Thread: Advice on outboards

Have played this exact game on a 4.7 Surtees Centre console. Older model, but same dimensions and weight pretty much as the 4.85.
Mine has a yammy 60 4 stroke. A permatrim fixed it right up.

My observations and findings:
The permatrim allowed for quicker holeshot, slower plaining, and less cavitation.
A bit of work was required to get the correct pitch prop to tune the boats performance to meet my needs.
A 4 stroke engine is heavier for the given HP than the 2 stroke equivalent. This is a real problem for the small surtees CC's, as there is no cabin giving any weight up the front.
Moving the battery(s) into the Centre Console helps solve a bit of the weight aft problem.

If I were to start over and get a new build, I'd probably be looking at a modern 70hp 2 stroke. The engine costs less, weighs less, produces the same HP as a 70 4 stroke, costs less to service, and uses almost the same amount of fuel as the modern 4 stroke engines. Having to add 2 stroke oil is only a very minor inconvenience.