Quote:
Originally Posted by stangvert
Have to be a devils advocate here but after the race they tore the engine apart.
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Actually, that's the not the case at all.
Jumping to conclusions, making false assumptions and trying to make a distinction between the break in of racing engines and street engines is false logic and totally laughable on so many levels! An engine is an engine is an engine.
They are built differently for specific purposes but they are ALL broke in the same way.
ALL OF THEM!
Nextel cup engines are broke in with LOAD and HARD
Drag race engines are broke in with LOAD and HARD.
Street engines are broke in with LOAD and HARD.
Trying to justify ones position on break in by saying a Drag race engine makes only 200-400 runs and this situation has some bearing on the break in method is wrong and totally absurd. The reason the life span is so short for a drag engine is due to piston speed and kinetic energy over time. Something I really cant go into on this forum.
A Nextel cup engine is designed to go 1000 race miles. Its piston speeds are designed to be in a certain range. lower than a drag engine.
A street engine is designed to go 100000 miles and its piston speeds are design to stay in a specific range. Much lower than either nextel cup or Drag race engines.
In my induction system design class I go in depth into the piston speed/ kinetic energy scenario and how it relates to potential volumetric efficiency and CFM power potential. The engines intended purpose and or the energy out put and kinetic energy of the internal components has NO bearing what so ever on the method of break in. Break in is very simple yet people who have no engineering expertise or engine building experience seem to want to over complicate it into absurdity.
Just load the engine. Its really that simple.