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rescaled tables megasquirt

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Old May 17, 2022 | 06:20 AM
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Default rescaled tables megasquirt

hello all, i am new posting here and not brilliant with technology so please go easy. I've been looking around for a basemap for a turbo 1.6 but had no luck so decided instead to rescale my tables using what i could find on other threads. I will be getting a professional to tune but the car needs to be safey drivable to get there, if someone could take a look at my afr and ignition tables to see if theyre safe it would be appreciated.
thanks
jim



Old May 17, 2022 | 08:33 AM
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AFR table looks fine.

Timing looks pretty conservative both in and out of boost. It won't make big power but it's safe until you get it to the tuner. You could stand to add a couple of degrees in the cruise area though (30-55kpa, 3000-4000 rpm) most basemaps are in the ~30-35 degree range there. Again, it's safe the way it is though.
Old May 17, 2022 | 12:27 PM
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totally fine to drive to the tuner
Old May 17, 2022 | 12:32 PM
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Looking good to me.

Since you seem to have a good idea of what your wideband should look like, verify timing is set correctly and that you're wideband matches tunerstudio. If it does, take a ~5 min datalog just driving around, take it easy so you can get an idea how close the base map is. Open the log in Megalogviewer and run the analysis on your datalog. Review what changes the software is suggesting (make sure it's trying to pull fuel where you're rich, and add fuel where you're lean), and extrapolate any obvious issues to parts of the fuel map you haven't gotten into yet. The first couple datalogs you're feeling things out; aggressively add fuel where lean, conservatively pull fuel where you're rich.

Repeat that process a few times, with each drive the fuel map should get closer and you can gradually go more aggressive with your driving. After a few quick drives and tweaks to the tune you should be able to safely take the car to redline. This gets you comfortable with "tuning" but more importantly, lets you test the car out a little bit. If you go straight to the tuner, you'll find out it's overheating, overboosting, got spark blowout, running out of fuel, clutch is slipping, etc, etc... You're a lot better off if you go ahead and resolve those potential issues before its strapped to a dyno. Good luck and enjoy!
Old May 17, 2022 | 05:13 PM
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lovely, thanks for the advice all of you
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