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ContinuousWave: Whaler Performance
1972 Montauk w/ Evin Ficht 75 top speed
|Author||Topic: 1972 Montauk w/ Evin Ficht 75 top speed|
posted 12-02-2002 07:47 PM ET (US)
Just an FYI all, with the 75 horse, 13.25x17" prop (Michigan Rapture Stainless) it runs 37.8mph on the handheld GPS. Top RPM is 4900 and the motor rating for WOT is 4800-5200 where max hp is at 5000. The computer is still running it in breakin mode which is double oil, after 10 hours it will go to normal oil and maybe it will pick up another 100 rpm then (would be nice). Just FYI all...
BTW, the torque is unreal. It will about break your neck from idle and you don't even have to throttle to wide open. So far I am very pleased, the motor runs smooth as silk and is quite enough to hear the water rush underneath the hull at WOT.
posted 12-03-2002 04:05 PM ET (US)
How did you decide on the Rapture. I am in the middle of testing quite a few select SS props and most likely will end up with the rapture myself. I am running a 115 Merc on a Montauk and I believe I will end up using a 21" pitch. That Ficht sounds really nice. I heard that the V-4 fichts are just awesome.
posted 12-03-2002 07:19 PM ET (US)
My 72 is running a 13.25 X 21" Aluminum prop with a slight cup in it. The 86 110 Johnson is pushing her at 48MPH on the GPS turing 5100 RPM. I figure I might crack 50 if I ever break down and but a stainless prop.
The boat really picks up out of the water almost to the point of slight chine walk.
I used to run a 17' Hydrostream with a 200 V-6 Merc and you talk about chine walk? That boat was dangerous. Never did get the hook completely out of the bottom.....
posted 12-03-2002 11:19 PM ET (US)
Decided on the Rapture by default really. The dealer had it on the shelf and made me a pretty good deal (it was the size/pitch I was wanting to start with anyway), don't know if I like it yet but it looks real nice!! Performance seems good but I kind of think as much torque and responsiveness the boat has that I should be able to turn at least the full 5000rpm. Will run it for a while and see before I start changing things.
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