Wanderlust (Also, accepting trims will guarantee that, over time, Autotune will starve your engine for fuel by continually reducing map values for a given RPM.)
Bud (It took awhile for me to eventually determine that the acceptance of trims will indeed lead to an engine running too lean.)
Not arguing,just trying to learn. By what experience or process did you each come to this conclusion? Thanks for the help.
Fortunately no throat cancer in my story (and glad to hear that Bud pulled through ok), just a desire to squeeze as much power out of the bike as possible. As a newbie to the PCV/Autotune setup, I accepted "trims" because I thought it would make the bike perform better. In reading thread after thread on the topic, I also bumped the AFR setting up much higher than the initial setup value of 13.2 to well over 14. To further complicate things, I substituted the stock throttle bodies with those lifted from a 2006 ZX14. Both TB's had their flies removed.
I noticed that the more I accepted "trims", I quickly reached a level of diminished returns on fuel economy while performance suffered. So one day I just reloaded the original setup map (saved a copy fortunately) with AFR at 13.2 and have not accepted trims since. I experimented with swapping this map out (via LCD-200) with the "trimmed" map and found that there was no appreciable difference in fuel economy, but a big difference in performance - and the leaned map also came with the problem of exhaust popping on deceleration. Since then I have remained on the original map.
Setup is PCV/Autotune/LCD-200 with ZX14 TB, flies out, Muzzys dual exhaust (with no cat) and K&N filter. No turbo...yet.
Meanwhile I have also read the religious/theological debate on PCV vs ECM flashing quite a bit, and have decided to retain the PCV and not bother with reflashing.
For a gross comparison of fuel economy, on the stock setup with a passenger I hit reserve at 250kms; these days I don't hit reserve until at least 310kms, usually more like 330kms+ when riding highway without "romping" it. As for performance, I gained a sh*t ton of HP compared to stock. And the sound of the dual Muzzys is great.
-Wanderlust
