Jock itch (tinea cruris) is a fungus, the same one that causes athlete's foot and scalp ringworm. The groin area is the perfect place for the fungi to grow and cause a fungal infection because it is moist, warm and dark.
The camshaft lift is the resultant net rise of the valve from its seat. The farther the valve rises from its seat the more airflow can be provided, which is generally more beneficial. Greater lift has some limitations.
Valve lifters are the rods running from the camshaft inside the engine to the valve train on top of the cylinder head. The function of a lifter is to follow the shape of the camshaft lobe, which raises and lowers the lifter, causing the valves to open and close with the proper timing.alve lifters are the rods running from the camshaft inside the engine to the valve train on top of the cylinder head. The function of a lifter is to follow the shape of the camshaft lobe, which raises and lowers the lifter, causing the valves to open and close with the proper timing.