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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 > ASR Engineering 335/135 Twin Ballbearing Turbo Upgrades Completed



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      12-08-2008, 01:45 PM   #1
asr engineering
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ASR Engineering 335/135 Twin Ballbearing Turbo Upgrades Completed

I'm sure many of you know we have been working on the factory twin turbo upgrade kit for both the 335 and 135. It has been quite sometime under development, but we have just completed the tooling and machine work. Currently we are the only company that has successfully completed a bolt on turbo upgrade for these vehicles. The turbo's are designed to work as a factory bolt on replacement, without the dealer even knowing the turbos have been upgraded. No factory lines were cut or modified. The kit comes with CNC factory retrofit fittings for the lines. All stock intake plumbing and intercooler piping bolts back in place like factory.

We have fitted them on our 135 shop car, and will be doing testing this week. We will be dyno testing with everything in stock format with just the turbo upgrades at stock boost. Then shortly thereafter with all the bolt on's including custom fuel system that will be need for more than stock boost. These turbos are Dual Ballbeaing and flow double the airflow volume than the stock turbos and are capable of producing a peak of 550whp. The big plus is sustained boost rather than the spikes and drop off with stock turbos at stock boost levels and above. Intake, oil, and egt, temps will be much cooler than stock from the increased efficiency.

We will have pricing and availibilty once testing is complete, meanwhile enjoy the pics!
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      12-08-2008, 01:47 PM   #2
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That's some good news.
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      12-08-2008, 01:53 PM   #3
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wow thats great let me know as soon as its ready to be purchased I am local lol
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      12-08-2008, 02:00 PM   #4
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GREAT NEWS. Keep us updated
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      12-08-2008, 02:04 PM   #5
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I'M IN!!! this is great news, hope your final testing goes well and quickly!

subscribed for updates!
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      12-08-2008, 02:10 PM   #6
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woohoo!!!!!!! nice job guys
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      12-08-2008, 02:11 PM   #7
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No way, I dont believe my eyes.

So what kind of turbos are they?
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      12-08-2008, 02:14 PM   #8
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This is great news!!!
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      12-08-2008, 02:17 PM   #9
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Quote:
Originally Posted by asr engineering View Post
I'm sure many of you know we have been working on the factory twin turbo upgrade kit for both the 335 and 135. It has been quite sometime under development, but we have just completed the tooling and machine work.
awesome. Will these work with Dinan
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      12-08-2008, 02:17 PM   #10
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Quote:
Originally Posted by silverbullet135i View Post
No way, I dont believe my eyes.

So what kind of turbos are they?
+1 and what type of tuning will you be using? I'm very interested/excited to see what happens next.
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      12-08-2008, 02:17 PM   #11
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Woohoo~ Finally a replacement for those tiny snails in the bottom of our engines.
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      12-08-2008, 02:26 PM   #12
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Quote:
Originally Posted by silverbullet135i View Post
No way, I dont believe my eyes.

So what kind of turbos are they?
Custom Garret GT Twin Ballbearing Turbos.
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      12-08-2008, 02:28 PM   #13
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Quote:
Originally Posted by asr engineering View Post
Custom Garret GT Twin Ballbearing Turbos.
Whats the max psi they can efficiently sustain? Edit: also, any idea how fast they will make said max boost?
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      12-08-2008, 02:29 PM   #14
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Quote:
Originally Posted by coolguy View Post
awesome. Will these work with Dinan
Not quite sure which Dinan part you're referring to, I'm assuming you mean ECU? If it's the ECU, it will not work with these turbo upgrades.
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      12-08-2008, 02:32 PM   #15
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Cant wait for these to come out!
wohOoo! finally man! been waiting and saving up for something like this for a while now! lol

Good job guys!
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      12-08-2008, 02:42 PM   #16
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What will stock psi be? If we want to run anything higher than stock we have to install a fuel line or just higher octane will work?
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      12-08-2008, 02:42 PM   #17
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Very nice ASR!! You guys make some quality products!
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      12-08-2008, 02:43 PM   #18
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this is so sick
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      12-08-2008, 02:44 PM   #19
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Wow!! good luck with the project!! I'll be waiting anxiously for the results ::subscribed::
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      12-08-2008, 02:44 PM   #20
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Wow I cant wait to see the turn out on this set up... only the best comes from ASR
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      12-08-2008, 02:45 PM   #21
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Can we see the flowmaps of stock verses modified?
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      12-08-2008, 02:45 PM   #22
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M5/M6 killers?
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