2021 PC December Skinny

DECEMBER 2021 THE DRAGSPECIALTIES dragspecialties.com 8 FEULING Designers of world-class high-performance parts for your M-Eight engine. The Race Series camchest kits include all necessary components to upgrade the camchest in one convenient package. Every part in these kits has been developed using extensive R&D research and the highest levels of quality control to ensure every part delivers maximum performance. When you want the best in engine upgrades for your American V-Twin, choose Feuling performance parts. RACE SERIES ® CAMCHEST KITS FOR M-EIGHT* • Feuling ® complete camchest kits include all necessary components from top to bottom of the camchest conveniently packaged under one part • These combination kits not only ensure each individual part is designed to work and function together, but to do so in total harmony • These camchest kits take the guess work out of the ordering process and provides the engine builder maximum reliability, peak performance and the coolest engine/​oil temperatures obtainable • Complete Camchest kits include: Feuling ® High Volume Oil pump, High Flow Camplate, Reaper ® series camshafts, Race Series ® full-travel or short-travel hydraulic roller lifters, fixed-length pushrods, Timken ® /​Koyo ® cam bearings, rocker arm studs/​nuts, gaskets, O-rings, ARP ® cam/​crank fasteners, washers, moly paste and Loctite ® • Race Series ® kits include a Race Series ® oiling system (billet 7075 oil pump, Race Series ® lifters, High Flow billet 7075 aluminum camplate) • Billet 7075 aluminum oil pump, which is 50% harder and stronger than the factory pump, holding tighter tolerances under temperature, deeper scavenge kidneys over Fueling HP+ oil pump • Deeper scavenge kidney ports over the HP+ series for even more scavenge flow volume • Race Series ® full-travel hydraulic lifters have a full .200” of total travel designed with a slower bleed down rate to handle heavy valve spring pressures, increase engine rpm before valve float and feature increased roller clearance for steep ramped camshafts and clearance for the M-Eight front exhaust camshaft lobe flange • Race Series ® short-travel hydraulic lifters have .115” of total travel and will increase rpm by decreasing valve float and valve-train harmonics while maintaining a quiet engine • The travel reduction reduces the amount of oil that is required to fill the inside of the lifter which reduces oil aeration inside the lifter on steep, fast action high lift camshaft lobes • 30% more pressure gear volume over stock for M-Eight Twin-Cooled motors • 53% more scavenge gear volume over stock for M-Eight Twin-Cooled motors • 27% more pressure and scavenge gear volume over stock for M-Eight Oil-Cooled motors • 42% more scavenge volume with port sizing, matched passages and holes to the engine case for M-Eight Twin-Cooled motors and M-Eight Oil-Cooled motors • 68% more oil volume to the crankshaft and connecting rod bearing for M-Eight Twin-Cooled motors and M-Eight Oil-Cooled motors • 15-25 degree cooler engine temperatures for M-Eight Twin-Cooled motors and M-Eight Oil-Cooled motors • 15-30 degree cooler oil temperatures for M-Eight Twin-Cooled motors and M-Eight Oil-Cooled motors • 10-30 more psi of oil pressure for M-Eight Twin-Cooled motors and M-Eight Oil-Cooled motors • Increase oil pressure, scavenge volume and engine oil flow • Quieter and smoother engine operation • Reduces wet sumping, blowby and oily air cleaners • Magnets in oil pump to help protect gears and pressure relief valve • Test results show 2 HP gain and 2 ft/​lbs of TQ gain to the rear wheel on M-Eight • Feuling test results show a 50% reduction of engine sump oil level • Feuling M-Eight oil pumps have the groove machined on the back cover to accept the factory crank bearing seal • Made in the U.S.A. NOTE: 508, 521 and 538 camchest kits require high lift valve springs PART #s 0926-2973 or 0926-2974. NOTE: 592 camchest kits require high lift/​high load valve springs PART #0926-3138. 0925-1412 0925-1415 0925-1416 PART # DESCRIPTION FOR 17-21 M-EIGHT OIL-COOLED MOTORS 0925-1412 508 camchest kit (includes short-travel hydraulic lifters) 0925-1411 521 camchest kit (includes short-travel hydraulic lifters) 0925-1417 538 camchest kit (includes full-travel hydraulic lifters) 0925-1418 538 camchest kit (includes short-travel hydraulic lifters) 0925-1413 592 camchest kit (includes short-travel hydraulic lifters) FOR 17-21 M-EIGHT TWIN-COOLED ™ MOTORS 0925-1415 508 camchest kit (includes short-travel hydraulic lifters) 0925-1414 521 camchest kit (includes short-travel hydraulic lifters) 0925-1419 538 camchest kit (includes full-travel hydraulic lifters) 0925-1420 538 camchest kit (includes short-travel hydraulic lifters) 0925-1416 592 camchest kit (includes short-travel hydraulic lifters)