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  #1  
Old 11-30-2010, 01:36 PM
stodg73's Avatar
stodg73 stodg73 is offline
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Default Suggested Upgrades for Diesels

Suggested Order of Upgrades for your Diesel.

In order to upgrade your diesel from stock, you should have a baseline of readings in order to know what has changed. Also, if you do multiple upgrades at one time and something goes wrong, you will not know which upgrade caused the problem or error code.

In order to know what is happening to the engine, you should have at the minimum compliment of aftermarket gauges. At the minimum for Dodges, you need a fuel pressure gauge, boost gauge, and EGT gauge. Those with automatic transmissions should also have a transmission temperature gauge. With these gauges and a stock engine you will proceed to gather information as to how well the engine is running. Starting with a baseline of readings, you will be able to determine what is happening to the engine and transmission as you add more upgrades.


The suggested order for upgrades should be as follows:
1. Gauges
2. Better intake, i.e. CAI, ram air, BHAF, etc.
3. Bigger exhaust, 4” is for about 500 HP, 5” for 500+ HP and deeper sound
4. Transmission, i.e. better clutch for manuals or stronger bands, billet input shaft, torque converter, valve body, etc. for auto’s
5. Fuel system
6. Larger injectors
7. Fueling box or chip, timing
8. Larger turbo/Compound turbos

By doing these upgrades in this suggested order, you will be able to know what is happening to your engine as they are being added.

With the addition of gauges, the next step is to get the air into and out of the engine, as diesels are large air pumps. The easier in, the easier out, the cooler the engine will run, i.e. lower EGT temps, and less of a chance of damaging the engine. Here is some more information about gauges: Gauge Information This is quite a read but well worth it.

Most transmissions are sometimes just barely able to hold the stock power that is produced. When you start upgrading the engine, the transmission will start to suffer. So upgrading the transmission before it is destroyed/slipping is easier than buying a new or replacement.

When upgrading the fuel system, you need to get a larger lift pump to supply more fuel to the injection pump. When doing this you should also upgrade the fuel delivery lines to a larger size. This is to allow or more fuel to be moved from the tank to the IP, and the excess fuel is returned to the tank along with cooling the injector pump.

The next upgrade should be injectors. Depending on your application is what type of injector that you will need. For Dodges with the VP-44 injection pump, the most common are RV275’s which give about 45 hp.

The fueling box/chip and timing promoter can be any number of manufacturers. Depending on your application, is what type of electronic device that you will want. With certain electronics, you can stack them with others. Therefore, whichever chip/programmer that you choose, be sure that you do your research.

Now, in considering a larger turbo, you need to think about the application. Also, think about twins, triples, or quads, these are also known as compound turbos. When going to a larger turbo, there comes into play the turbo lag. The spool up of the turbo may become a problem , as to making excess smoke when just applying light amounts of throttle. When using compound turbos, the smaller turbo fills in for the turbo lag of the larger one, making the smoke problem easier to control. Headstuds come into play here, as you get into higher boost numbers the stock headbolts may break, the head may be lifted off the block, or you might blow a head gasket. O-ringing or Fire ringing the head and block are also other considerations here. Heavier valve springs are also needed at some point.

Now, for those of you that are wanting to “smoke” people/other trucks out, doing these upgrades will make your truck smoke more and sometimes it will make the truck smoke longer, i.e. long trails of smoke. The caveat to all this is that you will be making more power and torque while doing this.

More information to be added.
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O.O., 01.5, Dodge, 2500, High Output (H.O.) Cummins Turbo Diesel (245/505), Quad Cab Long Bed (QCLB), 4x4, Sport, Original Bosch VP 44 Injection Pump, 6 Speed/NV5600 Transmission, 3.55 Gears, 105k, currently stock engine, Fram Air Filter, 285/75R16s, Glow Shift Gauges: Fuel Pressure (FP), Boost, Exhaust Gas Temperature (EGT), Oil Temperature, SMARTY@1, Airtex lift pump 19 psi @ idle, 14 psi @ WOT, Propane Injection, 2 Stroke Oil, Intake Air Temperature (IAT) Fooler = Better MPG, Bed Lined, Chrome Nerf Bars, more to come!!

Toys:
'79 CJ5, 258ci, 3" lift, 33x12.50x15, Stock Engine and 3 Speed Tranny
'05 Suzuki, GSX1300R, Hayabusa, All Stock, #3('00 blown engine, '00 stolen, & '05)
The complete live & learn and pass it on by H. Jackson Brown, Jr.

Last edited by stodg73; 01-13-2011 at 09:51 AM.
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  #2  
Old 12-01-2010, 10:23 PM
Terry C Terry C is offline
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Great info for anyone to follow!
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Old 12-02-2010, 10:11 AM
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Mopar1973Man Mopar1973Man is offline
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Rule of thumb...

Fix the weakest links first before add power because the weakest links will be the first to fail once power is added to the truck.

But Stodg73 got it covered...
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2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG

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Old 12-22-2010, 12:44 PM
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DieselDrew24 DieselDrew24 is offline
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Great write up Stodg! Im tired of the guys especially in Colorado running around without gauges. YOU DONT KNOW HOW YOUR ENGINE IS RUNNING WITHOUT GAUGES! Anyways, keep the info coming!
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'02 "Carrie" 4x4 Auto, 6in straight pipe TBE, Autometer Gauges, AFe Stage II CAI w/ Torque Tube, ATS Intake Manifold, ATS Aurora 3k, AirDog150, Smarty, Edge Comp "HOT", BD Stealth Cover, ATS DYNO on 8/6/2011 = 447hp 970ft-lbs
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Old 12-22-2010, 12:48 PM
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MnTom MnTom is offline
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Welcome DieselDrew!! I agree 110% about gauges. It is not just Colorado that has people without gauges. Anyhow, If you come up with anything to write about or comment on feel free to do so! We are such a young forum that we need to build our forum info. Again, welcome and feel free to jump right in and have fun!!
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
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Last edited by MnTom; 12-22-2010 at 01:20 PM.
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Old 12-22-2010, 12:50 PM
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DieselDrew24 DieselDrew24 is offline
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You should see the diesel owners up here Tom! tons of young dumb kids and even older guys running hot diesels with big power and no gauges. oh well not my truck
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'02 "Carrie" 4x4 Auto, 6in straight pipe TBE, Autometer Gauges, AFe Stage II CAI w/ Torque Tube, ATS Intake Manifold, ATS Aurora 3k, AirDog150, Smarty, Edge Comp "HOT", BD Stealth Cover, ATS DYNO on 8/6/2011 = 447hp 970ft-lbs
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Old 12-22-2010, 09:08 PM
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stodg73 stodg73 is offline
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Thanks Drew!
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O.O., 01.5, Dodge, 2500, High Output (H.O.) Cummins Turbo Diesel (245/505), Quad Cab Long Bed (QCLB), 4x4, Sport, Original Bosch VP 44 Injection Pump, 6 Speed/NV5600 Transmission, 3.55 Gears, 105k, currently stock engine, Fram Air Filter, 285/75R16s, Glow Shift Gauges: Fuel Pressure (FP), Boost, Exhaust Gas Temperature (EGT), Oil Temperature, SMARTY@1, Airtex lift pump 19 psi @ idle, 14 psi @ WOT, Propane Injection, 2 Stroke Oil, Intake Air Temperature (IAT) Fooler = Better MPG, Bed Lined, Chrome Nerf Bars, more to come!!

Toys:
'79 CJ5, 258ci, 3" lift, 33x12.50x15, Stock Engine and 3 Speed Tranny
'05 Suzuki, GSX1300R, Hayabusa, All Stock, #3('00 blown engine, '00 stolen, & '05)
The complete live & learn and pass it on by H. Jackson Brown, Jr.
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