Phasing a camshaft
Racer
Joined: Apr 2006
Posts: 495
Likes: 1
From: Valley Stream NY
If I'm not mistaken this is also known as degreeing in the Cam. This is when the machine shop or installer uses a degree wheel on the crank to make sure that the profile of the cam is in line with top dead center of the engine. It is a good practice but not always needed. If the installer has experience with that particular cam profile and your engine, then past experience tells him he has plenty of piston to valve . The crank shafts can be advanced or retarded to make up the difference if a multi slot crank gear is used. Retarding or advancing the cam will also allow the engine to produce a bigger low end or a larger top end charge.
Usually each slot is worth 3 degrees. Could be a bit different with today's LS engines. I'm going back 10 years when I had a Race Car. Ask your installer about it. He'll know .
Usually each slot is worth 3 degrees. Could be a bit different with today's LS engines. I'm going back 10 years when I had a Race Car. Ask your installer about it. He'll know .
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
If I'm not mistaken this is also known as degreeing in the Cam. This is when the machine shop or installer uses a degree wheel on the crank to make sure that the profile of the cam is in line with top dead center of the engine. It is a good practice but not always needed. If the installer has experience with that particular cam profile and your engine, then past experience tells him he has plenty of piston to valve . The crank shafts can be advanced or retarded to make up the difference if a multi slot crank gear is used. Retarding or advancing the cam will also allow the engine to produce a bigger low end or a larger top end charge.
Usually each slot is worth 3 degrees. Could be a bit different with today's LS engines. I'm going back 10 years when I had a Race Car. Ask your installer about it. He'll know .
Usually each slot is worth 3 degrees. Could be a bit different with today's LS engines. I'm going back 10 years when I had a Race Car. Ask your installer about it. He'll know .
