Seven Marine ends production
11-06-2020, 07:20 AM
#1
Senior Member
Thread Starter
Join Date: Mar 2003
Location: United States
Posts: 10,647
Likes: 0
Received 2,533 Likes
on
1,139 Posts
Likes:
Popular Reply
11-06-2020, 03:08 PM
Senior Member
Originally Posted by alacrity
instead of having tanks full of gas, can't they just fill that area with dozens of lithium batteries like cars? serious question.
100 gallons of gas weighs ~ 615 lbs or 280 KG
Gas has 12800 W-H/KG of energy
Electric is about 2x as efficient as gas ICE so to be equivalent you need about 1/2 the energy of 100 gallons of gas
You need at about the energy equivalent of 50 gallons of gas
50 * 12,800 = 640,000 W-H
Tesla's best newest batteries are about 175 W-H/KG
You would need 640,000/175 = 3657
You need 3,657 KW of batteries or about 8,000 lbs of batteries and that's for a boat that would have a 100 gallon tank.
I think the battery tech need to develop a bit more but eventually it will probably be there... I bet not in this decade.
Likes:
11-06-2020, 07:37 AM
#5
Senior Member
Should have made Direct Injection two strokes instead 
Likes:
Likes:
11-06-2020, 08:09 AM
#7
Who is next on the chopping block?
Evinrude - Gone
7 Marine - Gone
Honda - Stagnant
Suzuki - Working that price point card
Yamaha - Strong player
Mercury - Market leader and steadily leaving the competition behind
Food for thought, what is it that spooked 7 Marine into believing that their 627HP engine was no longer going to be competitive in the market?
Evinrude - Gone
7 Marine - Gone
Honda - Stagnant
Suzuki - Working that price point card
Yamaha - Strong player
Mercury - Market leader and steadily leaving the competition behind
Food for thought, what is it that spooked 7 Marine into believing that their 627HP engine was no longer going to be competitive in the market?
Likes:
11-06-2020, 08:11 AM
#8
Admirals Club 
Originally Posted by Diesel Dawg
Who is next on the chopping block?
Evinrude - Gone
7 Marine - Gone
Honda - Stagnant
Suzuki - Working that price point card
Yamaha - Strong player
Mercury - Market leader and steadily leaving the competition behind
Food for thought, what is it that spooked 7 Marine into understanding that their engine was no longer going to be necessary in the market?
Evinrude - Gone
7 Marine - Gone
Honda - Stagnant
Suzuki - Working that price point card
Yamaha - Strong player
Mercury - Market leader and steadily leaving the competition behind
Food for thought, what is it that spooked 7 Marine into understanding that their engine was no longer going to be necessary in the market?
Likes:
11-06-2020, 08:13 AM
#9
Senior Member
Originally Posted by Diesel Dawg
Who is next on the chopping block?
Evinrude - Gone
7 Marine - Gone
Honda - Stagnant
Suzuki - Working that price point card
Yamaha - Strong player
Mercury - Market leader and steadily leaving the competition behind
Food for thought, what is it that spooked 7 Marine into understanding that their engine was no longer going to be necessary in the market?
Evinrude - Gone
7 Marine - Gone
Honda - Stagnant
Suzuki - Working that price point card
Yamaha - Strong player
Mercury - Market leader and steadily leaving the competition behind
Food for thought, what is it that spooked 7 Marine into understanding that their engine was no longer going to be necessary in the market?
11-06-2020, 08:14 AM
#10
Senior Member
Originally Posted by Paulswagelock
Wow. Purchased in 2017. Just announced they are building them at a Volvo facility 5 days ago. What a write off.
11-06-2020, 08:17 AM
#11
Senior Member
I've heard rumours in the trade here (UK) that Honda will be pulling out of the outboard market too - which doesn't surprise me - such an innovative company on the whole that makes all sorts of products, yet with their outboards they've never really got into any great development of the product - they've been quite happy with the 'stick one of our car engines on a leg' route - I guess with see the demise of the IC engine (at least as far as new vehicles are concerned) they don't see where they could go with outboards unless they went to the expense of developing engines especially.
11-06-2020, 08:17 AM
#12
Senior Member
I think Seven and then followed by Volvo missed the market for that engine. IMO the primary market for Seven's engine was with LARGE outboard manufacturers, and I don't believe any boat manufacturer installed them OEM at the factory.
Likes:
11-06-2020, 08:18 AM
#13
Senior Member
Creative way to close a company.
Batteries are the future so we are going to keep making other gas engines, but not Seven brands.
Batteries are the future so we are going to keep making other gas engines, but not Seven brands.
Likes:
11-06-2020, 08:19 AM
#14
Senior Member
Will be very interesting to see if some other entity tries to gobble up the brand, assets, etc and hit the ground running instead of it getting "parted out."
They mention there is nothing wrong with the business or sales outlook, but that outboards don't meet their long term zero emissions strategy or something like that.
They mention there is nothing wrong with the business or sales outlook, but that outboards don't meet their long term zero emissions strategy or something like that.
Likes:
11-06-2020, 08:48 AM
#16
Senior Member
Could they have thought these engines were going to be competition for their outdrives and bought and killed the company to eliminate that possibility?
Likes:
THT sponsor
Likes:
11-06-2020, 09:15 AM
#19
Senior Member
Originally Posted by km1125
Could they have thought these engines were going to be competition for their outdrives and bought and killed the company to eliminate that possibility?
Likes:
11-06-2020, 09:20 AM
#20
Senior Member
Bizarre that their stated reasoning was an effort to go zero emissions, and some sort of electric or hybrid was the way of the future. Well, that goal is admirable, and that new tech is evolving, but it is NOWHERE near ready to propel boats in a practical manner, considering range/weight/cost. Not ready yet.
Something strange here indeed. Buy a niche product line three years ago and then kill it? The climate change/poltical environment right now is not much different than it was three years ago.
I don't think 7 was really a threat to their IO line. Very different boats. And plus, they own both!! That makes no sense...
Head scratcher...
Something strange here indeed. Buy a niche product line three years ago and then kill it? The climate change/poltical environment right now is not much different than it was three years ago.
I don't think 7 was really a threat to their IO line. Very different boats. And plus, they own both!! That makes no sense...
Head scratcher...
Likes:
