Need to make my turtle run more like a Rabit

[LEASEGUY]

I have 1975 27 ft Silverton single screw vdrive set up with a 318cu v8 225 hp
with a 2:1 reduction. At 3000 rpm I belive im turning 1500 prop revolutions =like 12 mph.
max recomended rpm is 4200, boat goes real nice at 4000 but you need a flak jacket to walk aft at that speed.
question 1) is possible to build a high perf version capable of confortably runing at 4000-4500 with existing block and would the vee drive support it?

or go with a high torque motor and go one to one, no reduction.

i know i really need a boat with twins but not in the cards right now

[timgoz]

I don't have much experience with your type boat but something sounds very wrong! At 3000rpm you should be doing way better than 12mph. Could the prop be slipping?

Tim

[LEASEGUY]

maybe it just seems like 12, prop is solid no bushing. any other ideas?????

[mydauphin]

It could be anything from your descript. Once I had a boat with your problem and I hadn't notice a garbage bag stuck under my hull.

[timgoz]

Others with more experience will help more.

If you have or can borrow a GPS that would give you a good indication of your speed. Take into account any current when determining your speed.

Hope things work out for you.

Tim

[LEASEGUY]

Had this bost 9 years its the nature of the beast I want to change, end of season im rippin something out, willing to change engine trans and vee drive
I just need some direction re: replacement units that will give me some( can you call 25 mph speed?)



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