Originally Posted by
dinasrt
What I have noticed for sure is that when I first got the SRT6, the SC engagement was tame and smooth. Since I have fully modified it with just about epvery mod., it now has a buck at 2900 rpm(wife hates it!) unless you start off aggressively(getting to that specified load quicker and engaging the SC before it reaches the 2900 rpm.). To not feel the buck/jerk, we need to get off the line quickly. This isn't such a good thing for smooth daily driving.
Could it be that with less belt slip the SC gets up to speed faster from the free wheeling condition and result in a faster power surge? The magnet faces would probably slip a bit more as well. As the engine revs faster the SC has to catch up to something that is moving faster and faster. Maybe the fuel requirements lag behind for a moment and then suddenly catch up resulting in the surge.
Smaller SC pulleys and or larger crank pulleys with PSKs would be the worse condition for this obviously.
The dog bone springs in the SC pulley would be under greater stress and lead to earlier failure.