I have been hearing the hype about it for years now, but so far Zip, Nada. Its been in 'Development' for so damn long, I am beginning to think the whole thing is a scam.
I bet it has trouble with sump oil passing rings or problems associated with pistons or liners like most loop scavange 2 stroke diesels, although modern technology should help.
@tpvalley Perhaps. I think the issue could be with an Aluminum Block Diesel. The use of Aluminum in an @18 to 1 compression engine has never been durable or very successful. There is promise of a solution to the problem of the Light Weight Alloy block Diesel in the works tho. The research on a Magnesium Block for Diesels is well advanced, and they are being test run now. I think that will be the future...Either that or maybe the 'Opposed Piston Opposed Cylinder' engine from Eco Motors.
the Eco engine is an ancient design; u know harland and wolf made a similar diesel engine in the very early 20th centurey?
extra long con rod for outer pistons etc make it pointless in my opinion, the design failed years ago and now somebody is reinventing the wheel in a square shape!
@tpvalley Interesting, Ty. I did not know that. I thought it was a new iteration of the Junkers opposed piston diesel Aero engine from WWII. Others have been working on the same problem for years, but they all seem to be stuck in 'Development'. Audi has made huge Tech strides in Power per CC from a Diesel in their Le Mans autos.
I don't know how the companies make money and stay in business, but I suspect it is scamming Investors Ala Moeller Skycar...it would not be the first time.
if u google "vintage hot bulb diesels" or old hot bulb diesels" there is a sight with many old designs; some 2 strokes have second row of inlet ports above intake ports, they are reed valve controled and higher that exhaust ports, so that they only flow on the up stroke, when ex ports are covered, so u can blow them harder and not blow it all out of exhaust, many cool ideas.
Also I have an old book with an alco 2 stroke diesel for ships!
I'm getting a little concerned, the engine hasn't been released yet. I'm wondering if there's a major flaw that's cropped up. Not much is being said these days. Constructive conversation is invited.
with this power to weight ratio and size im surprised it doesnt come as an outboard powerhead.. the outboard engine market is huge and with a "non certified"-lisence buil, per haps even non turbo engine ot should outperform and cost less than the large multicylinder, supercharged outboards available now...
im sure both evinrude and mercury could produce all parts in house under lisence
so this is a 2-stroke diesel, but contrary to the vast majority of 2-stroke diesels, it doesn't have exhaust valves, it has exhaust ports on the liners as a gas 2-stroke, please correct me, or confirm.
@WickedTRX You are thinking of the old Detroit diesels. This one works on the same idea but does use ports instead of exhaust valves. They both need a supergharger to run, unlike a normal 2 stroke that uses crankcase pressure to charge the cylinders. Some Detroit's would run sans blower but just barely.
@klesmer Intake and exhaust ports, Blower to scavange spent gases, it makes for a really compact engine. no cam shaft, no rods... one of the things I like most about simple diesels is that all is controlled by the injection pump, no need for throttle bodies, spark plugs and ignition systems, more fuel more torque, more rpm more advance, but all done by fuel.
@WickedTRX You are preaching to the choir kiddo, I've been driving diesels since 1982. I didn't give these folks much notice a few years ago but I had a lengthy conversation with them last week at Sun 'Fun and I feel they have a winner, with a bunch of solid orders to fill. Their next hurdle is to get into production. My only concern is they are noisy- loud combustion noise. They said they are working on it. I wish them luck.
@klesmer Although I have no idea about aero certification and how fail safe these are considered, automotive common rail technology seems to me a great way to minimise that, some systems do as much as 8 separate injections per cycle, some well before tdc, feeding the combustion progressively for a longer period and minimising that known diesel knock. VW’s TDI previous injection system with a pump for each injector has a very good redundancy.
@WickedTRX Absolutely, common rail would lessen the combustion noise and improve fuel ecomnomy as well. I ran this passed Delta Hawk and for now , they want to keep things as simple and electronics free as possible.You might see common rail in the future. Common rail technology is the best thing that has happend to internal combustion engines, diesel and gasoline.
common rail and electronics have made diesel cars faster and more economical, but its also made them less reliable, less suitable for 3rd world countries and so defeating the purpose of the diesel which is reliability, ruggedness and efficiency.
I HATE with a passion any electronics; all forced upon us by bloody politicians that r in the pockets of the manufacturers so that we r forced to buy new technology in the name of GREENness, but its for profit and dependence.
@tpvalley I agree with most of what you say but for applications in civilized senerio's common rail is here to stay. Do I morn for the old school way ? Absolutely. But electronics are getting much,much better, more dependable and durable. That being said, if I were to venture to a third world country, I would take old school mechanical diesel any time. Probably something from Japan or Korea.
I would take an old toyota hilux or landcruiser; as it so happens the new landcruiser has been ruined by electronics; do u know the UN has something like 6,000 toyota 4x4's?!!
If touring saudi or somehwere like that I would pick an old ford 7.3idi or even a gm 8.2 diesel, after all diesel costs only 2.5p a litre!
Diversity leading to volume is what the aviation world needs desperately to keep the damned costs down. Look at the Rotax 912 and Lycoming strictly the aviation market thus reflected in the huge costs for these powerplants.
Oh my - Oh my. I have a 400 horse power 400 cubic inch gasoline chevy small block in my 81 Camaro right no, and this is making me forget about that ! I would like to see some engine dyno test pull results on the prospective 8 cylinder. This is thrilling me almost as much as the COATES DRUM VALVE cylinder heads ! This is a 2 stroke port piston turbo diesel - RIGHT ? I am VERY VERY impressed. Put it all together with roller bearings in the bottom end for better RPM's and gain 20% more power.
@starcatcher7777 u need pre heated veg oil before you can use it, remember that it can support the use of road diesel fuel as well but I don't recommend the use of bunker fuel which is similar fuel that use on a ship
In 2009 I heard them quote somebody a price of $62,000. They missed their target price by 32,000. Ridiculous, even if it looks like a decent engine.
PDZ1122 2 months ago
I have been hearing the hype about it for years now, but so far Zip, Nada. Its been in 'Development' for so damn long, I am beginning to think the whole thing is a scam.
Either bring it to market or STFU.
Bravo21 2 months ago
@Bravo21
I bet it has trouble with sump oil passing rings or problems associated with pistons or liners like most loop scavange 2 stroke diesels, although modern technology should help.
tpvalley 2 months ago
@tpvalley Perhaps. I think the issue could be with an Aluminum Block Diesel. The use of Aluminum in an @18 to 1 compression engine has never been durable or very successful. There is promise of a solution to the problem of the Light Weight Alloy block Diesel in the works tho. The research on a Magnesium Block for Diesels is well advanced, and they are being test run now. I think that will be the future...Either that or maybe the 'Opposed Piston Opposed Cylinder' engine from Eco Motors.
Bravo21 2 months ago
@Bravo21
the Eco engine is an ancient design; u know harland and wolf made a similar diesel engine in the very early 20th centurey?
extra long con rod for outer pistons etc make it pointless in my opinion, the design failed years ago and now somebody is reinventing the wheel in a square shape!
tpvalley 2 months ago
@tpvalley Interesting, Ty. I did not know that. I thought it was a new iteration of the Junkers opposed piston diesel Aero engine from WWII. Others have been working on the same problem for years, but they all seem to be stuck in 'Development'. Audi has made huge Tech strides in Power per CC from a Diesel in their Le Mans autos.
I don't know how the companies make money and stay in business, but I suspect it is scamming Investors Ala Moeller Skycar...it would not be the first time.
Bravo21 2 months ago
@Bravo21
if u google "vintage hot bulb diesels" or old hot bulb diesels" there is a sight with many old designs; some 2 strokes have second row of inlet ports above intake ports, they are reed valve controled and higher that exhaust ports, so that they only flow on the up stroke, when ex ports are covered, so u can blow them harder and not blow it all out of exhaust, many cool ideas.
Also I have an old book with an alco 2 stroke diesel for ships!
tpvalley 2 months ago
@Bravo21
actually I cant find that website, dammit cant recall the exact name....
tpvalley 2 months ago
opoc engine how it works.mp4,,,an aircraft version????
garyshouse305 4 months ago
The UK Diesel Air 2-stoke opposed piston engine is superior. A nice engine though.
Maybe they should optimize the engine to turn a genny at a constant speed (simpler) which powers an electric motor which turns a prop.
NearAbbeyRoad 5 months ago
I'm getting a little concerned, the engine hasn't been released yet. I'm wondering if there's a major flaw that's cropped up. Not much is being said these days. Constructive conversation is invited.
Tnx.
birthoftime 5 months ago
with this power to weight ratio and size im surprised it doesnt come as an outboard powerhead.. the outboard engine market is huge and with a "non certified"-lisence buil, per haps even non turbo engine ot should outperform and cost less than the large multicylinder, supercharged outboards available now...
im sure both evinrude and mercury could produce all parts in house under lisence
deuce454 8 months ago
so this is a 2-stroke diesel, but contrary to the vast majority of 2-stroke diesels, it doesn't have exhaust valves, it has exhaust ports on the liners as a gas 2-stroke, please correct me, or confirm.
WickedTRX 11 months ago
@WickedTRX You are thinking of the old Detroit diesels. This one works on the same idea but does use ports instead of exhaust valves. They both need a supergharger to run, unlike a normal 2 stroke that uses crankcase pressure to charge the cylinders. Some Detroit's would run sans blower but just barely.
klesmer 10 months ago
@klesmer Intake and exhaust ports, Blower to scavange spent gases, it makes for a really compact engine. no cam shaft, no rods... one of the things I like most about simple diesels is that all is controlled by the injection pump, no need for throttle bodies, spark plugs and ignition systems, more fuel more torque, more rpm more advance, but all done by fuel.
WickedTRX 10 months ago
@WickedTRX You are preaching to the choir kiddo, I've been driving diesels since 1982. I didn't give these folks much notice a few years ago but I had a lengthy conversation with them last week at Sun 'Fun and I feel they have a winner, with a bunch of solid orders to fill. Their next hurdle is to get into production. My only concern is they are noisy- loud combustion noise. They said they are working on it. I wish them luck.
klesmer 10 months ago
@klesmer Although I have no idea about aero certification and how fail safe these are considered, automotive common rail technology seems to me a great way to minimise that, some systems do as much as 8 separate injections per cycle, some well before tdc, feeding the combustion progressively for a longer period and minimising that known diesel knock. VW’s TDI previous injection system with a pump for each injector has a very good redundancy.
WickedTRX 10 months ago
@WickedTRX Absolutely, common rail would lessen the combustion noise and improve fuel ecomnomy as well. I ran this passed Delta Hawk and for now , they want to keep things as simple and electronics free as possible.You might see common rail in the future. Common rail technology is the best thing that has happend to internal combustion engines, diesel and gasoline.
klesmer 10 months ago
@klesmer
common rail and electronics have made diesel cars faster and more economical, but its also made them less reliable, less suitable for 3rd world countries and so defeating the purpose of the diesel which is reliability, ruggedness and efficiency.
I HATE with a passion any electronics; all forced upon us by bloody politicians that r in the pockets of the manufacturers so that we r forced to buy new technology in the name of GREENness, but its for profit and dependence.
tpvalley 9 months ago
@tpvalley I agree with most of what you say but for applications in civilized senerio's common rail is here to stay. Do I morn for the old school way ? Absolutely. But electronics are getting much,much better, more dependable and durable. That being said, if I were to venture to a third world country, I would take old school mechanical diesel any time. Probably something from Japan or Korea.
klesmer 9 months ago
@klesmer
I would take an old toyota hilux or landcruiser; as it so happens the new landcruiser has been ruined by electronics; do u know the UN has something like 6,000 toyota 4x4's?!!
If touring saudi or somehwere like that I would pick an old ford 7.3idi or even a gm 8.2 diesel, after all diesel costs only 2.5p a litre!
tpvalley 9 months ago
It's just a pity that they missed their target price by over 100% - from around $30k to about $62k. Insane price , OK engine.
PDZ1122 1 year ago
Diesel blows. I'm amazed that these guys are still trying.
idontcare80 1 year ago
@idontcare80 Troll.
joffeloff 1 year ago
@idontcare80 Well in relation to non existent avgas it is better :-)
fmanh 11 months ago
Diversity leading to volume is what the aviation world needs desperately to keep the damned costs down. Look at the Rotax 912 and Lycoming strictly the aviation market thus reflected in the huge costs for these powerplants.
ismasamov55 1 year ago
SPY SAPPING MY SENTRY?
MrVann123 1 year ago
Oh my - Oh my. I have a 400 horse power 400 cubic inch gasoline chevy small block in my 81 Camaro right no, and this is making me forget about that ! I would like to see some engine dyno test pull results on the prospective 8 cylinder. This is thrilling me almost as much as the COATES DRUM VALVE cylinder heads ! This is a 2 stroke port piston turbo diesel - RIGHT ? I am VERY VERY impressed. Put it all together with roller bearings in the bottom end for better RPM's and gain 20% more power.
mrnewagemotor 1 year ago
you have my attention
semelton1 1 year ago
Drill baby Drill!!
peejaa 1 year ago
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k221tizo1111 1 year ago
WHO IS THAT GIRL?
wasjunk 1 year ago
Can you use veg oil in this ?
starcatcher7777 1 year ago
@starcatcher7777 where to have a $100 burger? ... lunch at wherever there's stale oil. LOL
MetaView7 1 year ago
@starcatcher7777 u need pre heated veg oil before you can use it, remember that it can support the use of road diesel fuel as well but I don't recommend the use of bunker fuel which is similar fuel that use on a ship
josephtan1818 1 year ago
I bet 2 more years... They said 8 months at last years sun & fun.
JTGmartin 1 year ago
lol, can't wait to get off of 100LL
masterchiefgtx 1 year ago
that is pretty sweeet.
chestateegold 1 year ago
cool
drumaboy013 1 year ago