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Power Strokes
6.0 Tech
Tune = 15-20% drop in fuel mileage
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[QUOTE="Cold Roller, post: 652742, member: 9551"] I put on the canned SCT perf tune for this run. I was curious to see what it would give me. It ran slightly warmer EGT (30*) than the extreme tune due to vane position (boost) and retarded injection. But I can't complain based on the result. Lately I have been running Wildman's extreme or an old Spartan tune. FWIW - my 2 cents - most of the tuners don't know how to build a tune for cold weather running. I found that the injection would be way too advanced until the outside air temp got above 20*. No one needs 14*BTDC on a cold engine and 0* or colder at start-up. Often, the truck would start and quit on the first try after a few seconds of running. If you had a mild or no tune on (injection at 2*ATDC - 6*BTDC), it would fire up cold every time and have consistent injection timing while driving. With the high HP tunes I would see anywhere from 4* BTDC to 11*BTDC at the same speed and location, the only difference being outside air temperature. For you guys living in the mid to southern states, this isn't even an issue. Where do most of the tuners live... [/QUOTE]
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Power Strokes
6.0 Tech
Tune = 15-20% drop in fuel mileage
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