Feuling tappet set, Race Series. Short stroke. OD +.0015"

Comes with 0.115" stroke.
Oversized diameter (0.8435" - 0.844"). Standard size is 0.8420" to 0.8423" OD.
Revolutionary new design with 0.115" total travel compared to a full-travel lifter with 0.200". These hydraulic lifters will increase RPM by reducing valve float and valve train harmonics, whilst keeping the engine quiet. The reduced travel decreases the amount of oil needed to fill the inside of the lifter, reducing oil aeration inside the lifter on high-lift, fast-acting cams.
NOTE: when there is oil aeration inside the lifter, the pushrod seat drops when the lifter rolls over the front ramp of the camshaft after compressing the aeration, thus creating a noisy and low-performance lifter.
Feuling short travel lifters must be set with 0.065" - 0.070" preload and, with normal engine heat growth, the operational preload of the lifter will be at or around mid-travel.
Machined from a steel body and designed to exceed the demands of high-lift camshafts and higher valve spring pressures, with a slower bleed rate. The RACE SERIES lifters maintain proper oil flow to the top end, increase engine RPM, valve train stability, reduce valve float and promote maximum valve lift.
Feuling recommends Race Series lifters for engines exceeding 185 lbs of valve spring seat pressure. FEULING recommends using a high-volume oil pump, which will result in quieter, better-performing lifters. Race Series lifters are compatible with FEULING HP+ or Race Series oil pumps and are designed for use in street and race engines. Developed on the Spin-Tron dyno and track tested, made in the USA.
• Improved performance!
• Quieter engine!
• Standard replacement through to Drag Race competition • Set FEULING SHORT TRAVEL tappets with 0.065" – 0.070" tappet preload.
• Precision ground needle roller bearing and high-chrome steel axle for long life and minimal friction • Extra-long, cold-forged, precision-ground and fitted plunger for controlled bleeding and pumping • High-flow quick-response disc-style check valve for better response at high RPM.
• Available in oversize diameters – save your heads! Ideal side clearance is 0.001" • Recommended for both race tracks and high-performance street engines • Sold in sets of 4 • Made in the USA
*FEULING RECOMMENDS PUMPING EACH TAPPET BY HAND BEFORE INSTALLATION, TO REMOVE ALL AIR AND PROVIDE A FULLY PUMPED-UP TAPPET. USING LOW VISCOSITY OIL SUCH AS ATF IN A SPRAY BOTTLE WORKS WELL.
See the Feuling 588060 tool to check the tappet bore diameters


Specifications


Brand
Feuling


Application
99-17 Twin Cam; 00-22 XL Sportster; 08-12 XR1200; 00-10 Buell XB (NU)


Sales unit
Kit


Packaging weight
0.565 kg


HS Code
84099100


Motorcycle family
DYNA, SOFTAIL, SPORTSTER, TOURING


Original name
Feuling, Race Series tappet set. Short travel. +.0015" OD