Adding Nitrous

[junits15]

Just asking for knowledge only. With the direct injection would a water/methanol injection work to lower IET and fuel octane needs. If so where in the intake would you introduce this mix?

sadly the WMI doesn't seem to work NA which was my experiment, I believe that you'd have really great luck with a boosted application.

Its not that it doesn't work per say, its just that you need to inject a lot of water to get the benefits on this motor (while NA). There is a very fine line between injecting so much water that you misfire and injecting enough to suppress knock.

For what its worth I removed my WMI setup from the mustang, to transfer it over to my mini where it will be much better utilized. On the mustang I went with a flex fuel setup using PCMtech, which fit my needs alot better.

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[Rolls]

sadly the WMI doesn't seem to work NA which was my experiment, I believe that you'd have really great luck with a boosted application.

Its not that it doesn't work per say, its just that you need to inject a lot of water to get the benefits on this motor (while NA). There is a very fine line between injecting so much water that you misfire and injecting enough to suppress knock.

For what its worth I removed my WMI setup from the mustang, to transfer it over to my mini where it will be much better utilized. On the mustang I went with a flex fuel setup using PCMtech, which fit my needs alot better.

Running E40/E50 blends is a nice compromise on an NA. You max out around E60/E70 I believe (I'm not a tuner) on a stock Gen 3 motor.

You could also use the flex fuel system for WMI, eg have a tune for WMI, or even use the flex fuel sensor itself to detect an empty tank. Ethanol will read a realistic value, an empty cavitating line will read E1000+ (essentially pegging the sensor) which you could set up to trigger a fail safe tune/DTC (eg set something that is in normal range our of range) causing it to go into limp mode.

Might as well just run E85 though in this case , however you could likely integrate nitrous somehow using a flow meter and some wizardry here so it automatically switches/interpolates the tunes correctly.

Plenty of people in Australia have done this with WMI and other interesting combinations. Eg IMRC delete and use the IMRC feedback to adjust the tune to suit (Effectively a free digital input that can toggle "tunes").

This is for a Falcon however the same principles could be used on the Mustang.
https://forum.pcmtec.com/topic/849-howto-nitrouswater-meth-controller-with-fail-safe-multiple-tunes/