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OMG you people are so clueless . How many of you have seen a 5.4 V8 tow a heavy TT better than a 7.3 PSD ? If HP was king then they would put the 500HP V10 from the Dodge SRT-10 pickup in an 80,000 lb 18 wheeler and climb I-70 west of Denver as good as a 500HP diesel with 1650 ft lbs tq.

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However, The point dealt with max load without exceeding the GVWR. Since you call it BS, I'll trade trucks and make the same point.

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No-one in the forum has said the gas will "tow better" than the diesel.

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Joe, how can a question be incorrect? I posed a legitimate question in that thread and if you care to read the last post, you will find a pretty good summary: there's more to establishing a tow rating than just engine output. And, whether you like it or not, the 500 HP V10 will pull the 80,000 lb load up any hill exactly the same as the 500 HP diesel if it is geared correctly. Check out aquaduct's Cat C12 vs Cobra engine comparison that I mention in a post above.

Bert

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So 1650 ft lb tq will do no better than 500 ft lb tq towing 80,000 lbs up a hill ? Yeah right.

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The point was GVWR not max load without exceeding the GVWR.

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BERT SAID: In another thread (seems like years ago ), I asked what would make a better tow vehiicle a Dodge QC 4X4 2500 with a CTD or a Hemi. The problem here is that we are using the very subjective term "better". I pointed out that I test drove a 2003 Dodge 2500 QC 4X4 CTD SO 5 spd and, because of its empty weight, my 5er would put it over its GVWR. However, the exact same truck with a Hemi would be fine as far as GVWR is concerned. So, which engine is the better one here? Sice I would be illegal if I bought the CTD, then the Hemi would be better in this case.

PSD SAID: A small block gasser will tow a 5th wheel TT better than a Cummins Diesel .(eyes roll for the millionth time)


BERT SAID: Try rereading my post, Joe. I didn't say that the Hemi would tow better than the CTD. I said that my 5er would put the CTD engined truck over its GVWR making it illegal to take on the highway. The same truck with a Hemi would not be over the GVWR and would be legal. So, which truck would be "better"? If you include "legal" in your definition of "better", then the Hemi would be "better".

Bert

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PSD SAID: I guess you can't take a 4x4 F250 weighing 8,900 lbs with a 8,800 lb GVWR sticker and LT265/75R16E tires on the highway but you can take a 3500 Chevy 15 passenger Express Van weighing 9,600 lbs with a 9,600 lb GVWR sticker and LT245/7516E tires with 1,200 lb less capacity than the 265's on the F250 .

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As far as the comment about the 5.4 vrs the Diesel - 235 horsepower is enough to move 18,000 (10K trailer and 8K truck) pounds up a a 6% grade at 60 mph. So, if I'm only going up this grade once or twice a month and the rest of the time I'm driving the truck the rest of the time to work and through drive thru banks and restaurants, give me the gas truck. I'll put it in 3rd gear (I like 5 speed manuals) and I'll scream up the hill. I'd rather have the engine scream a few times per month than have to listen to it clatter every day and have to shut it off to order my kid's McNuggets (like many diesel guys do).

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Second, I agree that if you had to make those climbs once or twice a year that a gas engine will be adequate.

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First, I call BS. My 260 HP 350 lbs-ft 5.4 could barely maintain 35 towing 7100lbs up Towne Pass leaving from Stovepipe Wells in Death Valley. The hill was 6 to 8% for 12 miles. I pulled out so an older PS pre-1999 could pass me while he was towing a much heavier rig than mine. Was I upset with my truck? No!! It performed better than I ever imagined it would pulling that kind of weight. You can always tell when people are dealing in theory vs exerience.

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Second, I agree that if you had to make those climbs once or twice a year that a gas engine will be adequate. But come hang out in my neck of the woods. I've got Cajon (5 miles @ 6%), the Grapevine (7 miles @ 6%), Banning pass, Baker grade, and some unnamed climbs (as far as I know) to the south. Now for the most part on Cajon and the Grapevine 50 was about it with my 5.4. Put my foot into it, and no accelration, and that was towing 7100lbs, or a GCW of 12,900lbs. So, I can tell you that there is no way that you are going to pull the hill as well with the two engines I listed earlier.

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Again, this if it were geared properly IS NOT valid as we have what Ford, GM, and Dodge offer and that is IT. Living in the real world, I will take the diesel over the 5.4 anyday. One last thing, a 1999 F350 with a PSD has a 20,000 GCWR, why does a 5.4 not? Same HP, same transmission, same brakes and same axles on the SRW. So while you could put 600lbs more in the truck, I could tow 4400lbs more. There is no way a 5.4 would be towing a a 5er with a pin weight of 2900lbs as that would be a 14,500lbs 5er. I guess I should have bought an F350 with a 5.4 engine because I could then tow a Teton.

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Again, Sack I know I am comparing diesel to small block. I know that an 8.1 is almost as capable as the Duramax. I say almost as the just recently added anothe 3K to the GCWR of the Duramax. If my F350 wasn't a daily driver I would have considered the 8.1 as it is the best dang Gasser out there.

Tom

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Why do people think that a big block is a special form of a gasser and that a small block is somehow inferior?