I am wanting to know what changeing the lift of the cam will do? When you change duration --> more overlap -->less torque and so on and no one seems to mention LIFT, WHY?
If you had a 2 sets of 256 cams, one at 7.1 and the other at 8.1 lift what will this do? Will a 256 8.1 lift cam have more power than say a 288 7.1 lift cam but at a different RPM?
More lift means more air can flow past the valves... it also means more strain on your valve springs.
It sounds like you need to do quite a bit of research on camshafts... there a few good sites around, hit google with a search like "camshaft duration overlap LSA" and you'll find yourself a few good explanations.
I had a small read and will read more later. I am going to put some big port cams into my 100kw small port and was thinking that the increase in lift would give me more gain than the extra 8 degrees of duration. Now you have got me thinking about the valve springs. I am sure that they would be fine since they are standard cams but my v-springs have been use to there current lift for a long time now.
Sun, 13 November 2005 11:55
