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xsnapshot · 10-11-2008, 12:25 AM

So using AccessTuner i opened up two maps.
1. 91 octane stage 2
2. Economy mode for 91 octane stock injectors

I looked at Fuel tables and Primary Ignition tables and im not impressed. This map does not seem to really offer any gains.

Between loads of .58 and 1.44 (which you would usually be in daily driving and not pushing hard aka trying to get good MPG) fuel tables are the same (until 5kRPM+). Depending on where your at in the load columns, ignition advance is between ~4 degrees advanced in a very few spots, the same in most, and less in others.

I tested these two maps out on an hour long fairly flat highway trip on Thursday night. With cobbs economy map i saw ZERO difference in MPG. I was cruising at 75mph @ ~2800 RPM. Ambient temps 50 degrees F.

My question is where is their claimed gain in efficiency coming from?

EDIT: i used 92 octane gas (no ethanol) just to make sure both maps were easily able to run to their full potential.

10-11-2008, 12:25 AM	#1 (permalink)
xsnapshot Registered User Join Date: Jan 2008 Location: Nebraska Posts: 348	Cobbs AP economy map????? So using AccessTuner i opened up two maps. 1. 91 octane stage 2 2. Economy mode for 91 octane stock injectors I looked at Fuel tables and Primary Ignition tables and im not impressed. This map does not seem to really offer any gains. Between loads of .58 and 1.44 (which you would usually be in daily driving and not pushing hard aka trying to get good MPG) fuel tables are the same (until 5kRPM+). Depending on where your at in the load columns, ignition advance is between ~4 degrees advanced in a very few spots, the same in most, and less in others. I tested these two maps out on an hour long fairly flat highway trip on Thursday night. With cobbs economy map i saw ZERO difference in MPG. I was cruising at 75mph @ ~2800 RPM. Ambient temps 50 degrees F. My question is where is their claimed gain in efficiency coming from? EDIT: i used 92 octane gas (no ethanol) just to make sure both maps were easily able to run to their full potential.