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1/2 ton V8 Cummins?

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Old 01-11-2009 | 11:28 PM
  #46  
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When the price of the 1/2 ton is almost as much as the 3/4 why not get the 3/4? You know they are going to scimp on HD parts in the light trucks so all that power is going to tear stuff up, and then it the internet will be full of those guys bashing the truck because its a POS. Besides, the mileage isn't that good on these trucks, and we wont know the dependability of them for a lot of years. I think they should have went with a 6cly or even a 4cyl in them. Then I would have been interested in one. Guess I will just have to build one the way I want it and know I got a good deal.
DS79
Old 01-12-2009 | 10:37 AM
  #47  
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Originally Posted by duratothemax
they arent clones. First of all the Isuzu inline 6 (6BD1T) is 5.78 liters If im not mistaken, and has a much lower compression ratio than the cummins ISB/6BT.
Old 01-12-2009 | 01:39 PM
  #48  
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Originally Posted by deerslayer1979
When the price of the 1/2 ton is almost as much as the 3/4 why not get the 3/4? ...
Agreed. If you want a low-rider, V-8 diesel powered 1/2 ton just go buy a Siverado 2500.
Old 01-12-2009 | 07:21 PM
  #49  
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Originally Posted by SOhappy
Agreed. If you want a low-rider, V-8 diesel powered 1/2 ton just go buy a Siverado 2500.
That is funny, and oh so true.
DS79
Old 01-13-2009 | 03:08 PM
  #50  
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Originally Posted by SOhappy
Agreed. If you want a low-rider, V-8 diesel powered 1/2 ton just go buy a Siverado 2500.
Oh my
Old 01-14-2009 | 12:19 PM
  #51  
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From: CT
Originally Posted by RobG
GM is run by idiots. How many million did they waste in putting a little "GM" emblem on all their cars? Morons. GM couldn't build a car people wanted if their life depended on it, because of all the committees. They're as bad as the gov't.

Chrysler does make a very good car, at least anything made since around 2002-03 or so. Quality-wise I'd say they're ahead of GM.

As much as I hate Ford, they're the one company seems to have a clue with regard to what the people want. If Chrysler goes under, I bet Ford will do anything it can to get the Cummins contract, and then GM won't have a chance. GM is too stupid -- they will have the audacity to think the Duramax is the chit. Ford knows better -- look at all the trouble they've had trying to have a good diesel. The 7.3 was the last decent diesel they had, and that still wasn't saying much compared to a Cummins.

I do have to wonder when the marketing departments need to wise up. The 4.5L Cummins in a half-ton would be ideal. Screw what people "think" -- once they see the results, I think they would be swayed. Heck they already know you don't need a V8 in a passenger car. 4-bangers can do just as well providing power AND good economy.

*sigh*

Rob
The 4.5 cummins isnt even out yet, and people already think its gonna be gods given gift to the diesel world? Just because it has the almighty C on it it will come onto this earth more blessed and more destined to success than any other diesel that says isuzu, navistar, perkins, mercedes, etc..

GM has a right to be proud of the duramax. For the most part it has proven to be a more or less successful and reliable engine (not counting injectors). THey must have done something right because It was the only engine of the big three that lived through 3 emissions changes without need for significant redesign. (PSD had to go from the 7.3 to the 6.0 and 6.4, cummins had to go from the VP44 to the CR to the 6.7)

I think thats the funniest/stupidest thing in the world when all you guys do is bash and dump on the V8 diesels, aluminum heads, etc... then suddenly cummins drops the bomb that they are coming out with a light duty V8 aluminum-headed diesel and now suddenly "its all ok".

ben
Old 01-14-2009 | 01:07 PM
  #52  
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^^^^ I never said that it was "ok" to have a v8 cummins. In my first post you will see that I said that they should have gone with the 4bt. Yes i would drive one as a toy, but I would still rather have a 4bt. I don't agree with your redesign speech. Cummins pretty much as stayed the same from 12v, 24v and 5.9 CR. Sure they changed the injection style but I don't count that as a redesign, just like I don't think that the duramax has been redesigned from the LB7 to the LMM( I think that's the new one, right) it has just been improved with the new technolagy. And yes cummins had to redesign for the 6.7 but the reason they bumped up the displacement was to make more power. The reason it needs more power is from the emmisions crap. I respect the duramax, heck even my girlfriend has an 01 duramax with 60,000 miles on it, but I prefer the grunt of a in-line.
Old 01-14-2009 | 02:20 PM
  #53  
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Originally Posted by duratothemax
The 4.5 cummins isnt even out yet, and people already think its gonna be gods given gift to the diesel world? Just because it has the almighty C on it it will come onto this earth more blessed and more destined to success than any other diesel that says isuzu, navistar, perkins, mercedes, etc..

GM has a right to be proud of the duramax. For the most part it has proven to be a more or less successful and reliable engine (not counting injectors). THey must have done something right because It was the only engine of the big three that lived through 3 emissions changes without need for significant redesign. (PSD had to go from the 7.3 to the 6.0 and 6.4, cummins had to go from the VP44 to the CR to the 6.7)

I think thats the funniest/stupidest thing in the world when all you guys do is bash and dump on the V8 diesels, aluminum heads, etc... then suddenly cummins drops the bomb that they are coming out with a light duty V8 aluminum-headed diesel and now suddenly "its all ok".

ben
The vast majority of the people on this thread have stated that they would much rather have a 4 cylinder Cummins.

Another thing about the aluminium heads. The V-8 Cummins will only be available in a 1/2 ton model correct? How many owners of a 1/2 ton truck would work it as hard as a 3/4 or 1 ton truck? That may be the reason Cummins went with the aluminium heads. Just a thought.

I don't think anyone has said GM shouldn't be pround of the Duramax. No one in here will deny that it is a powerful engine, and they can be made fast, pretty easy. I would love to have a DMax, but would never give up my Cummins for one.
Old 01-14-2009 | 06:32 PM
  #54  
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Ford has really been the only one to do a complete ground up redesign twice and has another new engine coming soon, correct? The Cummins has been updated here and there throughout the years. Also, isn't the 6.7 40% of a 5.9 or something like that?

I'll give it to the Dmax, if I was going to have a V8 diesel the Duramax would be it.
Old 01-14-2009 | 06:46 PM
  #55  
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no one has really answered or talked about the other half of my post and that is where I wanted this thread to lead to. I agree with most in the fact that it would be better with a 4bt, but let's put that aside now and talk about where you could take this v8 to hp wise. Duratothemax, you out of most should be able to give some kind of an idea, since this will be like what you are running. If you still want to keep talking about the other issues that's fine too, I want everyones opinion on all topics of this motor
Old 01-14-2009 | 07:27 PM
  #56  
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The only thing holding back the new V8 cummins is the ECM; if it can be cracked it should be no harder to make it wind up and scream like a duramax. The main reason the duramax is so easy is its a decent design, and is setup well from the factory to get to 500rwhp cheaply, which is the general benchmark that most guys with daily driver pickup trucks shoot for. The other main reason is the dmax ECM is basically an off the shelf Delphi ECM from the existing GM parts bin, so the knowledge to crack it was already in place and ready to be taken advantage of by custom tuning companies like EFILive.

With the new piezo injectors, higher rail pressures, and cummins R&D behind it I see no reason why it wont be a good engine. As long as the bottom end holds up, it should be a fun engine to hot rod. Seeing as it was destined for a half ton application it might not be as strong as the duramax bottom end (which Ill admit in itself isnt all that strong, the 01-05's give out after prolonged abuse at around 550-575rwhp and the 06+ ones give out around 650), but then again its going in a lighter vehicle too...so who knows. It will be very interesting to see how it plays out.

ben
Old 01-14-2009 | 07:51 PM
  #57  
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I think this V8 might be interesting, I mean 24 valve cummins worked and that was new, Mac used a V8 in a few of their trucks and what a horse, make the hair on your arms stand up!
Old 01-24-2009 | 12:52 AM
  #58  
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4 cylinder

Originally Posted by deerslayer1979
........I think they should have went with a 6cly or even a 4cyl in them. ......
In Brazil, the Ford F250 is available with a 4 cylinder diesel.

http://www.nav-international.com.br/...&idSubSerie=42
Old 01-24-2009 | 04:57 AM
  #59  
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I guess there's space limitations or whatever. But for 1/2 tons if they were starting with a clean slate anyway maybe a 5litre inline six could have worked out. At least then it would sound like a Cummins. V8 Diesels just plain sound like crap.
Old 01-25-2009 | 05:06 AM
  #60  
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why dont they just run the same motors in the half tons as they do the 3/4 tons like ours? wouldnt the fuel milage be better with a lighter truck and plus the power would be amazing. i think that if gm put a duramax in a h2 they would sell like crazy and a 4bt in a dakota and durango, or a... well i would rather leave powerstoke alone, they should make a good motor first then i will recommend there motor in something


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