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      01-13-2017, 02:03 AM   #1
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Speedtech.com Stg3 Turbo (600whp)

This might be old news...

http://www.speedtech.com/bmw-n55

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      01-13-2017, 02:12 AM   #2
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hmm wondering if people would prefer this or PS2?
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      01-13-2017, 02:16 AM   #3
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Automatic or manual ?
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      01-13-2017, 12:57 PM   #4
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Quote:
Originally Posted by ozuna View Post
hmm wondering if people would prefer this or PS2?
I certainly would because the design of the PS2 while it boasts the most power now for any BMW car especially N55, but it's a compromised unit and in all seriousness you need to consider the failure rate.

While some have had zero issues I've seen quite a few fail especially at the turbofold interior welds. It's just CNC'd to max and the walls become too thin.

And you can never ever run a converter again even a Hiflo cat produces too much heat and melts the back end of the turbo, not that anyone get PS2 to run cats but I don't like the smell.

PURE makes awesome stuff for sure but there's a reason I personally stuck with their stage 1 unit and no issues .

But this new stage 3 let's hope that it's legit and that we can see some great results.
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      01-13-2017, 01:33 PM   #5
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No baseline or datalog?
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      01-13-2017, 03:35 PM   #6
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      01-14-2017, 09:49 AM   #7
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This is exciting
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      01-15-2017, 08:33 AM   #8
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hmmm.. this looks like something I'd want to pick up in the near future.
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      01-15-2017, 02:01 PM   #9
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Pretty damn impressive with stock intercooler, intake, and exhaust. Those EFR series Borg Warner turbos are no joke either. I can't imagine an 8374 on a 335!
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      01-15-2017, 02:15 PM   #10
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Quote:
Originally Posted by Empower04 View Post
Pretty damn impressive with stock intercooler, intake, and exhaust. Those EFR series Borg Warner turbos are no joke either. I can't imagine an 8374 on a 335!
I can, It would sound like rod knock haha
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      01-15-2017, 03:05 PM   #11
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This seems to be the new trend. Very exciting!
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      01-15-2017, 03:15 PM   #12
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All in the build and tune Joe! But I think the tranny would let go from the torque first haha
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      01-15-2017, 04:03 PM   #13
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PureTurbo quote taken from another site.....


Quote:
Originally Posted by jturboawd:
Pure, are you aware of any e series with a completed and dialed in large turbo with non oem manifold? I only know of anytime who has not finished tuning.

Also can you comment on the m2 manifold differences? Of they changed the runner design it would be suspicious. I know some have pointed to backpressure before, I thought times pure did in other forums. Is there evidence , no. Nobody has finished a e series stage 3, nobody has ran the sensors to verify. Also nobody has hit big numbers in a n55. The f series makes a little better numbers in a stage 2 much leaner though.


Quote:
Originally Posted by Pure Turbos:
We have recently learned some things about the N55 motor. The biggest one that hasn't seemed to make it to the forums yet, is that they appear to be much weaker internally than an N54. I know of 4x N55 motors now, all single turbo cars making 600-650whp, that bent or broke rods. There's only a handful of N55 ST cars around, so that may be a majority of them with broken motors, lol. I'm sure a motor would last for a while with a conservative tune, great fuel, and no mistakes. But unless you want to explore new territory with a built motor, single turbo, etc., the N55 is best with 450-550whp and a simple setup, like PURE Stg2.

The stock N55 engine seems to eventually break at the 600+whp level.

"Anytyme's" car is making good power. That last tune I saw ran very safe ign timing targets, and power seemed to be appropriate for the tune. But again, if it was my car: I would leave it on that safe tune considering motor strength, cross my fingers, and hope for the best.

For the M2 turbo, performance wise, it's virtually the same turbo. There's just a few details on the turbo that prevent us from exchanging them with normal N55 turbos. It has a different M2 specific turbo part number.


So for what it's worth...if you're going to go "Big Turbo" route do what Alex@ACF has done, go forged guts (JMO)


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      01-16-2017, 08:33 AM   #14
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That's very interesting. I'm at a crossroads with my EWG N55 as to whether I play it safe and keep it as is (JB4, DP, E30) or go down the PS2 / fuel upgrade / IC route. Planning on keeping my car for probably another 3 years before changing (just turned 3yrs old), so the weighing up of reliability risks vs the itch for more power is proving difficult!

Seems like people haven't had any reliability problems with PS2 levels of power based on that? The 8AT also seems to be holding up, which is another big area of concern for me as I imagine that would be costly should anything go bang.
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      01-16-2017, 08:29 PM   #15
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Quote:
Originally Posted by Arrow29 View Post
That's very interesting. I'm at a crossroads with my EWG N55 as to whether I play it safe and keep it as is (JB4, DP, E30) or go down the PS2 / fuel upgrade / IC route. Planning on keeping my car for probably another 3 years before changing (just turned 3yrs old), so the weighing up of reliability risks vs the itch for more power is proving difficult!

Seems like people haven't had any reliability problems with PS2 levels of power based on that? The 8AT also seems to be holding up, which is another big area of concern for me as I imagine that would be costly should anything go bang.
There would be another ~100hp in it for you if you decide to go pure stg2. Peter from Belgium ran his car as a test mule with stg2 for 50000km and sold it recently with flawless compresion on all cylinders. You should be safe on stg2 - and OH BOY does it pull nicely up top
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      01-17-2017, 03:25 PM   #16
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Bmw doubles whats that company you mentioned in F10 in regards to Turbo?
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      01-17-2017, 06:10 PM   #17
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I would be too scared to try a turbo for a new company on the market ... If anything goes wrong, it will cost thousands of dollars in labor to fix it
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      01-17-2017, 06:48 PM   #18
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Quote:
Originally Posted by mike@x-ph.com View Post
I would be too scared to try a turbo for a new company on the market ... If anything goes wrong, it will cost thousands of dollars in labor to fix it

Yeah, but they're the only ones that have a decent upgraded turbofold tho (that I know of)

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      01-18-2017, 08:18 AM   #19
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Guys, please go and read the whole thread. Specifically the rod and turbofold data shown.
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      01-18-2017, 09:37 PM   #20
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Quote:
Originally Posted by mike@x-ph.com View Post
I would be too scared to try a turbo for a new company on the market ... If anything goes wrong, it will cost thousands of dollars in labor to fix it
Its not a "ebay turbo" but a BorgWarner. Maxing out the Pure Stg2 has shown to be reliable - this might be too much for the car though; so tune smart

Think its great that we now have an alternative to Pure with an even higher sealing!
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      01-19-2017, 12:35 AM   #21
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Quote:
Originally Posted by harkes View Post
Its not a "ebay turbo" but a BorgWarner. Maxing out the Pure Stg2 has shown to be reliable - this might be too much for the car though; so tune smart

Think its great that we now have an alternative to Pure with an even higher sealing!
Please dont take it the wrong way, this could be a quality product and more competition is always good.

Im saying if it was my car because of labor time to fix anything i would rather pay the extra cost and get a proven solution. That being said, waiting for some of you guys to try and let us know how it goes.
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      01-19-2017, 08:51 AM   #22
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Its a thick cast manifold with a borgwarner EFR turbo. (i believe our factory unit is a BW turbo). It pretty much has to make more power for the same psi as a hybrid.

Only risk I see is the auxiliary equipment. Its pretty much plug, play, tune. I bet you could run the same BMS or other tune as with the PS2 and make a few small changes.

Only so much you can ask from the stock turbofold. I am amazed we have done so much with it already. I would expect a min 50hp pick up with the same boost and all things equal. For max horsepower you want a boost to PTBP ratio as close to 1:1 as possible. I would be willing to bet a maxed out PS2 is closer to 1:4.
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