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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



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      07-17-2012, 08:17 AM   #45
shockin330i
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I'm out of warranty already, just need to save up some cash.
How are you out of warranty for your n55? Did it get voided or you're past 50k miles?
Over 50k miles
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      07-21-2012, 11:35 AM   #46
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Would swapping to a bigger turbo mean a different ecu or can we just use our piggyback's?
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      07-21-2012, 02:07 PM   #47
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Would swapping to a bigger turbo mean a different ecu or can we just use our piggyback's?
You can use the procede or jb
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      07-22-2012, 08:21 AM   #48
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You can use the procede or jb
Thanks. I do know for a fact that the jb3 stage1 does not support the bigger turbo so we'll have to wait for Terry to do his magic and we N55 boys have to wait for bigger better turbo.
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      07-26-2012, 02:02 PM   #49
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Theoretically speaking, if the N54 Vishnu Single Turbo is controlled by the Proceed and doesn't require anything else, couldn't the same control system be used for the N55? Or is there something I'm not getting (apologies for being ignorant and a JB4 user)

So by that logic, the tune-ability should exist for the N55 and all we are really waiting on is hardware. In that case, since the N55 manifold only has a few different mounting points than the N54, shouldn't it be fairly easy to convert the N54 single turbo kit over?

Just thoughts out loud.
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      07-26-2012, 02:11 PM   #50
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Quote:
Originally Posted by turugara
Theoretically speaking, if the N54 Vishnu Single Turbo is controlled by the Proceed and doesn't require anything else, couldn't the same control system be used for the N55? Or is there something I'm not getting (apologies for being ignorant and a JB4 user)

So by that logic, the tune-ability should exist for the N55 and all we are really waiting on is hardware. In that case, since the N55 manifold only has a few different mounting points than the N54, shouldn't it be fairly easy to convert the N54 single turbo kit over?

Just thoughts out loud.
Hell, why not keep the existing manifold and adapt it with a bigger turbo ... Cut that damn thing off
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      07-26-2012, 02:29 PM   #51
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Theoretically speaking, if the N54 Vishnu Single Turbo is controlled by the Proceed and doesn't require anything else, couldn't the same control system be used for the N55?
The Vishnu Single gets a DME flash & is stacked with the PROceed..... And I'm like 99% sure that it'd be a lot more work then just bolting that kit onto an N55
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      07-26-2012, 02:33 PM   #52
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On a side note, that Exhuast manifold looks pretty weak... whose going to make us a nicer one???
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      07-26-2012, 02:58 PM   #53
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On a side note, that Exhuast manifold looks pretty weak... whose going to make us a nicer one???
^^ this.... back in my Mustang 5.0 days, this was a significant performance boost........
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      07-26-2012, 08:08 PM   #54
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For sure that is one major area where airflow matters... And that mani almost looks like an afterthought ...
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      08-03-2012, 10:24 AM   #55
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I wonder if this N55 manifold/turbo would bolt up to my 328 head? Wondering minds.

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