I had said a month or so ago that I was going to test Acetone on the dyno using real flow meters and the EPA's USO6 drivers trace. I hope to get that this next weekend but if not it'll be the weekend after. I'd like to introduce to you the testing plan and see if you guys have any edits from there.
The testing runs will be:
- 2nd gear power pulls from 800-1200rpm to 6500rpm that is ~50rpm before fuel cut. Pulls will be made until the dyno pulls pretty much superimpose on each other(usually only takes about 3).
- 3 1/2 throttle power pull through the above band
- 3 0-60 acceleration pulls
- 3 0-60 1/2 throttle acceleration pulls
- 1 USO6 drivers trace (gasoline baseline will be done 3 times to get a margin of error)
Testing changes between runs:
- Used (Brand) plugs(~25k on them)
- New NGK Copper plugs
- New (Brand) plugs (gasoline baseline)
- 1oz Acetone per 10gal
- 2oz Acetone per 10gal
- 3oz Acetone per 10gal
- 4oz Acetone per 10gal
(The first two runs are for work comparative reasons and may not be posted)
ECU will be reset between runs and the engine WILL NOT be allowed to cool down. I'm going to run the tank dry(probably siphon at the pump) and fill with 15 gallons at the pump. I will be tracking usage from that pump to subtract how much I need to get the acetone concentrations I'll want.
From my experience, if you don't get any part-throttle power gains you don't get gains in fuel economy. I may forgo the part-throttle runs through everything as this is about 6-8 hours of testing as it stands. Part throttle runs also tell me what the engine will do with active timing advance. My PCM only adjusts timing from the default map at WOT if there is knock detected. It won't advance to the edge of knock.
Unfortunately, I won't be able to test straight gas with Acetone vs E10 with Acetone... Not enough time.
dkjones96 
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