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Did something interesting today - I had the dealer pull my performance
profile from the ETEC EMM just to see what it looked like and if it matched my impression of how I use the boat. Turns out, I was pretty close. The max engine RPM on the engine is 5308. Time at differing RPMs. 0-500 - 20.2% 500-1000 - 26.0% 1000-1500 - 14.2% 1500-2000 - 4.8% 2000-2500 - 1.7% 2500-3000 - 1.4% 3000-3500 - 3.8% 3500-4000 - 21.2% 4000-4500 - 3.9% 4500-5000 - 2.1% 5000-5500 - .9% I can narrow that down a little - 500-1000 rpm is trolling speed which is about 650 rpm - dead idle is 500 rpm. 1000-1500 rpm is actually time at 1200 rpm - time getting away from the ramp, no wake zones, launch and recovery. 3500 - 4000 rpm is cruise - depending on wate conditions - 32/35 mph. The rest is fairly transitory time and the occasional full throttle run. Comparing my fuel flow gage to the RPM chart, it turns out that the 500-1000 rpm scale doesn't even register - which means - well I don't know that that means because it's supposedly accurate to .2 gph. Averaging the fuel flow across the rpm band pretty much matched my jack lef observations - I was quite pleased. If you guys have EMM engine control, have 'em pull your profile - it's pretty interesting. |
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