| | | quote | Originally posted by Fiero1Fan:
I am planning on putting a new cam in a 3.4l pr engine that I have. I was originally looking at getting the Crane/Compcam h272 . I have now found an Erson cam with almost the exact values. The Erson cam is a lot cheaper.
|
|
I would advise you to take care when evaluating the specs ("with almost the exact values") of Erson's cams, asking, for example the specific lifts (e.g., 0.009 inch? 0.050 inch?) at which their advertised and effective cam duration measurements were taken for that particular cam. Then ask the same questions of Crane Cams for their H-272-2 cam.
I raise this caveat because in asking these same questions years ago, I found Erson was
manipulating their duration measurements to suggest their cams had
much more modern designs --- e.g., faster "ramps" that seemed too good to be true (and were) --- than did Crane Cams. In fact, I found for my application that Erson actually had a much
less modern design, probably
years behind the Crane design.
More specifically, one practical disadvantage of what Erson was doing was that it would mislead an unsuspecting potential customer into thinking the Erson cam was the best, when actually, its outdated design required the Erson cam to be noticeably more "unstreetable" (e.g., exhibiting a poor idle quality) just to reach the same level of horsepower as that produced by the Crane cam.
In fairness, that was years ago, and maybe Erson has become more honest in their representations to potential customers.
By the way, are you aware of an Erson website page showing that they even offer any cams for the pushrod 60
o 3.4L V6 engine? I couldn't find one.
In any case,
caveat emptor! 
