Upon reading further in the gcr i found appendix i.
Spec miata roll cage rules.
When building a race car one of the most misunderstood parts of the build can be the roll cage.
We have designed the strongest lightest weight roll cage kit we can for the e46 bmw.
Roll cages for gt and production based cars.
I would like it to be me but the others are almost as good 2 buy the book.
There are multiple contradictions between the two sets of rules with one example being the maximum base plate area being 100 sqin for 2007 and 144 for 2010.
Different frame designs and modifications made to that frame all require different attributes to the cage s design.
The rules are intentionally designed to be more open than the showroom stock class but more restricted than the improved touring class.
The spec miata sm class is intended to provide the membership with the opportunity to compete in low cost production based cars with limited modifications suitable for racing competition.
The roll cage must attach to the vehicle structure within the passenger compartment in a minimum of six 6 points as specified in these rules.
After blowing off the inch of dust that had accumulated on my 2010 gcr i decided to peruse section 9 4.
Complete roll cage kit for your spece46.
Meets all rules and regulations for scca nasa bmw cca icscc and others.
01 09 20 member advisory memo ma 20 01 spec miata hoosier sm7 5 effective date 02 04 20 member advisory memo ma 20 02 tires and configuration vts documents in touring 02 10 20 member advisory memo ma 20 03 data box mounting plate for prototype and formula cars.
We break down the rules bar by bar using a chris alston s chassisworks pre bent cage on a 65 stan.
The roll cage shall be integrated into the frame or chassis.
The kit weighs roughly 100 lbs once installed in the vehicle and when installed properly is approved for scca nasa icscc and other sanctioning bodies competition.
The roll cage typically ships within 48 hours of order placement.
All tubes are fully coped and ready for installation.
1 buy a cage kit from one of the popular suppliers.