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Old 10-26-2010, 10:14 PM   #10 (permalink)
Left Lane Ecodriver
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Join Date: Aug 2008
Location: Buffalo, NY, USA
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Prius C - '12 Toyota Prius C
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Variable displacement schemes are often talked about on EcoModder, but I don't think we've seen a DIY success yet. Probably because of the enormous engineering effort required to extract fairly small gains.

Using intake parts from an engine that leaves the factory with variable displacement is a great idea. A better one, that involves less fabrication and doesn't require a custom controller, is to transplant a variable displacement engine + ECU into your target chassis.

The biggest problem with MegaSquirt is it's not OBD-II compliant. In my state, I would be unable to install it in a road-going vehicle '96 or newer.
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