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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 > Pure stage 2 Meth vs TBI



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      09-22-2015, 03:36 PM   #1
BarberRider
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Pure stage 2 Meth vs TBI

I have a pure stage 2 on the way, I am wondering if I should use meth or TBI for extra fuel. I kind of want the car to run fine on 93 alone. So I think that eliminates the e85 BEF, and without that I cant run e50, so no need for tbi.

Is my best option to just use meth + e20 or e30 (possibe 93 BEF)?

I know people with tbi are pushing 28psi. Im wondering how much lower boost I would have to target with the meth setup I mentioned? Thanks
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      09-23-2015, 02:20 AM   #2
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Quote:
Originally Posted by BarberRider View Post
I have a pure stage 2 on the way, I am wondering if I should use meth or TBI for extra fuel. I kind of want the car to run fine on 93 alone. So I think that eliminates the e85 BEF, and without that I cant run e50, so no need for tbi.

Is my best option to just use meth + e20 or e30 (possibe 93 BEF)?

I know people with tbi are pushing 28psi. Im wondering how much lower boost I would have to target with the meth setup I mentioned? Thanks
Running meth for fuel volume is a bad idea. I ran it for a few months because nothing else was available.

Now I run TBI, E35 mix daily and small meth nozzle just for IAT cooling.
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      09-23-2015, 09:04 AM   #3
Mike@N54Tuning.com
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Quote:
Originally Posted by Darkhold View Post

Now I run TBI, E35 mix daily and small meth nozzle just for IAT cooling.
The above is a great combination!

Mike
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