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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 > Upgraded Twins



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      08-27-2015, 03:54 PM   #1
Mixmaster
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Upgraded Twins

Question : Can many gains be found by upgrading twins on an FBO without running meth or ethanol fuel?
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      08-27-2015, 05:56 PM   #2
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Over in Australia the guys were getting 320-330 rwkw with RB's and 98 RON.

Nowadays with the inlets it may be possible to get 350 rwkw on 98 RON.

Do you guys have E85 in NZ? it really is awesome stuff and wakes the N54 up!
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      08-27-2015, 06:39 PM   #3
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One station on the outskirts of the city. I use my car as a daily driver and company delivery wagon so mixing fuels doesn't seem viable.
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      08-27-2015, 08:13 PM   #4
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Quote:
Originally Posted by DR-JEKL View Post
Over in Australia the guys were getting 320-330 rwkw with RB's and 98 RON.

Nowadays with the inlets it may be possible to get 350 rwkw on 98 RON.

Do you guys have E85 in NZ? it really is awesome stuff and wakes the N54 up!

Inlets for RHD are still a work in progress though right?
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      08-27-2015, 08:16 PM   #5
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Quote:
Originally Posted by Mixmaster View Post
Inlets for RHD are still a work in progress though right?
That's only the expensive TFT inlets. There has been a RHD solution developed but this is an expensive solution and will be for baller status only!

The RB turbo & VTT silicon inlets will fit RHD.
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      08-28-2015, 08:26 AM   #6
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You'll see nice smoke gains when the rb's start smoking after 2k miles
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      08-28-2015, 09:11 AM   #7
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Quote:
Originally Posted by DR-JEKL View Post
That's only the expensive TFT inlets. There has been a RHD solution developed but this is an expensive solution and will be for baller status only!

The RB turbo & VTT silicon inlets will fit RHD.
RB inlets are a better fit. There is a group buy that is about to end in an hour or so. No need to risk for debris getting into the turbos since many do not get VTT inlets to fit tight.
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      08-29-2015, 08:04 PM   #8
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Quote:
Originally Posted by jippii ensio View Post
RB inlets are a better fit. There is a group buy that is about to end in an hour or so. No need to risk for debris getting into the turbos since many do not get VTT inlets to fit tight.
This is complete misinformation. You drink too much RB coolaid. There hasn't been a single complaint about VTT inlets from people who have actually purchased them. Even though Tony posted a video of secure fitment of his 2" inlets, he also manufactures 1.75" inlets for stock turbos with the original 2" inlets for stg2 hybrids.
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      08-29-2015, 10:39 PM   #9
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Quote:
Originally Posted by Heel Toe View Post
You'll see nice smoke gains when the rb's start smoking after 2k miles
I'm another RB customer that runs without smoke issues.

Had RBs for two years and compared to stock turbos you get a lot of midrange torque and power and about 30hp up top with just 93 US pump fuel or 98 ron.

Now with inlets, Any inlets, using just pump fuel would be more viable with more top end power provided.
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