Aftermarket fuel injectors? - BMW 3-Series (E90 E92) Forum

NSFW 335i · 01-31-2013, 09:16 AM

Hello,
I'm pretty sure they don't have aftermarket ones, but this website is saying the universal ones work? Can soneone please explain why these wont work with our n54 motors?

Thanks.

http://www.autopartsway.com/PartList.../Fuel_Injector

NSFW 335i · 02-02-2013, 09:02 AM

bump?

Wires · 02-02-2013, 06:12 PM

If they have the same form/fit/finish, injector opening time, flow rate, connections, etc, they might work.

Injectors aren't really documented like spark plugs. You're going to have a hard time finding generic ones unless they are marked for your application.

Mind you, all of those Holley ones are out of stock, so it makes it eaier to decide.

NSFW 335i · 02-02-2013, 08:10 PM

Quote:

Originally Posted by Wires

If they have the same form/fit/finish, injector opening time, flow rate, connections, etc, they might work.

Injectors aren't really documented like spark plugs. You're going to have a hard time finding generic ones unless they are marked for your application.

Mind you, all of those Holley ones are out of stock, so it makes it eaier to decide.

I ended up ordering them off ESCtuning website.

AWil335i · 02-02-2013, 10:19 PM

Quote:

Originally Posted by NSFW 335i

I ended up ordering them off ESCtuning website.

Good luck. I cancelled my order because they're back ordered.

skatenc123 · 02-02-2013, 11:26 PM

Looked into this a while ago seemed the safest way to go was oem.

335BBS · 02-03-2013, 01:07 AM

Quote:

Originally Posted by NSFW 335i

Hello,
I'm pretty sure they don't have aftermarket ones, but this website is saying the universal ones work? Can soneone please explain why these wont work with our n54 motors?

Thanks.

http://www.autopartsway.com/PartList.../Fuel_Injector

Wtf would you even try them?

135Hoser · 02-03-2013, 02:04 AM

lol. Yeah, Injectors for my 2009 Universal. Sweet!

Please do some reading about the N54 engine and how it works, and why 'universal' injectors dont' work.

roundel335 · 02-03-2013, 10:51 AM

For one thing, N54 (and N55) engines use DIRECT INJECTION, which implies piezo-electric devices for extremely high fuel pressures directly into the combustion chamber, not into the intake manifold as with the non-turbo N52 engine (as an example). Holley, while famous for carburetion and other fuel-system related parts in the American car market, likely does not make piezo injectors that will work with a BMW engine. Note that every one of those parts listings says "universal" and not car-specific. While they may be similar, I certainly wouldn't put "universal" injectors in my $16K German engine. For one thing, replacing injectors requires "coding" them according to the numbers on the injector body, and it's highly unlikely that these would work at all, let alone give you any kind of performance advantage. Bosch, on the other hand, would be where you'd want to look, but they're not going to be cheap.

fun2drive · 02-03-2013, 06:03 PM

Visit the site that discuss this and a lot of other performance parameters and you will get answers there to include larger flowing injectors...
Just search bmw boost sites.
Not sure if we are allowed to post the site

NSFW 335i · 02-03-2013, 07:34 PM

Quote:

Originally Posted by fun2drive

Visit the site that discuss this and a lot of other performance parameters and you will get answers there to include larger flowing injectors...
Just search bmw boost sites.
Not sure if we are allowed to post the site

I ended up buying stock ones from ECS. Also, I searched and searched, could not find any larger ones sold for our cars?

Wires · 02-04-2013, 08:52 AM

Larger injectors aren't going to net you more power. You'd need to remap the PCM to handle them.

Unless you have found them flatlining at WOT, there would be no point to even look for larger ones.

01-31-2013, 09:16 AM	#1
NSFW 335i Lieutenant Drives: 08 e92 335i Join Date: Oct 2009 Location: ny Posts: 539 iTrader: (7)	Aftermarket fuel injectors? Hello, I'm pretty sure they don't have aftermarket ones, but this website is saying the universal ones work? Can soneone please explain why these wont work with our n54 motors? Thanks. http://www.autopartsway.com/PartList.../Fuel_Injector __________________ 08 E92 335i AW Coral Red 6MT Fully Loaded\|AA DP\|BMS DCI\|JB4 G5\|Milltek full exhaust\|SSK\|Stett CP\|Tial bov\|Tinted window\|HID Fogs\|M3 Front\|Mtech Rear\|VMR V710\|ACS pedals\|V1 hardwired\|BMW Performance Parts-Shift knob-Boot-E-Brake-SteeringWheel\|CF Parts CSL trunk-V35 Hood-ACS roofspoiler\|Red Pre-LCIs\|Tow hook Plate\|Clutch Stop\|
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02-02-2013, 09:02 AM	#2
NSFW 335i Lieutenant Drives: 08 e92 335i Join Date: Oct 2009 Location: ny Posts: 539 iTrader: (7)	bump? __________________ 08 E92 335i AW Coral Red 6MT Fully Loaded\|AA DP\|BMS DCI\|JB4 G5\|Milltek full exhaust\|SSK\|Stett CP\|Tial bov\|Tinted window\|HID Fogs\|M3 Front\|Mtech Rear\|VMR V710\|ACS pedals\|V1 hardwired\|BMW Performance Parts-Shift knob-Boot-E-Brake-SteeringWheel\|CF Parts CSL trunk-V35 Hood-ACS roofspoiler\|Red Pre-LCIs\|Tow hook Plate\|Clutch Stop\|

02-03-2013, 02:04 AM	#8
135Hoser Custom User Title Drives: 09 135i Join Date: Jul 2011 Location: Canada, Eh Posts: 218 iTrader: (0)	lol. Yeah, Injectors for my 2009 Universal. Sweet! Please do some reading about the N54 engine and how it works, and why 'universal' injectors dont' work. __________________ 2009 135i AR Resonated DPs, Line Lock Kit \| HPF FMIC \| Forge DV's \| BMW PE \| BMS DCI, OCC, JB4 G5 \| Meth Still todo: Wavetrac LSD, Suspension bits

02-03-2013, 10:51 AM	#9
roundel335 Colonel Drives: 13 335i Sedan, 11 128i Cabrio Join Date: Apr 2010 Location: Boerne, TX Posts: 2,734 iTrader: (2) Garage List 2013 BMW 335i Sedan [5.00] 2011 BMW 128i Cabri ... [4.25]	For one thing, N54 (and N55) engines use DIRECT INJECTION, which implies piezo-electric devices for extremely high fuel pressures directly into the combustion chamber, not into the intake manifold as with the non-turbo N52 engine (as an example). Holley, while famous for carburetion and other fuel-system related parts in the American car market, likely does not make piezo injectors that will work with a BMW engine. Note that every one of those parts listings says "universal" and not car-specific. While they may be similar, I certainly wouldn't put "universal" injectors in my $16K German engine. For one thing, replacing injectors requires "coding" them according to the numbers on the injector body, and it's highly unlikely that these would work at all, let alone give you any kind of performance advantage. Bosch, on the other hand, would be where you'd want to look, but they're not going to be cheap. __________________ 2013 F30 335i M-Sport 8AT/MPE/MPPK, 2011 128i M-sport Cabrio 6MT/PE

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02-02-2013, 06:12 PM	#3
Wires Captain Drives: 335xi Join Date: Apr 2008 Location: Calgary Posts: 883 iTrader: (0)	If they have the same form/fit/finish, injector opening time, flow rate, connections, etc, they might work. Injectors aren't really documented like spark plugs. You're going to have a hard time finding generic ones unless they are marked for your application. Mind you, all of those Holley ones are out of stock, so it makes it eaier to decide.

02-02-2013, 11:26 PM	#6
skatenc123 Lieutenant Drives: 2007 335i coupe Join Date: Jan 2012 Location: NC Posts: 549 iTrader: (1)	Looked into this a while ago seemed the safest way to go was oem.

02-03-2013, 06:03 PM	#10
fun2drive BMWCCA 149159 Drives: E93 335 Vert E36 M3/4 Join Date: Jul 2006 Location: Florida Panhandle Posts: 395 iTrader: (1)	Visit the site that discuss this and a lot of other performance parameters and you will get answers there to include larger flowing injectors... Just search bmw boost sites. Not sure if we are allowed to post the site

02-04-2013, 08:52 AM	#12
Wires Captain Drives: 335xi Join Date: Apr 2008 Location: Calgary Posts: 883 iTrader: (0)	Larger injectors aren't going to net you more power. You'd need to remap the PCM to handle them. Unless you have found them flatlining at WOT, there would be no point to even look for larger ones.