Scarab 29 raise engines?
#12
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it all depends on where your prop shaft is now. If it is 7 inches deep then going up to 5 is not going to make much of a change in planing. It will make a huge change in handling and you will not need to trim as much for top speed. IF you are at 5 inches and go to 3 inches it WILL make a huge change in getting on plane and you will probably have to add a blade to your prop. Or like in my case I increased the negative trim to aid in planing. ( it made a huge difference )
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After doing a bunch of forum lurking and reading up, I think I'm going to raise the engines up a total of 2 inches. From others ive found that have done the same I dont think i will have too much negative effect on the boat. The shop replacing the transum is going to make new taller stringers as well for the engine lift.
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While you are doing glass work, depending on your intended set-up, you may want to consider getting rid of the "wedges" in the bottom.
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i would want an exact drive height now from the shop who is doing the glass work.
that way you could post on this thread, there at x inches now, how far should i go when the time comes?
i'd want centerlines as well
that way you could post on this thread, there at x inches now, how far should i go when the time comes?
i'd want centerlines as well
Last edited by outonsafari; 12-05-2016 at 05:05 PM.
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Well after a repower from tired 350s to 383s with decent cams, vortec scorpion mpi, new everything, straight thru exhaust, drive height -2 with engine raise and running bravo 1 24 four blade we gained a net of 4 mph. Went from 64ish to 69 mph after changes. Im learning the mefi burn software and was able to get full throttle end of season with safe o2 readings at a max RPM of 4850 to 4900. Ive been racking my brain holding back on posting results....but at this point im asking for help.. ideas or input all welcome.
Last edited by Scarab29Aj; 12-30-2017 at 02:20 AM.