Feuling, Reaper Race Series 521 camshaft kit

Note: Product by special order only. To place the order, contact your MCS sales representative.
Chain drive.
This Feuling M8 cam kit includes chain drive cam, Race Series lifters and a cam installation kit including cam bearing, cam/crankshaft hardware and a gasket/O-ring kit allowing installation of the factory one-piece pushrods. Feuling recommends the optional Feuling HP+ 993528 high-strength one-piece pushrod kit, with a 0.165" wall thickness.
The Feuling 707450 rocker box fixing kit is also highly recommended to help prevent cylinder head cracking; this kit replaces the rocker arm shaft bolts with studs and nuts to help reduce stress on the rocker arm shaft spacers.
521 CAM - Aggressive pulling power with an "aggressive" sound, the REAPER 521 profile will stand out on 114" and larger engines with increased compression ratio. Machined heads are not mandatory, but will complement the camshaft and add even more pulling power throughout the range. The stock throttle body produces an excellent power band and using a high-flow throttle body will increase peak power figures. A high-flow exhaust system and air filter are strongly recommended for optimum performance. FEULING recommends pairing this camshaft with their RACE SERIES oiling system.
NOTE: Stock cylinder heads require high-lift valve springs, see FEULING 993530 BEEHIVE valve spring kit. SE cylinder heads have high-lift valve springs and will accept the 521 profile camshaft. High-strength one-piece pushrods are also highly recommended, see 993528.
The kit includes only the 993552 521 camshaft. RPM range: 2,250 - 6,250.
Valve lift Open Close Duration @ 50" lift @ BDC Cam centreline Intake .518 17 ATDC 34 BTDC 231 .162 98.5 Exhaust .521 51.5 BBDC 11.5 ABDC 243 .125 110 Overlap: 28.5
The Race series hydraulic lifters have a .200" total travel designed with a slower bleed rate to handle high valve spring pressures, increase engine RPM before valve float and feature increased roller clearance for aggressive ramp camshafts and clearance for the M8 front exhaust camshaft cam flange.
*Camshaft specifications measured at the tappets @ 0.050" lift with 1.61 rocker arm ratio
NOTICE: NOT FOR SALE OR USE IN CALIFORNIA ON ANY EMISSIONS CONTROLLED MOTORISED VEHICLE
Feuling does not recommend adjustments beyond stock emissions regulations.


Specifications


Brand
Feuling


Application
18-26 Softail; 17-26 FLT/Touring (excl. 23-26 VVT); 17-26 Trikes


Sales unit
Kit


Packaging weight
0 kg


HS Code
84831021


Motorcycle family
SOFTAIL, TOURING, TRIKE


Original name
Feuling, Reaper Race Series 521 cam kit