Wonder who wins.http://www.diesel-central.com/Video.../IRP/Hookin.mpg
yes I know its a 7.3

 

I had a V10, 5.4, 351H.O,351 Cleveland, 302FI,3.0 Duratec and drove 7.3's all year long and none of them compare to the power and torque of the Cummins 5.9 H.O. common rail diesel I own now. I like the Cummins so much I just bought a '97 F800 with a mechanical 12 valve engine just so I could Have a Cummins in a Ford ! Well not really just for the engine, but it was a great bonus! Ford will eventually offer the Cummins in a standard pick up so you you don't have to by a f550 to get it (if they see the light(:

 

yeah I love the torque on the cummins and the sound

 

I have a poll going in the general form on what diesel would like to see in there truck. As of now the nav. V8 seems to be winning. As for me I would like to see ford put in I6 so for dcan have some torque down low.

 

cool video. i wonder what mods the cummins had opposed to the navistar? there's no replacement for displacement, so the 7.3 should win all things being equal. interesting at any rate.

 

The 7.3 is actually a smaller engine than the 5.9 Cummins.
The 7.3 makes awesome torque down low, so dont give me this crap about the 7.3 not being able to handle as a much as the cummins.

 

The 7.3 is actually a smaller engine than the 5.9 Cummins.
???
Curious how you got that?

Also

Quote:

there's no replacement for displacement

Technically speaking, with these diesels there is.
Just up the allowable boost, and increase the fuel.

I can imagine most 7.3l owners that have had a 6.0l fly past them will tell you that there are more things than just displacement to make more power.

 

Well , I have to admit when my 6.0 PSD was running right ,it would blow the doors off any STOCK 7.3 PSD but IMO the 7.3 is more reliable and will prove out to be a longer lasting motor. It is pretty grim when you have a motor that will soot up the EGR valve unless you become an emmisions criminal and unplug the frikken thing.
The last flash I had done on my 6.0 PSD made the exhaust even smellier than my 7.3 PSDs. One of the reasons I went for the 6.0 was the fact it had no Diesel smell at idle and my wife is a person that can not take the diesel exhaust smell so when I brought it home after the last 7 days in the shop, she said get rid of that thing, I was only too happy to oblige. I hope Ford made some changes in their Diesel Management team and the next generation ( 6.4 PSD ) will be put out when it is fully developed and not let the first buyers become the test group as was the case with the early 6.0s
To get back to the original topic on this thread , I like the Cummins a lot and agree that if it is good enough for the Ford F550 , than it should be offered in the F250 and F350 lines as well.

 

The 7.3 is NOT smaller than the 5.9 Cummins. Look here:

Conversion from Liters to cubic inches = X x 61

5.9 x 61 = 360

7.3 x 61 = 445

The 7.3 is clearly the larger engine. I am having trouble understanding how you came to that conclusion. Its easy enough to tell which is bigger without even converting the emasurements. 7.3 is greater than 5.9.


Best as always.

 

Yah musclecar is right. Although the Cummins has lots off torque because off its inline 6. I believe this new6.4 will really be powerful an less problematic then the 6.0. If thats the case Fords market share could exceed 75%. Everybody knows Ford has the best truck out there and if the new engine has the relaibility off the old 7.3. Goodbye Dodge an Chevy. Hello Ford.

 

I guess I had that coming. Yes, 7.3L displacement is more than 5.9L displacement...that's a no brainer. The actual size of the engines is different. If you have ever seen a cummins out of the engine bay, and a 7.3 out, you'll see what I'm talking about. The size difference is minimal, but it is noticeable.

 

I do see what you're saying now. I have seen the same thing when looking at classic cars. Maybe its my eyes playing tricks on me, but in the engine bay the 426 Hemi looks alot bigger than a 440. Yet the 440 is considerably larger in displacement. Maybe its that huge air filter throwing me off.


Best as always.

 

The cummins weighs more. So there is more metal there.

 

Hey all, don't take this wrong because I love my Fords, but the Cummings is a much more solid & stable engine IMO compared to the other two major types out there (powerstroke & duramax). I own a Dodge 3500 24 V Cummings Turbo Diesel that I use for work (heavy hauling, etc). Dodge did do right in partnering with Cummings for the use of their engines in their vehicles. After all, they are used in some of the most rigorous applications out there. Don't take all this wrong, I am not saying that the other two engines aren't good, that Fords aren't good or anything to that effect, but I do believe that they (cummings) are the most durable. As someone mentioned above, if you look at the 5.9L cummings compared to the others, it is huge, especially when you consider that the displacement is much smaller. Take a look at side by side pictures of the stock pistons, connecting rods, crank, etc. The cummings are just plain massive. This means stronger. There are photos available of the above out there in cyberspace, and I encourage everyone to take a look. Also, as noted, the 6 cylinder gets tons of low end torque, and because it is a 6, there are about 30% fewer moving parts than a V8. This is another reason why straight 6s are so common with diesel engine manufacturers (look at tractor trailers, semis, etc). I'm sold on them, and as mentioned above, you can get Cummings in the Fords, but only in the larger industrial grades (I thought it was 450 and up, but someone mentioned 550). That says a lot. Again, I'm not bashing or saying that the other motors aren't good, I just believe that the cummings are more sturdy and for business purposes, I have to be very analytical and can't think emotionally.

 

The Cummins is only available in F650's and F750's to the best of my knowledge.