injector bodies which are best pd 1.9

Drivbiwire said:

The ATD does not have the restriction channel.

Because of this, the pressure that builds behind the nozzle plate results in uniform pressure and volume delivery during the entire injection event.

Its a good body to upgrade.

Click to expand...

Good news then as I just bought another Mk4 2002 model with an ATD motor to tidy up.

It seems that only the PD150 has it. They even use a different spill valve solenoid design, t's not obvious unless overhauling the units.

So for a mild bump in power using the stock turbo, the PD150's will do the job if I am reading correctly. I've read the whole thing and I am not going for all out power, just a fun little commuter. Probably going to put a Colt stage 2 in as my cam has some wear.

Bueller, anyone?

Drivbiwire said:

The PD150 At the wheels they are 175 ish injectors, but smoke and EGT's are going to really get up there due to the slower flow curve. Also the ECU will be maxing out solenoid times due to the longer injection duration needed to get the volume delivered.

Comparing actual nozzle flow capability:

DLSA 150P 706 = 90hp Stock TDI as your reference
DSLA 150P 1043 = 150hp PD flows exactly 49% more fuel than a 90hp TDI stock nozzle.

Have you ever heard of a stock 90hp TDI getting 150hp with a chip alone? (Or even with the most extreme mods for that matter)

The PD does have the ability flow over a wider range than the older VE TDI, however pushing the nozzle flow range that far results is VERY negative affects on the motor, Excessive advance (excess cylinder pressure read cracking heads), Excess EGT due to very long duration injection (excess turbo temperatures).

Thats why VW/Bosch designed them the way they did, to limit tuning...

Click to expand...

what would AG injectors fitted with AL PD150 nozzles flow than assuming higher internal pressure and lack of the restrictor? have you ever flow tested such configuration?

Drivbiwire said:

Different version injector, 1.1 vs 1.3

The solenoid settings have to be modified to the version, this results in control variations. Don't mix and match different injectors withou version correcting them.

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Would this be the same changing from a version 1.1 to a 1.4?.

X-Man said:

what would AG injectors fitted with AL PD150 nozzles flow than assuming higher internal pressure and lack of the restrictor? have you ever flow tested such configuration?

Click to expand...

Good question.

Pd injector body p1.3 8mm pump from euro 3 ATD engine Bosch code :0414720037 vw code 038 130 073 AJ have "restricted channel".
These bodyes with perfect calibration and firad +80% low delivery 13ccm/full load 37,5ccm
Bosio R783 can not provide more 'power to FIRAD 80% and restricted channel is a mistake does not result change.
Body Wear / pump is responsible for the delivery differences.
If you use one body same nozzle, pump, with different types of channel
there are no differences.

Sorry for my english

Lucas1976 said:

Pd injector body p1.3 8mm pump from euro 3 ATD engine Bosch code :0414720037 vw code 038 130 073 AJ have "restricted channel".
These bodyes with perfect calibration and firad +80% low delivery 13ccm/full load 37,5ccm
Bosio R783 can not provide more 'power to FIRAD 80% and restricted channel is a mistake does not result change.
Body Wear / pump is responsible for the delivery differences.
If you use one body same nozzle, pump, with different types of channel
there are no differences.
Sorry for my english

Click to expand...

As asked, what if you put PD150 nozzles on our unrestricted PD100 injectors?

turbovan+tdi said:

As asked, what if you put PD150 nozzles on our unrestricted PD100 injectors?

Click to expand...

If body work good with same pump 8mm restricted or unrestricted channel does not change final flow.

DSLA 150p 1043 from 038 130 073 AL on 038 130 073 AJ have same flow. Stock nozzle 038130073AJ is DSLA 150P 800 425er

nice to know! when you see that here a set of pd150 injectors is sold 400-500€ and a set of pd100 is 100€... just have to buy a set of pd100, firad nozzles and labour price, then swapping the set

Sure my setup is pd100 bodyes with firad +80%

This is "Italian Style pd unit calibration"
https://www.youtube.com/watch?v=IDaiVnQ_FV8

Lucas1976 said:

This is "Italian Style pd unit calibration"
https://www.youtube.com/watch?v=IDaiVnQ_FV8

Click to expand...

I don't get it?

Those are nice and even, damn.

Yes these are my car values.

Lucas1976 said:

Yes these are my car values.

Click to expand...

So what's an italian calibration?

I wonder if it's the same as an Italian Tune Up.

If you guys look at his Location, you'll see he's from Italy and I'm guessing that he's hinting at the fact that he's got the injectors setup(calibrated) as close to perfect as one can on PD injectors.
Hence the "Italian Style unit pd calibration".

3L3M3NT said:

If you guys look at his Location, you'll see he's from Italy and I'm guessing that he's hinting at the fact that he's got the injectors setup(calibrated) as close to perfect as one can on PD injectors.
Hence the "Italian Style unit pd calibration".

Click to expand...

I saw that but its like he's taunting us that his injectors are uber secret Italian calibrated by himself or?

Is a joke I'm not here to brag.

Lucas1976 said:

Is a joke I'm not here to brag.

Click to expand...

It seems you are also here to keep information hidden...

Seriously - there are a lot of people in this thread (myself included) who would like to know how you got such close (good) injector balance readings?

You get perfect calibration readings with engine compression , tandem pump, cylinder head ,valve ,camshaft, lifter in excellent condition.
This is result of everything
injector response is conditioned by all these things...
Everywhere there are good professionals to calibrate injectors... just find them

Lucas1976 said:

You get perfect calibration readings with engine compression , tandem pump, cylinder head ,valve ,camshaft, lifter in excellent condition.
This is result of everything
injector response is conditioned by all these things...
Everywhere there are good professionals to calibrate injectors... just find them

Click to expand...

There are very few of these professionals here in North America. Informing us who you used might add to that list - care to share?

Of course this is Bosch center : http://www.pid88.it/

Drivbiwire said:

The ATD does not have the restriction channel.

Because of this, the pressure that builds behind the nozzle plate results in uniform pressure and volume delivery during the entire injection event.

Its a good body to upgrade.

Click to expand...

Then later in this thread

Lucas1976 said:

Pd injector body p1.3 8mm pump from euro 3 ATD engine Bosch code :0414720037 vw code 038 130 073 AJ have "restricted channel".
These bodyes with perfect calibration and firad +80% low delivery 13ccm/full load 37,5ccm
Bosio R783 can not provide more 'power to FIRAD 80% and restricted channel is a mistake does not result change.
Body Wear / pump is responsible for the delivery differences.
If you use one body same nozzle, pump, with different types of channel
there are no differences.
Sorry for my english

Click to expand...

Heeelp which is it?? lol
I've just ordered a set of 4x ATD (0414720037 vw code 038130073 AJ) injectors with the intention of having Firad +80% nozzles fitted as I **THINK** this thread would suggest this is the best combination which results in the best fuel flow/performance?

Did I get it right, or wrong?

Oh and I have ARL/PD150 injectors right now, so basically I have a choice between upgrading my cars ARL/PD150 nozzles, or these ATD nozzles with the Firad 80% nozzles and I need to know if I'm right in thinking the ATD will be a better combination for those nozzles.

Sorry for digging the subject up again, but could someone please answer Stonedofmoo's question?

According to volkswagen.7zap.c*m these are the part codes for the injector units for the ATD: 038 130 073 AJ
...and...
038 130 073 AG for the AXR.
The AXR should be similiar to the BEW; the ATD is the predecessor of the AXR on the European Market.

An online search for the Bosch-Numbers (their e-cat cataloge is down at the moment...) yields the following results:
038 130 073 AJ --> 0414720037
038 130 073 AG --> 0414720215

I am especially concerned with the ATD ones:
-do they have the restriction plate yes or no?
-in how far are they different to the AXR/BEW especially with regards to the different injection times?
-which ones are "better" (flow more, better efficiency)

I would highly appreciate if Drivbiwire could shed some light on this as he has already provided a lot of information. However, everyone is welcomed as I would really like to get an answer.

Greetings!

Hi, any news on this? I would really appreciate if someone could shed some light.

I am thinking about upgrading my atd injectors, because I got a GT1749va for 50 bucks and the compressor wheel of the old installed VNT15 has seen better times. I know that the clutch on the pd100 is supposed to be fairly weak, but what is the limit for the injectors?

Currently the PD100 ATD has injectors with code: 038 130 073 AJ.

How do they compare to 038 130 073 AG?
These were used in the PD100 AXR, that succeeded the ATD engine mainly for emissinos reasons though.
They were also used in the Golf MKV PD105 (engines BKC, BLS). A different version - 038 130 073 BN - was then used in the PD105 with engine code BLS.

In the BEW, which you folks have in the US, I found that 038 130 079 NX are used.

The reason I'm being such a paln in the ... here with these questions, is that I would like to know which of the aforementioned injectors are the most advanced and what their power output (limit) is.

I like the smaller injectors compared to the ASZ/ARL (PD130/150) ones, because they allow for a better atomization of fuel and since I am not planning on doing any further upgrades on my TDI (weak transmission in genereal, weak engine block...) I just want to make sure that the injectors can cope with the VNT17 (there are also some other light supporting mods already installed like a 2.5" downpipe, a smoothed airbox with dryflow filter, a bigger intake manifold and a larger SMIC).