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Message: [QUOTE="KCTurbos, post: 1351722, member: 13852"] I just towed over the weekend with my truck. I went and camped up on the Rim near young road if anyone knows the area. It is up about 7500ft in elevation. I was pulling about 12,000lbs. Fully loaded 28ft toy hauler, carrying gear for other trucks that were full, and a truck bed full of fire wood. Truck is a 2003 ccsb 4x4 with 205/30, KC68 stage 3, SPD race tune, with econo PHP ficm tune to pull back fuel. I had OD turned off when in tow/haul mode to help control my rpms. Flat ground I saw about 800-1000egts I could easily maintain 65-70mph going up even the steepest grades. Egts were about 1000-1250. Truck never even got close to being maxed out. I was usually only at about 40% load and throttle position... Truck always had plenty of power left over... but egts would go up above 1250 if I used it. I had to keep rpms above 2400 when pulling any sort of grade or my egts would start creeping up. This is what I usually saw going up the steepest grades. egts 1100-1250 boost - 20-25psi ebp - 20-25psi engine load - 40-45% throttle position - 40-45% coolant temp - 220 oil temp - 206 Not bad for a 68mm turbo and 205cc injectors IMO... while running a 550-600hp tune. On the way back I was a lot lighter after dumping all the firewood/water. I raced a buddy with a stock 6.0 running "tow tune" and he was pretty embarrassed when I pulled on him. He said it was because he spun his tires. PLEASE NOTE: I do not recommend towing on a race tune... I just wanted to try it and see what happened. [/QUOTE]

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