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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Front Facing T4 TS Project



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      01-12-2013, 10:29 PM   #1
cageyvet
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Front Facing T4 TS Project

First, this is probably going to take me a while to complete in between work, school, and day to day life. However, today I got started on my new project. The plan is to remove the stock radiator and to install a mini radiator to create room for a front facing turbo. In order to run a manifold up front I plan on fabbing a new coolant reservoir in another location as well as relocating/deleting stuff in the way. Right now the turbo I'm leaning towards is a T4 TS Borg Warner Airwerks s300sx FMW. My goals are to have a quick spooling setup, that will make decent power, and that will not be a pain in the ass to work on after its on the car. I haven't spent a ton of time under the hood of my 335i since its just a DD at the moment but I'm assuming I can just route a DP under the engine instead of snaking it through the engine bay. Since I finally got a tig welder (Eastwood tig 200) and I had some SS come in from Acestainless this week so I got cracking today.

Here's what I did today
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      01-12-2013, 10:52 PM   #2
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Damn you can weld
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      01-12-2013, 11:01 PM   #3
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good luck keep us informed!
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      01-12-2013, 11:04 PM   #4
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Damn you can weld
Thank you!! Ebay tig ftw, lol!
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      01-13-2013, 12:41 AM   #5
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Good luck with the build! I'll be watching this one
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      01-13-2013, 01:12 AM   #6
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Looks great man! Keep us updated.

The half-rad idea is heavily used on the Evo platform and works well for them. Can't wait to see your results!
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      01-13-2013, 08:35 AM   #7
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Can't wait to see the results! Coming from the evo world this looks promising!
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      01-13-2013, 06:14 PM   #8
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Subd this should be interesting
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      01-13-2013, 08:46 PM   #9
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      01-13-2013, 09:33 PM   #10
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Good luck with the project and keep us posted
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      01-13-2013, 09:40 PM   #11
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My main concern would be sub par coolant capability. This car is notoriously HOT not to mention the transmission putting a strain on the temp as well.
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      01-13-2013, 10:19 PM   #12
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Surprised only one person caught the 4 banger style divided collector but im planning on splitting 2 runners into 4 closer to the cylinder head for space conservation. Im going to need all the space i can get for twin gates, not to mention i wanted tomake it easier to fab. If i was doing an undivided setup id do a 6-1 collector but since im dealing with the ts cyl pairing restrictions i thought this would be more feasible.
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      01-13-2013, 10:22 PM   #13
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Quote:
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My main concern would be sub par coolant capability. This car is notoriously HOT not to mention the transmission putting a strain on the temp as well.
Check mini rad cooling capability....compare to stock
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      01-14-2013, 01:54 AM   #14
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Quote:
Originally Posted by cageyvet View Post
Surprised only one person caught the 4 banger style divided collector but im planning on splitting 2 runners into 4 closer to the cylinder head for space conservation. Im going to need all the space i can get for twin gates, not to mention i wanted tomake it easier to fab. If i was doing an undivided setup id do a 6-1 collector but since im dealing with the ts cyl pairing restrictions i thought this would be more feasible.
You should divide the cylinders into two evenly, 3 cylinders per turbine inlet and moreover, based on the firing order.

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      01-14-2013, 09:28 AM   #15
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awesome someone finally doing it themselves.
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      01-14-2013, 12:38 PM   #16
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The runners are going to have a similiar split like the DOC race manifold pictured but instead of one splitting to three I'm going to have one splitting to two + a lone runner going to each collector. This might be bold or overly ambitious but I want my design to turn out better than this one. Besides placement I want to incorporate better EWG routing coming off the collector's than the manifold pictured (ie. I want them coming off at an angle that is conducive with the exhaust gas flow) and I want to eliminate using cheater cuts on my design.
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      01-14-2013, 12:40 PM   #17
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see below pictar
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      01-14-2013, 12:46 PM   #18
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Now I got it, I think Looking forward to your build!
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      01-14-2013, 01:30 PM   #19
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Nice!! Can't wait to see more of this project in action
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      01-14-2013, 03:09 PM   #20
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Good luck.

I'm sure you remembered in your project that it's important that the o2 sensors read the appropriate banks. (i.e. Cyl 1-3 and 4-6, Bank 1 and Bank 2 Respectively). If you mate the o2 sensors all in 1 bank it will likely cause drivability problems. So be sure to mate the o2 sensors in a good location that read 1-3 separate from 4-6 cylinders.
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      01-14-2013, 05:24 PM   #21
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Very cool
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      01-14-2013, 08:03 PM   #22
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awesome someone finally doing it themselves.
There's already atleast one DIY single turbo out and running around. It's runnning a JB4 IIRC.
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