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Old 02-02-2013, 06:54 PM
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Default 1994 Dodge Cummins P7100

I got a 1994 Dodge Ram 2500 - Cummins Turbo Diesel I'm working on. The owner has it pull completely apart. Engine and transmssion are out. But we got talking about tuning the P7100 pump. What would be a good timing to set at for him? He plans on towing a 5th RV with the truck once the truck is rebuilt.
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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 02-02-2013, 08:15 PM
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This is from another thread.

Quote:
Originally Posted by ISX View Post
I have been getting numbers from all different models and the OEM timing ranges from 12.5/13.5/14.

The 160's and 175's are 12.5*, the 180's are 14*, and the 215's are 13.5*.
Here is the thread. I'm new here.
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Old 02-03-2013, 06:07 AM
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Most of that depends on the transmission. Stock auto I am guessing? If so, anything above stock and you will over power it. With a decent transmission I would bump the timing to 14 to 15 degrees, grind the fuel plate to about a #100 and slide it about 3/4 forward. Tune the AFC a bit and you should be set. Another thing to think about is tighten the governor springs about 2 clicks each to improve the throttle response. That should put it in the vicinity of 250 or so HP. Doing the same thing to my 180HP put it to 299HP to the ground so it is a noticeable boost in power.
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Old 02-03-2013, 10:31 AM
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Stock fuel system, 5 speed, 2WD...

Talked to ISX on the phone he's suggesting between 12-14 BTDC. Nothing more than 14 BTDC because you need the lower end torque to get a trailer rolling and too much advancement will make it doggy.

Do you tend to agree?
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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 02-03-2013, 10:36 AM
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I said 14.5 13.5-14.5 would be fine. 12 is pushing it. The reason I don't say 16 is because it is a 5 speed truck and I have an identical truck in every aspect and the power you lose down low kills your take off power. It's not like an automatic that can just rev higher until the trailer moves, we have to start in 1st gear at low RPM and work from there and I have found getting carried away with advanced timing has adverse effects on take off power. Get too retarded and now up high isn't efficient and your EGT's are hot. So I'm saying 14.5ish..

A year or 2 ago I had my truck realllly retarded and it was awesome taking off with the trailer, but I couldn't pass anyone. When you stepped on it it would just move the EGT gauge way up, the speedometer wouldn't do crap.
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Old 02-03-2013, 03:53 PM
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Since it is a 5 speed, ISX hit it on the head. The stock clutch won't hold much more than stock power either.
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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
Duct Tape can't fix stupid, BUT it can muffle the sound
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Old 02-03-2013, 05:04 PM
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My timing used to be probably over 20* thanks to the rejects who advanced my timing during the plague of my early day ignorance on not knowing how to do it myself. You would take off with the trailer and you'd have to wind up every gear it it would just fall on it's face when it dropped back to low RPM. After I set it back to stock I couldn't believe how much power I had been missing down low. Though it could sure kick some dust up in the high rpms
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1997-12V-NV4500-Dana 80/3.54/2wd-350k---21-27mpg
Removed AFC--No Plate--13.5* timing--BHAF--5" Exhaust--Valair Clutch
1994-Jeep Cherokee-5spd-3.07-4wd-202k---16-19mpg
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