Ran my Cruisers today with my 1960 Evinrude 40. Ran total of 35.2 miles on GPS @ about 20 mph av. Top was 26.6 with 12 pitch. Ran 27.1 miles on first tank. My 1960 Evinrude 75 would have gone only 18 to 21 miles on the same tank and speed. Top end for the 75 is about 39 GPS. A lot faster but a lot more gas when cruising at 20 mph.
Was 76 and sun today in Houston.
40 vs 75 Evinrude for Cruisers Inc. 16'
Moderators: a j r, TDockside, Miles, Moderators
V75 Fuel Economy
John... Here is the claim from my 1961 Johnson catalog.
"Save up to 60% on fuel!... It's true - you can save as much as 60% with the V75 because this motor can plane many boats at only half speed."
It's funny how reallity doesn't always quite match the claims...
"Save up to 60% on fuel!... It's true - you can save as much as 60% with the V75 because this motor can plane many boats at only half speed."
It's funny how reallity doesn't always quite match the claims...
John
75 seems to use a tank every every 45 min reguardless of speed. Idling gets about 12 miles a tank at 15 to 18 gets 20 miles to tank. Somewere I've read it will run 45 min wide open on a 6 gal tank. Now at 40 mph it might come close to the 40. But then I think the 40 was able to run wot for 1hour and 15 min on a 6 gal tank. With top speed of 28, that would do 35 miles per tank. Two strokes do better at higher rpm than other engines. I need to hook up a flow scan and do some research. With price of gas it would be good to know.
Johnson's claim could be true if a 40 was under powering a heavy boat and was not quite able to plane, then the 75 could have edge.
75 seems to use a tank every every 45 min reguardless of speed. Idling gets about 12 miles a tank at 15 to 18 gets 20 miles to tank. Somewere I've read it will run 45 min wide open on a 6 gal tank. Now at 40 mph it might come close to the 40. But then I think the 40 was able to run wot for 1hour and 15 min on a 6 gal tank. With top speed of 28, that would do 35 miles per tank. Two strokes do better at higher rpm than other engines. I need to hook up a flow scan and do some research. With price of gas it would be good to know.
Johnson's claim could be true if a 40 was under powering a heavy boat and was not quite able to plane, then the 75 could have edge.
Another Claim
Here is some more from the catalog..
"Some outboard motors only get their top horsepower by wringing every possible ounce of energy out of the unit... mainly by operating the engine at almost destructive revolutions per minute.
So, the V-75 range is between 4000 and 5000 rpm, much less than some other outboards. But, because of this tremendous cubic inch capacity relative to horsepower, the "V" gets magnificent acceleration, and reaches its horsepower immediately, yet with no great strain, no unusual wear and tear on the motor."
There's more but those were some interesting points..
"Some outboard motors only get their top horsepower by wringing every possible ounce of energy out of the unit... mainly by operating the engine at almost destructive revolutions per minute.
So, the V-75 range is between 4000 and 5000 rpm, much less than some other outboards. But, because of this tremendous cubic inch capacity relative to horsepower, the "V" gets magnificent acceleration, and reaches its horsepower immediately, yet with no great strain, no unusual wear and tear on the motor."
There's more but those were some interesting points..