I was reading the post on the Hard Motor Break-In and i was wondering if anyone had did it and what the results were.. also i would like to know what people think about this concept

 

people have done it, it works.
the soft break in works as well from my experience.
driven to 3.5k till 1000 miles. perfect compression.

 

http://www.importbuilders.com/breakin.html

 

break it in like your engine builder tells you

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDogg &raquo;</TD></TR><TR><TD CLASS="quote">break it in like your engine builder tells you</TD></TR></TABLE>

exactly

 

yup

 

When i build them tight I tell the customer to break it in slowly, to make sure everything seats properly and this will increase the longevity of the engine.

If I know someone is going to just go hammer on it right out the gate, I will build it with a little more clearance.

Best advice is do WHAT THE BUILDER SAYS. Be honest with the builder, if you are going to race the day after you get the engine, let the builder know and he can adjust accordingly.

 

Thanks good info.