How do you read cam numbers?

How do you read cam numbers?

Reading a Cam Card: Lobe Separation Angle (LSA) This figure is derived by adding the intake center line plus the exhaust center line and dividing by two. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees.

How do I find out my cam specs?

Measure the base circle diameter and subtract that number from the overall lobe height. You might be able to find a cam with matching lift numbers.

How do you identify a cam?

Take your digital caliper and measure the smallest diameter on the cam. This is called the base circle. This cam measured at 1.10 inches and 87 thousandths. The next value you will need is the largest diameter on the cam, the lobe part, which is called the base circle and lobe lift.

What happened to lunati cams?

At the SEMA show, a group of private investors from North Carolina bought Lunati away from Holley. The investors invited Ron Coleman, the owner of Comp Cams, to join with them as another private investor. Comp Cams, the company, owns no part of Lunati.

What do cam SPEC numbers mean?

The definition is simply the distance in degrees, as measured on the cam, between the point of peak lift on the intake lobe and the peak lift on the exhaust lobe. There are several measurements found in a cam’s specifications, which give clues to the performance characteristics of a given grind.

How do I know how long my cam is?

How is it measured?

1. Using a Dial Indicator and Degree Wheel, find the opening and closing points of the valves at 0.050 in. of lift. If the intake valve opens AFTER TDC, use a negative value. If the exhaust valve closes BEFORE TDC, use a negative value.
2. Add the numbers together.
3. Add 180° to find duration.

How do you identify an unknown camshaft?

How to Identify a Camshaft by Number

1. Find the model prefix. The model prefix is the first part of the camshaft number, and it describes the vehicle that the camshaft is meant for.
2. Find the profile or grind number.
3. Find the exhaust number and add it to the end of the list of numbers.

How do I find my cam centerline?

Intake Centerline Method Finding the centerline is easy. Rotate the engine clockwise until you find the maximum lobe lift, then zero the indicator. Now rotate backward about 0.100 to 0.150-inch to compensate for timing chain slack. Then rotate clockwise until you reach 0.050 inch.

Is lunati made in USA?

Lunati’s Signature Series cranks offer many of the same basic features as our Voodoo cranks, but with more bells and whistles. These American-made cranks feature gun-drilled main journals, profiled counterweights, and a deep-drilled crank snout to better support balancers and blower pulleys.

How do you identify a crane cam?

How to Identify a Crane Cam

1. Examine both ends of the camshaft. The end of the camshaft will be embossed with a two-digit engine prefix code, a grind number, and the series name of the camshaft.
2. Using the information on the camshaft, look up the information in the Crane Cam Catalog.

What do the numbers on the end of a camshaft mean?

The first two numbers are the degrees of opening being 210 for the intake and 218 degrees for the exhaust given normally at . 050 inch of lift. The next two numbers are the valve lift of intake and exhaust in thousands of an inch. The final number is the degrees of overlap.

What do the numbers on my camshaft mean?

The first two numbers are the degrees of opening being 210 for the intake and 218 degrees for the exhaust given normally at .050 inch of lift. The next two numbers are the valve lift of intake and exhaust in thousands of an inch. The final number is the degrees of overlap.