Originally Posted by Nos4r2
Any suggestions on setting up a 5.4 Searider?
That's about what my 5.4 makes with the 85. I think there's some improvement to be had though. I'm hitting max rpm at that speed so I think another 2" on the prop pitch should help.
What diameter/pitch are you running and what holes is your engine on?
Mines 13x17" and I can drop a hole if I want.
I probably will drop a hole as I find I cavitate a bit when cresting a wave even with the stern firmly in the water.
Sorry for not getting back but the internet was down all day yesterday in the Scillies. (BT hold your hands up).
Mine is a rebuilt 91 2 stroke Yam and I had to run it in like a new engine.
Don't have a rev counter but I started with a 17 inch 3 blade ally prop (won't use stainless down here - too many rocks to hit and with SS that means a F$%^^D gearbox - someone I know did just that last week and they have been boating here for over 20 years
). Found that had too much torque on low speed handling (only took seconds to plane tho
- keeping that for skiing and tubing). Spoke to the Yam dealer over here and he recommended the 19 inch and it is a dream - it has done everything I've asked of it. Mind you because of the aforementioned rocks my normal travelling speed is circa 22 - 24 knts. Also fuel is VERY expensive down here
so I try to run a little more efficiently until I feel a need - the need for speed
Also my wife is 5 months preggers and so has now stopped coming on the boat so I can open up more now with just the guys on board.
Any enough rambling. Engine is set up sitting right on the transom as that is how the old engine came fitted and it seems to run sweet. Lots of power but you also feel in control hence why I am a dedicated SR fan and around here it is normal to get some big seas. We are in the Atlantic after all.
Hope my ramblings have helped. Now I need to go play as the tide is coming in.
Last thought my boat is moored Feb to Oct so I spray every couple of months with acid to slow the weed build up which with my old engine cost me at least 2 knts.
If you ever come down this way please let me know so I can arrange a couple of days off to have fun showing you where all the seals etc are and maybe a run to Bishop's Rock lighthouse.