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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 > MY FBO STAGE 2+ e50 335i 2008 manual got beat by a scat pack



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      09-01-2024, 02:24 PM   #1
Juan9274
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MY FBO STAGE 2+ e50 335i 2008 manual got beat by a scat pack

So I raced a scat pack 4 different times and it beat me every time 30 roll and 40 roll. I’m so confused as to why I lose. I flatfoot to try to keep boost up but idk man … can someone tell me what’s going on I’ll post a log as well if maybe yall see something I don’t


https://datazap.me/u/juan9274/log-17...og=0&data=4-21
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      09-01-2024, 03:24 PM   #2
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One car is factory made to do drag races, one car is factory made to go around a corner.
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      09-01-2024, 03:46 PM   #3
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Quote:
Originally Posted by Juan9274 View Post
So I raced a scat pack 4 different times and it beat me every time 30 roll and 40 roll. I’m so confused as to why I lose. I flatfoot to try to keep boost up but idk man … can someone tell me what’s going on I’ll post a log as well if maybe yall see something I don’t


https://datazap.me/u/juan9274/log-17...og=0&data=4-21
Your car is not making target boost. Boost leak, bad wastegates or vacuum leak. Welcome to the club I have been having the same problem for a few months now. Also it looks like your bank 2 is running lean, could be O2 sensors, could be an injector, this could be why your DME is limiting actual boost but I am not sure about that. Fix this fueling issue first and take it easy on the car until you fix this.

Last edited by suspect; 09-01-2024 at 03:51 PM..
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      09-01-2024, 04:40 PM   #4
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Quote:
Originally Posted by Juan9274 View Post
So I raced a scat pack 4 different times and it beat me every time 30 roll and 40 roll. I’m so confused as to why I lose. I flatfoot to try to keep boost up but idk man … can someone tell me what’s going on I’ll post a log as well if maybe yall see something I don’t


https://datazap.me/u/juan9274/log-17...og=0&data=4-21
Your car is poorly maintained. Not making boost and loads of timing corrections.
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      09-01-2024, 05:19 PM   #5
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a log like this you probably be around 210whp, so makes sense a dodge's faster, even a 2002 srt4 might be faster

time to diagnosis this engine.

Last edited by oVeRdOsE.; 09-01-2024 at 05:24 PM..
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      09-01-2024, 11:24 PM   #6
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Dude you are going to blow up that engine... stop being an idiot and give that car some maintenance before beating on it. Sorry to be mean but sometimes people need a good slapping around before they get it.

You basically have problem with every single thing you could have problems with.

You are underboosting by at least 4 PSI across the board, timing corrections galore, 1 bank that is dangerously lean, fuel pressures that are lower than they should be etc....

When is the last time you did a spark plug change and some maintenance for the car? You either have the shittiest gas in the world or need to desperately change your spark plugs/coils. There is also something wrong with either the O2 sensor or something on the fueling side for bank 2. Your short term fuel trims are hard at 0 (which is impossible) and you are running super lean on that bank.

Also that log you posted is trash... next time lock your car to a specific gear (usually 3rd gear) start at around 2500-3000 RPM and peg the accelerator until you reach near redline. That way we can see what the car does throughout the RPM range.
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      09-02-2024, 12:54 AM   #7
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Bro I just got this car… 😭😭😭 I had one previously never had issues beating a scat with 91 😭😭 but I just did all maintenance on it finished right now plugs oil, coil packs. I’ll take another log how you said I’m not familiar with logging in and stuff like that but I have injectors on the way one was leaky left plug six black as hell
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      09-02-2024, 01:21 AM   #8
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Just looking in the engine I found a huge boost leak on the charge pipe air escaping everywhere smh who ever put the charge pipe before I had this car installed it wrong
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      09-06-2024, 12:00 PM   #9
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Quote:
Originally Posted by Juan9274 View Post
Bro I just got this car… 😭😭😭 I had one previously never had issues beating a scat with 91 😭😭 but I just did all maintenance on it finished right now plugs oil, coil packs. I’ll take another log how you said I’m not familiar with logging in and stuff like that but I have injectors on the way one was leaky left plug six black as hell
Here is some good information on logs that I just happened to see on another thread that someone posted, it could be helpful for you

https://boostmonkey.com/blogs/guides...335i-135i-535i
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