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It's always at 14 degrees no matter what. The only reason you stray from there is because you're worried about detonation blowing a con rod out the side of the block or cracking a ring land, capice?
This is why diesel engines don't rev high, they rev low because they don't have spark plugs to time combustion, it always happens after TDC, so the faster the piston moves the faster the piston moves away from the combustion process, until the combustion happens long after 14 degrees.
It's always at 14 degrees no matter what. The only reason you stray from there is because you're worried about detonation blowing a con rod out the side of the block or cracking a ring land, capice?
This is why diesel engines don't rev high, they rev low because they don't have spark plugs to time combustion, it always happens after TDC, so the faster the piston moves the faster the piston moves away from the combustion process, until the combustion happens long after 14 degrees.
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