks fine to pass cert.

Ari G

iTrader: (25)

Do you have to have a welding master cert to have the welds cert?

HAMRHEAD

iTrader: (8)

What do they look for to certify the cage? Any tests performed?

scott94z

iTrader: (1)

i think they sonic test, not sure. I'm getting ready to build mine too

chrismorales75

Sonic test for minimum .118 wall thickness for mild steel .083 for c-moly I think, look for weld quality and to make sure you have the right amount of points and that the cage is welded to 6x6 plates or to sub frames. The cage in the photos should certify fine.

85Iroc

iTrader: (12)

If I have bars going thru the floor, closer to the tunnel, that connect to the ladder bar crossmember, which connects to the subframes, would the main hoop still HAVE to have 6x6 plates or would maybe a 4 or 5" square plate be ok. I think I know the answer but that part of the cage was installed before I thought about certification several years ago.

Z06kern

iTrader: (18)

Thanks, now I just need to find someone to certify it.

Torkman15

iTrader: (2)

I wouldnt certify it till you need it certified. Are you planning on going faster than 9.99 right outta the box? If not i'd save the money till you need it because a cert is only good for two years.

kp

iTrader: (34)

The 75.00 is well worth it to get it certified, especially if you sell the car or plan on hitting some bigger events. They will check the tube diameters with a go/no-go gauge, sonic test the tubing, look at the welds (they have to be extremely shittty to not pass) and make sure all the points are there. Usually at the beginning of the season most local NHRA tracks have a day where they do chassis inspections right at the track.

Cert is good for three years on sportsman cages.

chrismorales75

It's best to make outriggers from subframes to the rocker panel and you won't need plates. If the main cage isn't welded to the frame or outrigger it must be welded to a 6"x6" plate 1/8" thick.

Z06kern

iTrader: (18)

Good info in this thread. Thanks!

cbrrmike

iTrader: (10)

for the cert, after 3 years can you just go back and recert the same cage or do you have to have anything done to it to recert?

TheOutlaw1

Did you MIG weld the bars and are the bars mild steel or chromemoly?

kp

iTrader: (34)

If they dont change the rules then you dont have to change anything.

chrismorales75

You just recert the cage when it expires.

Z06kern

iTrader: (18)

The bars are moly and I TIG welded all of them.