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Old 10-15-2004, 10:58 PM   #11
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there is another engine that is not in your list that you might consider.
The Detroit Diesel 8.2l turbo. reasonable amount of power and fuel economy.

I agree with the rest on the cummins 5.9. Its not a good bus engine. if you look long enough you'll come to the same conculsion. Its a great pickup engine. I'd take one tomorrow.

For the tranny. the MT 643 is better than the MT545. Just check the input ratings. If the mechanical limits are pushed the sooner a mechanical item will wearout. An even better tranny would be the mt653. the 5 speed cousin of the mt643. it'll give you better highway speeds

-dkenny
ps I have a Bluebird bus with a DD8.2l turbo and an MT643 tranny
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Old 10-17-2004, 01:29 PM   #12
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Quote:
Originally Posted by dkenny
An even better tranny would be the mt653. the 5 speed cousin of the mt643. it'll give you better highway speeds

-dkenny
ps I have a Bluebird bus with a DD8.2l turbo and an MT643 tranny
Hi there,

I don't believe that that you'd find this to be true; all the information that I'm able to find suggests that the final drive ratios (effective mechanical) on both the MT643 and the MT653 are 1:1. The highway speed/rpm would therefore be indentical for both transmissions in high gear.
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Old 10-17-2004, 03:10 PM   #13
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Nearly every one of these buses has been towed back to the cummings certified repair facility for new a new injector pump at least once
injection pump failures with the newer 24valve dodge motors is an issue even the trucks are having. The newer injection pump doesn't use engine lubrication. (assuming they are using this motor)

Quote:
If you really want high performance (i use that term loosly), buy a big gasser, like a fuel injected 454.
a big gasoline motor can never produce the power of a diesel motor. They might make good horsepower but the torque is no comparisson. Besides diesel has more power per once than gasoline.


also I have found some older 8.2s and manual trannys, I assume this is a good combonation
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Old 10-17-2004, 06:10 PM   #14
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I agree there is more energy in a gallon of diesel fuel than a gallon of gasoline. I dissagree that diesel engines are higher performance than gasoline.

how many diesel sports cars do you find? or diesel race cars?

another added performance benifit of a gas vs diesel is that the gasser usually redlines at a higher rpm giving a higher top end speed for a given gear ratio.

I personally am not an advocate of gas skoolies, but if high performance is what you're looking for, diesel is not the place to look.
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Old 10-17-2004, 07:40 PM   #15
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I'm a big fan of the 8.2L engines, the wife and I made a 5000 mile trip last year in our Carpenter schoolbus with 8.2l engine and 545 tranny..
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Old 10-18-2004, 03:04 PM   #16
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how many diesel sports cars do you find? or diesel race cars?
Guess you haven't seen the guys with Ford Superdutys that drop the Cummins 6B in there and run 11-12 second 1/4 mile times... It's quite entertaining to see an 8000lb truck go down the track that fast. Some of these guys also drive their trucks everyday.

http://www.dhraonline.com/

I live in Texas , Dallas Fort Worth to be exact, and we are one of THE hot spots for truck sales in North America. Dodge sells more 3/4 ton diesels here than anywhere else. I drive 40 miles to work every day and I see Ford Powerstrokes pulling car trailers with 3 full size vans/trucks/cars whatever on them.. Now that is very dangerous (why I am looking at a skoolie and not a Ford/Dodge) but these boys have no problem keeping speed. Of course the gearing isn't there in a skoolie, but the power potential and reliablity is. Not to start an argument, just to understand where I am coming from. Now reality might come and smack me in the face when/if I get my skoolie loaded with my 5k truck on it and a 7000lb trailer behind it.



Now I agree out of the box a diesel is designed to run at 100% all day long..usually at a lower power output than a comparable gasonline motor, but what you can do with a set of tools, a good Exhaust gas temp gauge, and some injenuity to an already turbo charged diesel motor would surprise most.
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Old 12-11-2004, 12:55 PM   #17
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What about....

370? What is the stat of that particular engine? It just so happens I'm looking at one now.
Is there a website I can go to for engine info?

pm
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Old 11-24-2007, 10:57 PM   #18
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Re: More Questions, more organized

I felt the need to bring up this old thread. Any more comments about the 5.9 Cummins in a skoolie? Mine is about 167K right now and I am pricing painting material for my TC2000.
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Old 11-25-2007, 10:17 AM   #19
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Re: More Questions, more organized

I have an 8.2l Detroit diesel. I like it it seems to have plenty of power for my needs and it runs great. I don't mind driving slower. I am being safer at slower speeds. I also have an AT545 and it seems to be just fine. Now I don't know much about this motor or trans but they seem to like each other.
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Old 11-25-2007, 09:43 PM   #20
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Re: More Questions, more organized

I'm not disagreeing with anything in your post but, speaking as a former military member, it's only fair to let you know that our nation's defense relies on the lowest bidder, not necessarily the best equipment.
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