What is the purpose of adjustable cam gears?
Vernier adjustable cam gears allow the cams to be advanced or retarded in relation to the crankshaft, or by adjusting just one camshaft, the amount of overlap (time when the intake and exhaust valves are open simultaneously) can also be altered.
Are adjustable cam gears necessary?
The OEM cam gears are made for a comfortable ride with a set amount of horsepower and torque (more like intake and exhaust timing) and don’t need to be adjusted. Aftermarket ones are made adjustable so you can get the most most horspower and torque out of your car as possible.
How do you do cam timings?
Timing in the Camshaft. Rotate the crankshaft clockwise to 90 degrees after TDC. This will make sure all the pistons are half way down the bore. Now position the dial gauge so that it can read the lift of the inlet valve of number 1 cylinder from the top of the valve retainer (see left).
How much cam Lean is acceptable?
Registered. So a friend and I were having a discussion about cam lean and Binary cam systems and our conclusion was that 3/16 cam lean or less is acceptable and that any more than that is to much.
Does the crankshaft turn the camshaft?
The crankshaft spins and this spinning turns the timing belt or chain, which rotates your camshaft. This is your rotational motion. Your camshaft takes all this rotational motion and uses it to repeatedly raise and lower your engine’s intake and exhaust valves.
What do you do with adjustable cam gears?
To shift or move the powerband up higher along the rpm range (for 1/4 mile et. improvement), you need to increase the overlap. You do this by tightening the lobe separation angle (LSA) between the intake cam’sand exhaust cam’slobe centers with your aftermarket adjustable cam gears .
What is the purpose of degreeing a camshaft?
The purpose of degreeing a camshaft is to correct the errors and tolerances in the machining processes of the engine that can affect camshaft timing. COMP Cams suggests the intake centerline method as the most simple, quick, and efficient way to degree a new camshaft. Instructions for degreeing can be found later in this booklet. 3
How does advancing or retarding a camshaft work?
Advancing or retarding the cam pushes the centerline of the camshaft to one side or the other of the crankshaft centerline. This changes the Timing of the valve opening and closing events, in relation to the position of the piston in the cylinder. How is it measured? Find the lobe centerline in relation to the piston’s position in the cylinder.
What happens when a cam is installed straight up?
When a cam is installed “straight-up,” the imaginary centerlines of the two shafts line up exactly. Advancing or retarding the cam pushes the centerline of the camshaft to one side or the other of the crankshaft centerline. This changes the Timing of the valve opening and closing events, in relation to the position of the piston in the cylinder.