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      11-01-2021, 07:57 PM   #23
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Originally Posted by thejeremyman9 View Post
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Originally Posted by XutvJet View Post
Lastly, I don't believe for a second that any BMW running 50%+ more power than stock will be reliable. The motor might be OK for a while but other things are going to be taxed. Also, you'll be dealing with lots of annoying little gremlins all the time.
Conceptually I somewhat agree with the first point in that pushing hardware too far almost unavoidably causes some form of increased wear and tear, the question is where that threshold is and if the increase is negligible or not. Quantitative data doesn't really exist, but all anecdotal evidence for the N55 (EWG in particular) suggests that running OTS maps with supporting hardware and the necessary maintenance isnt compromising reliability in any ways with all else being equal (i.e., driving the tuned car the same way you would the stock car). I will caveat that with saying i think things like aggressive custom tunes and BM3 stage 2+ are too aggressive for stock turbo if you are going to track the car or otherwise push it hard.

As to the 2nd point, the "annoying little gremlins" are things that are likely going to occur regardless of your tune/increase in power output. Those are the typical issues that occur on even stock N55s.

So yeah, not disagreeing fundamentally or trying to argue, but I just don't want someone to read this and think "omg if i tune im going to cut my car's life in half". It's a bit more nuanced than that and most people aren't as deeply involved in the forums as we are so they don't have the benefit of seeing what does and does not happen.
Well said. I'm curious to hear more about your comment about BM3 Stage2+ being to aggressive on stock turbo. The purpose of that tune is to gain more power out of the stock turbo if it's had a HPFP upgrade and access to ethanol.

The one negative I have heard with this tune is to be careful not to use under E30, so using say E40 is a good idea. But that's similar to telling someone running a 93 octane tune not to put 91 octane in the tank.

Curious if you heard of issues tracking with the BM3 Stage2+ E30 tune?
I had thousands and thousands of extremely aggressive miles on the 2+ and an even more aggressive custom e85 tune on the stock turbo with no issues. I think something like 14k
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      11-01-2021, 08:25 PM   #24
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Originally Posted by johnung View Post
Well said. I'm curious to hear more about your comment about BM3 Stage2+ being to aggressive on stock turbo. The purpose of that tune is to gain more power out of the stock turbo if it's had a HPFP upgrade and access to ethanol.

The one negative I have heard with this tune is to be careful not to use under E30, so using say E40 is a good idea. But that's similar to telling someone running a 93 octane tune not to put 91 octane in the tank.

Curious if you heard of issues tracking with the BM3 Stage2+ E30 tune?
To be clear that was just my opinion, as in i wouldn't track the stage 2+ tune or something that pushes WGDC to basically 100% in the upper RPM. By track i mean 15+ minute lapping sessions, not "track" as in running a 1/4 mile. That's just my tolerance level, and others may feel different. In no way saying there is anything wrong with the tune.

As to the fueling, yes, the tune seems to like E40-50, and the datalogs and fuel trims seem to support that.
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      11-02-2021, 12:44 PM   #25
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Quote:
Originally Posted by thejeremyman9 View Post
Conceptually I somewhat agree with the first point in that pushing hardware too far almost unavoidably causes some form of increased wear and tear, the question is where that threshold is and if the increase is negligible or not. Quantitative data doesn't really exist, but all anecdotal evidence for the N55 (EWG in particular) suggests that running OTS maps with supporting hardware and the necessary maintenance isnt compromising reliability in any ways with all else being equal (i.e., driving the tuned car the same way you would the stock car). I will caveat that with saying i think things like aggressive custom tunes and BM3 stage 2+ are too aggressive for stock turbo if you are going to track the car or otherwise push it hard. (Edit: This is my opinion/tolerance level.)

As to the 2nd point, the "annoying little gremlins" are things that are likely going to occur regardless of your tune/increase in power output. Those are the typical issues that occur on even stock N55s.

So yeah, not disagreeing fundamentally or trying to argue, but I just don't want someone to read this and think "omg if i tune im going to cut my car's life in half". It's a bit more nuanced than that and most people aren't as deeply involved in the forums as we are so they don't have the benefit of seeing what does and does not happen.
I totally agree. My point was to those that say you can "reliably" make 500+whp/wtq on a stock block/head/transmission N55 or B58. Yes, LOTS of people have done it, but a vast majority would admit that they routinely have issues/gremlins to deal with because of all that extra power and all the mods needed to run such power. I don't buy for a second that a B58 pushing 600whp+ is going to be anywhere nearly reliable as a stock or even basic tuned B58.

An N55 EWG pushing 350-390whp on pump gas should be fine, especially considering the M2 N55 is pushing ~340whp stock. My M235 has been pushing around ~370whp/390wtq and I'm not worried.
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      11-05-2021, 08:17 AM   #26
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Quote:
Originally Posted by thejeremyman9 View Post
Conceptually I somewhat agree with the first point in that pushing hardware too far almost unavoidably causes some form of increased wear and tear, the question is where that threshold is and if the increase is negligible or not. Quantitative data doesn't really exist, but all anecdotal evidence for the N55 (EWG in particular) suggests that running OTS maps with supporting hardware and the necessary maintenance isnt compromising reliability in any ways with all else being equal (i.e., driving the tuned car the same way you would the stock car). I will caveat that with saying i think things like aggressive custom tunes and BM3 stage 2+ are too aggressive for stock turbo if you are going to track the car or otherwise push it hard. (Edit: This is my opinion/tolerance level.)

As to the 2nd point, the "annoying little gremlins" are things that are likely going to occur regardless of your tune/increase in power output. Those are the typical issues that occur on even stock N55s.

So yeah, not disagreeing fundamentally or trying to argue, but I just don't want someone to read this and think "omg if i tune im going to cut my car's life in half". It's a bit more nuanced than that and most people aren't as deeply involved in the forums as we are so they don't have the benefit of seeing what does and does not happen.

I agree 100%. I've been running BM3 Stage 2 since I bought my car in August 2019 and 30,000 miles later. Haven't done anything but oil changes. Car runs great. I run the E30 mix most of the time also. And I beat the garbage out of the car to prove a point to one of my friends.
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      11-05-2021, 08:19 AM   #27
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Quote:
Originally Posted by XutvJet View Post
I totally agree. My point was to those that say you can "reliably" make 500+whp/wtq on a stock block/head/transmission N55 or B58. Yes, LOTS of people have done it, but a vast majority would admit that they routinely have issues/gremlins to deal with because of all that extra power and all the mods needed to run such power. I don't buy for a second that a B58 pushing 600whp+ is going to be anywhere nearly reliable as a stock or even basic tuned B58.

An N55 EWG pushing 350-390whp on pump gas should be fine, especially considering the M2 N55 is pushing ~340whp stock. My M235 has been pushing around ~370whp/390wtq and I'm not worried.
People who are driving around at 600 whp do not care about reliability anymore lol. I have a 650 whp single turbo G37. If at any point, the stock motor popped I would be okay with throwing another one in there. Those people built their car for racing it and MOST of those people have supporting mods for that power. No modified car will be as reliable as a stock power car to any degree.
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      11-05-2021, 11:54 AM   #28
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For the price of a 340i:

https://www.cargurus.com/Cars/l-Used...-c24393_L15709
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      11-05-2021, 12:08 PM   #29
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That's M340i prices.
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      11-30-2021, 11:46 AM   #30
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Well, bad choices were made this weekend lol. I could not find any good alpine white 340i's. So for fun, I decided to go test drive a 2020 BMW M340i that was close to me, and mannnnn this car is FUN. Makes so much power stock and handles really well. Ended up making an unexpected deal on it and bought it. Was not at all even thinking about buying an M340i but weird how things work out. This car is fully optioned, there's literally nothing else that can be added to this car. I am still getting used to the bigger body but I will definitely miss the F30 a lot. My first BMW ever.
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