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aeromomentum suzuki based engine

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don january

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Feb 10, 2015
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Midwest
momentum engine.jpg Has any person had any up close and on hand experience with this new engine? looks to be around $8900 so close to the Corvair engine in price but much easier to get part's I believe. aircraft engine.jpg
 

cheapracer

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6,219
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Australian
With colors like that it makes it more reliable.

But would be faster if red.




AM13(Upright)AM13(Low Profile)Rotax 912
Continental
O-200
Jabiru 2200
Jabiru 3300
Viking110
Horsepower
100@5800(2240prop)100@5800(2240prop)100@5800
(2387)
100@2750

85@3300
67@2750
120@3300
107@2750
110@5800
(2500prop)
Weight(lbs)
170170165
213
141
184
178
HP/lb
0.560.560.61
0.56
0.47(@2750)
0.58(@2750)
0.62
Displacement
1298cc1298cc1352cc
3290cc
2200cc
3300cc
1497cc
Bore X Stroke
74x75.5mm74x75.5mm84x61mm
103x99mm
97.5x74mm
97.5x74mm
73x89.4mm
Valveing
16V SOHC16V SOHC8V pushrod
8V pushrod
8V pushrod
12V pushrod
16V DOHC
Cooling
LiquidLiquidLiquid/AirAir
Air
Air
Liquid
Compression
10.1:110.1:110.5:17.0:1
8.0:1
8.0:1
10.4:1
Fuel Delivery
Sequential FISequential FIDual Carbs
Single Carb
Single Carb
Single Carb
MPI
Typical Price
$8,995$10,995$19,437
$20,000
$15,5000
$19,900
$12,995
 

Jon Ferguson

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Dec 15, 2011
Messages
827
Location
Harpers Ferry, WV
How did they build a liquid cooled engine that weighs just three pounds more than an air cooled V/W with less horsepower?

Hummel Engine
85 hp 94 mm bore x 86 mm stroke 2400 cc 137 to 167 lbs.
Options- Starter, Alternator, Accessory Case, Aluminum Nicom Cylinders, Dual Ignition
 

ScaleBirdsScott

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Feb 10, 2015
Messages
1,257
Location
Uncasville, CT
How did they build a liquid cooled engine that weighs just three pounds more than an air cooled V/W with less horsepower?

Hummel Engine
85 hp 94 mm bore x 86 mm stroke 2400 cc 137 to 167 lbs.
Options- Starter, Alternator, Accessory Case, Aluminum Nicom Cylinders, Dual Ignition
Well, most of that is Displacement vs. Rip'ems. Monolithic engine block also helps I'm sure.
 

ScaleBirdsScott

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Feb 10, 2015
Messages
1,257
Location
Uncasville, CT
Well The Suzuki G-motors have been around for 30 years already so, I think the longevity of the platform is as secure as need-be for most. In 30 more years you'll probably still have people in China making replacement parts to keep their fleets of mini-lorries going.

And even 10 years out of an aero engine that costs $9000 is probably plenty of time to recoup investment so if you're looking at 30 years of service and parts dry up, then that's probably enough blood squoze from the stone.
 

dino

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HBA Supporter
Joined
Sep 18, 2007
Messages
680
Location
florida
Apples to apples

From their site:
AM13
100 hp @ 5800 rpm (2240 prop rpm)
178 lbs dry weight

From their site:
Engine with carburetors 124.7lbs / 56.6Kg
Exhaust System 8.8lbs / 4.0Kg
Air Box 2.9lbs / 1.3Kg
Air Filter 0.7lbs / 0.3Kg
Liquid Radiator 2.2lbs / 1.0Kg
Oil Radiator 1.1lbs / 0.5Kg
Regulator-Rectifier 0.2lbs / 0.1Kg
Installed Weight 140.6lbs / 63.8Kg
Weight/power ratio 1.41lbs/HP / 0.87Kg/KW
 

cheapracer

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Sep 8, 2013
Messages
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Australian

cluttonfred

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Feb 13, 2010
Messages
7,545
Location
World traveler
I noticed recently that Aeromomentum now list a 1.0 3-cylinder option in development. Jeron Smith at Raven Redrives and others have offered these for years, of course, but I like that Aeromentum offers ready-to-run engine of all new parts. Mark Kettering of Aeromomentum says that the 3-cylinder should outperform a big-big bore VW and come in a little lighter and a little more fuel efficient. Suzukiplane doesn't roll off the tongue as easily as Volksplane, but I'll be keeping my eye on that one nonetheless.
 

rv6ejguy

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Jun 26, 2012
Messages
3,760
Location
Calgary, Alberta, Canada
I noticed recently that Aeromomentum now list a 1.0 3-cylinder option in development. Jeron Smith at Raven Redrives and others have offered these for years, of course, but I like that Aeromentum offers ready-to-run engine of all new parts. Mark Kettering of Aeromomentum says that the 3-cylinder should outperform a big-big bore VW and come in a little lighter and a little more fuel efficient. Suzukiplane doesn't roll off the tongue as easily as Volksplane, but I'll be keeping my eye on that one nonetheless.
I'm doubtful a non-turbo 1L will outperform a 2.2L engine, even with a gearbox unless you scream the crap out of it. Torsional vibration characteristics on 3 cylinder engines are not very friendly to deal with either. Can be done as Jeron did with a frictional damper but could be challenging. Most of my customers who flew 3 cyl. Suzukis eventually replaced them with 4 cylinder ones and were much happier despite the extra weight.
 

cluttonfred

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Feb 13, 2010
Messages
7,545
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World traveler
Thanks, Ross, I can't say from experience just passing on what I was told. It's not just about the direct drive vs. redrive but also about the larger, slower-turning prop that the redrive can swing. For something like the VP-2 that is already weight-challenged, every little bit helps.
 

Victor Bravo

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Joined
Jul 30, 2014
Messages
7,699
Location
KWHP, Los Angeles CA, USA
Most of my customers who flew 3 cyl. Suzukis eventually replaced them with 4 cylinder ones and were much happier despite the extra weight.
That sucks... I'm really sorry to hear that. Like so many others on HBA, I was very excited about the Raven 3 cylinder engines as a potential aircraft powerplant.
 
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