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Old 04-23-2012, 02:33 PM   #52
Russell James


 
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Drives: '15 SS 1LE, '69 Z28 drag car
Join Date: Dec 2009
Location: Mich
Posts: 4,483
Quote:
Originally Posted by tooslow View Post

You do know that all the LSA engines are broken in at the factory before they are ever placed in the chassis, right? Little chance of any engine bearing failure due to not following the recommended break-in procedure. And last I checked, Scott is not a mechanical engineer.
The engines are not broken in at the factory.

They have minimal run time from a couple of tests, then some time moving the cars around. The actual break in occurs over the first couple thousand miles of driving.

As proven by the gain in hp after a couple thousand miles. If they were already broken in, they would have max power at delivery. Not the case, when a car is new many things are quite tight... such as piston to bore clearance. After some miles the clearances will be better and also better ring sealing = more power.
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