1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

What kinda power? What to look for?

Old Mar 8, 2012 | 11:23 PM
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Default What kinda power? What to look for?

Ok so getting close to paying off my 7.3 and want to save and get a first gen cummins.
What kinda power can they make and still be a DD?
What kinda power all out?
What trans auto or manual?
What should I look for when buying one?
Thanks guys!!!


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Old Mar 8, 2012 | 11:34 PM
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12mm pump......500rwhp fuel, 600+w/m and nitrous

14mm pump.....650-700rwhp fuel, 900-1000 nitrous...

I still can drive mine daily.
 
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Old Mar 8, 2012 | 11:38 PM
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Ok how do u know what pump the truck has?


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Old Mar 9, 2012 | 01:11 AM
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Also with 650-700 hp and 900-1000 on nos with stock rods and pistons hold up to it? Or would u need better?
If not what is the most the stock pistons and rods can handle?
I know you'd need springs head studs push rod and stuff like that anything else?


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Old Mar 9, 2012 | 06:53 AM
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Originally Posted by shorty2tall
Ok how do u know what pump the truck has?


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12mm is the stock pump. 14mm is only aftermarket and if one has a 14mm IP I'm sure they would tell you first off as a selling point.
 
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Old Mar 9, 2012 | 09:57 AM
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Oh ok cool where do u get the 14mm pumps?
What's the max the engine can handle with stock internals?


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Old Mar 9, 2012 | 07:31 PM
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Rocken, Tech, Diesel, fuel, Injection, Pumps, Performance, Rotor, Heads, Camplates, Nozzles
This ones a good price not sure on quality.

Scheid Diesel - VE Pump w/14MM Head Scheid Diesel Dodge Ram 2500 - 3500
This ones a lot more but they have good quality.
 
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Old Mar 10, 2012 | 09:29 PM
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I read somewhere it was 1000HP on a stock bottom end but I may be wrong. These things will take one hell of a beating.

I daily drive mine n love it though after my accident it wasn't my fault n I wasn't speeding but I still have slowed down some but still love the power too.
 
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Old Mar 12, 2012 | 07:50 PM
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if you get a 14mm pump do you have to do any other mods along with it?
 
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Old Mar 12, 2012 | 08:15 PM
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Big enough injectors to keep it flowing, air dog or good fuel pump, turbo, and should use head studs and valve springs for the high boost you will be pulling.
 
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