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Originally Posted by miketan
With all this so-called "vast amount" of knowledge on modular motors, why are you arguing for off-idle torque? Is that the only positive attribute you can muster up for the 5.4L? Oh yeah, I almost forgot. They're also good for S/C'ing. If the Endurance was S/C'ed, it'd still make more power. I was just using the Cobra R reference as an example of what could be done with the right heads and some rotating assembly upgrades. Sure, you'd have to spin it and undersquare motors like the 5.4L don't like to be rev'ed. However, you implied nothing could be gained from 4v heads on a 5.4L. Unfortunately, even with all your "vast" knowledge on mod motors, I proved you wrong. Carillo billet I-beam rods? Yadda yadda yadda. Maybe if Ford started spending some money on rotating assembly upgrades, they could get the performance up to competitive levels. With excuses like "it'll cost too much" and "they're only PU trucks", I feel like I'm talking to a Ford bean counter.
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I feel like I'm talking to an idiot. The off-idle torque came up because you suck at math and made an assumption...end of discussion on that subject. You have absolutely NO clue what you are talking about. You brought up the Cobra R because you thought you knew what you were talking about. I don't have to prove you wrong because you are doing a fine job of that yourself. I said there was LITTLE power to be gained on the 5.4's just by using the 4V heads as they are. That stands because I know the limitations of these engines, you attempted to bolster your logic with a car that used a hand built engine with top shelf engine parts. Your argument utterly failed at that point. Yeah...no problem just putting connecting rods in truck engines that cost $2,500+ per set....
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Originally Posted by miketan
There you go again with that reading comprehension problem. I'll say it again. GM keeps increasing the displacement on the LSX based truck engines to provide more useable torque in the powerband. People don't like to be reving up their 1/2 ton trucks to 5000rpm to get power. To put it simply, so hopefully even you can understand, this equates to more "area" under the curve. You don't have to rev a larger displacement engine as high to get useable torque. You can use less throttle input per gear to get the weight rolling .
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www.performancetrucks.net All the info to prove how little you know about LSx based engines used in the trucks.
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Originally Posted by miketan
The fact is there's not going to be a Nissan Titan as we know it when those big displacement modulars eventually come out. So, there won't be any 5.6L Endurance to compare unless you're talking about the next gen Armada/QX56. Those are supposed to be coming out with a revised 400hp/400tq Endurance powerplant. When the big modulars do come out for the F-150, you'll have to start formulating arguments against the newly revised DCX 5.7 Hemi that's going in the '09 Ram. That's what's going to be in the next Ram based Nissan 1/2 ton.
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Sucks for ya'll I guess. Doesn't change the fact Ford is still building that engine which will take car of the only real shortcoming the 5.4's have.
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Originally Posted by miketan
You weren't mentioning TQ management or spark timing. You were talking about "breathing through a straw" intakes and "restrictive" exhaust systems. Everybody and their uncle knows about the immense TQ management GM has on those engines. Tell us something we don't know. However, even with a tune, a 5.3L is still slower than a stock untuned Titan so who cares.
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You've never dealt with a properly tuned 5.3L GM truck.
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Originally Posted by miketan
If so, then you should be "defending" the 5.6L Endurance as well. The Titan is detuned from the factory just like the others so why not talk up virtues of the Titan? The reason I'm so heavily biased towards the Titan, as you aptly put it, is because this is a Nissan "Titan" site. It's not called F-150 talk. It's not called GM truck talk. It's not called Dodge Ram talk. It's called Titan Talk. Of course I'm going to be pro Titan and pro 5.6L Endurance. It may be the war stories section, but it's still a Titan site last time I checked.
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Piss poor excuse for you making assumptions. I own a Ford yet I still don't have a problem learning as much as I can about other brands and do so with an objective mindset.