Research Paper Help

Dan2500Brown

Active Member
Joined
Feb 15, 2009
Location
Concord, NC
Im doing a research paper on modifications possible for a 3/4 -1 ton pickup diesel :shaking: . If anyone has any info or ideas on stuff I could write about I'd appreciate it. I just need some stuff to get me started
 
what kind of class are you in that you are writing a paper on that topic?

A make or model would probably be a little more helpful if you want us to do your homework for you.
 
Expository Writing. And i'm not looking for someone to do my homework for me, just for a little help. And for Duramax, Cummins, Powerstroke, it doesn't matter. Just some basic stuff would help
 
Well, depending on the year model you can do different things. 94-98 CTD used a 12 valve motor with a mechanical injector pump. Easy to modify by increasing the exhaust size to 4", changing to bigger injectors, sliding the cam plate which mechanically controls the fuel and installing a better flowing intake.

98.5 -2002 CTD used a 24 valve computer controlled injector pump. Same basic mods like exhaust and intake, but you could easily add about 60-150 hp just from adding a performance chip to alter the injector pumps timing and duration, or better performance injectors.

2003-current CTD used a new "common rail" fuel supply. It makes it's improved power with a much higher injector and rail pressure (around 20-25000 psi). Same basic principles to modification as the 24 valve, intake, injectors, chips, etc. The 2004.5-newer came factory with 4" exhaust.

Any of the above listed will basically only be able to hold around 100hp above stock on the factory transmissions (auto). Anything more will overpower the factory converter and the clutch packs.

Other mods could include lift kits, traction bars, gauges (including EGT, boost, tranny temp, rail pressure), built billet transmissions, exhaust stacks.

I know Dodge and Cummins stuff pretty well, so if you need more help, let me know. As for Ford, I know squat except that the 7.3 was a good dependable motor, the 6.0 is a joke and not dependable, and the 6.4 is not alot better. Chevy has the Duramax which is an Isuzu made motor. Good dependable motor that can make good hp and is mated to an awesome transmission (Allison). Not trying to start any brand wars, just putting in my first hand knowledge.

Not sure if this was the information you are looking for, if you need something different, let me know.
 
I can get you a little more detailed info if you need it, just let me know specifically what you are looking for.
 
Yeah thatd be awesome. Any info you can give would be appreciated. Any info on just the basics on a Cummins itself? Like in depth on how it works, advantages, disadvantages, the differences between like the 5.9 and 6.7 and 12 Valve, 24 Valve all those types of things.
 
sqrl$$ said:
Chevy has the Duramax which is an Isuzu made motor. Good dependable motor that can make good hp and is mated to an awesome transmission (Allison). Not trying to start any brand wars, just putting in my first hand knowledge.
Not sure if this was the information you are looking for, if you need something different, let me know.
Click to expand...
Until you start building ANY power, 80HP over stock at the wheels and Allison will beg you for mercy and send you home limping, literally.:lol:
 
Like in depth on how it works, advantages, disadvantages, the differences between like the 5.9 and 6.7 and 12 Valve, 24 Valve all those types of things
Click to expand...

Cummins motor works off of diesel fuel. Diesel engines use high compression to ignite the fuel, unlike a gas motor that uses a spark to ignite the gas. They (some) use a turbo to force feed air into the cylinders to develop their power. They turbo is driven off the exhaust side of the motor. The engines exhaust heat and flow turn the turbine of the turbo which forces outside air into the combustion chambers. The more exhaust flow, the more the turbo spins, which makes even more boost in the motor which makes more horsepower.

5.9 motor was originally put in the dodge trucks back as early as 89 or 90 and continued up until 2007. Originally, it was a low hp (140) motor that made alot of torque at low engine rpms. This high torque output is what makes the diesel engines good for pulling. The 94-98 models increase hp to 160-180 range. the 98.5-2002 models went to 24 valve which allowed the motors to turn more rpm's and made the trucks a little more "faster". These engines where in the 215-245 hp range. 2003-current engines used common rail fuel supply. These engines could turn even more rpm's and are much quieter and smoother running and were in the 245-325 hp range.

6.7 liter motors started in 2007. This engine was cummins/dodge effort to meet 2010 emmisions ratings. They are good dependable motors as well, but were loaded with emissions equipment that choked the motor down on fuel mileage and hp. It is a similar engine to the 5.9, but with larger displacement.

Advantages in diesel are long life of the motors, low rpm engine power and torque curves, better fuel economy, longer service intervals in oil changes, easily modded to build high hp.

Disadvantages are heavier weight, more upfront costs ($5-8,000), higher maint costs, higher fuel prices
 
Dodge transmission craps out at 100 hp, ask me how I know, LOL. (see sig below about tranny)
 
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