Aftermarket Turbo inlet pipe solution for the F85/F86 S63TU platform

[Djhumvee]

Yeah, I know.. I'm gonna go ahead and do it lol.

[Chilled]

I do agree, it makes sense to do it. Opens up a few mounting options, but I still have that voice in the back of my head. Going on about doing it OEM style.

[Chilled]

Does anyone know if that green o-ring needs to be replaced as well? Just realised I didn't order it and its like 100+AUD local (or 80USD from US).

*EDit* Ok Grady, where is my angle grinder at?

Just found that the 2nd piece is broken and it looks like the PCV hose is busted. It has allot more oil moisture in it compared to 5-8.

And no I didn't brake the first one, I just touched whilst looking around and it poped out.

[Trion_f85]

If you’re talking about the green o-ring on the pcv pipe then i think it comes with pipe, it did when i replaced mine.

But i thought it was your intake boot that got cracked. Did you get to replace it?

[Chilled]

Nah, the green o-ring looking thing inside the compressor intel.

[Trion_f85]

But generally, air flow route gaskets dont need to be replaced unless if worn, unlike oil & coolant passages that can retain heat.

[zeroping]

Originally Posted by Chilled

Nah, the green o-ring looking thing inside the compressor intel.

I didn't replace mine when I did both inlets earlier this year, no issues being the low pressure side. Watch out for that open positive on the driver side lower bolt...that caught me by surprise!

[Chilled]

Cheers, yeah I wasn't sure how spicy that line was and put some rags over it.

[Chappo_f80]

Any update on the status on the inlets? Replaced mine twice already definitely need to find another option.

[Chilled]

Originally Posted by Chappo_f80

Any update on the status on the inlets? Replaced mine twice already definitely need to find another option.

My temp solution is going well, about 300 on the interim silicone intake. No Cell/issues. The billet inserts are holding up well.


more pics
https://f15.bimmerpost.com/forums/sh...3#post30749893

Almost done with the more permanent solution. Just need to sort our where I will put the AN bungs. The original place (and the one on the silicone one) does not work well.

Just waiting on some angled AN hose adapters to confirm new placement.

[Bobby_Drake]

I ended up reinforcing the weak areas where it breaks with high temp epoxy.

Holding up well so far - 10 months out.

[Chilled]

Had the AN bungs welded up, fitted the bank 1-4 PCV valve adapter. Full pipes fitted.

I do need to clean the weld oxides, but that's for another day. Really wanted those I'll fitting silicon bends out of there.

This is enough, for now.

[Cbozz]

hey all!!! If I made those turbo inlets out of carbon fiber - one piece. how many of you would want to buy them?
lets say the cost per set would be around $500... solid one piece carbon fiber looks the same shape as oem one just no ruffles... $500 is just a rough estimate but I guess it would probably cost in roams of that to get it going and make them... let me know what you all think but I would be down to make it... (not me but the manufacturer I know)

[Chilled]

I thought SR or someone else was already deep in R&D these. Didn't wanna self advertise. Yeah, if anyone wants a full set (aluminium billet turbo inlets, welded aluminium pipes, silicon connectors) happy to get a set together or the individual parts.

The welding/cutting and CNC machine is not my work. It all goes out to pros, just my designs from my 3D scans. The Alu pipes can have a 90° factory stile attachment to allow clip on to the factory PCV hose.

The billet inserts allow you to take the Alu pipe and the 90° silicon hose it slides into off the turbo whilst leaving the inserts bolted to the turbo. So you are not messing with that o-ring like the factory pipe.



Everything just bolts up.


Pricing is not going to be cheaper than Cbozz, (billet CNC parts). If people are interested, can dig up the what the total $$ was. Of the top of my head and conversations with the CNC shop and welder. The BOM on this would be close to $900-ish. Prob would go down if doing bulk (10+).


Also, do have the PCV valve cover to AN (or plain threaded) adapters. (The boss fitting in the top right COTS).

[mvrt]

Originally Posted by Chilled

I thought SR or someone else was already deep in R&D these. Didn't wanna self advertise. Yeah, if anyone wants a full set (aluminium billet turbo inlets, welded aluminium pipes, silicon connectors) happy to get a set together or the individual parts.

The welding/cutting and CNC machine is not my work. It all goes out to pros, just my designs from my 3D scans. The Alu pipes can have a 90° factory stile attachment to allow clip on to the factory PCV hose.

The billet inserts allow you to take the Alu pipe and the 90° silicon hose it slides into off the turbo whilst leaving the inserts bolted to the turbo. So you are not messing with that o-ring like the factory pipe.
Attachment 3386863
Attachment 3386864

Everything just bolts up.
Attachment 3386865

Pricing is not going to be cheaper than Cbozz, (billet CNC parts). If people are interested, can dig up the what the total $$ was. Of the top of my head and conversations with the CNC shop and welder. The BOM on this would be close to $900-ish. Prob would go down if doing bulk (10+).


Also, do have the PCV valve cover to AN (or plain threaded) adapters. (The boss fitting in the top right COTS).
Attachment 3386866

Sorry folks, I have since moved on from the platform and the shops I had been working with just sort of stopped communicating about this project. So please, do carry on if you already have a tangible solution!

[anthonyursino]

Originally Posted by Chilled

Had the AN bungs welded up, fitted the bank 1-4 PCV valve adapter. Full pipes fitted.

I do need to clean the weld oxides, but that's for another day. Really wanted those I'll fitting silicon bends out of there.

This is enough, for now.

Hi Chilled,

Have had my intake pipes crack due to the crappy BMW rubber. How did this turn out in the end? Looking into getting a custom set like yours made but im just curious how its holding up and wether you saw a difference in engine performance? Its a shame MVRT couldnt get those parts made he wouldve made a killing XD. Any advice or information would be greatly appreciated guys!

Thanks

[Chilled]

Originally Posted by anthonyursino

Hi Chilled,

Have had my intake pipes crack due to the crappy BMW rubber. How did this turn out in the end? Looking into getting a custom set like yours made but im just curious how its holding up and wether you saw a difference in engine performance? Its a shame MVRT couldnt get those parts made he wouldve made a killing XD. Any advice or information would be greatly appreciated guys!

Thanks

it's holding up great, the Alu pipes have about 1,000 Km. billets inserts 1,500 km and AN valve cover adapters over 2,000km. All holding up well no errors/issues/leaking. No oil in the turbo pipes due to valve cover adapters.

No idea on performance, my main goals were to get rid of that plastic and make this thing easier to work on. The OE plastic are a total PITA to remove, a general pain to disconnect from the airbox, all whilst risking breaking them. On mine it take 30s to remove both the pipes as you don't need to remove the billet inserts. Just undo the 2x T-bolt clamps and pull pipe out. The billet inserts stay where they are so no PITA of removing that internal bolt or messing with the turbos o-rings.

I don't know about the $$$ killing, the OE pipes are cheap but the R&D + material cost on these is not. This is an aging platform and these pipe will only work with F85/F86 as the 50i have different turbo insert side. The days when owners of this platform would spend $1,000 USD on a single flat piece of Carbon fibre that would do f*ck all, but discolour and look ugly AF, are all gone. All those owners have moved up to the F95's.
https://www.dinancars.com/products/i...arts/D760-0047
I cant speak for Cbozz, but I haven't had a single person reach out about getting the kit or individual parts.

Good luck on getting these made, keep in mind that neither side is identical. Post up the pics when you have some.

[zeroping]

Originally Posted by Chilled

Yeah, if anyone wants a full set (aluminium billet turbo inlets, welded aluminium pipes, silicon connectors) happy to get a set together or the individual parts.

The welding/cutting and CNC machine is not my work. It all goes out to pros, just my designs from my 3D scans. The Alu pipes can have a 90° factory stile attachment to allow clip on to the factory PCV hose.

The billet inserts allow you to take the Alu pipe and the 90° silicon hose it slides into off the turbo whilst leaving the inserts bolted to the turbo. So you are not messing with that o-ring like the factory pipe.

I'm interested in a full set. Could I maintain factory PCV now and swap if I decided to add a catch-can down the road?

Anything I can do to get ride of those pesky plastics is of interest. I've already replaced three of these as of 75k miles and sense another set soon.

This platform has been a fun and I've learned quite a bit from it. Most reliable vehicle I've had to date, though, has it's own character like anything else. I intend to keep the F85 around for the foreseeable future. I'll be around.

[pachieh]

This would be interesting if the price would get down to $500 a set and having it thermal coated to resist heat from the engine bay…

[Chilled]

Lol, just as I said no one was interested.

Originally Posted by zeroping

I'm interested in a full set. Could I maintain factory PCV now and swap if I decided to add a catch-can down the road?

Yep possible, the question would be how would you like to have this interim setup looking like?

As far as I can see, the cleanest and most professional looking would be to do weld the same AN bung( like mine), use a Female to Male 90° AN fitting and then machine a fitting that would thread on to the make AN and clip into the flapper valve clips.

Similar to these clip-ins I made up as a temp solution for a hose to slide on, but designed to thread onto a Male AN fitting.


90° AN


However doing this would increase the cost by at least $200-300.
2 x COTS Female to Male -10 AN fittings = $80USD -ish (AN stuff is not cheap in AUS)
2 x Custom made Female -10 AN to Flapper clip in = $150-ish (need to actually confirm).


The other options is to skip the custom Female to AN Flapper clip on adapter and simply break of the clips and the use a 1" heater hose.
ie.


or thread into front of the flapper valve(
as per https://f15.bimmerpost.com/forums/sh...6&postcount=52).

If breaking clip route, the 1" heater hose fits perfect over the flapper valve o-ring and over -12AN male side. But for this you would need to run a -12AN 90° Female to male.

Also welding on a simple 90° bended 1" pipe is not really a good solution as whilst the meterial cost is low, the labor hours would not be. The issue with doing this route is that you need to hit the angle to where the flapper valve is positioned fairly accurately. If you are off, the valve will either hit that metal shroud covering the turbos or the HPFP wiring. Hence, the labor cost of dicking around with the angle.

Originally Posted by pachieh

This would be interesting if the price would get down to $500 a set and having it thermal coated to resist heat from the engine bay…

I think Cbozz is working on that price point solution.


If you like, I can do just the billet inserts. I would need to double check what the CNC shop will change now (I had these made last year as a one-off). Assuming they don't increase, they ran me around $350-ish.

From there you are free to weld on/or make your own bends. If you don't need things welded, you could prob go the hacky silicone hoses route with some straight pipes. However when I tried it that (hence going welded alu), they were an absolution PITA to connect up.