Originally Posted by
jagy Did you got a rod-knock?
No... but after reading a lot about torsional harmonics and other testimony I don't like them. There may be less of an effect on our motors since our cranks are short (IL-4) and most DE's are 8cw, but I personally don't bother with crank pulleys anymore. That and the fact that it was the only real thing I changed on my det setup a few years ago, they are just bad luck with me.
But as far as suggestions? I just go by the following: "You do you, and I'm a do me..." I'm not going to tell people not to use them, mainly because people will just say "blah blah blah 8 years blah blah and no problems here"... "(Insert knowledgeable SR guru's name here) said this"... etc. I just personally don't agree with them (especially if I planned to rev a lot, and especially if I invested money into my motor). I would rather invest in a l/w flywheel... and if I was that concerned I would buy the ATI.
No first hand crank snapping or extreme motor explosions on my end... but that's just how I feel.