DIY: Total loss on a budget

[waxhead]

Actually instead of being a smart arse I will explain it.
The 4217 fires every time it sees a lump. So there fore it's twice a revolution.
It measures each time it fires as an rpm so thus you need to double the rpm.
Due to the fact it's now reading every 180 degrees it thinks the lump is shorter because it's traveling faster.
The ignition needs to know the size of the lump and when it sees the start of the lump it calculates from the rpm it's doing on how long to hold the spark for. Possibly if you made the lump bigger you may be able to get more advance however when we were using the 760 ignition we could only get a max advance of about 26 degrees measured with a timing light. This included the advance on the lump as well as what the ignition would allow you to put in

 

[x2stroker]

Actually instead of being a smart arse I will explain it.
The 4217 fires every time it sees a lump. So there fore it's twice a revolution.
It measures each time it fires as an rpm so thus you need to double the rpm.
Due to the fact it's now reading every 180 degrees it thinks the lump is shorter because it's traveling faster.

Stick with e- bikes buddy, leave this to me.

 

[waxhead]

Stick with e- bikes buddy, leave this to me.

Ok mate you go for it.
I have no experience with ignitions at all.

 

[x2stroker]

Ok mate you go for it.
I have no experience with ignitions at all.

I never said that, but you and your attitude dose not belong here. So if you have nothing to add to this discussion please keep it to yourself.
Read the questions before you answer it.

 

[waxhead]

Thanks mate. Sorry about my bad attitude.
Let me know how it works out for you

 

[x2stroker]

Thanks mate. Sorry about my bad attitude.
Let me know how it works out for you

Absolutely, you will be the first one who's going to know it

 

[Nate_D]

Lol You guys are so hostile. I was actually inquiring as to how the ignition calculated the flywheel position in real time and how (and if) the difference in motor speed effected the ignitions ability to accurately determine it's location. Admittedly I do not know a lot about programmable CDIs. I googled it and found the answer though.

Very interesting read. I am looking forward to seeing what you do with the stock flywheel.


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[waxhead]

It sees the front of the lump. It then uses a look up table based on the length of the lump in degrees and it's rpm to know how many Milliseconds to hold before it fires

I know what your trying to do x2 stroker I have tried ut before and ended up using a modified programable sxr ignition to ,are a total loss system for my superjet race boat

It would have been easier in the long run to use one of these as I did when I did the triple blaster blaster
http://www.zeeltronic.com/page/products.php
http://www.pwctoday.com/showthread.php?t=418776

Anyway back to my e-bike ?

 

[x2stroker]

It sees the front of the lump. It then uses a look up table based on the length of the lump in degrees and it's rpm to know how many Milliseconds to hold before it fires

I know what your trying to do x2 stroker I have tried ut before and ended up using a modified programable sxr ignition to ,are a total loss system for my superjet race boat

It would have been easier in the long run to use one of these as I did when I did the triple blaster blaster
http://www.zeeltronic.com/page/products.php
http://www.pwctoday.com/showthread.php?t=418776

Anyway back to my e-bike ?

Mine with the total loss setup runs perfectly fine, and it pulls the 37° advance.
That website is interesting. Thanks for sharing

 

[waxhead]

Have you checked your advance with a timing light or on the software.
The zeeltronic can be programmed for two lumps and will then fire wasted spark as the stock cdi does.

 

[x2stroker]

Have you checked your advance with a timing light or on the software.
The zeeltronic can be programmed for two lumps and will then fire wasted spark as the stock cdi does.

Yes I did, if you read the first post it will tell you I use the hall sensor no lumps on the flywheel

 

[waxhead]

Yes I know the sensor you are using. I read that. I'm shocked your managing to get 37
The way you have the software curve on the screen shot will give you 16.5 degrees timing plus your lead of 10 degrees you said the magnet was ten degrees so at the best 26.5 degrees.
But if you have checked it with a timing light and a correctly marked out system like a graduated coupler using dial guage then you must be right

 

[x2stroker]

Yes I know the sensor you are using. I read that. I'm shocked your managing to get 37
The way you have the software curve on the screen shot will give you 16.5 degrees timing plus your lead of 10 degrees you said the magnet was ten degrees so at the best 26.5 degrees.
But if you have checked it with a timing light and a correctly marked out system like a graduated coupler using dial guage then you must be right

I always buy the best tools to keep me in business so can't blame that, if my marks are not perfect maybe but I'll check it again.

 

[x2stroker]

 

[waxhead]

Ignitech are a good ignition and have a heap more options than the 4217. You can set them up to regonizes two pulses per rpm as well. I would have happily ran one of those but they don't do a triple channel like the zeeltronic.

 

[x2stroker]

Ignitech are a good ignition and have a heap more options than the 4217. You can set them up to regonizes two pulses per rpm as well. I would have happily ran one of those but they don't do a triple channel like the zeeltronic.

Yes they do go look at the product page

 

[waxhead]

They didn't used to. But cool you can use that on a gp1200 as they have three pickups and one lump

 

[Roseand]

So what's the deal with all this.. Are you guys basically saying that the ignitech and msd single cylinder ignition are just as good as the TL brains that are marketed for our skis? But way cheaper? It sounds too good to be true..

 

[x2stroker]

So what's the deal with all this.. Are you guys basically saying that the ignitech and msd single cylinder ignition are just as good as the TL brains that are marketed for our skis? But way cheaper? It sounds too good to be true..

Sometimes my friend you're only paying for the name and our sport is not supposed to be cheap.
Yes that's what are we saying

 

[waxhead]

all ignitions are is a time delay switch. They use the pick up to tell the cdi where the engine is, it then holds the ignition until so many milliseconds have passed then releases the spark. I used a rad 760 flywheel and a modified sxr ignition to run my race boat for ages. The ignitech and the zeeltronic will do both this. I tried to use a msd4217 my experience was that it was not as good due to it not liking two pulses per revolution. It will run I have run it before