No more ecu remapping ??

[Chaz]

That mixed with customer demand. Grandma doesn't want to be on her pontoon with a 2.5 screamin at the back..... although she is deaf anyways, so does it really matter?

She probably wouldn't want trip~fou-fiddy's either ...

The rim canal around Lake Okeechobee has dozen's of places where they built little communities on the finger canals they cut. Most of those places have a toon or three in the back yard or in the water. Most of them have old - old two strokes on them between 50 to 90 hp. Couple good shops out there that keep em going for those folks ...
Or at least that's the way it was last time I was out that way ..

Power seyz >
except for car engines that now all make way more power than in the 70's and pollute way less and use less fuel and meet much tougher EPA regs
how does that fit your theory?

Power .. OX MOX KNOX .. burnt gas .. Needs to smell like Klotz

The crap they sell today at the pump is barely gas. The gas I bought as a kid at the Sunoco station acted just like VP does. Throw a small test / drain cup of it on the concrete .. look away, then , look back at , it has already evaporated .. clean .
You do the same with todays gas , you still got an oil slick 20 seconds later and it leave a stain ...

The cars of yesteryear made way more power than they were rated at. And it didn't take much to get twice the rated power out of them .

Todays cars have better cylinder heads on them . Sequential Port Injection and Coil on plug Ignition , which has done a lot to make them more efficient and manageable.
All that is done to older larger displacement designs . With the expected results .

Which brings us back to the threads topic. Seems there are "aftermarket chips" and tuner programs available ... for just about evert car or truck made. As well as web forums for each , yet when it comes to simple outboard type electrical tasks , there seems to be no parts be they piggy-back or a tuner program and a open exchange of information.
Seems odd, that an industry that has not had much of a leash put on it , would be the lowest on the totem pole when it comes to performance related electronics .

[PanRonnie]

the problem in my view is not the electronics but the reluctance to install it
my PM inbox has been filled with messages asking me about installing after market engine management systems
and what happens after i take the time explaining as much as i can
Absolutely nothing
there was a idea for a long time that the electronics would be to slow as everything on a two stroke was working twice as fast
newsflash 7000 rpm on a two stroke is the same as 7000 rpm on a four stroke
you literately have people on this website removing EFI and installing carburettors because that is what they understand
you have to take the effort to understand engines and management systems
but maybe now peolple will actually take the effort instead of the blue pill or was it the red i don,t remember!?

[powerabout]

Hi Pan
If you want ecu spark and sequential injection the 2 stroke ecu has to run at a speed that is usually higher than the hz of the processor.
Thats why lots of ecu sellers will tell you they dont do 2 stroke.
If you batch fire the fuel and dont control spark then lots will do it.
Microsquirt for example.

[PanRonnie]

Power you exactly describe the misconception
An ecu runs through a cycle and devides along the way when to give a spark
A v6 two stroke is the same as a v12 fourstroke the problem is not the stroke or cycle but crank wheel tooth
The more tooth on the crank the higher the cpu load

[powerabout]

Power you exactly describe the misconception
An ecu runs through a cycle and devides along the way when to give a spark
A v6 two stroke is the same as a v12 fourstroke the problem is not the stroke or cycle but crank wheel tooth
The more tooth on the crank the higher the cpu load

No i dont have it wrong, its actions per time of the computer.
Actions per 360 degree is another issue.
The processor can only do so much per second.
Hence many ecu,s are limited.
I have email replies from several saying sorry with our processor its all over at 6000 for a 2 stroke..
Meaning we can run a 4 stroke to 10k easy.
Buy our top end ecu it has a faster processor.

[PanRonnie]

No i dont have it wrong, its actions per time of the computer.
Actions per 360 degree is another issue.
The processor can only do so much per second.
Hence many ecu,s are limited.
I have email replies from several saying sorry with our processor its all over at 6000 for a 2 stroke..
Meaning we can run a 4 stroke to 10k easy.
Buy our top end ecu it has a faster processer.

i would argue that you do have it wrong!
you are talking to the wrong people
the biggest problem why i can,t get the mercury 60-6 code added to the stock code
is because the average scream and fly neh sayer just keeps opening a six pack and tries to convince everybody else he knows better
would you agree that i know what i am talking about!?
in the included video is the megasquirt code running the mercury 60-6 wheel i put together almost 10 years ago , look at the date 8 September 2011 this was on an MS2
i challenge you to buy a megasquirt ultimate and prove me wrong!
until then this is a toddler fight which delivers no end result
so lets get **** done here
i not only challenge you but also the rest of the members reading this post
so we can put this argument behind us

[Whaaaaat]

except for car engines that now all make way more power than in the 70's and pollute way less and use less fuel and meet much tougher EPA regs
how does that fit your theory?

Do you know what an egr valve is, what it does?

Catalytic converters?

Displacement on demand?

If the green nazi's get there way, all cars will be using that blue gorilla piss that the owners of new diesels are forced to use.

[Whaaaaat]

The commies have some bail fund that bail out looters, I got $5 to donate to the , hey EPA shove that fine up your ass fund,.

As mentioned before it really calls up a lot of questions about ownership and private property rights.

[Chaz]

Ronnie , there is no doubt you know what your talking about . I believe what Power is trying to say is ... (well there's no tellin with him LOL) .

That a two stroke does all it's business in one revolution. 360*

A four stroke at the same 7000 rpm is working the fuel and ignition at 3500 rpm , or every other stroke or 720*

And yes , I'm one of the PIA's whom he's written back and forth with for years.

There are a few key factors in not taking the plunge .

Cost ... not that they are crazy expensive , but dash boards , interface units etc. all add up.

Build your own harness from scratch . Not everyone is up to the task.

Building fuel and spark tables ... As Ronnie has told me , data log the motor with the stock PCM , load those numbers as a start .

I wanted to keep the stock flywheel , electric oil pump , shift interrupt , heat and low oil warnings. I membered up to the sites Ronnie suggested as well as a few others. Ronnie is the only one on most of them that speaks of outboards , or two strokes in general .
The young kid who is in over his head asks a question about his new MS-3 he's putting on his Mazdoyota .. more times than not is told to read the instructions and post a data log .. hard to do if you can't get it to start.

I think they would sell a lot more units if they made one that fits a motor that has nice sensors , coils , injectors , trigger system , and wiring harness already mounted and neatly placed . I understand there are guys out there that want to start from scratch .. But I'll bet there are more that would rather unplug theirs, and either replace the unit , or better yet , unplug and plug a piggy-back unit into the PCM and then plug the stock harness into the piggy-back .. An open door to the chip or another chip that's got a good start already loaded and open.
Then tune with a cell phone , tablet , or laptop .. while on the fly .. that way, all your base numbers are in place , and your just shrinking , stretching , holding time in place or leading out front a few degree's .

I do have to admit .... changing a few jets is a lot easier than , open these 6 box's , yes , yes , no , open , close , no thats in cold start , open , close , +8% , +2* enter / load , exit ... Wait - wait , what came after the first drop down I said yes in ..

[Chaz]

Do you know what an egr valve is, what it does?

Catalytic converters?

Displacement on demand?

If the green nazi's get there way, all cars will be using that blue gorilla piss that the owners of new diesels are forced to use.

I know what an EGR valve does ...

Besides trying to burn part of the spent gas's for a second time ...

They make the dash light up every 25,000 miles ...

Repair Report - P1405 Mar 17, 2020 10:14 AM© BlueDriver 20191999 Ford F-1501FTRF17W3XNXXXXX Odometer: 0 mi

DPF EGR Sensor Upstream Hose Off or Plugged• DPFEGR sensor connector is damaged (check pins for damage, and moisture)• DPFEGR sensor upstream hose is disconnected• DPFEGR sensor upstream hose is plugged (ice)• EGR tube is plugged or damaged•

Replaced Differential Pressure Feedback EGR (DPFE) Sensor• Replaced EGR Vacuum Modulator• Replaced Exhaust Gas Recirculation (EGR) Vacuum Switching Valve (VSV) w/P0405

Cadillac converters .. Those are the trophy's he keeps in the trophy case , along the mantel , night stand etc.

Displacement on demand ... that's easy ... <---( full jug of Nitrous )

[powerabout]

Do you know what an egr valve is, what it does?

Catalytic converters?

Displacement on demand?

.

sure I do and perhaps the 4 slug outboards will need that soon if the EPA keeps pushing their regs.
I notice Sterndrives have cat cons now...

[powerabout]

i would argue that you do have it wrong!
you are talking to the wrong people
the biggest problem why i can,t get the mercury 60-6 code added to the stock code
is because the average scream and fly neh sayer just keeps opening a six pack and tries to convince everybody else he knows better
would you agree that i know what i am talking about!?
in the included video is the megasquirt code running the mercury 60-6 wheel i put together almost 10 years ago , look at the date 8 September 2011 this was on an MS2
i challenge you to buy a megasquirt ultimate and prove me wrong!
until then this is a toddler fight which delivers no end result
so lets get **** done here
i not only challenge you but also the rest of the members reading this post
so we can put this argument behind us

we are arguing on tangents, I said lots of ECU's dont have enough processor speed to run a 2 stroke and gave you the example of a Microsquirt.
And thats why lots of the manufacturers say they cant do 2 strokes or cant with low end ecu's or not at all.
You came back and said a MS3 can, yes I agree and so do bowling and grippo ( who designed both boxes) with both our statements

[PanRonnie]

Cost ... not that they are crazy expensive , but dash boards , interface units etc. all add up.

working on that one as my little adafruit project is not sunlight readable


so a raspberry pi running a full version of tunerstudio that would include autotune
with a sunlight readable display in your boat without breaking the bank!

[InjectorService]

Sooooo heres a question. Why are we trying to run this 2-stroke motor with a Megasquirt in the first place? Why don't we take a known working ECM such as one used in an Optimax and run everything off that?

[PanRonnie]

Because you would go bankrupt!
https://www.woodward.com/-/media/pub...8/40/36316.pdf