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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 > RB Turbo's N55 Turbo Upgrade, rounding the bases



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      11-14-2013, 01:43 PM   #111
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      11-14-2013, 06:24 PM   #112
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Rob only posted an update yesterday. ..
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      11-15-2013, 01:15 PM   #113
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We have about 10 sets of N55 cores that we'd like to sell outright if anyone is interested. These will make it to where you do not need to pay a core charge if you go with the VTT N55 solution. Their core charge is $1500+, we are looking to sell each of our core units for $750.

Let me know if interested,
Rob
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      11-19-2013, 01:25 AM   #114
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We have about 10 sets of N55 cores that we'd like to sell outright if anyone is interested. These will make it to where you do not need to pay a core charge if you go with the VTT N55 solution. Their core charge is $1500+, we are looking to sell each of our core units for $750.

Let me know if interested,
Rob
Hi Rob,

There are many different part #'s for N55 cores. I may be interested in them depending on which #'s you have. Thanks
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      11-19-2013, 01:34 AM   #115
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My understanding based on the units that I have is that they all look the same, so I do not think the part number should be a concern. Unless you know something I do not, I would not be concerned with that. Several have already sold, and a couple are pending payment. I think there are about 3-4 available assuming all I've been communicating with come through.

Thanks,
Rob

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Hi Rob,

There are many different part #'s for N55 cores. I may be interested in them depending on which #'s you have. Thanks
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      12-22-2013, 10:59 PM   #116
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Seems to have been over since the last update, any updates?
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      12-25-2013, 01:32 PM   #117
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Seems to have been over since the last update, any updates?
We have actually reshifted focus on the N55 in a very good way. We have got some parts delivered now which we are going to be converting to a N55 hybrid solution. This is something we will be working very hard on completing after the new year and plan to be completed by end of February. This will be a full Stage 2 N55 hybrid stock frame Journal Bearing offering that we are confident will be priced no more than the mid $2,xxx range (plus core). This is the price range we feel is appropriate for such an upgrade so now that we have the concept in mind are going to make it happen. It has been shown that modest gains can be had, which we always knew would exist, but not until recently have we found a way that it can be done to make the cost per $$ gain ratio work out correctly- to the point where we believe it would be a product worth selling.

Happy Holidays everyone,
Rob
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      12-25-2013, 05:59 PM   #118
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Great news Rob
happy holidays to you and the team
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      12-25-2013, 06:54 PM   #119
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Hi Rob
Finally! Do you think you can achieve nearly the same gains as Tony did. As always an estimation is enough. Furthermore: will the upgrade be as 'insvisible' as the one from VTT?

Last edited by 335iFFM; 12-25-2013 at 07:00 PM.
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      12-25-2013, 07:42 PM   #120
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Hi Rob
Finally! Do you think you can achieve nearly the same gains as Tony did. As always an estimation is enough. Furthermore: will the upgrade be as 'insvisible' as the one from VTT?
Its my thoughts that it will make very similar power, or enough power to max out housings anyway (which is where we believe they are at but only with a more than/unnecessarily capable compressor). Ultimately we are going to go with a slightly smaller compressor which we believe will help the spool somewhat, spool being important especially as we are retaining a Journal Bearing setup. If proven incorrect we can alter the size upward, but think this is the right approach initially. The turbine is nearly identical. Overall the wheel match set we are using is very good, so it should be a very solid performer. It will be using a billet GTX style custom wheel and upgraded thrust parts.

As for the invisible factor, we believe it will be actually a better stealth candidate as we have planned to use all OEM lines and no special adapters/etc.

Thanks,
Rob
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      12-25-2013, 10:01 PM   #121
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Sounds good. Count me in. I planned to upgrade my Turbo in April '14. Do you think this is achievable? Do you still have a core available for sale or should I wait until you sell it together with the Upgrade (core charge?)
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      12-25-2013, 11:24 PM   #122
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Mid $2000's?! Count me in as the first customer
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      12-25-2013, 11:39 PM   #123
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Quote:
Originally Posted by sA x sKy
Mid $2000's?! Count me in as the first customer
2nd
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      12-26-2013, 07:38 AM   #124
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Mid $2000's?! Count me in as the first customer
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2nd
Na Na. I am the first one . Look at the post above yours
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      12-26-2013, 01:37 PM   #125
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Screw you all. I'm zero the hero!
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      12-26-2013, 02:35 PM   #126
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      12-26-2013, 02:40 PM   #127
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I hope this can work on 2013 F10 N55
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      12-26-2013, 05:21 PM   #128
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i'll fight you for it..
Bring it on dance man 3000.
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      12-26-2013, 05:45 PM   #129
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A full on N55 turbo brawl...Back in N54 land we just argue over nonsense. I'm jeally
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      12-26-2013, 06:39 PM   #130
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We went from having nothing 2 weeks ago to soon we will have actual choices! Excited to see how this one turns out as the price is much more attractive.
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      12-26-2013, 06:44 PM   #131
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Yep. So excited. I hope for an intro sale. Would buy it right away
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      12-26-2013, 06:48 PM   #132
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I as well would love to see one installed and dynoed out!
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