Has anyone else fine tuned a fitech for efficiency?

[ShagWagon]

I changed the cruise one to 15.5

I’ll fill my tank tomorrow and will report next fill up after that in a week or so if it helped.

[babywag]

Just be sure to check plugs after a cruise type run
to ensure not too lean for your engine.

every engine is a little different what works for one won't always work for another.
i cannot run the same tune on my 90 as what's on the 88.

[ShagWagon]

Just be sure to check plugs after a cruise type run
to ensure not too lean for your engine.

every engine is a little different what works for one won't always work for another.
i cannot run the same tune on my 90 as what's on the 88.

What do I check for if they

What do I check for if they’re already carboned up? White burn?

Also I gapped my plugs at .50 because I read that you could after the ignition upgrade I did. Would that make any helpful or hindering difference here?

[babywag]

I sure would not run a .050 gap on one of these.
Have always run .035 regardless of ignition or fueling upgrades.
just my opinion

google has decent pics of too lean plugs

[ShagWagon]

I sure would not run a .050 gap on one of these.
Have always run .035 regardless of ignition or fueling upgrades.
just my opinion

google has decent pics of too lean plugs

I sure would not run a .050 gap on one of these.
Have always run .035 regardless of ignition or fueling upgrades.
just my opinion

google has decent pics of too lean plugs

I had read that it makes a bigger spark therefore, making all the fuel burn better or something. Its been a year and half so I don’t remember exactly why I did it. I was just wondering if it was snake oil about all that, and if it could possibly have anything to do with efficiency because it’s not a normal setting for a plug gap.

I’ll see what this tank does with the higher afr settings first. Then I will change the gaps back to 35-37? and put a new plug in #1 and run it for a hundred or so and see if I can get a better reading rather than use a carboned up already plug.

[Crankyolman]

I got gas today so was able to check my mileage. 9.0 MPG which is pretty much what it was getting before fuel injection. I haven't made any changes to any settings besides PWM and prime shots but I guess it's now time to start trying to understand what settings I need to change to try to get a little better mileage.

[Crankyolman]

I thought I would update this since I got gas again Yesterday. A few days after getting gas last time I made a few adjustments to AFR. I didn't get too radical because I was worried about getting too lean but gas mileage has improved a little bit to 9.5 MPG. I think that's still far too low but there are things I still need to do to see if I can get some improvement.