Chef's E39 530d

[DieselFan]

Looks hot.

Listen to the turbo sounds from now on and I hope you told the guy that took your back box off to keep it around for future. The reason I say that is because when I removed my back box from my 330d was when shit started going wrong with my turbo...The down pipe and decat makes the turbo over spool allot already which gives you that faster response, but when you remove the back box as well then your almost running a straight pipe and this made my turbo over spool like a frikken tornado and eventually my turbo exploded into about 6 pieces with a very loud bang and a volcano worth of smoke.

Now I am not saying that this was the exact reason that my turbo exploded like that, but as far as BMW was concerned and allot of other places I had diagnose my car all of them were quite certain that my exhaust setup had caused my turbo to over spool and led to its destruction. (BMW said that this was 100% the reason for the failure!) I am just relaying the report I got from them to you.

Other people have been running similar setups for quite a while with no problems but that might just be because these turbos don't break that easily and its just a matter of time or there cars still have relatively low mileage, it also depends how aggressive the software is on the car and of course how you drive it.
Many will argue that No back pressure is the best thing for a turbo car but a diesel boosts higher pressures than petrol cars by far, So the turbo spools up and down allot faster and thus heats up much faster, heat causes the turbine blades to expand and in turn touch the housing leading to a catastrophic failure.

I am just giving a word of caution, maybe hook the car up to software that can monitor your turbo under normal and aggressive driving conditions to see how its behaving, better to be safe than sorry, it was a FOKKEN expensive ordeal for me. you end up replacing lots of parts.

But other than that, its looking seriously hot, looks very similar to the tips I had put on my 330d.

I highly highly doubt that is the issue or cause of your problems. It was more than likely an overly aggressive map.

There are many many people who are running full freeflow exhausts with downpipes bigger than he has on his car. You gain the most from the downpipe. And the turbo is running off exhaust gasses it can't over spool from having no backpressure only spool quicker. And the minimal extra heat generated from the quicker spool is more than likely negated and then some from the extra cooling from the downpipe.

I wouldn't trust a word bmw says. They are just part fitters. Nothing else. Theit process is it could be this let's change it. Not that ok. Let's change this. Until you're driving a new car.

 

[ChefDJ]

My remap is not an aggressive one. And I don't race the car. The power is there for when I need it.

I did a dyno once...

:fencelook:

 

[Nikhil]

Looks hot.

Listen to the turbo sounds from now on and I hope you told the guy that took your back box off to keep it around for future. The reason I say that is because when I removed my back box from my 330d was when shit started going wrong with my turbo...The down pipe and decat makes the turbo over spool allot already which gives you that faster response, but when you remove the back box as well then your almost running a straight pipe and this made my turbo over spool like a frikken tornado and eventually my turbo exploded into about 6 pieces with a very loud bang and a volcano worth of smoke.

Now I am not saying that this was the exact reason that my turbo exploded like that, but as far as BMW was concerned and allot of other places I had diagnose my car all of them were quite certain that my exhaust setup had caused my turbo to over spool and led to its destruction. (BMW said that this was 100% the reason for the failure!) I am just relaying the report I got from them to you.

Other people have been running similar setups for quite a while with no problems but that might just be because these turbos don't break that easily and its just a matter of time or there cars still have relatively low mileage, it also depends how aggressive the software is on the car and of course how you drive it.
Many will argue that No back pressure is the best thing for a turbo car but a diesel boosts higher pressures than petrol cars by far, So the turbo spools up and down allot faster and thus heats up much faster, heat causes the turbine blades to expand and in turn touch the housing leading to a catastrophic failure.

I am just giving a word of caution, maybe hook the car up to software that can monitor your turbo under normal and aggressive driving conditions to see how its behaving, better to be safe than sorry, it was a FOKKEN expensive ordeal for me. you end up replacing lots of parts.

But other than that, its looking seriously hot, looks very similar to the tips I had put on my 330d.

I highly highly doubt that is the issue or cause of your problems. It was more than likely an overly aggressive map.

There are many many people who are running full freeflow exhausts with downpipes bigger than he has on his car. You gain the most from the downpipe. And the turbo is running off exhaust gasses it can't over spool from having no backpressure only spool quicker. And the minimal extra heat generated from the quicker spool is more than likely negated and then some from the extra cooling from the downpipe.


I wouldn't trust a word bmw says. They are just part fitters. Nothing else. Theit process is it could be this let's change it. Not that ok. Let's change this. Until you're driving a new car.

+1 on what Alex said for once :fishwack:

 

[herr bmw]

well to be quite honest,i believe it should be left the way it was designed.car manufactures spend millions designing things and even more money perfecting it.

after taking the Nissan navara to promotec and battling,even to a point where the bakkie just wouldn't run anymore,and now spending even more money to get it back to a running condition was a real waste of money,in fact I wonder if people who do not work at proper dealers actually know what they are doing,as I have found out.the standard intercooler is more than adequate to cool the air and there was no need to change it,but a tuner told me it had to be changed, which just goes to show me that they do not do research or do not know what they are doing,all they are trying to do is make money.

so for me I will keep the car standard as it was designed by the manufacture ,even if it means the local dealer just swopping out parts

if you want more power,buy a more powerful car,simple

 

[ChefDJ]

I didn't do the downpipe for more power. I did it for maintenance, to protect the turbo.

 

[Andy1GP]

Your car is now much healthier Dyllan :thumbs: Only thing I'm curious about is why they did a 63mm DP and 76 pipe to the rear? I did the exact opposite to mine. 76mm DP for 90mm length into a 63mm straight pipe right through.

I doubt you would notice any difference on your setup and software config anyways. Just curious as to why they chose to do it that way around.

Also +1 to what alex said. Turbo won't go pop from dispelling exhaust gas more easily. In fact the opposite is true. It will last longer.

Enjoy the new found sound and quicker boost spoolup

 

[ChefDJ]

Thanks Andy :ty:

The initial plan was to do 76mm downpipe but they said they had some difficulty getting the 76mm to fit properly.

I hear a lot of air coming out the exhaust now so I'm guessing the pipes are sufficient. I really don't drive her that hard

 

[Andy1GP]

Oh and to add I've done 20k + km's with the full straight pipe setup and software. Happy as ever

 

[Silverbird_96kw]

Reason for them not doing the 76mm with the down pipe they couldn't do the mandrel bends

 

[ChefDJ]

Oh and to add I've done 20k + km's with the full straight pipe setup and software. Happy as ever

I still have a middle box :fencelook:

Reason for them not doing the 76mm with the down pipe they couldn't do the mandrel bends

What he said :fencelook:

 

[Andy1GP]

Dyllan if your car sounds anything like Sash's 530d then I'm extremely jealous. I'm not a fan of my car's sound at idle. Sounds sickly TBH however... Weight saving FTW :roflol:

 

[ChefDJ]

:biglol:


I'll post a sound clip when I can.

 

[ChefDJ]

E39 530d 63mm downpipe, backbox removed.:

 

[Silverbird_96kw]

:fencelook:

 

[RAArmstrong]

:inlove:

 

[anton-sa]

sounds good. i wonder what the effect and or sound would be like if you removed the center box and left the rear box in place ??/

 

[ChefDJ]

No idea :fencelook:

 

[herr bmw]

oh boy........

trying to make it sound like mine?????

never taking you for a ride in my car again:fencelook:

 

[WyKiD]

Car sounds wicked, not bad for an oiler...:rollsmile:

 

[ChefDJ]

:rollsmile: