Re: Cruisin' the Coast
Posted: Mon Oct 04, 2010 11:08 pm
Ray,
That's the problem, it already has a "small" cam What I can find it looks like you have around a .410" lift at the valve both intake and exhaust. The advertised duration is 249º intake duration and 269º exhaust duration. It looks like the intake lobe center line is 117.5º and the exhaust center line is 101.5º so the cam has a center angle of 109.5º. The cam looks like it is retarded about 8º. It has a very small duration intake lobe compared to the exhaust so they must be doing something for emissions.
It did say that your engine has hydraulic roller lifters so you could actually run those again on a new camshaft. You could just get a new camshaft and some new springs with a little more pressure. The stock springs only have 85# on the seat and 200# open pressure.
John
That's the problem, it already has a "small" cam What I can find it looks like you have around a .410" lift at the valve both intake and exhaust. The advertised duration is 249º intake duration and 269º exhaust duration. It looks like the intake lobe center line is 117.5º and the exhaust center line is 101.5º so the cam has a center angle of 109.5º. The cam looks like it is retarded about 8º. It has a very small duration intake lobe compared to the exhaust so they must be doing something for emissions.
It did say that your engine has hydraulic roller lifters so you could actually run those again on a new camshaft. You could just get a new camshaft and some new springs with a little more pressure. The stock springs only have 85# on the seat and 200# open pressure.
John