![]() That means often times the lifespan of treated cotton fabrics are shorter than other materials. Treated cotton driving suitsare often less expensive, but the chemical treatment can begin to lose effectiveness after each cleaning. The most common materials used on racing suits are treated cotton fabrics and Nomex®. Simpson offers Nomex suits for the ultimate in fire protection.īudget and sanctioning body rules can play a role when choosing your racing suit material. Racing Suit MaterialsĪs we mentioned, SFI rating and driving suit design are often related. Consult your race sanctioning body for your specific requirements. Likewise, FIA is the European association that issues safety standards for international race cars and equipment. The most common requirement by racing circuits is the SFI 3.2A/5 rating however, alcohol or nitro drag racing often require suits that meet the 3.2A/15 or 3.2A/20 spec. Thermal Protective Performance Chart SFI RatingĬlick here for a handy downloadable PDF version of the racing suit thermal protection chart above.Īgain, you’ll need to verify your racing sanctioning body’s rules to adhere to the proper SFI rating. The higher the garment rating, the better the material. This value is divided in half to determine the amount of seconds it would take for the material to allow a second degree burn. Using this test and a mathematical calculation, a number value is assigned to create the TPP value. The TPP is derived by performing a test procedure that exposes fabric to two different heat sources. This specification is based on the garment’s ability to provide thermal protective performance (TPP) against radiant heat and direct flame. Used in sanctioning bodies like NHRA and NASCAR, the SFI Foundation’s racing suit specification 3.2A tests a material’s fire retardant capabilities. ![]() For that reason, it’s important to know your sanctioning body’s requirement for SFI (United States) or FIA (International) ratings. Safety ratings and racing suit design are often intertwined. To help you strike that perfect balance, we consulted with the experts at Impact Racing and Simpson Racing to identify six key things to consider when choosing a racing suit. It really comes down to finding the right balance between safety, comfort, and budget. Whether you’re an entry-level grassroots racer or professional Top Fuel driver, the right driving suit will help you live to race another day. Now is the perfect time to revisit the importance of choosing the right racing suit.
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