I have been fighting the tuning battle with this car for too long. Any help would be great. I believe all of my ignition settings are correct. My idle is awful and I really think I got a awful tune from the microsquirt factory. I got it to idle great for awhile at one point but the car would not drive at all wihout intake backfiring. My AFR seems to be all over the place. I cant get timing stable. I really dont have the money to pay someone online 500 dollars to tune it. Car hasnt been running in a few years. THe car has a stage three trickflow. Attached is the data log of the car running when at operating temps. As well as my piss poor tune that I have loaded onto it. Thanks again
93 5.0 Microsquirt with Stage 3 trickflow tuning issues
- Thread starter marxpreston11
- Start date
Tune is a mess. The AFR table it too lean, and your VE table is not smooth. You have high numbers next to low numbers. That's going to swing your AFR wildly. You also do not have EGO correction turned on, so the EGO won't make any adjustments.
I made some changes. I added a bunch of fuel and tried to smooth it out a bit. Also, richened up your AFR table as it was way too lean. Also fattened up your warmup-enrichment, and your after start enrichment. Turned on your EGO correction to 10% starting at Coolant temp 170 degrees.
I can't tell if this will work for you but it should be a bit richer and smoother. You are going to have to adjust the VE cells where your engine idles at (once it's fully warmed up). Basically if your idle is hunting you want to raise and lower the VE numbers a tad to try and smooth that out. You might have to play a bit with what AFR it likes to idle at. For example, i idle my engine at 14.0 and play with the VE cells to keep it smooth right around that AFR. Any leaner and it makes it unstable. If your cam is pretty rowdy you will likely need it a bit richer at idle as well.
But you are going to need to find a tuner, or need to really know how to make adjustments. DO you have the paid version of TS with VE analyze? Once you get the idle set you will want to tune your WUE and then start to drive around and make adjustments to the VE table.
There's a lot of other stuff to go through as well. I'm not a tuner, so I didn't spend a whole lot of time refining this as i couldn't really check your log file. For some reason you don't have AFR as a logged profile and I can't seem to see why? I have MS3, so there are some differences with what i'm used to vs megasquirt.
You can do a "compare tunes" and see the changes i made and compare to your tune. I just drafted up that VE table based on some educated guesses, but it won't be perfect, so don't fire it up and start romping on it. It will need work
I made some changes. I added a bunch of fuel and tried to smooth it out a bit. Also, richened up your AFR table as it was way too lean. Also fattened up your warmup-enrichment, and your after start enrichment. Turned on your EGO correction to 10% starting at Coolant temp 170 degrees.
I can't tell if this will work for you but it should be a bit richer and smoother. You are going to have to adjust the VE cells where your engine idles at (once it's fully warmed up). Basically if your idle is hunting you want to raise and lower the VE numbers a tad to try and smooth that out. You might have to play a bit with what AFR it likes to idle at. For example, i idle my engine at 14.0 and play with the VE cells to keep it smooth right around that AFR. Any leaner and it makes it unstable. If your cam is pretty rowdy you will likely need it a bit richer at idle as well.
But you are going to need to find a tuner, or need to really know how to make adjustments. DO you have the paid version of TS with VE analyze? Once you get the idle set you will want to tune your WUE and then start to drive around and make adjustments to the VE table.
There's a lot of other stuff to go through as well. I'm not a tuner, so I didn't spend a whole lot of time refining this as i couldn't really check your log file. For some reason you don't have AFR as a logged profile and I can't seem to see why? I have MS3, so there are some differences with what i'm used to vs megasquirt.
You can do a "compare tunes" and see the changes i made and compare to your tune. I just drafted up that VE table based on some educated guesses, but it won't be perfect, so don't fire it up and start romping on it. It will need work
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