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Forced Induction Forum Sponsored by Active Autowerke
Discuss supercharging, turbocharging and even nitrous and water injection here.
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Old 09-20-2012, 08:07 PM   #1
bmwm330cie46
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Question aftermarket e46 injectors and fuel pump ?

hi i am installing a t4 spa turbo stage 2 runing 13 psi, smax intercooler with a fuelteck standalone with pulley kit and costom exhaust with a dump valve on my e46 mt 2001 330ci 6 speed with 3.38 diff , just wondering what size and brand fuel injectors to get and fuel pump .thanks

Last edited by bmwm330cie46; 09-20-2012 at 08:17 PM.
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Old 09-20-2012, 10:28 PM   #2
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I dont know if most people would know how to answer your question. I believe most of the FI solutions for our cars from the aa, vf, ess all use bosch cores which come from the ford mustangs I believe. When I build my turbo kit, Im going to use injector dynamics which is also bosch cores based on the ev6 cores. As for fuel pumps, I would use a walbro 255lph hp as long as you are not going to use e85.
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Old 09-20-2012, 10:53 PM   #3
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Here you go :
http://www.gtsparkplugs.com/InjectorSizeCalc.html

If you dont know how to use it get a shop to do it for you
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Old 09-21-2012, 09:46 AM   #4
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Stage 2 technique tuning e46 330 kit and call it a day?
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Old 09-21-2012, 10:44 AM   #5
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Your turbo build description is too vague, stage two SPA t4 doesn't say much about the airflow capability of that turbo and what your future goals are. Injector dynamics injectors are high impedance Bosch ev14 injectors and are very tunable but they come with a price tag you can buy off the shelf ev14's for a lot cheaper even though they are flow matched to x% like ID's Bosch i'm sure has quality control flow match numbers that are more than sufficient. High impedance injectors are the way to go for tuning and don't require peak-hold drivers to run them like low impedance injectors do.
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Old 09-21-2012, 03:07 PM   #6
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OP, do you mind if someone explains high impedance and low impedance injectors in your thread? My eyes glaze over when this is mentioned. I need to learn. I am sure not all of us know either.

It's these kinds of threads that provide a great platform for learning new things for some of us.
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Old 09-21-2012, 03:34 PM   #7
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OP, do you mind if someone explains high impedance and low impedance injectors in your thread? My eyes glaze over when this is mentioned. I need to learn. I am sure not all of us know either.

It's these kinds of threads that provide a great platform for learning new things for some of us.
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Old 09-21-2012, 03:35 PM   #8
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Quote:
Originally Posted by Bdave View Post
OP, do you mind if someone explains high impedance and low impedance injectors in your thread? My eyes glaze over when this is mentioned. I need to learn. I am sure not all of us know either.

It's these kinds of threads that provide a great platform for learning new things for some of us.
E46 Platform use High Impedance.
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Old 09-22-2012, 08:13 PM   #9
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High Impedance injectors are called saturated injectors;

They take the same amount of power to keep open as it takes to initially open it (meaning they get hotter), therefore it's recommended to not go above 80% DC on them.

Low impedance injectors are called peak-n-hold injectors;
The name comes from the way they use power , they initially get a strong current but once the injector is open a substansially less amount of current is required to keep it open.

Peak-n-hold injectors offer greater controll of the opening/closing and has a smaller time to go from closed to open and vice versa, if your ecu supports peak-n-hold then go for it.
If your ecu doesn't support it then dont run them with resistors, they're not meant for that.

Im abit drunk ATM so im sure i've confused myself at some point , hope someone can chime in on what i did wrong
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Old 09-26-2012, 12:54 AM   #10
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Stage 2 technique tuning e46 330 kit and call it a day?
hey mike from max psi , my car shuts of at me at high speeds when i am done accelerating and hold the clutch in for couple seconds my rpm drop and my car shots of, did u ever come across this problem at ur shop , do u know what it might be , it's unsafe last time car turned off at me at a turn doin 80 and i had no power steering,

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Old 09-26-2012, 12:58 AM   #11
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Quote:
Originally Posted by bmwm330cie46 View Post
hey mike from max psi , my car shuts of at me at high speeds when i am done accelerating and hold the clutch in for couple seconds my rpm drop and my car shots of, did u ever come across this problem at ur shop , do u know what it might be , it's unsafe last time car turned off at me at a turn doin 80 and i had no power steering,
Dont hold the clutch if it shuts of...and fix the problem of course
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Old 09-26-2012, 01:21 AM   #12
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Dont hold the clutch if it shuts of...and fix the problem of course
lol kk, of course , thanks
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Old 09-26-2012, 07:10 AM   #13
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Quote:
Originally Posted by bmwm330cie46 View Post
hi i am installing a t4 spa turbo stage 2 runing 13 psi, smax intercooler with a fuelteck standalone with pulley kit and costom exhaust with a dump valve on my e46 mt 2001 330ci 6 speed with 3.38 diff , just wondering what size and brand fuel injectors to get and fuel pump .thanks
Wow you went with everything from Brazil? The fuel Tech is cool. Which one did you get?

never had a problem tuning these:

For a pump look at the JayRacing fuel pumps.
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Old 09-26-2012, 09:13 AM   #14
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as mentioned above without more info on your build its hard to give advice on what injectors to use. If you are going to use any walbro fuel products were currently having a sale for 40% off if your interested. Good luck with your build!
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Old 09-26-2012, 01:45 PM   #15
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Old 09-26-2012, 02:32 PM   #16
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I have some 42lbs injectors
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Old 09-26-2012, 10:02 PM   #17
bmwm330cie46
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Wow you went with everything from Brazil? The fuel Tech is cool. Which one did you get?

never had a problem tuning these:

For a pump look at the JayRacing fuel pumps.
i did not buy it yet just waiting till the new model comes out to market in november
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Old 09-26-2012, 10:25 PM   #18
bmwm330cie46
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as mentioned above without more info on your build its hard to give advice on what injectors to use. If you are going to use any walbro fuel products were currently having a sale for 40% off if your interested. Good luck with your build!
Aeromotive Fuel Pump - 340 Stealth Pump > is this the pump for my car and is this the price with the 40% off >> $164.92 ?

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Old 09-26-2012, 10:52 PM   #19
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Quote:
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Aeromotive Fuel Pump - 340 Stealth Pump > is this the pump for my car and is this the price with the 40% off >> $164.92 ?
He said on Walbro fuel parts....

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Old 09-30-2012, 10:32 PM   #20
bmwm330cie46
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I have some 42lbs injectors
what brand injectors u get or did they come with ur supercharger and why u choose raceware stud kit over arp stud kit is it streangth or price or what and did u get a multi layor head gasket? thanks

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