Self tune mefi burn, am I crazy?
03-19-2013, 11:48 AM
#21
Hey thanks for the tips.
I have a stock mefi3 system, and stock merc HEI ignition....no plans to change.
The ECU is stock, and I will save the files as you noted. Finding someone to provide a "close" tune to adjust is near impossible, mainly because they will lock it so that their hard work can not be pirated.
The hardest part that I see ahead of me is aligning the ARF readings with the ecu data log. From what I can tell with the stuff I planned to purchase so far it would be manual, I need to do more research because I would like the two to work in the same log.
I have a stock mefi3 system, and stock merc HEI ignition....no plans to change.
The ECU is stock, and I will save the files as you noted. Finding someone to provide a "close" tune to adjust is near impossible, mainly because they will lock it so that their hard work can not be pirated.
The hardest part that I see ahead of me is aligning the ARF readings with the ecu data log. From what I can tell with the stuff I planned to purchase so far it would be manual, I need to do more research because I would like the two to work in the same log.
03-19-2013, 12:59 PM
#22
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This AFR meter logs data. Not sure if it logs it over rpm or not but if so that would be the ticket IMO.
03-19-2013, 01:25 PM
#25
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If it were me would can all the merc crap, run a laptop programable on your boat and be done with all this sending back and forth B/S...its a short in the dark and usually not very close to where it should be....I run megasquirt with my own EFI setup with a procharger....
03-19-2013, 08:06 PM
#26
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I had gone the FAST efi setup. I got the starting tune from another member. I set it up where the efi could richen the AFR by 25% if the O2 thought it was too lean and only lean out by 2%. In the beginning I had a friend drive the boat while I made changes to get close. Once I was close I would just run a log and then go back to and update. I had lots of help from other OSO members as I was trying to get the idle perfect.
I was having a problem one time and was able to talk to a fast engineer. He was great help and got me past my problem.
Would I do it over again? Hell yea!
I was having a problem one time and was able to talk to a fast engineer. He was great help and got me past my problem.
Would I do it over again? Hell yea!
03-19-2013, 08:56 PM
#27
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I say go for it 4bus. I don't know how much the Mefiburn is but I would look at what the cost difference to go with a different ECU system. Holley, Big Stuff, FAST or Megasquirt. Then you can always tune your new upgrades.
