SFI Nitro Chassis Specs Revised

The SFI Chassis Specs for Top Fuel Dragsters and Nitro Funny Cars have been revised, effective October 31, 2013. The revised versions are designated as SFI Spec 2.3P for Top Fuel and SFI Spec 10.5A for Nitro Funny Car, and they are available from SFI for immediate use by sanctioning bodies and chassis builders. In addition to smaller clarifications made to the documents, the major change is the addition of Docol R8 high strength steel tube as an acceptable structual material for chassis construction. This addition follows the previous acceptance of Docol tubing in the SFI door car specs last year. Complete summaries of the changes made to both nitro specs can be found on our Tech Advisories page under the Tech & Safety tab above. Information on how to purchase the new specs may be found on our Drag Racing Chassis page.

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