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View Full Version : Chargepipe re-design questions.



GT110
05-03-2012, 06:09 AM
So I'm half way through re-designin the chargepipe setup on my TwinTurbo M3.

What I am doing is getting rid of the poorly designed pipes that came with the kit, which are in essence 2.5" but with a 2x2" from the turbos to a single 2.5". The new setup will be 3" (like the intercooler) on the intake plenium side, and a 2x2" from the turbos to a Y collector with a single 3" to the intercooler.

Anyway, I have very limited space on the Turbo side due to the big 2x KN airfilters, the steering rack, motor mounts and Thick H&R swaybar.

Alloy piping would be optimal, but it would be a very complicated design and weld if I am supposed to clear all the stuff, so I was wondering ......

Can I get the same effect by using a Wire reinforced Silicone Flex tube?

Something like this:
http://i18.ebayimg.com/03/i/001/1a/42/68e4_12.JPG

I know it will not look as good, but in the end my chargepipes are painted in black gloss.

This would provide the freedom I need..

jekaio
05-03-2012, 02:04 PM
edit: how much boost are you planning on running?

above 15psi I dont think they would be good.

think about how much on/off you will be on the throttle during one lap on the ring, and all the heat. Those things are going to get worked, HARD.

the heat and being constantly in and out of boost expanding/contracting would probably wear those things out pretty quickly if your running moderate boost.

HTOWN///M
05-03-2012, 03:02 PM
^ THIS. If your doing twin turbo and going through all this work...Y half ass on charge pipe? take the time and money and do it right with hard pipe. You will just be spending money and down time to replace these hoses once they go out.

GT110
05-04-2012, 04:17 AM
I already have aluminum charge pipes fitted, but the design is not optimal, probably due to the reason that I am using a bigger intercooler with side entry/exit and also the H&R Swaybars are so much thicker.

Im running 18psi max.

The point of the post was not to state that this was optimal, but rather to ask if it was possible.

cragg56
05-04-2012, 07:47 AM
Consider running a dual inlet intercooler and single out or would that just make space constraints worse trying to run duals all the way to the intercooler?

GT110
05-04-2012, 08:15 AM
Consider running a dual inlet intercooler and single out or would that just make space constraints worse trying to run duals all the way to the intercooler?

The front turbo access is pretty good, but currently there is a single big pipe going to both turbos, over and under the anti-roll bar.

I just bought a silicone Y joiner (1x3" to 2x2")
I will then have to see if I use it straight on the Intercooler, or with a 90° bend.