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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 Turbo upgrade intro price and list for batch 1 pre-orders



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      06-22-2013, 08:53 AM   #89
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      06-26-2013, 07:44 AM   #90
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All of this is exciting except we need a tuner to step in and lead the way. I want to get the turbo upgrade but wont until I see Terry or Cobb support the upgrade.
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      06-26-2013, 07:46 AM   #91
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Quote:
Originally Posted by Sam335ix View Post
All of this is exciting except we need a tuner to step in and lead the way. I want to get the turbo upgrade but wont until I see Terry or Cobb support the upgrade.
Im sure they will once the upgrade actually exists
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      06-26-2013, 07:57 AM   #92
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Quote:
Originally Posted by Sam335ix View Post
All of this is exciting except we need a tuner to step in and lead the way. I want to get the turbo upgrade but wont until I see Terry or Cobb support the upgrade.
Terry and Cobb do both support the upgrade. Terry is actually one of the pre-orders so he can start tuning it immediately and Cobb is 100% on board they are just finishing up their N55 software.
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      06-26-2013, 12:06 PM   #93
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Quote:
Originally Posted by redz06

OK, I am a mechanical engineer who has made his living for over 13 years working on turbomachinery and have been a Professional Engineer for 35 years, and I have to ask WTF you need to have your compressor and turbine wheels designed for reverse rotation? This is not because I am stupid, but others who have no knowledge of the subject may not recognize BS when they smell it. So I'm calling BS now and waiting to make fun of anyone who spends good money on this crap.

Upsets with compressors can cause the shaft to spin backwards, so if anything. one wants to have a bearing/shaft design that can tolerate reverse rotation, but compressor and turbine wheel design has nothing to do with it.

Maybe folks should wonder why the proven and very well experienced manufacturers are not doing this. Are they really stupid?
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      06-26-2013, 01:52 PM   #94
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Don't forget you would likely have to upgrade the transmission in order to handle the kind of power....Not bad pricing for what you get.
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      06-26-2013, 04:49 PM   #95
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Quote:
Originally Posted by Th3xf4ctor View Post
Don't forget you would likely have to upgrade the transmission in order to handle the kind of power....Not bad pricing for what you get.
I'm not sure about autos, but we manual drivers would likely just need a stronger clutch which is fine by me, I was going to replace the flywheel post-warranty anyway since the stock one is way too heavy.
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      06-27-2013, 03:55 PM   #96
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Quote:
Originally Posted by hetzle View Post
I'm not sure about autos, but we manual drivers would likely just need a stronger clutch which is fine by me, I was going to replace the flywheel post-warranty anyway since the stock one is way too heavy.
I would assume that you would have upgrade something in the auto tranny...I just don't think they could handle the load....Maybe temporarily but def no permanently.
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      06-28-2013, 12:17 PM   #97
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Quote:
Originally Posted by Th3xf4ctor
Don't forget you would likely have to upgrade the transmission in order to handle the kind of power....Not bad pricing for what you get.
how about DCT trans? do you think it can handle the power?
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      06-28-2013, 12:59 PM   #98
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Auto trans is good to 450wtq reliably, 500wtq is pushing it and will likely shorten its life. This turbo would help with an auto tranny, just detune the mid range a bit and let it carry the torque all the way to redline with HP climbing the whole way.
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      06-28-2013, 03:57 PM   #99
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Quote:
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how about DCT trans? do you think it can handle the power?
The BMS guys are having slippage issues with their DCT 135i already at <400whp.
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      06-28-2013, 04:02 PM   #100
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Ummm yeeeaaaaa....ill wait for Dinan.
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      06-29-2013, 06:03 PM   #101
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Quote:
Originally Posted by Dark_Knight_335 View Post
Ummm yeeeaaaaa....ill wait for Dinan.
Sounds like a plan. Expect to pay more for a stage 1 upgrade. But hey different strokes, different folks.
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      06-29-2013, 06:08 PM   #102
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Quote:
Originally Posted by redz06 View Post
OK, I am a mechanical engineer who has made his living for over 13 years working on turbomachinery and have been a Professional Engineer for 35 years, and I have to ask WTF you need to have your compressor and turbine wheels designed for reverse rotation? This is not because I am stupid, but others who have no knowledge of the subject may not recognize BS when they smell it. So I'm calling BS now and waiting to make fun of anyone who spends good money on this crap.

Upsets with compressors can cause the shaft to spin backwards, so if anything. one wants to have a bearing/shaft design that can tolerate reverse rotation, but compressor and turbine wheel design has nothing to do with it.

Maybe folks should wonder why the proven and very well experienced manufacturers are not doing this. Are they really stupid?
This post still cracks me up. Professional engineer for 35 years and he comes into a thread and basically makes himself look like a total douche... If you have no knowledge of something, may I suggest a quick google search next time before going into attack mode...
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      06-29-2013, 11:49 PM   #103
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^^^^ +1... lol, I come back to read it to get a good laugh
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      06-30-2013, 01:38 PM   #104
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Quote:
Originally Posted by Dark_Knight_335 View Post
Ummm yeeeaaaaa....ill wait for Dinan.
Fake warranty FTW! /sarcasm.
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      07-01-2013, 12:38 AM   #105
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Quote:
Originally Posted by Dark_Knight_335
Ummm yeeeaaaaa....ill wait for Dinan.
Dinan isn't replacing the turbo... their upgrade is just a larger compressor... Can't compare them to Vargas... Steve from Dinan is marketing at 400whp where Vargas is shooting for a 500whp base gains... I am sure an aggressive upgrade would follow... Hence why Dinan is not in the same league... Yet
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      07-01-2013, 08:12 PM   #106
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I've watched all those Dinan videos wherein Steve takes the viewer through the N55 upgrades and I am 99% sure that the "400" figure that he tossed out is going to be a crank number, not wheel. Think about it, even being extremely charitable with your driveline loss estimations, 400 whp is north of 450 crank. No way they are going to see that out of the factory turbo on just an upgraded compressor wheel. Keep in mind that the stock turbine will not be touched.

This upgrade from Dinan will be for a customer wanting something more than their stage 3 software. Dinan will dyno it around 350whp, claim 400 crank and the rest of the world will never be able to get it to put down over 330whp, just like all of the N54/5 stuff they make.
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      07-01-2013, 11:10 PM   #107
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Enough talk, I want to see a f ing n55 already with a new turbo lol.... Show me some numbers and then take my money... I have been debating between the 2014 m3, 2013 m5 or just f it all and get the Vargas turbo upgrade. I think I am going with number 3 :-)
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      07-13-2013, 01:03 AM   #108
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Will this fit 2011 through the current model with the new body 2013?
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      07-15-2013, 09:07 AM   #109
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Where are we with this yet?

I put my car completely back to stock, and I must say that it drives nice again with the stock dp back on. its like the car reacts better when it knows exactly what the O2 readings are. So my question is... why can't I leave the stock DP in and upgrade with the bigger turbo. What makes this DP so much different than any high horsepower turbo car that still meets emission standards? I know it puts pressure on the turbo, but hey, if your only going to punch it every now and then, so what?

Look at the new M3 with more than one turbo... it needs to meet emission standards so you don't see them going catless as soon as a high output turbo comes into the mix.
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      07-15-2013, 09:37 AM   #110
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Quote:
Originally Posted by Slops View Post
Where are we with this yet?

I put my car completely back to stock, and I must say that it drives nice again with the stock dp back on. its like the car reacts better when it knows exactly what the O2 readings are. So my question is... why can't I leave the stock DP in and upgrade with the bigger turbo. What makes this DP so much different than any high horsepower turbo car that still meets emission standards? I know it puts pressure on the turbo, but hey, if your only going to punch it every now and then, so what?

Look at the new M3 with more than one turbo... it needs to meet emission standards so you don't see them going catless as soon as a high output turbo comes into the mix.
You can leave the stock DP in but performance will suffer, turbos like zero back pressure the more flow you can get the better. A cat is not going to effect your pre cat O2 readings at all which is where the car gets most of its info for adjusting tune. With any turbo upgrade I suggest 100% changing the DP to allow more flow but if you really want a cat for emission purposes get an after market catted DP. The stock DP is most likely pretty restrictive. Also an update, we are nearing completion of the test unit. We had to stop and completely alter the machining process which meant our machine shop calling in a 3D CNC programmer and redesigning the program to get it exactly how we wanted it, and it also meant building all new tooling. But the tooling only needs to be built once. It's done now and machining is back on track. Looks like 2 weeks til we have our unit ready to go on a test car.
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