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Author Topic:   E-TEC 40 on 13-Footer

boatlover15 posted 02-02-2006 09:11 PM ET (US)
Has anyone tried [powering a 13-foot Boston Whaler boat with a 40-HP E-TEC motor]? I imagine it must be pretty easy to get a skier up with all that torque in that E-TEC.
I wonder if anyone has pictures of one of these setups at rest or in action so we can see the effect of the weight with that big beast hanging on the transom.
jimh posted 02-03-2006 01:39 AM ET (US)
The effect of the engine weight does not depend on the brand or type of motor. You could observe the trim of a 13-foot Boston Whaler with any motor whose weight was comparable to the 40-HP E-TEC and get a good sense for how the boat will react to the engine weight.
GAN posted 02-03-2006 08:14 PM ET (US)
I had a 40 e-tec installed at the end of the season last fall on a 1976 15 sport. I only had it out once and then put it away for the season. It gets up and goes real quick. I dont think you would have any problem getting a skier up.
gary
MBAC posted 01-15-2008 10:18 PM ET (US)
Old thread, but an answer to the question.
Got one on my 74 13'.
Make sure to really consider what you want the motor I put on has no T/T and is very heavy!
Here are some details of its first good run today. I had a 14x19 prop on it and it flew, but did not reach 5k wot.
Finally, today I have a prop that is close... 14"x17" it ran today at 27.7kts GPS at 5,400 rpm. With me (275lbs and 12 gallons), I am going to get either a slightly smaller diameter or less pitch prop or both. I feel the hull is approaching its top speed, so why fight it. Therefore, I am looking for 28 kits at 5,800. I still have to do some math to get there.
I will end up putting a 12-gallon tank in the front. I put 12 gallons in the front in portable cans for the test. I took a shot of the engine out of the water and the prop does clear the water (with fuel onboard).
I also shot some photos of the waterline, before and after I moved the fuel. BIG difference in the way the boat sat in the water.
Great motor at speed, nice and quiet. Rough at idle though, but I read this is normal.
See the 13' album at trunkmonkey.shutterfly.com
Bret
MBAC
11', 13', 21' Revenge
Tom W Clark posted 01-15-2008 10:49 PM ET (US)
Bret,
I find it hard to believe you can fit a 14" diameter propeller on an E-TEC 40. As far as I know, the largest prop that will fit has a 13" diameter.
BRP's 17" pitch props for the 40 HO E-TEC are 11-3/4" in diameter. The 19" pitch aluminum and SSTs are 11-1/4".
What props were you suing today?!
MBAC posted 01-16-2008 01:46 PM ET (US)
Well for the doubter in the crowd I put a picture of the 14X19 prop I had on the boat. It did fit and run, but not enough RPM. Thus, the 14X17 was used as stated above. Thank you for the suggestion on the other post. = http://continuouswave.com/ubb/Forum4/HTML/004964.html
Pictures at:
trunkmonkey.shutterfly.com
-Bret
MBAC
11’,13’, 21’ Revenge
Tom W Clark posted 01-16-2008 02:00 PM ET (US)
WOW! BPR aluminum propeller #176215 is indeed a 14" x 19" prop designed for the three cylinder and V- 60 to 115 HP outboards.
Does Evinrude really put V-4 gearcases on the little two cylinder 40 HP E-TECs? That would explain a lot of the added weight.
2manyboats posted 01-16-2008 05:52 PM ET (US)
Yes the E-TEC 40, 50 , and 60 are basically the same. It is my understanding that the 60 was going to be the 70 , but was never produced as a 70 except in some brochures.
Tohsgib posted 01-17-2008 01:07 PM ET (US)
I would seriously try the 13.25x17 SST or equiv. A 14" diameter n a 13 is not "right" in my opinion.
MBAC posted 02-23-2008 02:12 AM ET (US)
Yah, I did not know they used the bigger case for this engine, and yes it is heavy. I guess time will tell if the weight was worth it.
I mounted a 12 gallon tank forward to compensate and ended up using the Stiletto Advantage 1 (21317)
13.25" x 17" x 3"
A NOTE TO ALL WHO ORDER PROPS ONLINE FOR THE E-TEC 40 as I had to order the prop as if it were a 70hp 'rude.
I have not run it yet, but will report the results after I get some bottom paint on and finish putting the rails on.
After the 14 x 17 non performance prop I had on I think this one will get me to my target rpm of 5,600-5,700 rpm.
photos at
trunkmonkey.shutterfly.com
-bret
MBAC
11',13',21'
BQUICK posted 02-26-2008 12:58 PM ET (US)
Man, 14 is alot of diameter for a 40 hp!
L H G posted 02-26-2008 05:31 PM ET (US)
Sounds like the 40-60 E-tecs all have a mandatory "Big Foot" (75-115HP) gearcase. Are these engines designed solely for pontoon boats, like the Merc and Yam bigfoots are? Sounds like a little more Evinrude R & D is order here for a properly sized gearcase for this HP range, similar to what Merc and Yamaha use on the regular 4-stroke 40-60 models (you know, the ones made in Merc's China plant).
fishgutz posted 02-26-2008 06:00 PM ET (US)
L H G,
"Are these engines designed solely for pontoon boats, like the Merc and Yam bigfoots are?"
NO, they use the Bigfoot on the 150 Sport and Montauk.
It is akin to putting real "all terrain tires" on your 4 wheel drive pickup or SUV.
With that gearing you can turn a bigger prop. Less slip, better holeshot. Or get better performance on a heavier boat.
L H G posted 02-26-2008 07:05 PM ET (US)
I understand Whaler uses the bigfoot on the 150 models, something I have never understood, but I assume BW knows what they are doing.
Aside for this strange 150 situation, the 40-60HP engines are almost universally used with the "regular" gearcases, where they deliver the best speed and overall performance, such as on a BW classic 13 or 15. You would not want a "bigfoot" on one of those lightweight models, which, I guess, pretty much eliminates an Etec 40-60 on those boats for those that know what they are doing, and buying. I think it's also why owners are complaining about the slow performance of the Etec 40, 50 and 60's, relative to other brands. Too much gearcase and prop drag.
Tohsgib posted 02-27-2008 10:02 AM ET (US)
No the 50-60hp 3cyl OMC all had the 4" gearcase. So why would a 50-60hp e-tec not run one? The downfall for me on my 70 merc was the tiny gearcase on my 15 CC. Spinning a 11" prop was not the answer.
fishgutz posted 02-27-2008 11:01 AM ET (US)
L H G:
I just explained it. Just like putting bigger tires on your 4 wheel drive pick up. You better change the gear ratio or you will lug your engine and/or transmission. If you want better performance on a heavier boat (like most new boats these days especially Whaler), you're going to have to gear down and spin a bigger (diameter) steeper (pitch) prop. A perfect example is my Dauntless 14. I have a 75 Merc 2 stroke with the bigger gear case 2.33/1 ratio. If i would repower with a 60 hp 4 stroke, I'd have to use the Bigfoot model. Otherwise I'd probably never get out of the hole. Or it would take forever. Plus any deviation in course would slow the boat down much more without the lower gear ratio and bigger prop. Same adverse affects in a chop.
Edgewater boats uses the Yamaha High Thrust motors on their 145. Its 14'5" long and weighs 1000 pounds.
Everything is a compromise. The engine manufacturers do what they think is best for ALL AROUND performance. Some motors will always push different boats different ways. If you want to get out of the hole faster, gear down and lose some top end. If you want to go fast gear up and lose the hole shot. If you want to tow a fat waterskier like me you better gear down and lose the top end. There are so many factors to consider. For average use, almost any 40 HP motor with any gear ratio will work just fine. If you have special needs you will have to get more picky.
Suzuki uses a higher gear ratio on their 40 HP. Honda is somewhere in between. The really nice thing is that Mercury and Yamaha give you a choice. Yippee

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Author	Topic: E-TEC 40 on 13-Footer
boatlover15	posted 02-02-2006 09:11 PM ET (US) Has anyone tried [powering a 13-foot Boston Whaler boat with a 40-HP E-TEC motor]? I imagine it must be pretty easy to get a skier up with all that torque in that E-TEC. I wonder if anyone has pictures of one of these setups at rest or in action so we can see the effect of the weight with that big beast hanging on the transom.
jimh	posted 02-03-2006 01:39 AM ET (US) The effect of the engine weight does not depend on the brand or type of motor. You could observe the trim of a 13-foot Boston Whaler with any motor whose weight was comparable to the 40-HP E-TEC and get a good sense for how the boat will react to the engine weight.
GAN	posted 02-03-2006 08:14 PM ET (US) I had a 40 e-tec installed at the end of the season last fall on a 1976 15 sport. I only had it out once and then put it away for the season. It gets up and goes real quick. I dont think you would have any problem getting a skier up. gary
MBAC	posted 01-15-2008 10:18 PM ET (US) Old thread, but an answer to the question. Got one on my 74 13'. Make sure to really consider what you want the motor I put on has no T/T and is very heavy! Here are some details of its first good run today. I had a 14x19 prop on it and it flew, but did not reach 5k wot. Finally, today I have a prop that is close... 14"x17" it ran today at 27.7kts GPS at 5,400 rpm. With me (275lbs and 12 gallons), I am going to get either a slightly smaller diameter or less pitch prop or both. I feel the hull is approaching its top speed, so why fight it. Therefore, I am looking for 28 kits at 5,800. I still have to do some math to get there. I will end up putting a 12-gallon tank in the front. I put 12 gallons in the front in portable cans for the test. I took a shot of the engine out of the water and the prop does clear the water (with fuel onboard). I also shot some photos of the waterline, before and after I moved the fuel. BIG difference in the way the boat sat in the water. Great motor at speed, nice and quiet. Rough at idle though, but I read this is normal. See the 13' album at trunkmonkey.shutterfly.com Bret MBAC 11', 13', 21' Revenge
Tom W Clark	posted 01-15-2008 10:49 PM ET (US) Bret, I find it hard to believe you can fit a 14" diameter propeller on an E-TEC 40. As far as I know, the largest prop that will fit has a 13" diameter. BRP's 17" pitch props for the 40 HO E-TEC are 11-3/4" in diameter. The 19" pitch aluminum and SSTs are 11-1/4". What props were you suing today?!
MBAC	posted 01-16-2008 01:46 PM ET (US) Well for the doubter in the crowd I put a picture of the 14X19 prop I had on the boat. It did fit and run, but not enough RPM. Thus, the 14X17 was used as stated above. Thank you for the suggestion on the other post. = http://continuouswave.com/ubb/Forum4/HTML/004964.html Pictures at: trunkmonkey.shutterfly.com -Bret MBAC 11’,13’, 21’ Revenge
Tom W Clark	posted 01-16-2008 02:00 PM ET (US) WOW! BPR aluminum propeller #176215 is indeed a 14" x 19" prop designed for the three cylinder and V- 60 to 115 HP outboards. Does Evinrude really put V-4 gearcases on the little two cylinder 40 HP E-TECs? That would explain a lot of the added weight.
2manyboats	posted 01-16-2008 05:52 PM ET (US) Yes the E-TEC 40, 50 , and 60 are basically the same. It is my understanding that the 60 was going to be the 70 , but was never produced as a 70 except in some brochures.
Tohsgib	posted 01-17-2008 01:07 PM ET (US) I would seriously try the 13.25x17 SST or equiv. A 14" diameter n a 13 is not "right" in my opinion.
MBAC	posted 02-23-2008 02:12 AM ET (US) Yah, I did not know they used the bigger case for this engine, and yes it is heavy. I guess time will tell if the weight was worth it. I mounted a 12 gallon tank forward to compensate and ended up using the Stiletto Advantage 1 (21317) 13.25" x 17" x 3" A NOTE TO ALL WHO ORDER PROPS ONLINE FOR THE E-TEC 40 as I had to order the prop as if it were a 70hp 'rude. I have not run it yet, but will report the results after I get some bottom paint on and finish putting the rails on. After the 14 x 17 non performance prop I had on I think this one will get me to my target rpm of 5,600-5,700 rpm. photos at trunkmonkey.shutterfly.com -bret MBAC 11',13',21'
BQUICK	posted 02-26-2008 12:58 PM ET (US) Man, 14 is alot of diameter for a 40 hp!
L H G	posted 02-26-2008 05:31 PM ET (US) Sounds like the 40-60 E-tecs all have a mandatory "Big Foot" (75-115HP) gearcase. Are these engines designed solely for pontoon boats, like the Merc and Yam bigfoots are? Sounds like a little more Evinrude R & D is order here for a properly sized gearcase for this HP range, similar to what Merc and Yamaha use on the regular 4-stroke 40-60 models (you know, the ones made in Merc's China plant).
fishgutz	posted 02-26-2008 06:00 PM ET (US) L H G, "Are these engines designed solely for pontoon boats, like the Merc and Yam bigfoots are?" NO, they use the Bigfoot on the 150 Sport and Montauk. It is akin to putting real "all terrain tires" on your 4 wheel drive pickup or SUV. With that gearing you can turn a bigger prop. Less slip, better holeshot. Or get better performance on a heavier boat.
L H G	posted 02-26-2008 07:05 PM ET (US) I understand Whaler uses the bigfoot on the 150 models, something I have never understood, but I assume BW knows what they are doing. Aside for this strange 150 situation, the 40-60HP engines are almost universally used with the "regular" gearcases, where they deliver the best speed and overall performance, such as on a BW classic 13 or 15. You would not want a "bigfoot" on one of those lightweight models, which, I guess, pretty much eliminates an Etec 40-60 on those boats for those that know what they are doing, and buying. I think it's also why owners are complaining about the slow performance of the Etec 40, 50 and 60's, relative to other brands. Too much gearcase and prop drag.
Tohsgib	posted 02-27-2008 10:02 AM ET (US) No the 50-60hp 3cyl OMC all had the 4" gearcase. So why would a 50-60hp e-tec not run one? The downfall for me on my 70 merc was the tiny gearcase on my 15 CC. Spinning a 11" prop was not the answer.
fishgutz	posted 02-27-2008 11:01 AM ET (US) L H G: I just explained it. Just like putting bigger tires on your 4 wheel drive pick up. You better change the gear ratio or you will lug your engine and/or transmission. If you want better performance on a heavier boat (like most new boats these days especially Whaler), you're going to have to gear down and spin a bigger (diameter) steeper (pitch) prop. A perfect example is my Dauntless 14. I have a 75 Merc 2 stroke with the bigger gear case 2.33/1 ratio. If i would repower with a 60 hp 4 stroke, I'd have to use the Bigfoot model. Otherwise I'd probably never get out of the hole. Or it would take forever. Plus any deviation in course would slow the boat down much more without the lower gear ratio and bigger prop. Same adverse affects in a chop. Edgewater boats uses the Yamaha High Thrust motors on their 145. Its 14'5" long and weighs 1000 pounds. Everything is a compromise. The engine manufacturers do what they think is best for ALL AROUND performance. Some motors will always push different boats different ways. If you want to get out of the hole faster, gear down and lose some top end. If you want to go fast gear up and lose the hole shot. If you want to tow a fat waterskier like me you better gear down and lose the top end. There are so many factors to consider. For average use, almost any 40 HP motor with any gear ratio will work just fine. If you have special needs you will have to get more picky. Suzuki uses a higher gear ratio on their 40 HP. Honda is somewhere in between. The really nice thing is that Mercury and Yamaha give you a choice. Yippee