Quote:
Originally Posted by Greg Hill
Danny, it's been my experience on a small block with 1.5 rockers .100 is .007 more lift.
|
Greg
You are correct in that most of the time by lengthening the push rod will add lift because you have made the max lift to come in at a later time. You have used the extra length as a tuning aide to move the max area of the curve where you wanted it. I have seen motors actually slow down when doing this because you have moved that portion of area under the curve to a different spot and the engine may or may not like it. If it helps, then have your next can ground with that area added to the camshaft instead of the pushrod and start back at zero geometry. This is the tweaking of horsepower that us racers are so good at maximizing HP with old setups that many people have run for years and you continue to beat them because you do not mind changing things. This by all means doesnt mean that this is the gospel but you have to start some place to arrive at the end.
reed