Originally Posted by
BigC2007
Yes I agree with you what we do is heat up the oil @ 200 degrees F then run the motor at 900 rpm for 2 hours. Then we let the motor cool all the way down to room temp then again heat up the oil to 200 degrees F and run the motor at 1200 rpm for another 2 hours. Then take to to the track pre heat the motor to about 180 F and run 2 tanks on the starter box, let it cool down and then run 2 - 3 more tanks on the track very rich never allow to go into 2nd gear. After this then we start to learn it out little by little.
4 hours don't do anything, and raising the RPMs doesn't do anything either. You have to think that when you heat it up it expands, making it easier on the rod and making the piston/sleeve fit slightly looser(the piston expands less than the sleeve) I do mine for 10-12 hours, 1st hour at 210, then I lower the temp to 190 and let it run overnight. Then I do one bottle rich(lots of smoke and very little power), let it cool. I start the next bottle where I left off with the previous one, but I lean it a bit each tank, by the the last tank the motor is almost on race tune, but 2 -3 hours rich, and letting it shift. I do one more bottle at that setting. Then its race ready, I haven't had any motors get scratched or heat spotted, as long as that procedure was followed.-