From the Office Of AKRA
AKRA Rule Book Updates
The minimum protrusion of the e-tube into the Venturi must be check by the
newly approved NO GO gauge Huayi .488” or Ruxing .479. Change (Ruxing .479 to Ruxing .478)
A. Head Gear
Add(Full-face helmets designed for competitive motorsports use, that comply with Snell Foundation specifications M2005, SA2005, SA2010, K98, K2005, M2010 or SFI 24.1, 24.1/2005(Youth), 24.1/2010(Youth), 31.1A, 31.2A, 31.1/2005, 31.1/2010, 41.1/2005, 41.1/2010, 41.2a or FIA 8860-2004 or Snell-FIA CMS/CMR2007 or ECE-22.05 or newer are mandatory. )
BOX STOCK AMATURE/NON PRO Age 15 to 17 years –375 lbs. – 87 Octane Gas Only - Approved engine: All 6.5 Clone OHV Engines, with .550 inch maximum intake restrictor, and AKRA approved Exhaust System required. Steel drum shoe type clutches only. (Tires – Local Club Tire Rule)
Piston to be weighed with the oil ring assembly on piston, minimum weight 145 grams.
2. Wheelbase: 43.0 inches maximum, 39.75 inches minimum. Wheelbase is
measured from true axle centerlines, each side. This measurement includes all sprint chassis.
(Add) If single rail nerf bars are used they must be of Z bar design to protect driver from side impacts. Minimum diameter of 1” tubing OD and .065” wall thickness minimum.