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Old 21 April 2017, 07:18   #11
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Country: Australia
Town: Dalmeny
Make: zodiac
Length: 5m +
Engine: outboard
Join Date: May 2015
Posts: 627
Quote:
Originally Posted by northstar 4.80 View Post
i have a 4.80 rib at similar weight and 2015 etec 60hp
my current prop is 13.25x17 alu
with one freediver + 45 lt fuel 50 lt igloo coller my top speed is 38 mph on smooth sea engine rpm is 5750 on rough sea 36 mph
with 2-3 freediver top speed at wot is 35 mph and
i have a avarage consuption of 0.5 lt / Nm
on plane rpm is 3400 rpm
dont hesitate to switch to 13.25 x17 pitch over all fuel consuption on 20-25 mph is important for maximum milage
That's pretty impressive, you'd have to be very happy with that
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Old 21 April 2017, 07:42   #12
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Country: Other
Town: istanbul
Make: northstar
Length: 4m +
Engine: evinrude etec 60
Join Date: Mar 2017
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Quote:
Originally Posted by jonp View Post
That's pretty impressive, you'd have to be very happy with that
these results are while engine av plate is 3cm belove the keel

when the engine moved two hole up and av plate alignment match to the keel, with an 13.25X19 alu prop wot speed jumps to 41 mph but all over performance gone. fuel consuption is 0.6 lt / Nm

i am happy with 13.25X17 pitch, i usually ride at rough sea and happy with overall performance and consumption.

point to be mentioned; evinrude tachos are not so accurate. some of them read low some high, has a oscillation of 80-120 rpm due to the diagnostic tool readings
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Old 21 April 2017, 07:56   #13
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Country: Other
Town: istanbul
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Length: 4m +
Engine: evinrude etec 60
Join Date: Mar 2017
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Quote:
Originally Posted by two stroke mick View Post
Before​ Messi g with props you must ensure the engine is at the correct height. The etec likes to run high. I.e.one hole up. If raising the engine be sure to support the engine saddles. Look up a thread "the curse of kerny" for reasons to support saddles.


Tsm
hi tsm

i'm already interested about the broken saddle issue on etec 60hp

as an outboard engine service professional (with 14 years experince) i never advice people to raise their outboard without an outboard jack plate.

it is an must to make high performance rigging, and top speed is the aim item.
outboard jack plate handles the stress on saddle.
in the past i saw a few same broken saddle issues on mercury optimax series.

the strokes are vibrating animals
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