General engine tech -- Drag Racing to Circle Track
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Is there really a difference in hp between iron and aluminum heads? I have heard that you need to run 1 point higher in compression to make up for the loss of heat. Has anyone actual tested this?
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- Location: Finland / Hyvinkaa
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The combustion chamber shape is the same between the two heads, but the aluminum Motown 220 Lite offers a CNC-machined chamber as an added bonus.
Sounds like another "fair" magazine comparison....