Quote:
Originally Posted by rotrex
If you have a wideband Lambda Sensor and a programmable ECU, I'd start
with a 50:50 mix right away. It requires less changes to ignition timing and
works over a wider range of AFRs.
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Yes, I have an LC-1 wideband in the car and it will be hooked up to the new
ECU to allow the auto-tune function to work on the fuel map. While I haven't
spent much time considering how to go about tuning the map above 100kPa
I do recall reading that 50/50 v/v was the easy way to mix methanol and
distilled water (deionised not readily available here).
I also recall that tuning with a 50/50 mix comes close to allowing the engine
to run a gasoline only ignition map ? Hopefully, that means I can use timing
from turbo (no WI) ignition maps as a a guide for my initial setup ?
One thing I have been wondering about, is how the WBO2 handles the mix
of methanol and gasoline ? Stoich for meth is 6.4 vs 14.7 for gasoline. So if
the target AFR in boost is 12.5 at a certain load, does the ECU just "ignore"
the presence of water and meth, and simply adjust the gasoline injection
to achieve the target AFR ? Sure makes life easy if it does
Cheers... jondee86