Quote Originally Posted by 1gary View Post
Today's gas require a lower compression ratio.That statement is without question true. The thing that gets me is why would anyone build a engine that the SCR is too high and then use the DCR to bleed of the compression via cam timing or for that matter any other devise??. You would think a more straight forward approach would to build based off the SCR. Then try to keep as much combustion pressure as possible. It just seems like a patch work solution to the SCR using the DCR.
most big dur cams will do that job . there more to this.it.s not so cut and dry i will not get in to it all on here . but i done it a time or two with real engine you put oil and fuel not paper engines back before any soft ware was out or home computers .this was when i did not have the machines and tooling to rework stuff.i will not say if i still do it