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Old 04-14-2013, 10:03 PM
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School me on injectors!

Ok guys, I have searched and read everything I can about injectors and I still have some questions. If there is a specific thread already in existance that answers these questions, my apologies...I could not find it!

First off, I am very educated in gasoline tuning...so that means I have a bunch to learn about my diesel! I am sure that all of these have been answered many times before, but again...I have not found this info easily.

I believe I understand the "cc's" of our injectors measures how much fluid the injector flows at maximum pulse width (PW), and the nozzle % is a percent of flow over the stock orifice size.

The way I picture this, and this injector is based off of my nieve assumption...so bear with me! The size below is fictional, just so I can ask specific questions without adding confusion about all the sizes and such. That will be the topic of one of the next questions

I see injectors advertised as a cc/nozzle description, like...180/0 or 180/80

This is how that sounds to me...

180/0 = 180cc max flow (volume) with a std nozzle diameter (orifice)
180/80 = 180cc with a nozzle that delivers the fuel 80% faster?

So, in all reality...they both flow 180cc, just one is capable of delivering the fuel volume faster, requiring less PW (time) to do so?

I have a bunch of questions...so your input on this part will help me ask my next question correctly!

Thanks in advance, and I hope this will be a good learning experience for others as well!
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Old 04-15-2013, 05:41 PM
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you got it. i will add the CCs is over 1000 times the injector fires.
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Old 04-16-2013, 08:06 AM
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What are your goals for the truck, how do you use it....that is whats needed to determine what injector and mods are best..plus your budget, engine and trans condition etc.
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Old 04-16-2013, 10:07 AM
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Cary,

I have not set any goals other than to have fun for now! More or less, the truck is a toy that I have been waiting along time to get my hands on, and I love to tinker and fabricate...so I will be doing some simple mods here soon, and some more involved projects in the future. I have an email ready to send to you, so look out for it in the next few days.

As for this thread, like it states...I do not know that much about all the popular injector fitments/designations.

I will assume stock injector designations are what AA/AB etc stand for, so our trucks take AA code injectors (unless it is a Cali model)

AA codes are stock single shot 90cc's, 1994-1997 years
AB codes are split shots, up to 1998
AD codes are split shots, 1999-2003
AE codes are special for cylinder #8, split shot trucks only

AC code...did not find out much, but some shops build OBS upgrades with these
AO code...did not find out much, but some shops build OBS upgrades with these too!

So, here is where I start to ask questions regarding power level, potential for economy and growing room.

"Stage 1's", usually up to 350-400 FWHP, built off of existing AA injectors

"Stage 2's", usually up to 400-450 FWHP, built off of existing injectors but with custom internals.

"Hybrids", usually 450-550 FWHP, do not know what they are built off of but people talk like they are the best thing going for tuning and growth. I do not know if they have good fuel economy potential. (talking 200cc-240cc sizes...to be specific, just because I am sure there are bigger hybrid sizes). I would like some more specific info on the pros and cons of hybrids.

Rosewood
Swamps
Full Force...

They all have similar setups, but with slightly different approaches to sizing the CC's and nozzles. Why is this?

Thanks in advance for helping me understand this a little better!
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Old 04-16-2013, 10:29 AM
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Hybrids..Pro's make big HP best used 450hp and above.

As someone already stated big HP costs a insane amount of $. In reality stage 1's will walk up a OBS and provide the best bang for total investment..

I've got all the mods and make 450HP....drive 99% of the time in econ as where are ya gona safely use the power.
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Old 04-16-2013, 10:56 AM
Hee Hee, he's doing it...
 

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Awesome reads but read just a bit at a time. Otherwise you can smoke your brain

Heui injectors

Help me understand injectors
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Old 04-16-2013, 12:39 PM
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Quote:
Originally Posted by BigFuel View Post
Awesome reads but read just a bit at a time. Otherwise you can smoke your brain

Heui injectors

Help me understand injectors


Thanks Matt! I will get to reading
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Old 04-16-2013, 12:47 PM
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Quote:
Originally Posted by CT Performance, Inc. View Post
Hybrids..Pro's make big HP best used 450hp and above.

As someone already stated big HP costs a insane amount of $. In reality stage 1's will walk up a OBS and provide the best bang for total investment..

I've got all the mods and make 450HP....drive 99% of the time in econ as where are ya gona safely use the power.

Big HP is not really the goal, just a good fun truck that will put a smile on my face when I lay down the hammer. It is a 5 speed, so it wont be setting any speed records. Somewhere between 350-450 WHP and ~ 800#/ft would be the ultimate goal. I do not really care about the money, it will just take me longer to get it saved up if it costs more!

I will be adding to my thread here as the build comes together.

Again, I appreciate the help...learning is why I am here!
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  #9  
Old 04-16-2013, 02:33 PM
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just to clarify for ya
AA code - single shot 94-97 90cc
AO code- single shot 94-97 90cc
AB code- split shot cali 96-97 emissioned vehicles and early 99 (98-3/99 iirc)120cc
AD code- L99-03 140cc
AC code- 160cc but only in some of the actual international trucks, not our psd's
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Old 04-16-2013, 07:00 PM
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all you REALLY need to know is figure out your REAL goals FIRST......

basically, I see it like this, there's the folks who tow a lot, (like me).

there's the folks that race, either sled pullers or draggers...

and the folks that try, (Usually unsuccessfully), to have a daily-driven race truck.

pick your poison, (and wallet size), and build accordingly....

"A Man's got to Know His Limitations" ..... Dirty Harry....

couple things....you really do NEED e-fuel in my opinion, and it's usually left for last...the stock ford fuel system is a pile of CRAP, and it's right square in the way.
and put a Fluidampr on whatever you do, it's well worth the money for the increased bottom end protection....
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