EU5 injectors

///BMW Junkie · 02-09-2021, 07:59 PM

Curious if anyone has upgraded and what their experience has been thus far?

SnoozieToofs · 02-10-2021, 12:13 AM

Interested to know as well.

tomlong · 02-10-2021, 09:25 AM

Contact Alex Roy at Performance Eurowerks | PETuned.

They recently installed and properly dialed-in these EU5 injectors on 2 cars, both with Pure Stage 2+ turbos.

IIRC both cars went north of 700+whp with plenty more to go. Some combo of full e85 and meth I believe. More impressive to me, one did around 62x whp on winter mix 93 octane and moderate boost 😳

Both stock engines too.

With that fueling setup, Alex thinks that he can easily go closer to 800whp but the stock rods won't last.

Tuners are easily pushing these turbos to 750wtq but the car will not last long.

Alex indicated to me that he rather they enjoy this stage, then build motor when ready.

YASBBYM3 · 02-10-2021, 09:46 PM

Why are EU5 injectors an upgrade from the EU6 injectors?

M3RCILESS · 02-11-2021, 04:13 AM

Anyone got the part number to the proper eu5 injector upgrade?

MJ6 · 02-11-2021, 08:02 AM

Copied over from my answer to these questions in a different post:

Quote:

Originally Posted by MJ6

From what I've been told by both Halim and Kratos, the EU5 injectors flow much better than our stock EU6's and can support much higher targets on aftermarket turbos.

Quote:

Originally Posted by MJ6

Injector wise, you'll be wanting the F10 EU5 injectors (part #13647599876). On the tuning front, Cary is my tuner as well and I posed pretty much the same question. He let me know that the EU5 injectors would definitely need to be calibrated and coded in (which is generally taken care of through ISTA) and that they would require a retune to account for scaling. Luckily my shop has the ability to calibrate the new injectors, but I also reached out to Alex @ Alpine and was informed that they can perform remote calibrations if need be.

TopJimmy · 02-11-2021, 08:14 AM

@MJ6 beat me to it. Read here from Kratos: https://www.bimmerpost.com/forums/sh...php?p=27143905

///BMW Junkie · 02-11-2021, 09:21 AM

Quote:

Originally Posted by MJ6

Copied over from my answer to these questions in a different post:

Quote:

Originally Posted by MJ6

From what I've been told by both Halim and Kratos, the EU5 injectors flow much better than our stock EU6's and can support much higher targets on aftermarket turbos.

Quote:

Originally Posted by MJ6

Injector wise, you'll be wanting the F10 EU5 injectors (part #13647599876). On the tuning front, Cary is my tuner as well and I posed pretty much the same question. He let me know that the EU5 injectors would definitely need to be calibrated and coded in (which is generally taken care of through ISTA) and that they would require a retune to account for scaling. Luckily my shop has the ability to calibrate the new injectors, but I also reached out to Alex @ Alpine and was informed that they can perform remote calibrations if need be.

Cary can't calibrate the injectors remotely like Alex?

MJ6 · 02-11-2021, 10:49 AM

Quote:

Originally Posted by ///BMW Junkie

Cary can't calibrate the injectors remotely like Alex?

I asked him about the possibility, but he let me know that they only have the ability to do tuning requests and not coding unfortunately.

///BMW Junkie · 02-11-2021, 10:55 AM

Quote:

Originally Posted by MJ6

Quote:

Originally Posted by ///BMW Junkie

Cary can't calibrate the injectors remotely like Alex?

I asked him about the possibility, but he let me know that they only have the ability to do tuning requests and not coding unfortunately.

Gotcha, why do EU5 injectors need to be both calibrated and coded?

theweebabySeamus · 02-11-2021, 11:33 AM

I thought they only flowed like 10% more?

MJ6 · 02-11-2021, 03:44 PM

Quote:

Originally Posted by ///BMW Junkie

Gotcha, why do EU5 injectors need to be both calibrated and coded?

Just the nature of the beast. EU5 injectors have a higher flow and different characteristics than EU6, and from what I've read each injector is individually tested and given a particular designation. This code is entered into ISTA for calibration purposes so the DME can adapt as necessary.

Quote:

Originally Posted by theweebabySeamus

I thought they only flowed like 10% more?

According to Halim and the guys at Kratos, we was wrong.

Bluer2 · 02-13-2021, 12:27 AM

Quote:

Originally Posted by MJ6

According to Halim and the guys at Kratos, we was wrong.

how much more does it flow over stock according to Halim and Kratos?

MJ6 · 02-13-2021, 08:45 AM

Quote:

Originally Posted by Bluer2

how much more does it flow over stock according to Halim and Kratos?

While they didn't specify any specific flow rates, Kratos stated that:

Quote:

Originally Posted by Sales@KRATOS

There is quite a bit of misinformation regarding the flow rate of these injectors, but we can definitively state that they flow well over 10%-15% more than stock S55 injectors. We're already producing 25% more power than stock DI injector limit on straight E85 and still have plenty of injector left.

From my conversations with them both, apparently 750whp isn't out of the question on full E85 and stock HPFP with the EU5 injectors.

///BMW Junkie · 02-13-2021, 09:38 AM

That would be awesome. Stock LPFP too right, that's just with upgraded injectors?

MJ6 · 02-13-2021, 01:00 PM

Quote:

Originally Posted by ///BMW Junkie

That would be awesome. Stock LPFP too right, that's just with upgraded injectors?

Stock LPFP from what I've been led to believe.
And your PM box is full by the way man 👍🏻

///BMW Junkie · 02-13-2021, 01:02 PM

Quote:

Originally Posted by MJ6

Quote:

Originally Posted by ///BMW Junkie

That would be awesome. Stock LPFP too right, that's just with upgraded injectors?

Stock LPFP from what I've been led to believe.
And your PM box is full by the way man 👍🏻

Thanks, cleared!

SE7EN335 · 02-14-2021, 06:20 AM

So are we saying that in order to run full E85 on upgraded turbos on stock HPFP and stock LPFP, that all we need to do is fit and calibrate the f10 m5 EU5 injectors?

TopJimmy · 02-14-2021, 09:28 AM

Quote:

Originally Posted by SE7EN335

So are we saying that in order to run full E85 on upgraded turbos on stock HPFP and stock LPFP, that all we need to do is fit and calibrate the f10 m5 EU5 injectors?

Kratos has chimed in for us:
Stock S55 with EU5s can support 700-750WHP but then the stock HPFP will run at limit and stick EU5s (see Scenario 1).
S55 with upgraded HPFPs and EU5s support same WHP without running upgraded HPFPs at limit, so low risk of sticking EU5s (see Scenario 2).

Just ISTA calibrating for EU5s, resetting adaptations (BM3 or ISTA), and resetting small fuel mixture (ISTA) will not work by themselves.
I've confirmed with Kratos that any use of EU5s in the S55 would require a tune plus the 3 items above.

https://www.bimmerpost.com/forums/sh...php?p=27139866

fiveohwblow · 02-14-2021, 09:36 AM

All very helpful, thank you to those contributing! I’m pretty much done with the bolt on E85 tune so if I get the dreaded stuck injector I’ll get the f10 eu5’s and retune. Little money to spend to not be maxing stuff out with roughly 600 rwhp. In the meantime, I’ll just continue to let it eat as is.

TacoJova · 02-14-2021, 11:18 AM

Quote:

Originally Posted by SE7EN335

So are we saying that in order to run full E85 on upgraded turbos on stock HPFP and stock LPFP, that all we need to do is fit and calibrate the f10 m5 EU5 injectors?

Btw you can run all stock fueling and upgraded turbos on e85 just it won't net as much gains compared to just pump gas cause you run out of fueling

chetrickerman · 02-14-2021, 12:16 PM

For the record, the F10 EU5 injectors flow 903 g/min, and the OEM S55 EU6 injectors flow 821 g/min. That's from a Bosch fuel system engineer.

02-09-2021, 07:59 PM	#1
///BMW Junkie Major 474 Rep 1,009 Posts Drives: AW M4 Join Date: Mar 2014 Location: Washington DC iTrader: (0)	Curious if anyone has upgraded and what their experience has been thus far? __________________ Pure F82
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02-10-2021, 12:13 AM	#2
SnoozieToofs Private 29 Rep 56 Posts Drives: M235i, M3 Join Date: Oct 2017 Location: Florida iTrader: (0)	Interested to know as well.
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02-10-2021, 09:25 AM	#3
tomlong Captain 617 Rep 600 Posts Drives: F80 M3 Sedan Join Date: Sep 2019 Location: Chicago iTrader: (0)	Contact Alex Roy at Performance Eurowerks \| PETuned. They recently installed and properly dialed-in these EU5 injectors on 2 cars, both with Pure Stage 2+ turbos. IIRC both cars went north of 700+whp with plenty more to go. Some combo of full e85 and meth I believe. More impressive to me, one did around 62x whp on winter mix 93 octane and moderate boost 😳 Both stock engines too. With that fueling setup, Alex thinks that he can easily go closer to 800whp but the stock rods won't last. Tuners are easily pushing these turbos to 750wtq but the car will not last long. Alex indicated to me that he rather they enjoy this stage, then build motor when ready. __________________ https://www.instagram.com/tomlong/
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02-10-2021, 09:46 PM	#4
YASBBYM3 Major 593 Rep 1,117 Posts Drives: BMW M4 Cs Lamborghini Huracan Join Date: Aug 2015 Location: Florida iTrader: (3)	Why are EU5 injectors an upgrade from the EU6 injectors?
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02-11-2021, 04:13 AM	#5
M3RCILESS Enlisted Member 17 Rep 43 Posts Drives: AW F80 M3 Join Date: Jan 2019 Location: NorCal_Elk_Grove iTrader: (1)	Anyone got the part number to the proper eu5 injector upgrade?
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02-11-2021, 08:14 AM	#7
TopJimmy Major General 5450 Rep 5,143 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	@MJ6 beat me to it. Read here from Kratos: https://www.bimmerpost.com/forums/sh...php?p=27143905 __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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02-11-2021, 11:33 AM	#11
theweebabySeamus Captain 373 Rep 901 Posts Drives: M3 Join Date: Jul 2014 Location: Bay Area iTrader: (1)	I thought they only flowed like 10% more?
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02-13-2021, 09:38 AM	#15
///BMW Junkie Major 474 Rep 1,009 Posts Drives: AW M4 Join Date: Mar 2014 Location: Washington DC iTrader: (0)	That would be awesome. Stock LPFP too right, that's just with upgraded injectors? __________________ Pure F82
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02-14-2021, 06:20 AM	#18
SE7EN335 Captain 330 Rep 984 Posts Drives: 2022 M3 XDrive, 2023 IX M60 Join Date: Aug 2015 Location: Sydney, Australia iTrader: (1)	So are we saying that in order to run full E85 on upgraded turbos on stock HPFP and stock LPFP, that all we need to do is fit and calibrate the f10 m5 EU5 injectors?
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02-14-2021, 09:36 AM	#20
fiveohwblow Major 3633 Rep 1,397 Posts Drives: F15, E46 & M3, F82 Join Date: May 2016 Location: Desert SW iTrader: (1)	All very helpful, thank you to those contributing! I’m pretty much done with the bolt on E85 tune so if I get the dreaded stuck injector I’ll get the f10 eu5’s and retune. Little money to spend to not be maxing stuff out with roughly 600 rwhp. In the meantime, I’ll just continue to let it eat as is.
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