Author Topic: Fuel injection retrofit  (Read 8631 times)

Offline gpineau

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Re: Fuel injection retrofit
« Reply #135 on: July 01, 2018, 08:08:35 pm »
This topic was first created on the v4musclebike forums and duplicated on the zggtr.org forum.

Since the beginning the "project" has created much interest, praise and criticism.

Since the project is not specific to the concours or the v4 muscle bikes I have decided to continue the discussion here in a format that is generic to any bike with carburetors.

http://gpineau.com/phpbb/viewtopic.php?f=2&t=2&p=2#p2
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Offline gPink

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Re: Fuel injection retrofit
« Reply #136 on: July 01, 2018, 08:46:19 pm »
Will you not be updating this thread?
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #137 on: July 06, 2018, 11:22:31 am »
I will only post major achievements and milestones.

http://gpineau.com/phpbb/viewtopic.php?f=2&t=2&p=2#p2
« Last Edit: July 06, 2018, 10:30:16 pm by gpineau »
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Offline gPink

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Re: Fuel injection retrofit
« Reply #138 on: July 06, 2018, 06:51:31 pm »
Thanks, looking forward to your updates.
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #139 on: July 12, 2018, 05:37:46 pm »
1 Connie, 2 Magnas, 1 Yamaha Vstar 950 Touring.
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #140 on: July 17, 2018, 02:24:56 pm »
Some news. Maybe good , maybe not. But I got excited when I learned about it.

My hardware design is a pretty primitive breadboard and the software has just begun. I learned from a friend  that there is a group that has already gone down the same path. They are using the same hardware that I picked and are very far along on the software development.

I just found it and am looking at their information now. Looks very promising. If it pans out then I am miles ahead to just scrap my circuit board and go with their's .. I will update after I have a chance to dig into it.

I just bought the hardware boards and it will take several weeks to arrive from Iseral. I already have their software loaded on my machine and I will be ready when the hardware arrives.
1 Connie, 2 Magnas, 1 Yamaha Vstar 950 Touring.
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Offline gPink

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Re: Fuel injection retrofit
« Reply #141 on: July 17, 2018, 06:30:13 pm »
Do you know what they are using for a test mule?
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #142 on: July 17, 2018, 08:57:35 pm »
not sure but they are claiming 80 known installations ranging  from car to motorcycles to stationary engines. 

With all the research I have done and all the googling I have done I am shocked that I did not see this before.

I have the hardware ordered and I have the firmware on my machine. I am configuring it now a will be trying to compile the code and load it onto my ecu.
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #143 on: July 18, 2018, 10:25:16 am »
The ECU is based on the Arduino micro-controller.  They control both the injectors and the spark and require feedback from the motor timing.

It requires either a sensor on a crank sprocket with one missing tooth or a once around signal on the camshaft to know when top dead center of cylinder 1 occurs.

Last time I looked inside the crankshaft cover it seemed pretty crowded. I don't think there is room for another sensor in there. 

Perhaps a magnet mounted on one of the cam sprockets would suffice.  More study is required.

???
From their documentation ...

" A dual wheel trigger is one where there is a primary multi-tooth wheel combined with a secondary single pulse to provide location information. The primary input should contain no missing teeth. Both pulses can run at either cam or crank speed, but sequential operations requires that the secondary pulse is located on the cam. The design of the secondary trigger can vary (Eg a single short tooth, half-moon wheel etc), provided it only provides a single pulse per revolution.

Tooth #1 is defined to be the first tooth on the primary wheel AFTER the pulse on the secondary wheel."

it looks like the missing tooth is not necessary if there is a second sensor to indicate where the cam is. So a sensor on the flywheel and another on the cam should be what they are looking for.
« Last Edit: July 18, 2018, 11:45:31 am by gpineau »
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #144 on: July 19, 2018, 07:30:30 pm »
Not keeping it secret. Just wanted to understand it and that is is a viable solution before sending everyone off to chase after it. Looks good so far.

Maybe you have already heard of them but I never did until about 4 days ago.

I think they are based in England and are miles ahead of my one off prototype.

Here is a link that will get you to their website.

https://speeduino.com/wiki/index.php/Overview
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #145 on: July 23, 2018, 09:56:08 am »
Been talking with the developers and others about this EFI solution
Turns out the crank sensor is not necessary for basic operation.

http://gpineau.com/phpbb/viewtopic.php?f=2&t=2&p=6#p6
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Offline gpineau

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Offline gpineau

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Re: Fuel injection retrofit
« Reply #147 on: August 01, 2018, 04:30:48 pm »
Still waiting for my speeduino board to arrive from Israel.  Meanwhile ....I got some new toys.

http://gpineau.com/phpbb/viewtopic.php?f=2&t=2&p=9#p9
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #148 on: August 09, 2018, 12:58:56 pm »
My Speeduino board finally arrived. I found the schematics and documentation online. There was even a CAD file of a case for it to fit in which I promply printed on my new 3D printer.

I've got a lot of bench testing to do but this is going to be fun for a while.

https://fuelinjectorproject.shutterfly.com/pictures/129#129
1 Connie, 2 Magnas, 1 Yamaha Vstar 950 Touring.
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Offline gpineau

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Re: Fuel injection retrofit
« Reply #149 on: August 10, 2018, 03:28:46 pm »
I've been playing with it all day and made some progress. Time to quit and go to work.
http://gpineau.com/phpbb/viewtopic.php?f=2&t=2&p=13#p13
1 Connie, 2 Magnas, 1 Yamaha Vstar 950 Touring.
https://motostuff.shutterfly.com/pictures