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BMW 3-Series (E90 E92) Forum
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Port injection advice
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08-04-2024, 01:30 PM | #1 |
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Port injection advice
I have a 2008 335 its FBO (DCI,FMIC,DP, AND UPGRADED CP). Im currently running a jb4/mhd BEF. Im looking to get PI and a custom tune for my stock turbos. Which port injection option should I go with and what controller should I use. Im under the assumption I should go with jb4 controller because with the other controller options it seems that the jb4 unit is just in the way. Should I toss out my jb4 and stick with mhd or should I do the ladder? Im wondering how those with a jb4 unit have there Pi setup. Any other tips and information is very useful
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08-04-2024, 01:41 PM | #3 |
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Turbos are decently healthy and im not looking to do all the labor to upgrade them just yet. Im just looking to make the most power out of them and I believe upgraded fueling is the next step. What do you personally think I should do next. Im new to the car space got the car about 2 years ago I've gotten most of the maintenance and have been slowly building it since
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08-04-2024, 01:58 PM | #4 |
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watch youtube, read articles, and datalog to verify its runs well. its an old platform and its all been tested. i would upgrade the lpfp and run e30-e50, then focus on mod to handle the extra speed/hp over stock (suspension and brakes)
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08-04-2024, 02:38 PM | #5 |
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I have a stage 2 fuel it pump in hand just havent installed it yet. I recently did my brakes and control arms car is on coilovers as well. Just wondering whats next after that other than turbos
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08-07-2024, 05:22 AM | #7 |
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With OEM turbo's, the most you can squeeze out of them is running full e85, roughly 500whp. That is what I did. My n54 sits at 38,xxx miles right with mostly healthy oem turbo's. You will need PI and dual LPFP's. I tried running it on just 1 walbro stage 2 fuel pump like you have but it is not enough for full e85.
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07 335i e92
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jb4, jb4 bef, n54 335i, port injection |
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