N54Tech.com - International Turbo Racing Discussion
(#1)
Old
v8killr4u v8killr4u is offline
Junior Member
 
Posts: 80
Join Date: Oct 2014
Car: 335 xi
Default Fuel Injector Question, Index 7 vs 10 - 07-25-2016, 07:57 AM

I am looking to buy a set of injectors, what is the difference between the Index 7 versus Index 10. I assume there is some engineering change but Im not sure if the change is significant enough to steer more towards one or the other when taking price into consideration. The two sets Ia m looking are refurbished and warrantied for a year. Just looking for some feedback.

Thanks
Reply With Quote
(#2)
Old
dlp3719 dlp3719 is offline
Junior Member
 
Posts: 187
Join Date: Jun 2012
Car: 2007 335i
Default 07-25-2016, 08:34 AM

11 and 12 seem to be the versions that finally sorted misfires.

Are you modding your car? If yes, I would only be willing to buy 11 or 12


2007 n54 e90 sedan (1/07 date), JB4 G5 ISO - Map 3, BMS DCI, BMS Trunk Tank Meth Kit - two nozzle - CM7/CM10, BMS OCC, MHD Trebilia Flash, e60 (5 gallons of 93 and 11 gallons E85), Stage 2 from Fuel-It, VRSF 7" FMIC, N54tuning.com V1 DP, ER Charge Pipe w/Tial BOV, NGK Iridium (one-step colder) plugs, N20 TMAP Sensor, RB turbo inlets, VTT outlets
Reply With Quote
(#3)
Old
v8killr4u v8killr4u is offline
Junior Member
 
Posts: 80
Join Date: Oct 2014
Car: 335 xi
Default 07-25-2016, 01:17 PM

Quote:
Originally Posted by dlp3719
11 and 12 seem to be the versions that finally sorted misfires.

Are you modding your car? If yes, I would only be willing to buy 11 or 12
CAr is stock with DCI. THey both come with a 1 year warrranty, I just wasn't sure if the difference between the two i have to choose from were dramatic changes.
Reply With Quote
(#4)
Old
tnl9608 tnl9608 is offline
New Member
 
Posts: 14
Join Date: Dec 2015
Car: 2008 535is
Default 07-26-2016, 08:33 PM

you may have to code them in if you install index 10's. If you replace index 7's with new/refurbed index 7's it would be a direct swap. I could be wrong but I believe you have to change the bank or the whole set if you go with index 10 or higher. But as others have stated the best way to go would be to get index 11 or 12, since they finally seemed to have fixed the issues with leaky injectors with those revisions.
Reply With Quote
(#5)
Old
ianc ianc is offline
Junior Member
 
Posts: 52
Join Date: Jun 2016
Car: 135i
Default 07-26-2016, 08:43 PM

Quote:
If you replace index 7's with new/refurbed index 7's it would be a direct swap
I was under the impression that any time new\different injectors are installed, each individual injector needs to be coded according to the fuel flow rate printed on it. Is this not correct?

ianc
Reply With Quote
(#6)
Old
tnl9608 tnl9608 is offline
New Member
 
Posts: 14
Join Date: Dec 2015
Car: 2008 535is
Default 07-26-2016, 08:47 PM

I could be wrong. I was told by a mechanic that if the index number was the same the replacement injector would not need to be coded in
Reply With Quote
(#7)
Old
v8killr4u v8killr4u is offline
Junior Member
 
Posts: 80
Join Date: Oct 2014
Car: 335 xi
Default 07-27-2016, 07:51 AM

Thank guys, I purchased a set of (6) index 9 for $340 shipped. come with a one year warranty. For that price and warranty I roll the dice. I'll be downloading the software to program the injectors. from what ive seen looks pretty simple.

Thanks
Reply With Quote
(#8)
Old
RJ_419 RJ_419 is offline
New Member
 
Posts: 12
Join Date: Sep 2015
Car: '07 E92 335i 6MT
Default 07-27-2016, 08:24 AM

Quote:
Originally Posted by v8killr4u
Thank guys, I purchased a set of (6) index 9 for $340 shipped. come with a one year warranty. For that price and warranty I roll the dice. I'll be downloading the software to program the injectors. from what ive seen looks pretty simple.

Thanks
Would you mind updating this thread when you install them? I'm looking at getting these same ones on ebay.

I'm curious about the different indexes too. Obviously -01 through -07 were part of the recall, but does anyone have a lot of history on the -11 and -12s? What I mean is that how do we know that these don't have the same lifetime/failure rate as the others? Are they working just fine because they're new and haven't had the age/miles put on them yet?
Reply With Quote
(#9)
Old
v8killr4u v8killr4u is offline
Junior Member
 
Posts: 80
Join Date: Oct 2014
Car: 335 xi
Default 07-27-2016, 01:29 PM

Quote:
Originally Posted by RJ_419
Would you mind updating this thread when you install them? I'm looking at getting these same ones on ebay.

I'm curious about the different indexes too. Obviously -01 through -07 were part of the recall, but does anyone have a lot of history on the -11 and -12s? What I mean is that how do we know that these don't have the same lifetime/failure rate as the others? Are they working just fine because they're new and haven't had the age/miles put on them yet?
I'll update the thread, going to try and download this INPA software to code the, I heard it was a PIA but Im gonna give it shot...
Reply With Quote
(#10)
Old
Indo Rider's Avatar
Indo Rider Indo Rider is offline
Junior Member
 
Posts: 246
Join Date: Sep 2010
Car: 135
Default 07-28-2016, 10:53 AM

Quote:
Originally Posted by tnl9608
I could be wrong. I was told by a mechanic that if the index number was the same the replacement injector would not need to be coded in
Wrong. You need to do the coding for any injector that you swap in using the values printed on that particular injector. It's easy in INPA. For the benefit of the community, let's not spread misinformation.


2009 135i 6MT Jet Black, FBO+
Reply With Quote
(#11)
Old
P700 NEX P700 NEX is offline
New Member
 
Posts: 8
Join Date: Mar 2016
Car: 335i
Default 07-30-2016, 03:43 PM

I bought 3 of these refurbished index 9's off eBay. Within 3months one was leaking and I've just replaced it. I've contacted them to find out what they actually "refurbish" and what the process is. Expecting them to be ultrasonic cleaned or something. They didn't have a clue I quote "we use a third party company to do the refurb all we know is they come back and look like new". That gives me the impression they put new seals on the bottom and clean the outside of the injector not very good if they can't tell you what the actual process is that is carried out. I think it is pot luck whether you get a good used injector with a new seal or a bad one with a new seal personally.
Reply With Quote
(#12)
Old
RJ_419 RJ_419 is offline
New Member
 
Posts: 12
Join Date: Sep 2015
Car: '07 E92 335i 6MT
Default 07-30-2016, 09:13 PM

Quote:
Originally Posted by P700 NEX
I bought 3 of these refurbished index 9's off eBay. Within 3months one was leaking and I've just replaced it. I've contacted them to find out what they actually "refurbish" and what the process is. Expecting them to be ultrasonic cleaned or something. They didn't have a clue I quote "we use a third party company to do the refurb all we know is they come back and look like new". That gives me the impression they put new seals on the bottom and clean the outside of the injector not very good if they can't tell you what the actual process is that is carried out. I think it is pot luck whether you get a good used injector with a new seal or a bad one with a new seal personally.
Good info.

Since they claim to offer a 1 year warranty, how did they handle the situation when you had one fail? Did they exchange it?
Reply With Quote
(#13)
Old
Milan's Avatar
Milan Milan is offline
Senior Member
 
Posts: 824
Join Date: Sep 2014
Car: 08 335xi
Default 07-30-2016, 11:02 PM

You don't NEED to code the injectors it's just a really good idea to. If you don't believe me do an injector swap and drive your car around for awhile. Then code it and tell me if you notice the difference


09 335 - 6266
07 335i - 6870, E85 - SOLD
08 335xi - 6466, custom direct port meth - SOLD
Reply With Quote
(#14)
Old
P700 NEX P700 NEX is offline
New Member
 
Posts: 8
Join Date: Mar 2016
Car: 335i
Default 07-31-2016, 12:19 AM

Quote:
Originally Posted by RJ_419
Good info.

Since they claim to offer a 1 year warranty, how did they handle the situation when you had one fail? Did they exchange it?
As I'm from the UK and they are based in the USA it wasn't worth my time to pursue a refund or exchange. Return postage of the one faulty injector would have been more than my refund. I just put it down to experience unfortunately. I rolled the dice with them as they was cheap anyway. I may of been unlucky who knows, but the answers I got off them did not fill me with confidence. Needless to say I didn't purchase anymore off them.
Reply With Quote
(#15)
Old
Indo Rider's Avatar
Indo Rider Indo Rider is offline
Junior Member
 
Posts: 246
Join Date: Sep 2010
Car: 135
Default 07-31-2016, 11:16 AM

Quote:
Originally Posted by Milan
You don't NEED to code the injectors it's just a really good idea to. If you don't believe me do an injector swap and drive your car around for awhile. Then code it and tell me if you notice the difference
Sure, just like you don't NEED to change your oil. You won't notice a difference driving around on oil that hasn't been changed in 20k miles so let's recommend to the people that don't know that it's "a really good idea" to change your oil that you don't NEED to.

Sure you can drive around without coding the new injectors if you have to, but your post isn't helping people, it's actually making it sound like the coding is optional. But I guess it is, just like changing your oil is optional.


2009 135i 6MT Jet Black, FBO+
Reply With Quote
(#16)
Old
RJ_419 RJ_419 is offline
New Member
 
Posts: 12
Join Date: Sep 2015
Car: '07 E92 335i 6MT
Default 08-01-2016, 06:03 AM

Quote:
Originally Posted by P700 NEX
As I'm from the UK and they are based in the USA it wasn't worth my time to pursue a refund or exchange. Return postage of the one faulty injector would have been more than my refund. I just put it down to experience unfortunately. I rolled the dice with them as they was cheap anyway. I may of been unlucky who knows, but the answers I got off them did not fill me with confidence. Needless to say I didn't purchase anymore off them.
That makes sense. Unfortunate you got a bad one. Hopefully the others hold up better than that.
Reply With Quote
(#17)
Old
Milan's Avatar
Milan Milan is offline
Senior Member
 
Posts: 824
Join Date: Sep 2014
Car: 08 335xi
Default 08-01-2016, 12:19 PM

Quote:
Originally Posted by Indo Rider
Sure, just like you don't NEED to change your oil. You won't notice a difference driving around on oil that hasn't been changed in 20k miles so let's recommend to the people that don't know that it's "a really good idea" to change your oil that you don't NEED to.

Sure you can drive around without coding the new injectors if you have to, but your post isn't helping people, it's actually making it sound like the coding is optional. But I guess it is, just like changing your oil is optional.
Not really a good argument. I would argue that the coding is optional....


09 335 - 6266
07 335i - 6870, E85 - SOLD
08 335xi - 6466, custom direct port meth - SOLD
Reply With Quote
(#18)
Old
Impac's Avatar
Impac Impac is offline
Junior Member
 
Posts: 194
Join Date: Jan 2014
Car: 2008 BMW 535i
Default 08-01-2016, 12:36 PM

Quote:
Originally Posted by Milan
Not really a good argument. I would argue that the coding is optional....
Install new injectors DONT CODE THEM do few WOT pulls and check back with us ?


JB4 G5, DCI, Er CP with HKS Bov, VRSF DP's, BB Race flash
Reply With Quote
(#19)
Old
Milan's Avatar
Milan Milan is offline
Senior Member
 
Posts: 824
Join Date: Sep 2014
Car: 08 335xi
Default 08-01-2016, 04:05 PM

Quote:
Originally Posted by Impac
Install new injectors DONT CODE THEM do few WOT pulls and check back with us ?
It's already been done. Find the thread where people tried purposefully coding different flow values into the car to trick the DME into providing more fuel....it didn't work.


09 335 - 6266
07 335i - 6870, E85 - SOLD
08 335xi - 6466, custom direct port meth - SOLD
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2020, N54tech.com