DPF Delete

BB_cuda · 07-11-2014, 04:08 PM

Quote:

Originally Posted by 2deerwhistlers

Cuda I'm glad you got things situated with the downpipe.. Get ready for some fun!

All back together and took it for a drive. All I have to say is WOW!

335dlci · 07-11-2014, 04:33 PM

Quote:

Originally Posted by BB_cuda

Quote:

Originally Posted by 2deerwhistlers

Cuda I'm glad you got things situated with the downpipe.. Get ready for some fun!

All back together and took it for a drive. All I have to say is WOW!

Was it worth it?

joe_planet · 07-11-2014, 04:40 PM

omg i'm so jealous i peed my pants!!! er excited!!!

I want to do the same deal on my x5 eventually.

BB_cuda · 07-11-2014, 04:42 PM

Your probably asking the wrong guy. I normally leave late model cars alone. $1250 mod is a large excursion for me.

A different question is " did I expect it to make this big of a difference?". Answer is it has exceeded my expectations so far. I only went for a 10 minute drive but let it warm up while I showered.

I only got to nail it once or twice. The freeway is all jammed up right now so I took a couple surface streets. I will have some lessons learned and a couple tool tips. I found a piece of rubber "bump stop" like part on ground when I was picking up tools. This may have been related to me jacking the engine up. I will take a photo and post it tonight. Hopefully someone here can ID it for me.

BB_cuda · 07-11-2014, 05:09 PM

Quote:

Originally Posted by TDIwyse

I bolted the pipe to the turbo with the v-band as the LAST step. It's a perfectly round connection so can easily rotate...

What I did do was aligned the midpipe to the DPF first, with bolts loosely attached, then got everything else loosely attached, then did the v-band most of the way, then tightened the remaining bolts/attachments, and finished tightening the v-band. If you do the v-band first it's quite likely a lot of other things won't align properly.

Hope this helps.

I just reread this and realized you meant something I didn't realize. I did not remove bolts on the pipe (one with SCR) where it mounts to body . That would provided more give to achieve flange alignment. Owe well, I was tired and a little frustrated.

TDIwyse · 07-11-2014, 08:43 PM

Quote:

Originally Posted by BB_cuda

I just reread this and realized you meant something I didn't realize. I did not remove bolts on the pipe (one with SCR) where it mounts to body . That would provided more give to achieve flange alignment. Owe well, I was tired and a little frustrated.

No problems. I used some language during the procedure I don't normally utter...

Congrats on getting it up and running!

I took a pic as best I could of my O2 sensor. It's not close to interfering with anything. Is this the place you were having some clearance issues? Or are you referring to the NO2 sensor down further towards the bottom?

BB_cuda · 07-12-2014, 09:30 AM

Where the foil corrugated material meets the O2 sensor body or actually just a little bit up on the corrugated is where I have interference. After the O2 is all the way screwed in, the pressure isn't as bad. After looking at your photo, your O2 bung has a better angle on it than mine does.

I don't know if all 10 production units will be the same or if I got an odd ball. Word to wise, screw this thing in AND do the final torque on it prior to doing the other stuff. I didn't do final tightening on it and had to pay a small price for it. My O2 sensor crow foot tool couldn't slip past interference point. My 22 mm open end wrench (nice craftsman) was way too long. So, I went to O'reilly auto and bought their house brand 22 mm wrench for $11. I cut it to a 4" length and ground the cut smooth. That was what I used for final torque.

I will be curious when some of the others get started about this bung placement. Please let me know.

iaknown · 07-12-2014, 10:32 AM

Quote:

Originally Posted by BB_cuda

Where the foil corrugated material meets the O2 sensor body or actually just a little bit up on the corrugated is where I have interference. After the O2 is all the way screwed in, the pressure isn't as bad. After looking at your photo, your O2 bung has a better angle on it than mine does.

I don't know if all 10 production units will be the same or if I got an odd ball. Word to wise, screw this thing in AND do the final torque on it prior to doing the other stuff. I didn't do final tightening on it and had to pay a small price for it. My O2 sensor crow foot tool couldn't slip past interference point. My 22 mm open end wrench (nice craftsman) was way too long. So, I went to O'reilly auto and bought their house brand 22 mm wrench for $11. I cut it to a 4" length and ground the cut smooth. That was what I used for final torque.

I will be curious when some of the others get started about this bung placement. Please let me know.

How did your sensors screw in? Any issues?

The M20 bung on my pipe looks pretty rough. It may be fine but I'm going to run a tap in before it gets installed just to be safe....

joe_planet · 07-12-2014, 10:35 AM

Since the pipe is smaller and custom they could have placed the bungs liberally.

BB_cuda · 07-12-2014, 10:47 AM

Quote:

Originally Posted by iaknown

How did your sensors screw in? Any issues?

The M20 bung on my pipe looks pretty rough. It may be fine but I'm going to run a tap in before it gets installed just to be safe....

Threading was normal. No binding occurred. My issue was angle of sensor relative to bung. It wasn't even close to get thread started.

GottaBeKD · 07-12-2014, 11:28 AM

Quote:

Originally Posted by BB_cuda

Quote:

Originally Posted by iaknown

How did your sensors screw in? Any issues?

The M20 bung on my pipe looks pretty rough. It may be fine but I'm going to run a tap in before it gets installed just to be safe....

Threading was normal. No binding occurred. My issue was angle of sensor relative to bung. It wasn't even close to get thread started.

Can't you just splice some extra wire inline to extend the length of the sensor wires? Done correctly there should not be any issues with increased resistance.

BB_cuda · 07-12-2014, 11:59 AM

Quote:

Originally Posted by GottaBeKD

Can't you just splice some extra wire inline to extend the length of the sensor wires? Done correctly there should not be any issues with increased resistance.

Read earlier in thread please. The O2 sensor body (made of metal) was interfering with adjacent turbo bracket of some sort. This is ONLY if you wait to screw it in after you connect back flange and turbo v band clamp. No need to modify the harness if you just switch the order. I strongly suggest to first screw in this forward O2 sensor and torque it tight ( as in your done with it).

BB_cuda · 07-12-2014, 12:03 PM

I got to drive the car in more light traffic this morning. It lunges forward now when skinny pedal is "nailed". It has more growl now too. I hear just a hint of turbo whistle if windows open ( was hoping to hear this). Big smiles here. Can't wait for others to get theirs in.

2deerwhistlers · 07-12-2014, 12:52 PM

Quote:

Originally Posted by GottaBeKD

Quote:

Originally Posted by BB_cuda

Quote:

Originally Posted by iaknown

How did your sensors screw in? Any issues?

The M20 bung on my pipe looks pretty rough. It may be fine but I'm going to run a tap in before it gets installed just to be safe....

Threading was normal. No binding occurred. My issue was angle of sensor relative to bung. It wasn't even close to get thread started.

Can't you just splice some extra wire inline to extend the length of the sensor wires? Done correctly there should not be any issues with increased resistance.

Resistance In the circuit shouldn't matter because those sensors are basically just plugs now

GreekboyD · 07-12-2014, 02:17 PM

How many of you guys are removing your DPF altogether instead of just coding it out?

BB_cuda · 07-12-2014, 02:30 PM

Quote:

Originally Posted by GreekboyD

How many of you guys are removing your DPF altogether instead of just coding it out?

I don't think coding it out would be good as it would no longer have regens and then it would clog up.

Iaknown asked me a question about weld and I jest now saw it. Yes the welds at the flanges were a little dissapointing. I just thought they were cold welds. Now that you mention mig instead of tig, I see your point. The flanges are magnetic so they are either 400 series SS (we hope) or normal steel (not preferred).

TDIwyse · 07-12-2014, 02:39 PM

Quote:

Originally Posted by 2deerwhistlers

Resistance In the circuit shouldn't matter because those sensors are basically just plugs now

I'm pretty sure the O2 and EGT sensors are doing more than just being plugs. I haven't been able to quantify any differences if the NOx sensors are in or out of the exhaust stream.

GreekboyD · 07-12-2014, 02:47 PM

Quote:

Originally Posted by BB_cuda

I don't think coding it out would be good as it would no longer have regens and then it would clog up.

Iaknown asked me a question about weld and I jest now saw it. Yes the welds at the flanges were a little dissapointing. I just thought they were cold welds. Now that you mention mig instead of tig, I see your point. The flanges are magnetic so they are either 400 series SS (we hope) or normal steel (not preferred).

Sorry BB_cuda as I'm unclear. Are you referring to the Ecotune DP in your second paragraph or the DPF on the 335d. I'm assuming the DP. Have you fully removed the DPF and intend to drive without it?

2deerwhistlers · 07-12-2014, 02:48 PM

Quote:

Originally Posted by TDIwyse

Quote:

Originally Posted by 2deerwhistlers

Resistance In the circuit shouldn't matter because those sensors are basically just plugs now

I'm pretty sure the O2 and EGT sensors are doing more than just being plugs. I haven't been able to quantify any differences if the NOx sensors are in or out of the exhaust stream.

I was under the impression that only the first egt sensor is active.. You would know better

TDIwyse · 07-12-2014, 03:42 PM

Quote:

Originally Posted by 2deerwhistlers

I was under the impression that only the first egt sensor is active.. You would know better

This is based on still seeing the pre/post DPF EGT probes in the Bavarian Technic tool (although their temps are now basically the same all the time), and Stan saying the O2 information is still used in the fueling parameters, and EGT safety levels are still in place.

Although it does seem silly that all 3 exhaust EGT probes are still being used... triple redundancy.

BB_cuda · 07-12-2014, 06:05 PM

Quote:

Originally Posted by GreekboyD

Sorry BB_cuda as I'm unclear. Are you referring to the Ecotune DP in your second paragraph or the DPF on the 335d. I'm assuming the DP. Have you fully removed the DPF and intend to drive without it?

I was referring to welds on the Ecotune DP.

Yes, DPF is no mas. Driving err'' off roading with Ecotune pipe.

GreekboyD · 07-12-2014, 06:12 PM

Quote:

Originally Posted by BB_cuda

I was referring to welds on the Ecotune DP.

Yes, DPF is no mas. Driving err'' off roading with Ecotune pipe.

So are you not completely satisfied with the Ecotune DP?

07-11-2014, 04:40 PM	#1323
joe_planet Captain 43 Rep 800 Posts Drives: 2011 X5d Join Date: Apr 2013 Location: DFW iTrader: (1)	omg i'm so jealous i peed my pants!!! er excited!!! I want to do the same deal on my x5 eventually.
	Appreciate 0 Quote

07-11-2014, 04:42 PM	#1324
BB_cuda Brigadier General 779 Rep 3,559 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	Your probably asking the wrong guy. I normally leave late model cars alone. $1250 mod is a large excursion for me. A different question is " did I expect it to make this big of a difference?". Answer is it has exceeded my expectations so far. I only went for a 10 minute drive but let it warm up while I showered. I only got to nail it once or twice. The freeway is all jammed up right now so I took a couple surface streets. I will have some lessons learned and a couple tool tips. I found a piece of rubber "bump stop" like part on ground when I was picking up tools. This may have been related to me jacking the engine up. I will take a photo and post it tonight. Hopefully someone here can ID it for me. Last edited by BB_cuda; 07-11-2014 at 04:47 PM..
	Appreciate 0 Quote

07-12-2014, 09:30 AM	#1327
BB_cuda Brigadier General 779 Rep 3,559 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	Where the foil corrugated material meets the O2 sensor body or actually just a little bit up on the corrugated is where I have interference. After the O2 is all the way screwed in, the pressure isn't as bad. After looking at your photo, your O2 bung has a better angle on it than mine does. I don't know if all 10 production units will be the same or if I got an odd ball. Word to wise, screw this thing in AND do the final torque on it prior to doing the other stuff. I didn't do final tightening on it and had to pay a small price for it. My O2 sensor crow foot tool couldn't slip past interference point. My 22 mm open end wrench (nice craftsman) was way too long. So, I went to O'reilly auto and bought their house brand 22 mm wrench for $11. I cut it to a 4" length and ground the cut smooth. That was what I used for final torque. I will be curious when some of the others get started about this bung placement. Please let me know.
	Appreciate 0 Quote

07-12-2014, 10:35 AM	#1329
joe_planet Captain 43 Rep 800 Posts Drives: 2011 X5d Join Date: Apr 2013 Location: DFW iTrader: (1)	Since the pipe is smaller and custom they could have placed the bungs liberally.
	Appreciate 0 Quote

07-12-2014, 12:03 PM	#1333
BB_cuda Brigadier General 779 Rep 3,559 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	I got to drive the car in more light traffic this morning. It lunges forward now when skinny pedal is "nailed". It has more growl now too. I hear just a hint of turbo whistle if windows open ( was hoping to hear this). Big smiles here. Can't wait for others to get theirs in.
	Appreciate 0 Quote

07-12-2014, 02:17 PM	#1335
GreekboyD Brigadier General 411 Rep 3,051 Posts Drives: 2009 BMW 335d Join Date: Jan 2012 Location: Toronto, ON, Canada iTrader: (0) Garage List 2009 BMW 335d [8.00]	How many of you guys are removing your DPF altogether instead of just coding it out?
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