Originally Posted by codprawn
What exactly are they? There seems to be one type which is a hydrodynamic fairing for the lower leg - the other just seems to be a pipe and scoop - how are they fitted and where is the scoop mounted?
Will prob need one for my jackplate.
Also are water pressure gauges normally fitted or are they special order items???
Jackplates are expensive and usually not needed on leisure boats - firstly do REALLY need one? They are one more thing that can go wrong, the least of which is blowing your engine up!
A transom pickup is easier but you'll have to deal with a big pipe going into the cowling and if you dry the boat out and get mud in it there will be trouble. A low water gearbox pickup gets its water from the point of the gearbox and needs to be fitted by an experienced RACE marine engineer.
As Eksrae says guages are an extra guage although Optimaxes may have a display available but I would still fit a seperate one.
Bottom line - is all the above worth it for 3-4 MPH top end and potentially a lot of hassle and a lot of expense?