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Old 08-15-2014, 05:18 PM   #10 (permalink)
BikerModder
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Join Date: Jul 2011
Location: Virginia
Posts: 45

Deedee - '09 Smart ForTwo Pure 999cc
90 day: 47.39 mpg (US)
Thanks: 4
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Quote:
Originally Posted by t vago View Post
... did you even READ what I wrote? "...this mod increases effective combustion chamber volume by removing a section of spark plug thread, thereby lowering efficiency by lowering the compression ratio..."

BTW, premium fuels do not "burn slower" as such - they are merely more resistant to spontaneous combustion due to elevated pressures/temperatures.
Well here you have it. I am getting remarkable results while driving my car through the Blue Ridge Mountains I have no pinging. It is much cheaper and I won't change my story... Though don't know why... I did. I remember that I ought to at least remember that I did.

Last edited by BikerModder; 08-17-2014 at 02:41 AM.. Reason: typo edit
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