Why an increase in engine horsepower will hurt your ‘holeshot’, acceleration and midrange cruising.

[Bondo]

I'm definitely interested what chris finds with a degree wheel. I just can't help but wonder if mercruiser would sacrifice some usable torque just to be able to advertise a bigger horsepower number. Would they even mess with optimising a cam when it is cheaper and easier to use something off the shelf? HP sells, torque just confuses people.

Ayuh,...... You might see this in Mercury Racing motors, but not in our standard production motors,.....

 

[Scott Danforth]

I've spent HOURS looking for Mercruiser cam specs. Haven't found anything.

202 duration intake
214 duration exhaust
395" lift intake
404" lift exhaust
112 lobe separation.

from this post https://forums.iboats.com/threads/v...ce-upgrades-for-an-aq271c.489465/post-3456952