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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 > Stage 3 update



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      12-08-2012, 07:48 PM   #1
Vargasturbotech
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Stage 3 update

Ok guys, so both Stage 3 manifolds are fully welded and mounted in the car. I am currently doing a rough plumb of all the oil and water lines, then I will move on to DP's then charge piping. I should have the lines at least rough plumbed tomorrow with some SS, some hard lines and some rubber. When all is said and done everything will be SS or hard line. We were able to keep the stock drain on the rear turbo with just a spacer which is great. The more we can retain the better. Everything seems to be fitting great, there is still a lot of work to be done but we jumped through some of the bigger hoops. Keep in mind this is a prototype kit, and these are early pics including the manifolds. (I am only posting 2 for now) The final kit will look much different in both fit and finish. I hope everyone has a good weekend, things are coming together quickly.
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      12-08-2012, 08:04 PM   #2
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Keep up the good work tony can't wait to give these a run, if supported for the 535i! Regardless liking the progress
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      12-08-2012, 08:14 PM   #3
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Looks cool. Thanks for the update. Will look forward to seeing some results from your stuff. More vendors offering kits is nothing but good for this market.
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      12-08-2012, 08:19 PM   #4
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looking great!
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      12-08-2012, 08:28 PM   #5
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Definitely interested in this....
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      12-08-2012, 08:30 PM   #6
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Looks great
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      12-08-2012, 09:21 PM   #7
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I am no expert, this is all new to me, but my question is about the manifolds. Seems like the exhaust from the manifold cylindars would crash at the T just before hitting the turbos. So what I am seeing here is instead of a smooth flow I am seeing alot of turbulence adding more back pressure ?

It this intentional ?
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      12-08-2012, 09:47 PM   #8
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Quote:
Originally Posted by BuraQ View Post
I am no expert, this is all new to me, but my question is about the manifolds. Seems like the exhaust from the manifold cylindars would crash at the T just before hitting the turbos. So what I am seeing here is instead of a smooth flow I am seeing alot of turbulence adding more back pressure ?

It this intentional ?
Well since you are posting the same things on both sites I will answer it over here as well. If you see inside the collector they all merge smoothly. Back pressure on any turbo application is your enemy.
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      12-08-2012, 10:01 PM   #9
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This might sound like a really really really dumb question, but fock it I'm asking it anyways:

What exactly differentiates a Stage 2 upgrade from Stage 3?

Pics look awesome btw keep up the good work.
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      12-08-2012, 10:08 PM   #10
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Quote:
Originally Posted by shaginwagon13 View Post
This might sound like a really really really dumb question, but fock it I'm asking it anyways:

What exactly differentiates a Stage 2 upgrade from Stage 3?

Pics look awesome btw keep up the good work.
Stage 3 is new manifolds, downpipes, and real bigger turbos. It's the real upgrade ;P

Keep it up Tony
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      12-08-2012, 10:48 PM   #11
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Quote:
Originally Posted by CaptainInsano View Post
Stage 3 is new manifolds, downpipes, and real bigger turbos. It's the real upgrade ;P

Keep it up Tony
Ahhh now I see haha

Thanks
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      12-09-2012, 02:00 AM   #12
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very impressive...i like what i see. Let me know if u need a tester
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      12-09-2012, 02:11 AM   #13
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Man, things are looking great! Great work, Tony! Let me know if you need an extra test car.
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      12-09-2012, 02:13 AM   #14
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Great work
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      12-09-2012, 03:58 AM   #15
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This mod is not going to be a bargain. Keep up the good work.
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      12-09-2012, 09:38 AM   #16
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This is an interesting alternative. Which tune will this work with when released? I'd love to be able to use my Cobb AP and get the car pro tuned
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      12-09-2012, 09:49 AM   #17
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Quote:
Originally Posted by BuraQ View Post
I am no expert, this is all new to me, but my question is about the manifolds. Seems like the exhaust from the manifold cylindars would crash at the T just before hitting the turbos. So what I am seeing here is instead of a smooth flow I am seeing alot of turbulence adding more back pressure ?

It this intentional ?
That's not a T, that's a collector. And those runners are quite large.

What size are those runners?

Thanks for the updates!
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      12-09-2012, 11:25 AM   #18
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Quote:
Originally Posted by jazze90 View Post
This is an interesting alternative. Which tune will this work with when released? I'd love to be able to use my Cobb AP and get the car pro tuned
This setup will work with any tune. O2 sensors are in the stock location and the waste gates will work with the stock boost control logic.
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      12-09-2012, 11:51 AM   #19
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Looks pretty sweet. Couple questions:

1) What size are those primaries? I'd think 1.5" or 1.625" at biggest would be ideal. Those look to be perhaps 1.75".
2) The rear turbo compressor outlet, is that where it is going to be orientated when said and done? Thinking not as not only does it point directly to the subframe (when installed) the WG actuator would not have a very sound mounting point.
3) What kind of clearance is left behind the rear turbo down pipe outlet? Enough to keep the original water plumbing intact to the block, or will that be custom?
4) How does the clearances look behind the front turbo? Enough room to get the actuator in place?
5) Have you tried installing the motor mount and is everything clearing? Or will it need replacing or clearancing?
6) Will the original engine block heat shields still work with this or will the need to be discarded or new ones fabricated?
7) What's the plan on the rear induction tube, as in how do you plan on routing it?

Keep up the good work.

Rob
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      12-09-2012, 12:46 PM   #20
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Looks great! twin GTX28s ? Should provide crazy powerbands Also put LOADS of cars in 10s with crappy drivermods
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      12-09-2012, 01:23 PM   #21
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Quote:
Originally Posted by Ænema View Post
This setup will work with any tune. O2 sensors are in the stock location and the waste gates will work with the stock boost control logic.
That's great. Any expected output numbers?
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      12-09-2012, 02:47 PM   #22
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Quote:
Originally Posted by RobBeck View Post
Looks pretty sweet. Couple questions:

1) What size are those primaries? I'd think 1.5" or 1.625" at biggest would be ideal. Those look to be perhaps 1.75".
2) The rear turbo compressor outlet, is that where it is going to be orientated when said and done? Thinking not as not only does it point directly to the subframe (when installed) the WG actuator would not have a very sound mounting point.
3) What kind of clearance is left behind the rear turbo down pipe outlet? Enough to keep the original water plumbing intact to the block, or will that be custom?
4) How does the clearances look behind the front turbo? Enough room to get the actuator in place?
5) Have you tried installing the motor mount and is everything clearing? Or will it need replacing or clearancing?
6) Will the original engine block heat shields still work with this or will the need to be discarded or new ones fabricated?
7) What's the plan on the rear induction tube, as in how do you plan on routing it?

Keep up the good work.

Rob
1. 1.5"
2. Orientation is not in final position
3. Plenty, just doesn't look like it in the pic
4. Yes
5. Manifolds were built with motor mount in place. Subframe has been installed. All clears with no modifications
6. Heat shields should work
7. induction and charge piping will be designed after the downpipes are finished
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