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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 > Please help read my mhd log



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      08-12-2024, 01:20 PM   #1
brokeboym3
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Hello, sorry if I am doing this wrong. I have a 2012 e92 335is with 101,000km. I have a Brad charge pipe, high flow downpipe, hks blow off valve, and dinan intake filter. I added mhd stage 2 too the car and have been loving it. I attached a data log and wanted to ask if there is anything that seem immediately wrong. I am about to replace my spark plugs, flush my coolant, break fluid, rear dif fluid, and transmission fluid.

I have attached one of my logs below however, it may not be the best and it took me a second to stop
https://datazap.me/u/brokeboym3/335i...og=0&data=3-20
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      08-12-2024, 05:03 PM   #2
CarAbuser
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Your low pressure fuel pump is on the way out. I'd replace that before it gets to the point of causing problems.

The boost looks good, wastegates are in the right ballpark for the pressure so no leaks or turbo issues.

There is a lot of small timing corrections. If the plugs have more than 30k on them, put new ones in, otherwise I think you should try other maps, try a lower octane stage 2+ map. I think you'd benefit from less timing and more boost.
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      08-12-2024, 05:13 PM   #3
brokeboym3
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Quote:
Originally Posted by CarAbuser View Post
Your low pressure fuel pump is on the way out. I'd replace that before it gets to the point of causing problems.

The boost looks good, wastegates are in the right ballpark for the pressure so no leaks or turbo issues.

There is a lot of small timing corrections. If the plugs have more than 30k on them, put new ones in, otherwise I think you should try other maps, try a lower octane stage 2+ map. I think you'd benefit from less timing and more boost.
Thanks for the advice. I’ll definitely replace the lpfp asap. I’m currently in Nova Scotia and they don’t sell anything over 91 octane out here so I’ve been debating getting a high octane boost. Im currently on stage 2 but I thout I needed a fmic before I went stage 2+? I know I can get more boost out of my turbos since stock the car gets 17psi on over boost but I’m not sure how I can raise the limit. Is there a lower fuel map I can go then 91 octane?
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