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2021 Gen-3 Ford F-150 Raptor | Undercarriage Inspection | Weird Stuff Found
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<blockquote data-quote="ibismojo" data-source="post: 16724562" data-attributes="member: 10591"><p>Ford Performance lists the 7.3 at 580 without water pump, ac, alternator, starter, and the 5.2 sc at 536 with water pump, ac, alternator, starter.</p><p></p><p>However, you have to add in the front mount heat exchange for the air-to-water intercooler on the 5.2. That's gonna add weight: the heat exchanger, the tubing, plus the weight of the fluid needed to cool the charged air of the 5.2 in a vehicle that's significantly heavier vs its original application. The cooling capacity for the engine will probably need to be upped as well, adding weight for a larger radiator along with more coolant. Whatever weight savings you may have started out with over the 7.3 will most likely be negated.</p><p></p><p>As for engine development, there are companies out there that have started performance development of the 7.3 way before the TRX was officially released, one of which is lead by a former Ford 7.3 engineer, Brian Wolfe. It's easily pulling 780+ hp without boost (built bottom end, ported heads, high redline). Some idiot article-commenters were complaining the 7.3 doesn't rev enough....1, it can rev plenty. 2, revs have nothing to do with how well you could move a heavy vehicle....there's thing called gearing....also, ever watch the Audi diesel R10 move around Laguna Seca with a 5k redline? lol</p><p></p><p>I just can't see a 700+ hp 5.2 SC V8 being a good idea to move 5600 lbs under constant load. Going down the drag strip is one thing, moving around the desert not-slowly is something else.</p></blockquote><p></p>
[QUOTE="ibismojo, post: 16724562, member: 10591"] Ford Performance lists the 7.3 at 580 without water pump, ac, alternator, starter, and the 5.2 sc at 536 with water pump, ac, alternator, starter. However, you have to add in the front mount heat exchange for the air-to-water intercooler on the 5.2. That's gonna add weight: the heat exchanger, the tubing, plus the weight of the fluid needed to cool the charged air of the 5.2 in a vehicle that's significantly heavier vs its original application. The cooling capacity for the engine will probably need to be upped as well, adding weight for a larger radiator along with more coolant. Whatever weight savings you may have started out with over the 7.3 will most likely be negated. As for engine development, there are companies out there that have started performance development of the 7.3 way before the TRX was officially released, one of which is lead by a former Ford 7.3 engineer, Brian Wolfe. It's easily pulling 780+ hp without boost (built bottom end, ported heads, high redline). Some idiot article-commenters were complaining the 7.3 doesn't rev enough....1, it can rev plenty. 2, revs have nothing to do with how well you could move a heavy vehicle....there's thing called gearing....also, ever watch the Audi diesel R10 move around Laguna Seca with a 5k redline? lol I just can't see a 700+ hp 5.2 SC V8 being a good idea to move 5600 lbs under constant load. Going down the drag strip is one thing, moving around the desert not-slowly is something else. [/QUOTE]
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