Post by
float_6969 »
https://forums.nicoclub.com/float-6969-u780.html
Wed Oct 14, 2009 4:27 pm
As other have stated, supposedly, the difference between the "pon" and "pro" cams are that the "pon" cams are pre-indexed, meaning that the ideal cam timing is built in. This is probably assuming a completely stock motor that hasn't had the head or block re-surfaced, and is using a brand new timing belt with good tensioner. It's probably also assumming a lot of other variables as well.
IMHO I think it basically means that they don't NEED cam gears to the same extent that they are needed for the procams, but chances are that you could probably gain a couple of HP by putting the car on the dyno with adjustable gears and tuning it.
Chances are also good, that a couple or HP isn't really going to be worth the trouble and so the PonCams are basically drop in and don't need gears to see good gains from them.