American Motorcycle Dealer AMD 245 December 2019 | Page 51

M-8 High Flow Injectors Known for enhancing the performance of Harley- Davidsons with its engine performance packages, in April this year we featured new direct bolt-in M-8 cams from Derek Churchwell's DC V-Twin Performance - cams that Derek said deliver almost a 25% gain in horsepower and 20% torque gain when coupled with an aftermarket exhaust and air cleaner. The latest news from the Perry, Georgia based specialist is now offering high flow injectors for M-8 applications. These injectors provide a fuel delivery rate of 6.2 gps (grams per second) or 49.2 lbs per hour compared to the stock flow of 4.1 gps. This is an increase of well over 40% increased flow, "they are a must for Big Bore upgrades like the 124 and 128 ci packages we are doing for the stock 107 and 114 inchers," says Derek. "These injectors are a direct replacement bolt in for all Milwaukee 8 engines. If you are thinking of going to a bigger bore, porting heads or installing a larger throttle body then these injectors are what you need to get the job done." DC V-TWIN PERFORMANCE Perry, Georgia, USA Tel: [phone] www.dcvtwin.com 'Gringo' and 'Bonanza' Helmets "Twenty colorways. Two styles. One brand." The 2020 Biltwell DOT Bonanza and DOT/ECE Gringo helmets line-up features twenty colorways each, with six new Gringo options (seen here) and four new Bonanza options. "Better looking, more comfortable and more feature-packed than ever, these classic open- and full-face helmets boast yesterday's style with tomorrow's technology and are in stock to ship to dealers now!" Options include standard cheek pad sets and liners for the Bonanza and ECE and standard sets for the Gringo helmets. BILTWELL INC. Temecula, California, USA Tel: [phone] [email protected] www.biltwellinc.com M-8 Rocker Shaft and Hardware Kit In an effort to perfect Milwaukee-Eight engine valve train geometry, while improving durability, JIMS has developed performance rocker shafts and proprietary hardware. The rocker arm shafts are precision-machined from a low alloy nickel, chromium, molybdenum case- hardened steel. The hardware flats on the end of the shafts are held to a .0005” parallel tolerance, assuring the rocker is seated in the correct position with the pushrod cup and valve stem tip when installed correctly. JIMS has taken it one step further and also developed a 4130 stud and nut kit to replace the stock hardware used to secure the rocker shafts. Compared to a stock “bolt”, these JIMS manufactured studs allow the technician the assembly finesse required when torquing the rocker arm shafts on the cylinder head during engine assembly. These shafts not only improve the stock head configuration, but JIMS says "they are a must in a performance application with increased spring pressure." Available as a set or separately. JIMS Camarillo, California, USA Tel: [phone] [email protected] www.jimsusa.com DECEMBER 2019 51