75 hp injector

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scippy

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Can someone please explain what a 75 hp injector is and how it would increase my total hp?.......I know the 24 valve 5.9L diesel engine produces 235hp at the flywheel ..maybe 200hp by the time it's to the rear wheels..... if I replace my stock injectors with (6) 75hp injectors, then total hp will be increased by 75hp.?...I know there is a broad range of these after market injectors (50hp to 400hp and beyond) , but I don't clearly understand.............Thanks, Scippy
 

CTD

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Bigger injectors will increase the MAXIMUM AVAILABLE power, by making more fuel available under max load conditions. Bigger holes just inject it faster, meaning shorter pulse width for each injection event. What changes is the amount of fuel that can be injected during that duration of injection. More fuel available= more power available.

The next question would be do you have a tuner to make the adjustments to the PCM for the extra fuel? To reap the full benefit of larger injectors you really need a tuner but it is not a have too.
 
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scippy

scippy

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CTD Thanks,.........No, no tuner currently, I'm just wanting to know what a 75hp injector means?......does it mean if I install a set of 75hp injectors the net gain would
be 75hp "overall" to my engine?......of course, including a tuner for best adjustments to PCM if I decide one day.
 

jlbayes

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It means nothing. The hp rating is determined by the injector builder and there are NO standards for them. Before you buy injectors let me know. I will point you in a direction before you spend absurd amounts of money on over priced junk.
 
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scippy

scippy

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It means nothing. The hp rating is determined by the injector builder and there are NO standards for them. Before you buy injectors let me know. I will point you in a direction before you spend absurd amounts of money on over priced junk.

jibayes..........I'm about to soon, I'm all ears!.....Thanks, Scippy
 

jlbayes

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Ok so a couple things. Without a boost fooler and/or a module that adds timing you will be leaving all the power you should be gaining from an injector upgrade on the table. Lift pump, I vaguely remember you saying the truck had an aftermarket on the truck? Fass ddrp maybe? Trans.....this will be your biggest limiter. IF you can drive sensibly the transmission will live for a while.
 
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scippy

scippy

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Ok so a couple things. Without a boost fooler and/or a module that adds timing you will be leaving all the power you should be gaining from an injector upgrade on the table. Lift pump, I vaguely remember you saying the truck had an aftermarket on the truck? Fass ddrp maybe? Trans.....this will be your biggest limiter. IF you can drive sensibly the transmission will live for a while.

jlbayes,

Not a wrencher per say, nor have I any experience with Diesel performance upgrades, but never the less very interested to learn about my new truck and it's Diesel engine.
Granted I have a very heavy burden to put on my transmission, but like you suggest "drive sensibly & the trans will live for awhile" will adhere to!......don't have the double
canister Fass system, but I do have the Fass ddrp & 4" turbo back exhaust.......So starting from there & as you say, without a "module" that adds timing it's a waste to install
an injector upgrade..........what type (or brand) "module" would work for a moderate increase in power?.....and followed what size (hp?) injector (set) would compliment the
module install? ......thanks for weeks of tutorial and advice!.............. Scippy
 

jlbayes

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Anything vp related I prefer a piggy back module over a flash tuner. Flashing the ecm multiple times seems to wreak havoc on them. Edge ez, ts mvp, and diablo power puck are all non wire tap boxes that will work great with the stock turbo and not overly expensive. They all will compliment a "small" injector well. I prefer to use quadzilla adrenaline with iquadbt. Allows custom tuning to suit the truck to you vs. boxed tuning that is just there. Now it is more expensive and requires some setup time to get the tune right.
 
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scippy

scippy

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What about injectors?.........what would compliment anyone of your suggestions for the non wire tap boxes?
 
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scippy

scippy

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Anything vp related I prefer a piggy back module over a flash tuner. Flashing the ecm multiple times seems to wreak havoc on them. Edge ez, ts mvp, and diablo power puck are all non wire tap boxes that will work great with the stock turbo and not overly expensive. They all will compliment a "small" injector well. I prefer to use quadzilla adrenaline with iquadbt. Allows custom tuning to suit the truck to you vs. boxed tuning that is just there. Now it is more expensive and requires some setup time to get the tune right.

The Edge ez would work well with my budget..(like you said, I want to be mindful of the transmission and also boost some power when towing) what small injector would work well for my needs?....contagious diesel performance has rv2-75 injectors for $325.00
 

jlbayes

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I am not a huge fan of the rv275s due to the wide cone angel (smoke). They work though and would work just fine with the edge ez.
 
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I am not a huge fan of the rv275s due to the wide cone angel (smoke). They work though and would work just fine with the edge ez.

jlbayes..........In your opinnion, Are there other injectors (types) that would go better with the edge ez?....having more then one (type) to choose from is always a better choice.
 

jlbayes

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Cost begins to be prohibitive is my issue. The builder I use is not cheap and will not build anything as small as what you are looking for. Diesel auto power or ducky fuel injection are middle of the road injectors with affordable prices.
 
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Cost begins to be prohibitive is my issue. The builder I use is not cheap and will not build anything as small as what you are looking for. Diesel auto power or ducky fuel injection are middle of the road injectors with affordable prices.

Can you give me the next step up above the rv2-75 injectors?......DAP & Ducky are a wash with injectors and (to me) confusing as all hell to pick a moderate injector.
 

jlbayes

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Personally I would not run anything smaller than a 7x.010". However with your transmission status, 7x.009" would be my choice. SAC or VCO will not matter nor make a difference in that small of size.
 
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Personally I would not run anything smaller than a 7x.010". However with your transmission status, 7x.009" would be my choice. SAC or VCO will not matter nor make a difference in that small of size.

jlbayes......I'm afraid you'll have to led me by the hand on this one!....your choice the 7x.009 can it be ordered by simply saying; "I need (6) injectors 7x.009 injectors?
what does SAC or VCO mean?..........thanks, Scippy
 

jlbayes

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Ordering online or calling in? SAC and VCO are nozzle designs. SAC uses a small sack at the tip of the nozzle and the needle seals against the sack. VCO the needle seals against the nozzle holes directly. There are a couple pictures floating around of the differences but I do not like to use them as they are straight propaganda. Your truck stock has VCO nozzles. The differences are negligible at the size you will be looking at.
 

dudeman2009

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Ordering online or calling in? SAC and VCO are nozzle designs. SAC uses a small sack at the tip of the nozzle and the needle seals against the sack. VCO the needle seals against the nozzle holes directly. There are a couple pictures floating around of the differences but I do not like to use them as they are straight propaganda.

Ohh man, I remember those arguments in school. "SAC is superior because it says so" "VCO is unreliable and leaks all the time" Even in the big Diesels it really doesn't make a difference, in the injector is going to leak, its going to be around a quarter million miles anyway, might as well use injectors that are less than half the cost and will get you another quarter million vs the ones that are twice as much and get you 400K miles. Roughly. The only time i've ever seen it matter is in engines used in drag or competition. Or some of the guys that build their diesels to do nothing more than drive them down the street.
 
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scippy

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I spoke with DAP and told them I'll be running the Edge ez and would like a compatible injector (and as jlbayes said) they recommend the VP 7X.009.
There moderately priced at $349.00.........$100 deposit on the cores if I want Bosch.....refurbished $349.00 no deposit!....should I hold out for the Bosch?
 

jlbayes

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Ohh man, I remember those arguments in school. "SAC is superior because it says so" "VCO is unreliable and leaks all the time" Even in the big Diesels it really doesn't make a difference, in the injector is going to leak, its going to be around a quarter million miles anyway, might as well use injectors that are less than half the cost and will get you another quarter million vs the ones that are twice as much and get you 400K miles. Roughly. The only time i've ever seen it matter is in engines used in drag or competition. Or some of the guys that build their diesels to do nothing more than drive them down the street.

Problems occur when there are multiple large holes in the vco(7x.014", 8x.012" etc). They will crack. But for what he is looking for it is not relevant and what most builders use as a scare tactic. Sad really.

I spoke with DAP and told them I'll be running the Edge ez and would like a compatible injector (and as jlbayes said) they recommend the VP 7X.009.
There moderately priced at $349.00.........$100 deposit on the cores if I want Bosch.....refurbished $349.00 no deposit!....should I hold out for the Bosch?

I prefer the Bosch bodies and not the aftermarket. They are better quality.
 
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