11-04-2010, 05:45pm
More on the type of use than outright hp figures
turbo are gentle on rods always a cushion of air or exhaust backpressure helping the change of direction at the top of the stroke thats why such a high figure is often quoted,
but supercharged , nos, NA or anything with heavier pistons should be much more conservative , then stroker with higher piston speeds i would also put under the heavier piston catogory , the effect on the bottom end would be similar
outright compression of the rod is not something i am too concerned about, bearings are much more at risk of damage from compressive force (detonation being the biggest likely prob)
turbo are gentle on rods always a cushion of air or exhaust backpressure helping the change of direction at the top of the stroke thats why such a high figure is often quoted,
but supercharged , nos, NA or anything with heavier pistons should be much more conservative , then stroker with higher piston speeds i would also put under the heavier piston catogory , the effect on the bottom end would be similar
outright compression of the rod is not something i am too concerned about, bearings are much more at risk of damage from compressive force (detonation being the biggest likely prob)