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Old 06-14-2007, 07:06 PM
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Originally Posted by culver View Post
For their next trick they can explain why this V6 has 12

(PS, the 2.5L Ford Duratec V6 has 12 for the same reason) sorry the engine is a bit dirty in this picture
Variable length intake manifolds.

There is a long and a short pipe for each individual cylinder, and the intake switches between the two depending on revs - long pipe for low revs and short pipe for higher revs (I think!).
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