Engine buildup for MPG? - Page 2 - Fuelly Forums

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Old 09-19-2008, 10:14 PM   #11
DRW
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Join Date: Oct 2006
Posts: 615
Country: United States
Add VTEC to the list, or some sort of variable cam timing applied to the intake cam. To move the power from low rpm to hi, or vice versa, changing the intake cam timing has a larger effect than the exhaust cam.

Here's a great example of a long stroke engine http://people.bath.ac.uk/ccsshb/12cyl/ They wanted to make that engine as efficient as possible, like it says,"The cylinder bore is just under 38" and the stroke is just over 98". " Nearly 1:3 bore:stroke ratio.
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