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

Biggest injectors

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  #11  
Old 03-11-2011, 11:32 PM
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You are going to need some Turbos to go with those big injector's and only one or two more thing big injectors by themselves aren't going to make you any faster
 
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big bad diesel 416 (03-11-2011)
  #12  
Old 03-12-2011, 12:47 PM
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Originally Posted by cumminsblazer
Ok that's what I thought but had to make sure honestly I'm gonna go with the biggest injectors I can find it's easyer to detune then tune up

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I just found some 7x.026 ha ha
You're gonna be disappointed.

Keep in mind, the goal is to atomize the injected fuel. The volume used with typical driving has enough pressure coming out of the stock (or reasonable larger size) nozzle to do so.
Getting WAY too big is gonna result in the nozzles Peeing the fuel into the cylinders.

You can't "Detune" a fixed nozzle.

With the typical maximum fuel available with a typical 12mm VE H/R, nozzles comparable to 6x.016" ~ 6x.018" are gonna be about it. They will haze considerably at idle and will require a LOT of air to keep the EGTs under control.
 
  #13  
Old 03-12-2011, 01:22 PM
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Originally Posted by BC847
You're gonna be disappointed.

Keep in mind, the goal is to atomize the injected fuel. The volume used with typical driving has enough pressure coming out of the stock (or reasonable larger size) nozzle to do so.
Getting WAY too big is gonna result in the nozzles Peeing the fuel into the cylinders.

You can't "Detune" a fixed nozzle.

With the typical maximum fuel available with a typical 12mm VE H/R, nozzles comparable to 6x.016" ~ 6x.018" are gonna be about it. They will haze considerably at idle and will require a LOT of air to keep the EGTs under control.
Read this a few times and listen to him close. He is 100% correct. You will be very disapointed with a large injector and no supporting mods. And were not just talking some screws here.
 
  #14  
Old 03-12-2011, 09:18 PM
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got to back this up to as bobby and david said thats correct you can run a garden hose for an injector if you like but to make it work well and make power you HAVE to back it up with the other mods
 
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