What Is Harley Stage 4

Max flow design for big displacement engines with large airflow demand.

What is harley stage 4. To start with The stage 4 kit does not come with the compressor heads. He is referring to the cams included in the se. All of the gaines are in the upper end of the powerband.

This kit makes 105-110 hp and 110-115 ft lbs on a consistent basis straight out of the box without a great exhaust. New cams - Harley Davidson Community HTH Randall. But higher number stage kits are well beyond just getting a new cam.

Only one air cleaner is available to fit. 200 Valves Step Lock Guides special valve seats 516 valve springs allow up to 750 of cam lift. Features new CNC-ported heads with 1mm bigger valves and fully machined combustion chambers.

Twist the throttle and hang on as the wall of torque launches it off the mark and carries it through to the 6400 RPM cutout. A stage one kit is basic air intake and exhaust all the way up to stage 4 which will be a large project such as air intake. Coupled with the kits high-lift SE8-517 cam high compression pistons and a 64mm throttle body and intake manifold this combination delivers a thrilling 126 ft-lb of torque and.

100 of proceeds go to benefit the Forgotten Angels of Florida charity. Make more power than the Stage 4 up to 4000 rpm. As the stage kits get higher in number the more parts and labor are involved.

In many cases it would include a larger throttle body injectors depending on the specific model. I achieve 100 TQ at 2750 RPMs and maximum torque of 114 is reached at 4500 RPMs and torque more gradually reduces from there compared to an SE 255. The Harley Stage 4 upgrade consists of ported heads and a high performance carburetor or throttle body.