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Message: [QUOTE="Peroni, post: 1561606, member: 315"] Helping to build an all around farm/tow vehicle. It's a 2000 F350 that has 4.10 gearing, locally built 4R100, reg return, Tymar intake, 200/30% hybrids, SXE 364.5 w/ 80mm turbine and .91 housing, and a Hydra with Jelibuilt tuning. That's how the truck was purchased. With a hot street tune the truck is just meh. It runs and drives okay, stab the throttle and it will leave a haze. Can't seem to built more than 20psi and egt's seem higher than they should be. A tow tune actually wakes up the turbo a bit better and is cleaner. Still seems to hit a wall around 25psi while egt's keep climbing. Tows somewhat decent as long as the revs are kept north of 2000rpm but still gets too hot on long grades. I've checked for boost and exhaust leaks and there are none. Tried a couple tunes from other vendors with very similar results. I think it's the large turbine along with not having enough fuel to really get it going. I've done some reading around the net and the SXE 363/68 seems to have done really well on a few mildly built 7.3's, both with the .91 and .83 housing. This truck is going to be a daily driver along with hauling hay and horses/mules all around the mid Atlantic. For the owner's driving style something that will give good performance between 1500 and 2500rpm would be ideal. With the 200/30 hybrids would a 363/68/.91 or .83 get us there? They're willing to spend the money and Black Friday deals do make a whole new turbo a bit more attractive. [/QUOTE]

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