sohc/dohc

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Discussion

dragstar

Original Poster:

3,924 posts

251 months

Monday 29th September 2003
quotequote all
a little confused:

does a sohc engine mean single cam controlling/changing the inlet and exhaust valve

and

a dohc engine mean two cams, each seperately control the inlet and exhaust valves


or

does a dohc simply mean that there are 4 valves above the piston? two intaking and two outaking (so 2 cams needed).

whichever is right, what the benefits of each?