Questions and answers

How thick should a roll cage be?

How thick should a roll cage be?

The roll cage must be constructed of magnetic steel tubing that is a minimum of 1 ½” in diameter, with a minimum tubing thickness of . 095 (wall thickness). The roll cage must be located within the stock OEM parameters of the doors of the vehicle.

What does homologated roll cage mean?

Homologation is the term applied to the certification process which ensures that a safety structure has been designed and constructed to a defined technical specification which in turn assures that a predetermined level of performance is achieved.

Does a roll cage need to be certified?

To compete in any race or rally your roll cage will need to comply with either MSA or FIA regulations. Custom Cages has certified the majority of popular roll cages. All other roll cages comply with MSA/FIA regulations and receive a Letter of Conformity for competitors to present to scrutineers.

What material is used for a roll cage?

Cage materials typically include hot rolled electrically welded (HREW) steel, drawn over mandrel (DOM) steel, and chromoly DOM steel. In respective order, they increase in strength but also increase in price.

Do roll cages have to be TIG welded?

However, the NHRA Rules in Section 20 specify the general rules for roll bars before a car can go racing in a sanctioned event. The general specifications from the NHRA include: All 4130 chromoly tube must use a TIG heliarc process. Mild steel welding with an approved MIG wire feed or TIG heliarc process is acceptable.

What is the best material for a roll cage?

The most popular metals are T45 and CDS, which are both accepted by the authorities as recognised roll cage appropriate.

How much does a roll cage cost?

Generally speaking, expect to pay $2,500 to $4,000 for a basic custom rally roll cage and seat mounts. The same guy who is doing the cage work might do other work. Removing sound deadening material is one example, you can do that yourself with some dry ice from the super market.

Can I make my own roll cage?

Building your own roll cage makes for an excellent project, but if you are not confident that your welds will be of a high enough quality then you should leave it to a professional. As we’ve mentioned before, the primary purpose of a roll cage is safety, and bad welds do not make for safe cages.

Can you make your own roll cage?

Is Tig stronger than MIG?

Bottom Line. TIG welding produces cleaner and more precise welds than MIG welding or other Arc welding methods, making it the strongest. That said, different welding jobs may require different methods, while TIG is generally stronger and higher in quality, you should use MIG or another method if the job calls for it.

Why must you never pull a roll cage?

Although roll cages can be pulled to their destination, this creates high levels of impact stress, which can cause strains and injuries in the operator.

Can you build your own roll cage?

What are the requirements for a roll cage?

Roll cages are mandatory for all vehicles. Several specifications for rollcages may be used: 1 An FIA approved roll cage (with either FIA homologation certificates or ASN homologation certificates). The homologation of any such rollcage must be current with the date of logbook issue.

What are the requirements for a roll cage NHRA?

Roll Cage Nhra Requirements 10 out of 10 based on 769 ratings. hi, do your self a favor, buy a NHRA rule book. then you what requirements you need to meet. 11.49 is the break for a roll bar. not 11.99. another thing, a roll cage will require a window net. to run 9.99, you have to have a certified …

What kind of tubing do you need for an 8.50 roll cage?

The tubing size requirement on 8.50 cages are 1 5/8-inch x .118-inch mild steel or .083-inch chromoly. For 10-second and slower cars that only need roll bars, the size minimum is 1 3/4 O.D. x .118 mild steel or .083 4130 chromoly tubing, so this is another aspect to take into play when building or expanding a roll cage as your vehicle gets faster.

How big is a 38mm roll cage?

38mm x 2.5mm (1.500” x 12swg”) or 40mm x 2.0mm (1.6” x 0.083”). (For roll cages/bars approved prior to 1.1.95). 38mm x 2.5mm (1.5” x 0.095”) or 40mm x 2.0mm (1.6” x 0.083”). 1.4.2. In selecting the steel, attention must be paid to obtaining good elongation properties and adequate weldability.