Table of Contents
What are shaft mount rockers?
Shaft mount rockers are the strongest design. They provide rigidity and stability. They also allow for better valvetrain geometry. Shaft mounts are ideal for race engines that operate at high rpm (over 7,000).
What are the different types of rocker arms?
The following types of rocker arms are used in engines [606]: stamped steel rocker arm, roller tipped rocker arm, full roller rocker arm, shaft rocker arm, center pivot rocker arm, and end pivot or finger follower.
What does a rocker stud girdle do?
A stud girdle clamps onto your engine’s rocker studs, essentially locking your rockers together to deliver the stability you need in a high-rpm performance engine.
What are pedestal mount rockers?
A Pedestal Mount Rocker Arm has a pivot point that is bolted to the cylinder head. In some cases, the head may have a pedestal machined into it. In other cases, the pedestal is a separate piece.
What is shaft mount?
Live Chat. IronHorse shaft mount gearboxes are mechanical power transmission components that drive a load at a reduced fixed ratio of motor speed. Attaching to the shaft of the driven equipment, these gearboxes are available in up to 25:1 ratios, and include a torque arm used to prevent rotation.
How much lift do 1.6 roller rockers add?
With a 1.6:1 rocker, this gives us 0.508-inch valve lift at max lift, an increase of 0.031 inch. It doesn’t sound like much, yet it was enough to show a sizeable gain, mainly because it increases the amount of time that the valves are open at higher lifts, allowing more air to flow through the heads.
What’s the difference between rockers and roller rockers?
A roller rocker is different to a normal rocker because it has a roller that comes in contact with the end of the valve stem rather than a plain metal tip.
Is a stud girdle necessary?
Properly installing a stud girdle allows you to still set valve lash and make the necessary adjustments for optimal valve operation. The Dart video is less than four minutes and is a must-watch if you’re building a performance or race-bred engine.
How are rocker arms mounted?
A Stud Mount Rocker Arm is secured to the cylinder head by a stud. The studs can be screwed in or pressed in. The rocker slides over it. Then, it’s held in place by a locking nut.
What is shaft support?
Shaft support blocks enable clamping of shafts, type SB and eliminate the need for bolts to maintain shaft position. Shimming is suggested for high precision applications to eliminate the effect of variations in surface of base or manufacturing tolerances between supports.
Do 1.6 roller rockers add horsepower?
While power went up 0.4 hp and 1.5 lb-ft, the average didn’t show any real gain by going from the 1.6:1 to the 1.65:1 rockers because we’d exceeded the ability of the heads to flow more air.