Roll Cages vs. Roll Bars in higher class cars

[SCOTT SST2871]

Originally Posted by rallye bob

i also think this is incorrect..... No cert. Required on a cage until a 9.99 et is attained...
I run a cage, no cert. @ 10.31 et....

ditto

[Larry Curtis]

There is a track in WI that states that this is a rule, but I just looked it up and the rule specifically states that you only need a cert if you are running 7.50-9.99. Sorry for the misleading information.

[Ian Hill]

also, contradictory to what was posted below and another post a couple months ago on this board, that overly bashed a chassis builder for not fully welding the cage on the halo attachment points. the cage does not have to be fully welded. as long as the cage is properly fit and welded properly 3/4's around the tube and corner gussets are added then it will pass tech with flying colors! gussets can be in the form of small corner plates or small diameter round tube. this is how chassis builders are able to tuck the cages up to the headliner real tight on cars without cutting holes in the floor! those silly little gusset plate or small diameter roll bar tubing welded in the corners aren't just there for looks.

don't let the flashy paint fool you!

Ian

[69Cobra]

Interesting...

[Dan Lattimore]

Do you have to run a window net in a stocker that is not required to have a cage but does?

[Jeff Lee]

Once you install a cage you have to follow cage rules. That means nets are required. NHRA looks at it that once your at that level of having a cage, even if it runs 15's, you have to conform to all of those safety rules.
Same as seatbelts. You can have a 15 second car with OEM belts and leave them there forever. But once you put aftermarket belts in, you have to recert or replace every two years.

[Greg Hill]

Originally Posted by Jeff Lee

Once you install a cage you have to follow cage rules. That means nets are required. NHRA looks at it that once your at that level of having a cage, even if it runs 15's, you have to conform to all of those safety rules.
Same as seatbelts. You can have a 15 second car with OEM belts and leave them there forever. But once you put aftermarket belts in, you have to recert or replace every two years.

Jeff, you don't have to have a net unless you run under 10 seconds even with a cage.

[james schaechter]

Originally Posted by Jeff Lee

Once you install a cage you have to follow cage rules. That means nets are required. NHRA looks at it that once your at that level of having a cage, even if it runs 15's, you have to conform to all of those safety rules.
Same as seatbelts. You can have a 15 second car with OEM belts and leave them there forever. But once you put aftermarket belts in, you have to recert or replace every two years.

Maybe that was the case in some divisions or when you raced last, but it does not seen to be the case now.
We inquired about window nets with a cage and the tech official said that if the car required a cage, yes, but if you had a cage that was not required it was not necessary.
A friend of ours had a P/Stick biscayne with a rollbar and it didn't even need new belts every 2 years when he ran it! Go figure.

I guess that is why the tech guys in each division have email. I would not follow my tech advice or anyone else's here. Your Division tech person is the one that needs to answer these. I doubt if a print screen from any of us will save you on any ruling disagreements with tech. LOL

I do think a moly cage is the way to go. My 2 cents.

[Michael Kilduff]

Originally Posted by Jeff Lee

Once you install a cage you have to follow cage rules. That means nets are required. NHRA looks at it that once your at that level of having a cage, even if it runs 15's, you have to conform to all of those safety rules.
Same as seatbelts. You can have a 15 second car with OEM belts and leave them there forever. But once you put aftermarket belts in, you have to recert or replace every two years.

Maybe the seatbelt rule is interpreted differently from division to division, but I have a P/SA that has an aftermarket belt dated 1994 in the car. The person I bought the car from went through NHRA Div 1 tech many times with these belts and so did the previous owner from about 1999 until 2007/8 or so.

I passed tech in IHRA Div 9 with the same belt in 2010, plan on taking it through tech again with that belt in 2012. I will inquire within the sanctioning bodies just to be crystal clear though before next season starts.

I would think a quality aftermarket belt and latch is about 20 times stronger and safer than a 44 year old factory original belt.

[J&P]

Originally Posted by Ian Hill

also, contradictory to what was posted below and another post a couple months ago on this board, that overly bashed a chassis builder for not fully welding the cage on the halo attachment points. the cage does not have to be fully welded. as long as the cage is properly fit and welded properly 3/4's around the tube and corner gussets are added then it will pass tech with flying colors! gussets can be in the form of small corner plates or small diameter round tube. this is how chassis builders are able to tuck the cages up to the headliner real tight on cars without cutting holes in the floor! those silly little gusset plate or small diameter roll bar tubing welded in the corners aren't just there for looks.

don't let the flashy paint fool you!

Ian

Where are you getting this from?Where in any rule book does it state this?There are ways of welding these joints 100%... anything less is hack

Pete