What happens if you choose the wrong camshaft?
The wrong cam can be a major disappointment. One of the most important decisions an engine builder has to make when planning and building an engine is selecting the “right” camshaft. There are dozens of brands and thousands of different cam grinds to choose from, with different lift, duration and lobe center specifications.
What do you need to know about camshaft selection?
It’s all about balance and correctly matching the cam with the cylinder heads, compression ratio, intake and exhaust systems, and RPM range where you want the engine to produce the most torque and horsepower. The camshaft is not only the heart of the valvetrain but the engine itself. The right cam can deliver exactly what you want.
When does a cam line up with the crankshaft?
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.
Are there two camshafts in a four cylinder engine?
So in an inline four-cylinder engine with a SOHC, there would simply be a single camshaft in the engine’s head. But in a V8 with SOHC, there would be two camshafts overall (one on each side of the V). The most extreme camshafts come in the shape of those featured on the Bugatti Veyron.
Do You need Timing marks for a camshaft?
The camshaft timing marks should be aligned correctly before proceeding. Tip: Some engines will not have timing marks. Those engines require the use of special tools that will hold the crankshaft and camshaft in place during servicing, and you may need to enlist the help of a certified mechanic.
When does a camshaft fail in an engine?
Typically a camshaft does not fail unless there is another serious issue with the engine – in which case the larger issue will need to be taken care of first. You may also be looking into changing a camshaft of you are wanting to increase the performance of your engine.
What should I look for when choosing a camshaft?
Scott Scovrowski of Howards Cams said the airflow numbers on ported or aftermarket cylinder heads are important to know when picking a cam because the profile of the cam affects port velocity. The cam’s airflow capabilities should closely match those of the cylinder head to produce maximum torque.
So in an inline four-cylinder engine with a SOHC, there would simply be a single camshaft in the engine’s head. But in a V8 with SOHC, there would be two camshafts overall (one on each side of the V). The most extreme camshafts come in the shape of those featured on the Bugatti Veyron.