Megasquirt tune files, request to post .msq files Options

[Rikyrat]

EGADS, tuning my megasquirt fi system, is driving me nervous.

If anybody has and would wiling to share tune files with me, I would be very appreciative. As that would allow me to compare it with mine

Thank you in advance

[Nogoodwithusernames]

Do you have the mega log viewer? I just recently started looking into it and I think I'm going to buy it as it seems hugely helpful to fine tuning once you have a base tune in place.

[JamesM]

Do you have the mega log viewer? I just recently started looking into it and I think I'm going to buy it as it seems hugely helpful to fine tuning once you have a base tune in place.

Full registered versions of both Turner Studio and Megalog viewer are more than worth the price and absolutely invaluable for tuning the car yourself.

[GregAmy]

Learning to tune your system is sort of a prerequisite for having custom EFI. (IMG:style_emoticons/default/biggrin.gif)

I'd instead call it a "benefit".

Full registered versions of both Turner Studio and Megalog viewer are more than worth the price and absolutely invaluable for tuning the car yourself.

(IMG:style_emoticons/default/agree.gif)

[mightyohm]

Learning to tune your system is sort of a prerequisite for having custom EFI. (IMG:style_emoticons/default/biggrin.gif)

I'd instead call it a "benefit".

Poor choice of words. It is a prerequisite for having a well tuned car, however. (IMG:style_emoticons/default/biggrin.gif)

[Rikyrat]

Learning to tune your system is sort of a prerequisite for having custom EFI. (IMG:style_emoticons/default/biggrin.gif)

I'd instead call it a "benefit".

Poor choice of words. It is a prerequisite for having a well tuned car, however. (IMG:style_emoticons/default/biggrin.gif)

Yes, I am using the base map that Mario created.
She starts right up maybe 2 seconds of cranking, and I have gotten her to idle smoothly, albeit a little high, and have gotten the ITB's balanced, as far as air is concerned at idle.

To lower the idle, do I change the ve table, in the range that map is displaying, or do i change the fuel table. That is a little confusing.

I purchased the upgrade to TunerStudio and mega log viewer, but still getting used to reading exactly what is going on.

She seems to be running ok, but the throttle response is not what I expected, it eventually gets there, but it takes a while. Maybe I am thinking of it the same as my bike that was dyno tuned with a dynojet computer, the throttle response, is crisp, all you have to is twist the throttle slightly and it is off to the races.

Maybe I am thinking about it in the wrong way.

Also, I am planning on creating a log to send to Mario, so he can look at it.
What should I do, do I find a place where I can go thru the gears to redline (almost),

[mightyohm]

Learning to tune your system is sort of a prerequisite for having custom EFI. (IMG:style_emoticons/default/biggrin.gif)

I'd instead call it a "benefit".

Poor choice of words. It is a prerequisite for having a well tuned car, however. (IMG:style_emoticons/default/biggrin.gif)

Yes, I am using the base map that Mario created.
She starts right up maybe 2 seconds of cranking, and I have gotten her to idle smoothly, albeit a little high, and have gotten the ITB's balanced, as far as air is concerned at idle.

To lower the idle, do I change the ve table, in the range that map is displaying, or do i change the fuel table. That is a little confusing.

I purchased the upgrade to TunerStudio and mega log viewer, but still getting used to reading exactly what is going on.

She seems to be running ok, but the throttle response is not what I expected, it eventually gets there, but it takes a while. Maybe I am thinking of it the same as my bike that was dyno tuned with a dynojet computer, the throttle response, is crisp, all you have to is twist the throttle slightly and it is off to the races.

Maybe I am thinking about it in the wrong way.

Also, I am planning on creating a log to send to Mario, so he can look at it.
What should I do, do I find a place where I can go thru the gears to redline (almost),

Tell us about your setup (maybe you've posted this elsewhere).
You say ITB's - which ones? How are you getting a vacuum signal?
Are you running alpha-N?

Check timing, because timing affects idle speed.

Once timing is set, if idle speed is not correct you need to adjust the air getting into the motor. How you do this depends on your setup. First, make sure air isn't getting into the system through leaks, warmup valves, etc. Then, set the ITBs. There might be air bleed screws - close those slightly. Or, you might need to adjust the stops for the butterflies. It depends on your setup.
Make sure the ITB's are balanced - this may require adjustments to the linkages, and you may need to readjust as you adjust the stops. You'll need a tuned ear or a synchrometer to make sure the ITBs are well balanced.

Once you have set air, check mixture - look at your wideband O2 gauge, either in your tuning software or maybe you have a physical gauge that you've added to the dash. Adjust fuel until you get the best idle. I'm used to working with the VE table because I have a MAP based system, but if you are running alpha-N it might be different.

You may need to go back and forth between air and fuel and advance a few times to sort of "walk" the motor into a good place in terms of idle speed and AFR. Target AFR depends on cam, ignition timing, etc so there isn't a specific target value, it is whatever the motor likes, but should probably be in the range of 12-14.7:1.

Fuel, air, spark - you have control over all of these things and it's a matter of finding what the motor likes at idle, gives best performance vs. load and is safe for the motor (not too rich, too lean, or too advanced).

I highly recommend an AFR gauge for the dash so you can keep an eye on things while you drive. It will tell you if you get into an unsafe/untuned area. You don't want to be driving around at full throttle and 18:1 AFR all the time.