1999-2006 big twin 2007-2013 big twin 1984-1999 big ... - S&S Cycle

S&S ® Step 2: Camshafts and PushrodsCamshaftsS&S Cycle is becoming known for camshafts. What you may not know is we grindour own cams in-house, at our facility in Viola, Wisconsin. Cams for the 4-StepPerformance Program are mostly the bolt-in type, although more aggressivecams can be used in Step 4 since the S&S CNC porting package includes high liftvalve springs. High lift springs are also available for stock heads.One unique feature of S&S cams, for 1999 and later big twins, is the patentedEasy Start centrifugal compression release system that allows a stock starter tostart just about any engine regardless of displacement or compression ratio.Another unique patented feature available in cams for late model bigtwins is the S&S gear drive. Get rid of troublesome stock drive chains andtensioners, and replace them with dependable gear driven cams. Moreaccurate cam timing and less potential for engine damage due to chain ortensioner failure.WATCH THE S&S EASY START CAMS CRANK TESTVIDEO AT SSCYCLE.COM/MEDIA/VIDEOS.PHPCams & Pushrods Step 2Dyno ComparisonFatboy® 583 Cam vs Stock CamDyno Comparison2009 FLHT with S&S® 585 Performance Cam vs Stock Cam10090807060583 CamPeak Corrected HP 86.6Peak Corrected Torque 98.5Gear Drive Easy Start Cam Kit96 Stock CamPeak Corrected HP 74.5Peak Corrected Torque 88.210090807060S&S 585 CamPeak Corrected HP 91.9Peak Corrected Torque 94.296 Stock CamPeak Corrected HP 74.3Peak Corrected Torque 86.3505040403030202015002000 2500 30003500 4000 4500 5000 5500 6000EngSpd RPM1015002000 2500 30003500 4000 4500 5000 5500 6000EngSpd RPMINTRO-14This dyno chart shows that the 583 cam is great for just about any application. Goodtorque, and better horsepower than the 551. If you need your bike to do everythingwell this is a great cam choice. Test bike was equipped with S&S slip-on mufflers andan S&S performance air cleaner. Stock results are shown for comparison.The S&S 585 cam is the one to choose if you are primarily concerned with peakhorsepower. Less low end grunt, but lots of top end. A good choice for lighter bikesand will bring out the full potential of a big bore kit when you move up to Step 3.Test bike was equipped with S&S slip-on mufflers and an S&S performance aircleaner. Stock results are shown for comparison.