TwinTurbo.NET: Nissan 300ZX forum - 4,000+ miles of hard break-in here...
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Subject 4,000+ miles of hard break-in here...
     
Posted by samsung-Z [Houston] on June 03, 2012 at 11:46 PM
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In Reply To Hard break in...please explain posted by Coldfusown on June 03, 2012 at 07:43 PM
     
Message Rock solid high compression #'s equally on each cylinder, not even a 1 or 2psi variance anywhere. Leak down on the heads are also picture perfect..

Burns no oil, and peppier than my previous soft break in motor... I wouldn't hesitate to re-perform this method of motor break in..

Some will argue the pro's and con's blah blah.. However if you do a hard break-in , do so smartly.. As in, get on her Yes, however progressively harder and harder.. As the mileage accumulated on my motor from 0 to right arund the 350-500 mile mark. I could noticeable "feel" the motor progressively seating better and better, resulting in better throttle response, and smoother / quiter idle IMHO, and I even have a full-race capable motor, that on paper should be "noiser and clattering" due to how I designed the specs f my motor.. But nope, @ idle she sounds as smooth and clatter free as any OEM low mileage TT that has been well maintained.

Moral of the story is: Give it to her HARD :-)

~Mario D.

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