Originally Posted by Corse-R
Maybe the breakage of cranks should be caused by something during the break-in... what temperature get the engines during the initial tanks?
After time, people still continue breaking Sirio crankshafts, but... what amazes me is that some people break them and some people not... something should be wrong with those break-in procedures.
People still use them like Novas, and run them at Nova temps... but those puppies like more heat (around 100ºC over air temp is a good ballpark figure).
i think its just when i rolled the car and crashed hard,i know ppl did it with a jp too. i think the crank is too hard,i break it in just like all my other motors. the motor is very fast but you just have to be careful with it,its just like real motors high HP you may have probs if your not careful,but i still like the thing it sounds so cool LOL