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  #1  
Old 04-15-2010, 09:00 PM
acroteau acroteau is offline
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Default Injectors and mass air flow

hey guys. i have a 2004 ranger and was wondering where to find bigger injectors. how big should i go? where do i find them? what about the mass air flow sensor? where would i get the mass air flow sensor?
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  #2  
Old 04-15-2010, 09:39 PM
Fx4wannabe01 Fx4wannabe01 is offline
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Default Re: Injectors and mass air flow

Why???? Do you even have a need for larger injectors? You shoving more air in the thing, thus requiring more fuel??
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Old 04-15-2010, 09:47 PM
richarddhoward richarddhoward is offline
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Default Re: Injectors and mass air flow

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Originally Posted by Fx4wannabe01 View Post
Why???? Do you even have a need for larger injectors? You shoving more air in the thing, thus requiring more fuel??
x2
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Old 04-15-2010, 09:51 PM
Vrod21 Vrod21 is offline
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Default Re: Injectors and mass air flow

x3, unless you have plans of forced induction (supercharger, turbo charging)?
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Old 04-15-2010, 09:52 PM
richarddhoward richarddhoward is offline
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Default Re: Injectors and mass air flow

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Originally Posted by Vrod21 View Post
x3, unless you have plans of forced induction (supercharger, turbo charging)?
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I think Henry just shit himself
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Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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  #6  
Old 04-16-2010, 06:26 AM
acroteau acroteau is offline
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Default Re: Injectors and mass air flow

wow thanks for the help....not. bunch of douche bags, thats not what i asked now is it. i was told it makes more power but whatever
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Old 04-16-2010, 09:58 AM
richarddhoward richarddhoward is offline
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Default Re: Injectors and mass air flow

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Originally Posted by acroteau View Post
wow thanks for the help....not. bunch of douche bags, thats not what i asked now is it. i was told it makes more power but whatever
Hey you asked, we were curious. No need to get into name calling. The bigger injectors won't do anything for you unless you really need them ie adding a supercharger or turbo set up. You're PCM will still run the same amount of fuel into your engine, it will just have the ability to inject more fuel than stock, but it won't use it. As for mass air flow sensor I think you mean a bigger throttle body, as the sensor is just used to measure the amount of air coming into your engine and sends the signal to your PCM so that it can correct your fuel map. I know they make a bigger throttle body, you might try autopartsanything.com. I find a lot of stuff on there, also might check into the build threads of the other guys who might already mentioned it and have a website posted.
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Outcast Racing
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Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens View Post
I think Henry just shit himself
Quote:
Originally Posted by Radness View Post
Its kind of like that carnival game "Whack A Mole" but with guns! Haha

Last edited by richarddhoward; 04-17-2010 at 01:02 AM.
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  #8  
Old 04-16-2010, 04:57 PM
acroteau acroteau is offline
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Default Re: Injectors and mass air flow

thank you thats a llittle more help then before
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  #9  
Old 05-16-2010, 08:52 PM
ec_dago_ryder ec_dago_ryder is offline
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Default Re: Injectors and mass air flow

Mass air flow sensor!
Throttle bodys dont do anything!
my friend had one on his ranger but it just gave him a few extra mpg.
As far as mass air flow sensor jet sells them.. those work! its basically a stock maf but its flashed so it sucks more air. get one!
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  #10  
Old 05-17-2010, 10:59 PM
00bamaranger 00bamaranger is offline
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Default Re: Injectors and mass air flow

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Originally Posted by ec_dago_ryder View Post
As far as mass air flow sensor jet sells them.. those work! its basically a stock maf but its flashed so it sucks more air. get one!
just out of curiosity, how exactly is a flashed maf going to make a n/a engine suck in more air
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  #11  
Old 05-18-2010, 01:43 AM
Jp7 Jp7 is offline
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Default Re: Injectors and mass air flow

Quote:
You're PCM will still run the same amount of fuel into your engine
Ok - professional tuner chime in here.....

The problem is bigger injectors WONT inject the same amount of fuel into the engine..

Kinda.

In closed loop conditions the ECU will detect rich feedback from the HEGO(s) and trim down the fuel maps, narrowing pulsewidth until it sees it go beyond threshold and throws a "rich" code.

In open loop the ECU will blindly follow the map, and pulse exactly what ford told it too and causing it too run too rich, if it runs at all.

Fuel injectors work like opening a window. Bigger injectors are a bigger window. Imagine your house was full of water and you opened your window - some would pour out. If you had a bigger window it would pour out more. Fuel injectors are either open or closed - there is no "opening the window only half way". The way fuel is controlled is with "Pulse-width", or how quickly the window is opened or closed. When I put bigger injectors in a car, I trim the pulsewidth down. For example if I double the size of the injectors, I would trim the pulsewidth on the fuel map by half. Also the latencies are different, but I won't get into explaining that.
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  #12  
Old 05-18-2010, 01:47 AM
Jp7 Jp7 is offline
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Default Re: Injectors and mass air flow

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Originally Posted by 00bamaranger View Post
just out of curiosity, how exactly is a flashed maf going to make a n/a engine suck in more air
You can't flash a MAF. A MAF is a sensor that just reacts with a voltage based on the physical conditions it sees. The ECU is flashed. Anybody who says you can flash a MAF is a n00bie.
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Originally Posted by FireRanger View Post
I'm dying to see this at night. Someone go tell the sun to give up already.
Quote:
Originally Posted by beef08 View Post
Your the man, you bring our dreams to a reality within the lighting spectrum
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Originally Posted by BCobe View Post
Jp7 you always do AMAZING work! Hats off to you sir
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People so often confuse "hating" with "knowing better".
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  #13  
Old 05-18-2010, 02:39 AM
ZWilson07 ZWilson07 is offline
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Default Re: Injectors and mass air flow

Quote:
Originally Posted by Jp7 View Post
Ok - professional tuner chime in here.....

The problem is bigger injectors WONT inject the same amount of fuel into the engine..

Kinda.

In closed loop conditions the ECU will detect rich feedback from the HEGO(s) and trim down the fuel maps, narrowing pulsewidth until it sees it go beyond threshold and throws a "rich" code.

In open loop the ECU will blindly follow the map, and pulse exactly what ford told it too and causing it too run too rich, if it runs at all.

Fuel injectors work like opening a window. Bigger injectors are a bigger window. Imagine your house was full of water and you opened your window - some would pour out. If you had a bigger window it would pour out more. Fuel injectors are either open or closed - there is no "opening the window only half way". The way fuel is controlled is with "Pulse-width", or how quickly the window is opened or closed. When I put bigger injectors in a car, I trim the pulsewidth down. For example if I double the size of the injectors, I would trim the pulsewidth on the fuel map by half. Also the latencies are different, but I won't get into explaining that.
Quote:
Originally Posted by Jp7 View Post
You can't flash a MAF. A MAF is a sensor that just reacts with a voltage based on the physical conditions it sees. The ECU is flashed. Anybody who says you can flash a MAF is a n00bie.

he just owned this entire thread, and very good knowledge on the subject! like said before what your trying to do isnt going to help do anything unless there is a need for bigger injectors like engine work, supercharger etc, these aren't just old carb motors, these are very hitech and tuning sensitive engines compared to old counter parts and ford puts alot of time and money into the computer work behind these things. if your looking for any big gain in power your going to have to do alot of work and get big power adders, its just that simple.
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  #14  
Old 05-18-2010, 08:23 AM
Jp7 Jp7 is offline
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Default Re: Injectors and mass air flow

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Originally Posted by ZWilson07 View Post
he just owned this entire thread, and very good knowledge on the subject! like said before what your trying to do isnt going to help do anything unless there is a need for bigger injectors like engine work, supercharger etc, these aren't just old carb motors, these are very hitech and tuning sensitive engines compared to old counter parts and ford puts alot of time and money into the computer work behind these things. if your looking for any big gain in power your going to have to do alot of work and get big power adders, its just that simple.
See where you run into problems is in my situation. I'm running 152lb injectors. Since I have to pass the OBD2 test every 2 years for emissions, I need an OBD2 complaint computer. I don't feel like swapping ECU's every few years, so I just leave the OEM one in. Since I only have 4 injectors to fuel my engine I have to use monstrous ones since my turbo and engine work is so advanced, and I run alcohol where you burn more fuel (its oxygenated better) My injectors are so big that I've got the pulse-width scaled back so small that I have a hard time starting the engine with the limits of how the fuel map can be tweaked without going to a purpose built ecu. As the pulsewidth is trimmed back the comparison in time it takes to get the injector open or closed approaches the same order of time it takes to have the injector open. Instead of pulses I almost have "peaks" if you understand. Long starting/cranking combined with the fact that I have a john-deer lawnmower battery for my car battery is not a very good combination.

Injectors should always be gauged to where the injector is only hitting 85% of its load so that under rich trimming it will not open and the pulses "overlap".
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Looking for a professional retrofitter to add HIDs or LEDs to your Ranger? PM me if your looking to have work done, and have cash to spend.

Quote:
Originally Posted by FireRanger View Post
I'm dying to see this at night. Someone go tell the sun to give up already.
Quote:
Originally Posted by beef08 View Post
Your the man, you bring our dreams to a reality within the lighting spectrum
Quote:
Originally Posted by BCobe View Post
Jp7 you always do AMAZING work! Hats off to you sir
Quote:
Originally Posted by FireRanger View Post
People so often confuse "hating" with "knowing better".

Last edited by Jp7; 05-18-2010 at 08:25 AM.
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  #15  
Old 05-18-2010, 10:58 PM
00bamaranger 00bamaranger is offline
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Default Re: Injectors and mass air flow

Quote:
Originally Posted by Jp7 View Post
You can't flash a MAF. A MAF is a sensor that just reacts with a voltage based on the physical conditions it sees. The ECU is flashed. Anybody who says you can flash a MAF is a n00bie.
yes i know you cant flash a MAF, i know you owned me on another thread but im not a complete dumb ass, i was wondering why the hell he thought the engine would suck in more air if he had a MAF that was calibrated different than a stock one, just trying to deal with one wrong thing at a time
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