When did John Andrews start making camshafts?
John Andrews started Andrews Products in early 1972 and started selling cams in 1974. Since then, the company has come a long way and now uses state-of-the-art engineering design and manufacturing technology for producing superior quality camshafts, along with a series of other components.
Why is there less compression in a camshaft?
The reason for this is that cams designed for big, high-output engines hold the valve open as long as possible. This results in less compression pressure than a stock cam, which in turn creates less power than with the stock cam.
What does the timing on a camshaft mean?
JA: Cam timing refers to the crankshaft positions in degrees where the intake and exhaust valves open and close. HB: In regards to a Twin Cam, what is a base circle, and what does the term base circling mean? JA: The term base circle means the lowest lift point on a cam lobe.
What should I look for in a Harley Davidson camshaft?
While there are no hard and fast rules for picking a cam for a specific application, some basic guidelines are worth considering. Keep in mind that performance camshafts are usually chosen for the basic purpose of producing more power from your engine. The three questions to answer before choosing a new cam for your Harley Davidson® motorcycle are:
Is the Andrews lift ev27 grind a good Cam?
Thanks to Andrews for your good cams and thanks to HD for having an acute case of chronic corporate greed for making this experience possible. You won’t break any records off the line from a standing start, but you WILL notice a difference when you go to pass somebody for the first time after upgrading to this cam.
How big is the roller chain on an Andrew Cam?
Both ends of the cam are the same diameter. On the bottom is the new roller chain along with one Andrews conversion cam. On the case side of the cam (left in this photo), the diameter is 0.875 inches to fit into the existing cam bearing in the case, while the outer diameter of the cam that spins in the cam support plate is larger.
What to do with old Andrews cam gear?
Use one of those big illuminated magnifying glasses and a carbide scribe to make index marks on the old gear, indexing off the edges if the keyway on the camshaft. I noticed that the new cam gear was already scratched in such a way.
What kind of bearing do you need for Andrews Cam?
1. Replaced factory INA cam bearing with a Torrington bearing, which is a necessary upgrade for reliability. 2. This cam needs to be shimmed in later year Evo engines. Simply order a 0.055″ shim and put shim between thrust washer and the cam. (Note: assembly order of thrust washer and shim are critical). 3.