40 or 50 hp Injector Nozzle Gains? - Dodge Cummins Diesel Forum
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Old 04-18-2010, 10:14 PM   #1 (permalink)
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40 or 50 hp Injector Nozzle Gains?

I am on a quest for mileage right now. Every company that sells the nozzles advertises 1-2 mpg gains with their nozzles. Has anyone actually installed injector nozzles and noticed a mpg increase?

How about noticeable power increases with small 40-50hp nozzles? I have all the power I need with the Black Maxx, so I'm not looking for large injector nozzles. I assume the Black Maxx will play nice with the larger nozzles, right?
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Old 04-18-2010, 11:19 PM   #2 (permalink)
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I personal think 40-50hp tips are just right, if you are going to be runnings bigger tunes.

The BM would be fine with them.

I have no info on mileage. i would not expect much.

Keep in mind the power rating is for the stock tune, and goes up as you run bigger tunes.
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Old 04-19-2010, 06:34 AM   #3 (permalink)
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I have a set of 50hp injectors. I didn't see any real solid increase in mileage because I put other stuff on at the same time as well. But I could definetaly tell a the truck had some more power and now the truck can put out a little puff of black smoke
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Old 04-19-2010, 04:57 PM   #4 (permalink)
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I have a set of 50hp injectors. I didn't see any real solid increase in mileage because I put other stuff on at the same time as well. But I could definetaly tell a the truck had some more power and now the truck can put out a little puff of black smoke
What tuning are you running? Any downsides that you noticed? Do you have any other fuel mods to go along with the tips?
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Old 04-19-2010, 04:59 PM   #5 (permalink)
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I am running my smarty on SW8 set to kill with an arson jr. and airdog.
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Old 04-19-2010, 05:52 PM   #6 (permalink)
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gains will depend on a lot of things but limiting them to your scope of question about the injector tips, a set of 40-50 hp nozzles that are done "properly" should show gains of an avg 1 mpg under the same driving conditions and habits. the gains are from the proper finish of a set of tips. stock nozzles are not OEM polished and finished to quite the striclt standard that most our aftermarket nozzles are. a true HONED and POLISHED set of nozzles at your rated 40-50 HP will show you lower egt's at cruising, better attomization of the fuel= cleaner oil at changes= and some MPG improvement all becasue when done correctly they are going to be more efficient. The game for the nozzles are to spray the largest amount of correctly attomized fuel into the correct spot of the cylinder piston (the cup). Nozzles that are not finished correctly can and will spray more fuel but may not spray it in the right spot or anywhere near the attomizatoin levels that give you your power from every last attom of the fuel. Remember the holes in these injectors are not just little tiny round holes they are ported to direct the fuel spray we are dealling with measurements down to 5 microns which = 0.000196850394 of an inch. thats less than 2 ten thousandths of an inch. the width of a human hair is .001


But yes you should see gains of up to 1 mpg with a good set of nozzles as well as lower egts while cruising and cleaner engine oil
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Old 04-19-2010, 06:29 PM   #7 (permalink)
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i dont have any milage gains this was also on my cousins truck but, spoolup was so much faster and power was way more. he said he gained 1mpg 2003 stock everything but quadzilla.
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Old 04-20-2010, 12:30 AM   #8 (permalink)
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gains will depend on a lot of things but limiting them to your scope of question about the injector tips, a set of 40-50 hp nozzles that are done "properly" should show gains of an avg 1 mpg under the same driving conditions and habits. the gains are from the proper finish of a set of tips. stock nozzles are not OEM polished and finished to quite the striclt standard that most our aftermarket nozzles are. a true HONED and POLISHED set of nozzles at your rated 40-50 HP will show you lower egt's at cruising, better attomization of the fuel= cleaner oil at changes= and some MPG improvement all becasue when done correctly they are going to be more efficient. The game for the nozzles are to spray the largest amount of correctly attomized fuel into the correct spot of the cylinder piston (the cup). Nozzles that are not finished correctly can and will spray more fuel but may not spray it in the right spot or anywhere near the attomizatoin levels that give you your power from every last attom of the fuel. Remember the holes in these injectors are not just little tiny round holes they are ported to direct the fuel spray we are dealling with measurements down to 5 microns which = 0.000196850394 of an inch. thats less than 2 ten thousandths of an inch. the width of a human hair is .001


But yes you should see gains of up to 1 mpg with a good set of nozzles as well as lower egts while cruising and cleaner engine oil

Thanks for the great reply. So who would you recommend for injector nozzles. Black Ops has a set of 50hp tips. It looks like Dynomite Diesel offers a set of 40hp and 50hp nozzles (not sure if this is an error between sites). I think I might know your answer, so I'll throw in an added question, why are they better?
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Old 04-20-2010, 08:23 AM   #9 (permalink)
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Because when your get BOD nozzles from James at Rollin Smoke diesel your supporting a fellow forum member and the price is pretty good
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Old 04-20-2010, 12:01 PM   #10 (permalink)
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Because when your get BOD nozzles from James at Rollin Smoke diesel your supporting a fellow forum member and the price is pretty good
I hear you! I bought my BM, delete kits, ARP studs, and steering stabilizer from James. The customer service and the response time from RSD is unreal!!!

I just want to make sure if I bite the bullet on injectors, that the BOD 50hp are the best. Again, I am in it for the mileage, so I want to make sure their injector provide the best possible fuel atomization.
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Old 04-20-2010, 10:30 PM   #11 (permalink)
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Well I am gonna be a little biased on which nozzles I think are the better I am BOD bro so I believe in and stand behind what I make. I can tell you the process that the BOD nozzles go through are as complete and thorough as you can get for any injector nozzles. I will put my nozzles up against any of the nozzles on the market!!!! there are ways with our trucks to get bigger MPG gains to compliment a good set of nozzles as well the biggest being airflow of course.
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Last edited by rbmedic75; 04-20-2010 at 10:32 PM.
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