[Kjelly]

Originally Posted by Chief Orman

Embarrassing question time but what exactly is the water meth kit attaching to to read the boost psi? How does it tap the sensor?

I don't know...TDIwyse has a few posts of where he attached the unit. Sorry, the installer did it all.

[Chief Orman]

Originally Posted by stevers314

Sounds like they may have not secured the lower charge pipe connection. I'm very curious about the oil issue being there was no need to tap into the lubrication system.


Also 10psi is going to be too low for the nozzles. 15 is the lowest starting point i've found where that nozzle won't cause quench often.

Stevers per my very basic question above? Where does on tap the water/meth system into the car so that it can read the turbo boost pressure?

[stevers314]

Originally Posted by Chief Orman

Stevers per my very basic question above? Where does on tap the water/meth system into the car so that it can read the turbo boost pressure?

Metal portion of charge pipe

[Chief Orman]

Originally Posted by stevers314

Metal portion of charge pipe

Sorry to be thick Stevers, but how and what exactly is the water meth system reading off to get the boost numbers? Are you somehow splicing into a preexisting sensor?

[TDIwyse]

Originally Posted by Chief Orman

... Are you somehow splicing into a preexisting sensor?

If you drill and tap the intake charge pipe with a barb fitting you can route a tube to your boost controller (assuming it has a barb fitting and its own internal pressure gauge). Most controllers I've looked at have this option.

Alternatively, you can tap into the boost sensor for an electrical version (item10 here).

http://www.realoem.com/bmw/enUS/show...diagId=11_3876

[Chief Orman]

Thanks!

[jackstrath]

could you not T into one of the vacume lines on the underside of the intake mani ?

[Hoooper]

Originally Posted by jackstrath

could you not T into one of the vacume lines on the underside of the intake mani ?

There are no tubes connected to the manifold. The vacuum lines just run to the vacuum pump and wouldn't have anything in common with the boost level.

[jackstrath]

bit of a random bump here , have since seen why you cant T into the lines as i mentioned above ,

but whats stopping you taking a T off the big turbo compressor side? there is already a small braided black hose running from it

[DWR]

Originally Posted by jackstrath

bit of a random bump here , have since seen why you cant T into the lines as i mentioned above ,

but whats stopping you taking a T off the big turbo compressor side? there is already a small braided black hose running from it

You may find this helpful when trying to determine the function of a part.
http://www.realoem.com/bmw/enUS/sele...&prod=20090600
Also referring to a diagram helps others understand.
Cutting an oil line on a turbo could become expensive.

[jackstrath]

Originally Posted by DWR

You may find this helpful when trying to determine the function of a part.
http://www.realoem.com/bmw/enUS/sele...&prod=20090600
Also referring to a diagram helps others understand.
Cutting an oil line on a turbo could become expensive.

as far as im aware the oil line doesnt go onto the compressor , it go's onto the turbos core it self so there would be no cutting of a oil line

with reference to this diagram item 12/14

http://www.realoem.com/bmw/enUS/show...diagId=11_3985

that to me looks like it would be off a barb on the comp housing , wont get vacuum there i dont think but you should get positive pressure

could also be the actuator feed , kinda hard to tell

[DWR]

Originally Posted by jackstrath

with reference to this diagram item 12/14
http://www.realoem.com/bmw/enUS/show...diagId=11_3985
that to me looks like it would be off a barb on the comp housing , wont get vacuum there i dont think but you should get positive pressure
could also be the actuator feed , kinda hard to tell

Yep, that's the diagram. It clearly states "VACUM CONTROL-ENGINE-TURBO CHARGER" (vacuum misspelled in the website). Those lines control the wastegates and bypass, using vacuum and DDE controlled valves. It allows more precise control by the DDE versus mechanical actuation via boost pressure.

[jackstrath]

Right sorry il word it again as I see here is two pipes numbered 12 :/ lol

What does pipe 14 (the join 13) run to and from? As that imo looks where you could tie into to get boost pressure

[TDIwyse]

Originally Posted by jackstrath

Right sorry il word it again as I see here is two pipes numbered 12 :/ lol

What does pipe 14 (the join 13) run to and from? As that imo looks where you could tie into to get boost pressure

Those vacuum lines are for controlling the compressor bypass valve, turbine control valve and the LP turbo wastegate. None of those things have the boost pressure.

[Hoooper]

I dont believe there are any lines on the engine that can be teed into to get boost pressure. Boost pressure is read by a sensor directly attached to the intake manifold. All the lines you will see are vacuum lines fed from the vacuum pump and would have no relation to boost pressure. Thinking my way visually through all the turbo piping and the compressor housings, I cant think of any lines that connect anywhere in the system, the only connections are plugged directly by sensors. It wouldnt be very time consuming or difficult to drill and tap a 1/8" NPT opening to install a fitting for a boost sensor. I wouldnt do it in the plastic, but the charge pipe would be fine, right above the IAT.

[DWR]

Originally Posted by jackstrath

Right sorry il word it again as I see here is two pipes numbered 12 :/ lol

What does pipe 14 (the join 13) run to and from? As that imo looks where you could tie into to get boost pressure

Specifically, that vacuum line goes to the wastegate.

[BEWWWM]

Have any of you tried the Nitrous Express diesel stage 2 water/methanol kit? I liked their products when I running n2o on LSX cars. Their kit looks like a decent deal.

http://www.nitrousexpress.com/15031-...l-stage-2.html

[Whitbread]

Originally Posted by BEWWWM

Have any of you tried the Nitrous Express diesel stage 2 water/methanol kit? I liked their products when I running n2o on LSX cars. Their kit looks like a decent deal.

http://www.nitrousexpress.com/15031-...l-stage-2.html

For a small amount more, the top of the line aquamist system offers a much better bang for the buck in terms of features and control. Since the AM system runs the pump at full pressure and pwm pulses the nozzles to control delivery, you can run a small pre turbo nozzle to gain compressor efficiency. Water/meth nozzles don't atomize well at all at low delivery pressures, see this video to demonstrate. Here's how a pwm controlled nozzle behaves. DWR posted some excellent information on this subject somewhere around here with more videos on the subject also.

[BEWWWM]

Thanks for the info!

[gtp900]

Just wanted to update this thread, after 2 years of running a methanol kit on my car I finally decided to have my cars first Cbu cleaning.
Ok so the background, I purchased the my 2011 335d 2 years ago almost to the day with approx 60,000 miles, I looked up the history on it and it had never received a Cbu cleaning ever. The first thing I did was install block off plates for the egr within the first few weeks I owned it. The next thing I did was install the meth kit a few weeks after that. I ran the car that way for almost exactly 1 year, then I tuned the car and did all the deleted except for the scr at approx 90,000mi. I then drove the car for another year almost to the date with those mods when I finally got around to "emptying" the scr,(also deleted muffs and added tips ). A week later,( this week) I brought the car in to a local shop and had the Cbu cleaning, at 122,xxxmi. I was anxious to see the results! The good news is the methanol seemed to work! So the verdict is in, meth cleans up the Cbu with very good results!
These are the pics Before the cleaning

[gtp900]

Originally Posted by gtp900

Just wanted to update this thread, after 2 years of running a methanol kit on my car I finally decided to have my cars first Cbu cleaning.
Ok so the background, I purchased the my 2011 335d 2 years ago almost to the day with approx 60,000 miles, I looked up the history on it and it had never received a Cbu cleaning ever. The first thing I did was install block off plates for the egr within the first few weeks I owned it. The next thing I did was install the meth kit a few weeks after that. I ran the car that way for almost exactly 1 year, then I tuned the car and did all the deleted except for the scr at approx 90,000mi. I then drove the car for another year almost to the date with those mods when I finally got around to "emptying" the scr,(also deleted muffs and added tips ). A week later,( this week) I brought the car in to a local shop and had the Cbu cleaning, at 122,xxxmi. I was anxious to see the results! The good news is the methanol seemed to work! So the verdict is in, meth cleans up the Cbu with very good results!
These are the pics Before the cleaning

This is a pic of the intake where the egr was connected at 60,000mi before I installed the meth kit, I can only imagine how bad the rest of the intake looked...

[gtp900]

Originally Posted by gtp900

This is a pic of the intake where the egr was connected at 60,000mi before I installed the meth kit, I can only imagine how bad the rest of the intake looked...

Another pic with a little better quality of before meth kit 60,000mi