ESE's works engine tuner

[jbiplane]

emissions problem solved

When we use our proprietary Engine Management System which
controls fuel injection + ignition we got at least (compare carburetor):
4% more power at full throttle and 7% at medium rpm
30% of fuel economy
50% less CO in exhaust



Tested on UAVs. Hope will work nicely on high rpm engines.
Would be gratefull for english grammar and stylistic corrections

[Flettner]

jbiplane, thankyou.

I've been using the NZ made Link ECU. Used it on my Kawasaki crankcase/transfer port injected twostroke (shown in the picture, 2008) and also on the first B port TPI twostroke, YZ250 (2012)
This next development requires twin throttle control, detonation control and input sampling. The Link suits my needs for the moment.

[jbiplane]

Hi Flettner

This next development requires twin throttle control

I see why

I've been using the NZ made Link ECU

Its always nice to have local fuel injection solution supplier.

We had to develop EMS after few years ecotrons experience cause had unsufficient support and hardware problems. Finally we created our system with
1. End user price 200$
2. Completely compatible with very good EFI Analytics TunerStudio tuning software.
http://www.tunerstudio.com/index.php/tuner-studio
3. Completely open solution. It can use numerous third side components like fuel pump and nozzles available in customer local shops.
4. Spark energy control. Easy possible get spark which burn out sheet of paper.

We produce as well very lighweight starters-generators and 98% effecient voltage rectifiers which are relatively expensive, but may be rational for high end racing solutions. Can place additional information in this thread if someone interested.
As UAV engine company I don't completelly understant motocycle comunity needs, though for me reading this forum rather usefull.

[teriks]

jbiplane, that looks really professional!
Almost sorry I have no use for it...

[husaberg]

Tested on UAVs. Hope will work nicely on high rpm engines.
Would be gratefull for english grammar and stylistic corrections

JB you are a Russian company making drone engines should be be worried
If i understood your post correct your starter also runs as a generator much like an old Villiers and bubblecars had although they could also reverse the engine rotation have you considered other non flight applications for a small light efficient engine.

https://en.wikipedia.org/wiki/SIBA_Elektrik_G.m.b.H

[Jannem]

When we use our proprietary Engine Management System which
controls fuel injection + ignition

Seems the pinout table is missing ignition part of the system. Is that just a partial table you posted?

[Jannem]

It seems triple exhaust benefits from contracting the nozzle to 75%, but single only to 90%. Can anyone explain the reason why single would like to run at lower speed? Say in a case where you run the single port in small cc engine and you get the blowdown STA where it needs to be for the revs.

Ours is at 80%, and I'm wondering what to do with it.

No takers for this one at the time, but have thought about it. Theoretically it could be due to the fact that triple port of the same entry area is better from the velocity/pressure distribution standpoint due to being wider at the same area. This will reduce the local choking in the port and the nozzle.

Along that line of thought the triple port could be made even more efficient by putting the aux port exits into the main as close to the floor of the main as possible. This would improve the pressure distribution further potentially allowing even smaller nozzle area and potentially eliminating the need for ”detonation fin” in the nozzle, which I believe does what it does by improving pressure distribution at the high speed portion of the exhaust duct. With this approach I wouldn’t put the ”bulges” into the main for the auxes, as it would add area to the already low speed portion of the main, reducing the potential benefit.

It would also improve the efficiency of the aux ports by making the entry angle smaller.

Just a thought excercise, but it should not disagree with the physics of the gas flow.

[jbiplane]

Seems the pinout table is missing ignition part of the system. Is that just a partial table you posted?

Thanks. You find an error in English translation! I corrected the table. Pin 18 and 19 responsible for 2 ignition lines.

[jbiplane]

JB you are a Russian company making drone engines should be be worried
If i understood your post correct your starter also runs as a generator

We dont have military licenses (tried to get, but no sucsess) and produce mostly engines for geological drones and precise earth reliefs 3D scans. Our main customer is: http://uav-siberia.com/en/ Now we want extend our activities and product range.

Says next month we will start production of 2 cylinder boxer paramotor engines.

Related starter generator. Yes its work the way you mentioned.
We produce as well hybrid
11hp inline ICE engine
+ ~ 9hp electrical motor-generator.
You can launch drone on both engines and use electric or ICE during flight. This way we have at least 40% more range.

We start company in 2016 and actual web site dont reflect what we already achive. Will drastically update site in 2 month.

[Jannem]

Thanks. You find an error in English translation!
Yes, there is an error in the table. Pins 18 and 19 are for ignitions chanels, not injection. Will correct it.

That is almost magical intuition, when I actually missed seeing the entire right hand side of the pinout table...

Wonder if my head pulled a trick on me or if you changed the picture in your post?

[jbiplane]

That is almost magical intuition, when I actually missed seeing the entire right hand side of the pinout table...

Wonder if may head pulled a trick on me or if you changed the picture in your post?

Yes I changed the picture to dont mess other readers. Thanks again for error you pointed. It is first version of datasheet. Complete user manual should be ready soon and probably ~20 pages would be enough.

BTW we have pressure and themperture sensors of ambient air inside of light version of SmartEMS to decrease number of exernal wires. We have variant of throttle body with flat surface to fix most of EFI hardware on. So carburetor could be easily and paintless replaced by EFI. Only fuel pump with wires go to fuel tank and crankshaft position sensor near geared wheel on crankshaft.

[Jannem]

Yes I changed the picture to dont mess other readers. Thanks again for error you pointed. It is first version of datasheet. Complete user manual should be ready soon and probably ~20 pages would be enough.

BTW we have pressure and themperture sensors of ambient air inside of light version of SmartEMS to decrease number of exernal wires. We have variant of throttle body with flat surface to fix most of EFI hardware on. So carburetor could be easily and paintless replaced by EFI. Only fuel pump with wires go to fuel tank and crankshaft position sensor near geared wheel on crankshaft.

Seems like a cool product. I think for the racers couple of extra inputs and outputs similar to Ignitech race ignition could be a usefull add on.
Another cool one would be ignition retard map based on deto and tps sensor voltage. Or an auto retard function that aims for pre-determined deto sensor voltage.

[philou]

Hello Jbpilane,

The electrical connector and it provides ?

[SwePatrick]

Would you like to share more information about the engine ?
I'm very interested about your project. Great power and a lot of revs !

Hello.

No further progress has been done since the 35.2hp dyno run.

It is an Minarelli AM6 engine with a 'Roost Havoc 98' cylinder.
Bore stroke is 52/46mm

Keihin carb copy, 34mm
Vforce 3
Homebuilt pipe.
E85 fuel(at this time, will be methanol later on)

[jbiplane]

The electrical connector and it provides ?

Salut philou

Basic connector yes, wire harness and other components can be added, we can supply complete kits.

To get the best results with 2-strokes it is recomended to use wideband 02 sensor + Dyno for all setting.