S
sortastock
Member
So I'm working on running a Phazer engine on megasquirt, just wondering who else has a megasquirt efi project out there? seems like a pretty sweet setup. We're hoping to get it idling by the sunday.
Megasquirt?!?
- Thread starter sortastock
- Start date
ha.. funny you should say that.. i was sure it had to do with something from switches emails..
S
SNOW JW
Well-known member
I've seen it run, looks like a pretty good deal.
oops!
Sorry, I thought this was about one of those "male enhancement" products.
Sorry, I thought this was about one of those "male enhancement" products.
ummm idk if it would work or not, it might if you get it up high enough in the rpm, it might still richen it out too much and bog but it sounds like a good project
Are you talking about the early 2 stroke or a new Phazer?
im guessing a new phazer because the old 2 smokers diddnt have efi and it would be a monumental project to put efi on it.
Id say old cause megasquirt is a way to put efi on any gas engine.
Why won't it idle??? You don't run nos at idle do you???
You can use Megasquirt to ad EFI to an older engine or use it to tune a new EFI engine. Megasquirt lets you play with lots of different engine parameters on 2-stroke or 4-stroke.
You starting from a map or from scratch? With stand alone systems and no map, try and get some reference information, like from the manual as far as ignition timing goes, or to see other similar setups. Don't worry about creating the full map right away, just make it a big block to be on the safe side (full block rich..., or rather your fuel curve will look like a rectangle instead of some cool 3-D map.
Do you have access to a dyno and engine recording information? A dyno will be very handy with creating a baseline map. Also a means of measuring pipe temp and engine temp, well at least engine temp, is very important. It is difficult to tune with the engine constantly in varying operating conditions... changes in temp, pressure and the like.
The system probably has offset tables for engine temp and the like....
I haven't used the mega squirt, but I have used the Motec system quite a bit. From what I have seen, just getting an engine to idle is going to be your most difficult challenge. There are lots of things to check and verify and setup so the control system is actually doing what you think it is doing... lots of times problems arise from that.. Like the stupid motec changing what it's setting for the crank trigger is....
What is this project for? I would assume this is the 4 stroke phaser? You have any good books to read?
I would highly recommend this book. Very good info, and one of the guys from factory pro racing helped write it. I have talked to him a few times and he knows his sh!t... or at least much much more than I do / did.
I am not sure about snowmobiles, but most motorcycles are alpha -n based, which means the maps are changed by throttle position and rpm only.....(not accounting for changes in operating or environmental aspects..) there are not any means of actually measuring the amount of air coming into the engine. Alpha -n is mostly used because the changes in rpm are so vast and quick that any amount of time trying to measure something and then calculate is futile since the rpm has already changed. This is different then a car or automobile as changes are much much smaller and slower, and since they are operated at steady state conditions for a higher percentage of time.
Seriously check out the book, it will help give you some insight into what all the changes have an effect on. I am ticked I gave mine away.... but I guess that is a reason to buy another one.
Do you have access to a dyno and engine recording information? A dyno will be very handy with creating a baseline map. Also a means of measuring pipe temp and engine temp, well at least engine temp, is very important. It is difficult to tune with the engine constantly in varying operating conditions... changes in temp, pressure and the like.
The system probably has offset tables for engine temp and the like....
I haven't used the mega squirt, but I have used the Motec system quite a bit. From what I have seen, just getting an engine to idle is going to be your most difficult challenge. There are lots of things to check and verify and setup so the control system is actually doing what you think it is doing... lots of times problems arise from that.. Like the stupid motec changing what it's setting for the crank trigger is....
What is this project for? I would assume this is the 4 stroke phaser? You have any good books to read?
I would highly recommend this book. Very good info, and one of the guys from factory pro racing helped write it. I have talked to him a few times and he knows his sh!t... or at least much much more than I do / did.
I am not sure about snowmobiles, but most motorcycles are alpha -n based, which means the maps are changed by throttle position and rpm only.....(not accounting for changes in operating or environmental aspects..) there are not any means of actually measuring the amount of air coming into the engine. Alpha -n is mostly used because the changes in rpm are so vast and quick that any amount of time trying to measure something and then calculate is futile since the rpm has already changed. This is different then a car or automobile as changes are much much smaller and slower, and since they are operated at steady state conditions for a higher percentage of time.
Seriously check out the book, it will help give you some insight into what all the changes have an effect on. I am ticked I gave mine away.... but I guess that is a reason to buy another one.
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