This is my winter project. I bought a do it yourself fuel injection ECU. I plan to fuel inject my DR 350 SE. Right now I am assembling the ECU then I will move onto installing it on the bike. After thinking about the project for quite a while it really does not seem that hard or expensive. I will post pictures of the progress.
winter project
Started by wildwestsydney, Jan 08 2007 04:54 AM
144 replies to this topic
Posted 08 January 2007 - 04:54 AM
This is my winter project. I bought a do it yourself fuel injection ECU. I plan to fuel inject my DR 350 SE. Right now I am assembling the ECU then I will move onto installing it on the bike. After thinking about the project for quite a while it really does not seem that hard or expensive. I will post pictures of the progress.
Posted 08 January 2007 - 05:27 AM
Can the alternator drive that unit? Remember that you will need the wattage to run the ECU and a fuel pump. Keep us posted.
Posted 08 January 2007 - 05:28 AM
You must have big uns. Just thinking about fuel pump, injector, and all the peripheral stuff to talk to the ECU would have me in a sweat. Then would probably have to change the mapping so more money. You go man!
Posted 08 January 2007 - 05:41 AM
Here is a link to a forum about the ECU
http://www.msefi.com/index.php
Tons of info here.
this is a better link:
http://www.megamanual.com
http://www.msefi.com/index.php
Tons of info here.
this is a better link:
http://www.megamanual.com
Posted 08 January 2007 - 08:18 AM
Very cool indeed. Good link but theres so much information on that board maybe you can answer a few of my questions.
How much do you plan to spend?
What sensors do you plan on using? o2, tps, map, mas, iat, any others?
What kind of throttle body will you use?
I have many more questions but I dont want to overwhelm you. Thanks
How much do you plan to spend?
What sensors do you plan on using? o2, tps, map, mas, iat, any others?
What kind of throttle body will you use?
I have many more questions but I dont want to overwhelm you. Thanks
Posted 08 January 2007 - 08:53 AM
megasquirt ECU kit $140.00
fuel injetor about $30.00
fuel pump $100.00
O2 sensor not mandantory but about $40.00
ECU kit comes with a MAP sensor
TPS about $20.00
temp sensors $15.00 each
I can convert the exhisting carburetor to be a throttle body
fuel injetor about $30.00
fuel pump $100.00
O2 sensor not mandantory but about $40.00
ECU kit comes with a MAP sensor
TPS about $20.00
temp sensors $15.00 each
I can convert the exhisting carburetor to be a throttle body
Posted 08 January 2007 - 11:10 AM
The prices seem reasonable. How do you program the ECU through a link to a PC or possibly burning EEPROM? It seems like getting the fuel map right would take a good deal of tweaking, any ideas on how you might approach the tuning side of things?
Posted 08 January 2007 - 11:19 AM
adams said:
The prices seem reasonable. How do you program the ECU through a link to a PC or possibly burning EEPROM? It seems like getting the fuel map right would take a good deal of tweaking, any ideas on how you might approach the tuning side of things?
No PROM burning required, the ECU kit comes pre programed. You down load tuning software and tune through a laptop. Check out this site there is a long list of FAQ's that explain a lot.
http://www.megamanual.com
Posted 10 January 2007 - 12:10 PM
Sounds interesting wildwest. How are you going to control the idle? Will you fit an IAC somehow (if you use the std carby as a throttle body?)
Posted 10 January 2007 - 06:47 PM
Marcus74 said:
Sounds interesting wildwest. How are you going to control the idle? Will you fit an IAC somehow (if you use the std carby as a throttle body?)
For an auto system this is done with a Idle Speed Control valve. Just a bypass valve driven by the ECU that ports air to the throttle body.
Posted 12 January 2007 - 06:12 PM
wildwestsydney said:
megasquirt ECU kit $140.00
fuel injetor about $30.00
fuel pump $100.00
O2 sensor not mandantory but about $40.00
ECU kit comes with a MAP sensor
TPS about $20.00
temp sensors $15.00 each
I can convert the exhisting carburetor to be a throttle body
fuel injetor about $30.00
fuel pump $100.00
O2 sensor not mandantory but about $40.00
ECU kit comes with a MAP sensor
TPS about $20.00
temp sensors $15.00 each
I can convert the exhisting carburetor to be a throttle body
What about a crank sensor? the ECU will need a rpm signal to increase fuel delivery with increased rpm. or will it receive engine speed reference from the ignition system?
Posted 14 January 2007 - 09:14 AM
stephend said:
What about a crank sensor? the ECU will need a rpm signal to increase fuel delivery with increased rpm. or will it receive engine speed reference from the ignition system?
RPM comes from ignition signal
Posted 14 January 2007 - 09:17 AM
I am just about done with the assembly of the ECU and so far it has tested out perfect. I have sourced a pair of throttle bodies from an SV 650 wich I plan to use one of them for the throttle body. I will try to snap a pic of the ECU this afternoon.
Posted 16 January 2007 - 05:28 AM
throttle bodies are on their way. The ECU is functioning perfectly on the tester. I will order the fuel pump and a couple of temp sensors this week.
Posted 16 January 2007 - 06:47 AM
Have you given any thought as to where you will mount the fuel pump or how you will work the fuel return line in to the system? How much current will this system draw?
Posted 16 January 2007 - 07:25 AM
drhach said:
Have you given any thought as to where you will mount the fuel pump or how you will work the fuel return line in to the system? How much current will this system draw?
i will have to put a fitting on the tank for a return line. I have not added up the total current required yet but I am confident I will have enough.
Posted 16 January 2007 - 12:41 PM
Can you elaborate on how you plan to do this fitting? I'm planning this very thing for a different kind of bike (BMW R90) and I'm stuck as to how to mount the return line without welding in a new bung.
Posted 16 January 2007 - 06:36 PM
drhach said:
Can you elaborate on how you plan to do this fitting? I'm planning this very thing for a different kind of bike (BMW R90) and I'm stuck as to how to mount the return line without welding in a new bung.
On the R90 you got two petcocks and two tees in the fuel lines, why not just plug it in anywhere.
