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Default TMAP QUESTIONS? - 05-23-2016, 09:00 AM
with the stock tmap sensor (135i n55) what's the highest possible boost that can be targeted? Also, with a stage one turbo upgrade from vtt is a 3.5 bar sensor necessary?

E82 n54 135i

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Terry @ BMS's Avatar
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Default 05-23-2016, 09:09 AM
20psi on the factory sensor. The 3.5bar is a good idea for any larger than OEM turbo even a Stage1. As the Stage1 can produce around 21-22psi in the midrange. Why cap it?

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Default 05-23-2016, 09:19 AM
Quote:
Originally Posted by Terry @ BMS
20psi on the factory sensor. The 3.5bar is a good idea for any larger than OEM turbo even a Stage1. As the Stage1 can produce around 21-22psi in the midrange. Why cap it?
Awesome I totally agree. Also, will the g5 2 step relay for manual transmissions work for n55 or perhaps the antilag system you guys sell?

E82 n54 135i

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crobond crobond is offline
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Default 05-23-2016, 10:09 AM
Quote:
Originally Posted by Terry @ BMS
20psi on the factory sensor. The 3.5bar is a good idea for any larger than OEM turbo even a Stage1. As the Stage1 can produce around 21-22psi in the midrange. Why cap it?
Fseries can also make 22psi midrange
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Default 05-23-2016, 09:33 AM
No 2STEP or antilag for the N55 yet. Sorry!

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frefer82 frefer82 is offline
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Default 05-23-2016, 10:09 AM
So terry i ahve the stage 1 pure turbo and all the hardware necesary for it, and i have the sensor laying around my house, i thouht that i cant install it whit out the stage 2 turbo.
if i install it i could get an advantage of performance ???
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Default 05-23-2016, 10:32 AM
You can install it. I have it installed with the stock turbo. Just gotta change the JB4 software to recognize it.

Mike Levy
2021 Tanzanite Blue II M550i xDrive
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frefer82 frefer82 is offline
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Default 05-23-2016, 10:38 AM
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Originally Posted by Mike_L
You can install it. I have it installed with the stock turbo. Just gotta change the JB4 software to recognize it.
mike a question, is there anithing else i need to change or only droped in the engine start the car wait for it and drive nuts jajajaja
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Default 05-23-2016, 10:53 AM
You need to make a change in the BMS software so the JB4 knows that you changed the MAP.

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F32Boost F32Boost is offline
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Default 05-23-2016, 11:40 AM
Can stock turbo N55 F32 do 20psi safely on E30 ?

Kaated DP , chargepiped & Intercooled
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Default 05-23-2016, 02:14 PM
Quote:
Originally Posted by frefer82
mike a question, is there anithing else i need to change or only droped in the engine start the car wait for it and drive nuts jajajaja
You will need to put a 1 in this setting for the JB4 to make sense of the sensor.
Name: TMAP Setting.jpg Views: 172 Size: 42.1 KB

Quote:
Originally Posted by F32Boost
Can stock turbo N55 F32 do 20psi safely on E30 ?

Kaated DP , chargepiped & Intercooled
You will need to log as you turn up boost to know for sure. I do not know the limits of the HPFP on the F series but with more air, you need more fuel. My guess is that you would be close to the limits of the pump.

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Default 05-23-2016, 12:06 PM
Not ***ted. Its gonna have a hard time passing 17 or 18. Even without one, my car peaked at just under 15psi on Saturday on the dyno (E30, Map 5).

Mike Levy
2021 Tanzanite Blue II M550i xDrive
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