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      05-16-2011, 10:07 AM   #23
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Quote:
Originally Posted by Turbo Squid View Post
All seems normal until I look at the top side plumbing of the airboxes being fed right back into the intake stream.

1. There has got to be some sort of air pressure barrier to keep the boosted portion of the lines from blowing back out the air inlets no?

They've cleverly integrated the boost diverter valves right there at the turbo intake/charge pipe outlet. From the more side photo, you can see the air boost pressure hose just above the white dot on the intake.

Nice job M group!
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      05-16-2011, 10:19 AM   #24
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      05-16-2011, 10:21 AM   #25
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I'm trying to understand where all the plumbing goes. It looks like there are 4 intake paths with 4 air filters. Right before the compressor, there's a junction. If you follow the two outside tracks, it goes to what looks like an air box. The two inside tracks look like they go to intercoolers.

If they are going to liquid intercoolers, I'm wondering if that's because of all the trouble they had with the 335. At the same time, I haven't really heard of any trouble with the turbo V8s, but I'm not really sure about that.
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      05-16-2011, 10:24 AM   #26
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Some very nice X5/X6 M engine pics are here, for comparison =>

http://www.xbimmers.com/forums/showthread.php?p=5734439

One thing people seem to forget about the N63/S63 is it is an inverted setup - the intake is on the bottom of the heds while the exhaust is on the top.
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      05-16-2011, 10:32 AM   #27
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      05-16-2011, 10:35 AM   #28
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581 hp
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      05-16-2011, 10:36 AM   #29
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Wooow!!
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      05-16-2011, 10:50 AM   #30
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      05-16-2011, 11:05 AM   #31
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wow.. All tuning company will have fun with this engine, see now much Hp can they squeeze ahhahaha
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      05-16-2011, 11:08 AM   #32
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Quote:
Originally Posted by e90pilot View Post
I'm trying to understand where all the plumbing goes. It looks like there are 4 intake paths with 4 air filters. Right before the compressor, there's a junction. If you follow the two outside tracks, it goes to what looks like an air box. The two inside tracks look like they go to intercoolers.
The two wide set pipes are attached to airboxes at their ends. They feed the turbos. The narrow set piping takes the compressed air and sends it to the intercoolers.. and then on to the engine. There is no junction, it just looks like it because of the angle. Remember that the turbos are mounted on the topside of the engine.
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      05-16-2011, 11:10 AM   #33
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Quote:
Originally Posted by Turbo Squid View Post
This design looks interesting.

I haven't searched to see the X5/6M setups but I'm wondering something.

I'm assuming the turbos are on level with the exhaust ports which is pretty typical and seems to be the case since the bottom of the intercoolers are right there to cool the gases coming out of them.

Is it safe to assume that there is some air intake plumbing on the bottom side of the airboxes that feed the snails?

All seems normal until I look at the top side plumbing of the airboxes being fed right back into the intake stream.

1. There has got to be some sort of air pressure barrier to keep the boosted portion of the lines from blowing back out the air inlets no?

2. Perhaps these are in line with the boosted plumbing so that more air can be pulled into the system by the boosted flow?

What do you guys think/know about this?
Nothing is being fed back in... it just looks like it. Turbos are on top of the engine.
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      05-16-2011, 11:12 AM   #34
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For starters it looks like the air to liquid intercoolers are AT LEAST double the size of the X5/X6 M intercoolers. Not to mention, the much larger diameter intercooler inlet piping and much smoother flow path into the intercooler...
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      05-16-2011, 11:15 AM   #35
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holy smokes! beast
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      05-16-2011, 11:19 AM   #36
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interesting
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      05-16-2011, 11:21 AM   #37
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Wow... every single inch of the engine bay is being occupied...if any M car ever deserved a power bulge/domed hood it should be the 2012 M5!
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      05-16-2011, 11:34 AM   #38
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      05-16-2011, 11:40 AM   #39
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Quote:
Originally Posted by roho3323 View Post
Wow... every single inch of the engine bay is being occupied...if any M car ever deserved a power bulge/domed hood it should be the 2012 M5!
+1 That took a big ass shoe horn.
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      05-16-2011, 11:52 AM   #40
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For comparison, here is a pic of the engine bay of the new 2012 E63, which gets a 5.5L V8 turbo. So, 1.1L more than BMW, although even with the Performance Package, power output will be no more than the M5, while peak torque at 590ft-lb will probably be slightly more than the M5. In base form, however, it is only 518hp and 516ft-lb.



Now we look forward to the next RS6, which will get a 4.0L V8 turbo rumored to be 550hp+. Throw in the XF-R with 5L supercharged V8 and this has the makings for one hell of a four-way comparison test. Actually, we could throw in the CTS-V too and make it five.
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      05-16-2011, 11:55 AM   #41
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SUPASICK!!! seems almost kinda life form...
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      05-16-2011, 12:29 PM   #42
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Talking

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      05-16-2011, 12:45 PM   #43
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Quote:
Originally Posted by Maxx2 View Post
For starters it looks like the air to liquid intercoolers are AT LEAST double the size of the X5/X6 M intercoolers. Not to mention, the much larger diameter intercooler inlet piping and much smoother flow path into the intercooler...
Totally right... same type of configuration, just a lot beefier...
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      05-16-2011, 01:47 PM   #44
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Quote:
Originally Posted by Philritter21 View Post
The two wide set pipes are attached to airboxes at their ends. They feed the turbos. The narrow set piping takes the compressed air and sends it to the intercoolers.. and then on to the engine. There is no junction, it just looks like it because of the angle. Remember that the turbos are mounted on the topside of the engine.
Ok I get it now. I knew the turbos are on top but I was getting confused with the direction of airflow. Airflow comes in through the sides and out the middle. That "junction" I think is just the diverter valve. I keep forgetting that the whole thing is a reverse flow engine and the intake runners are where the exhaust headers would normally be.
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