Tweet
When going rounds with the NHRA, we didn't have to time for "break in". When I changed a motor, I would start it up in the pit to circultate the oil and put a little temp in it. Then tow to the starting line. rev it to 10,500 on the cut, pull the trigger, 300 worth of nitrous for a tenth, and 55 of boost psi to 12,500 rpm. NHRA style break in was good for 7.20's at 195.
On the dirt track car's The ol' claimer motor break in goes like this... I Let it warm up, circulate the heat, and fluids, after a little while I will grab the throttle and pin it to the cut at what ever rpm the motor is good for, 7,500, 8,500, or 9,500. Then I know it's good to go. If it will not pass this test, It was never a winner in the first place.
anything for the street, a couple of heat cycles and a trip around the block, then change the oil and you are good to go give it hell.
On the dirt track car's The ol' claimer motor break in goes like this... I Let it warm up, circulate the heat, and fluids, after a little while I will grab the throttle and pin it to the cut at what ever rpm the motor is good for, 7,500, 8,500, or 9,500. Then I know it's good to go. If it will not pass this test, It was never a winner in the first place.
anything for the street, a couple of heat cycles and a trip around the block, then change the oil and you are good to go give it hell.
4 door
Comment