BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Any catastrophic failures with tuning?

Post Reply
 
Thread Tools Search this Thread
      11-08-2019, 03:52 PM   #23
cecaa850
Lieutenant
United_States
182
Rep
515
Posts

Drives: 2018 M2
Join Date: May 2018
Location: South East TX.

iTrader: (0)

Quote:
Originally Posted by VisualEcho View Post
If you're going custom turbo, then yeah, custom tune. My comments were about a largely stock car, save for the IC, DP, and gas.





But it's usually not. No one wastes money on a custom tune that they can get with an OTS tune unless they are doing non-standard mods, or want to wring the most power out of the car.

I think we can agree to disagree here, as I agree that a custom tune can be just as safe as an OTS tune (or safer), it's just that it's usually not. The whole reason the companies that make OTS tunes are in business is because of how safe their tunes usually are.
You can have one of several different performance cats or open down pipe and use the same OTS tune. You can have a myriad of different intercoolers and flow rates and use the same OTS tune. You can have a stock exhaust or a muffler delete and use the same OTS tune. Same with intakes. I don't subscribe to the one tune fits all school of thought. I also don't think that people only get custom tunes to extract the last bit of power out of their engine. I wouldn't even if I had a stock turbo.
Appreciate 0
      11-09-2019, 01:30 AM   #24
XutvJet
Brigadier General
2628
Rep
3,471
Posts

Drives: 2016 M235 6MT
Join Date: Mar 2016
Location: Kansas City

iTrader: (-1)

You'll likely be ok with those mods but you are pushing the limits of the fuel system. One flake out of the fuel pump under extreme load could cause a major knock event that could take out a piston or hit the piston so hard that it hammers the rod right through the oil film of the rod bearing and then you spin a bearing.

If hearing this makes you nervous, then tuning and modding may not be for you. Sure, lots of us run way more power than stock, but plenty of turbo BMW motors have died early lives stock, lightly modded, heavily modded, etc. There are risks to modding and driving hard.

Don't trust anyone that says it will be fine assuming your tune is perfect unless they're backing that up with a warranty. The burden of proof is on you. They have many outs in the event of a failure. BMW will very likely deny warranty coverage too if something fails. You are pushing the motor outside its design limits and safeguard thresholds.

If you do tune, definitely run the highest octane you can and preferably stick to a 91 octane tune even if you're running 93 or higher. Watch your oil levels and change it regularly. I've done used oil analysis three times now and BMW 0w30 is done by about 5000 miles before it starts falling out of it's viscosity range.
Appreciate 0
      11-09-2019, 09:33 AM   #25
VisualEcho
Lieutenant
VisualEcho's Avatar
United_States
678
Rep
572
Posts

Drives: 2018 BMW M2
Join Date: Sep 2019
Location: Missouri

iTrader: (0)

Garage List
2018 BMW M2  [0.00]
Quote:
Originally Posted by XutvJet View Post
BMW will very likely deny warranty coverage too if something fails. You are pushing the motor outside its design limits and safeguard thresholds.
This is why I personally only recommend going as far as Dinan goes, because we know the factory warranty would cover it, so it's within the general limits of the engine.
Appreciate 0
      11-11-2019, 01:30 PM   #26
hz101
Private First Class
United_States
64
Rep
187
Posts

Drives: 2018 M2
Join Date: Feb 2017
Location: Baltimore, MD

iTrader: (0)

Quote:
Originally Posted by VisualEcho View Post
This is why I personally only recommend going as far as Dinan goes, because we know the factory warranty would cover it, so it's within the general limits of the engine.
I'm curious to see what kind of N55 flash tunes they come up with. They told me they should be out by the end of this year or early next year, so I'll probably go with that. People like to take different levels of risk. For me, the peace of mind that comes with a warranty is important!
Appreciate 0
      11-19-2019, 02:39 PM   #27
Nezil
Major
Nezil's Avatar
887
Rep
1,216
Posts

Drives: LCI '18 M2
Join Date: Jul 2017
Location: San Francisco Bay Area

iTrader: (0)

Quote:
Originally Posted by VisualEcho View Post
This is why I personally only recommend going as far as Dinan goes, because we know the factory warranty would cover it, so it's within the general limits of the engine.
Err... no, the factory warranty doesn't cover Dinan mods. Dinan provides a factory equaling warranty that covers claims when the factory won't. Their piggy back offerings are conservative, and I've not heard of any claims to Dinan for catastrophic failures, but my understanding is that if your car isn't 100% BMW + Dinan, their warranty and BMWs is voided. If you go with a third party FMIC with your Dinan setup, because their FMIC sucks, you're out of luck. Fit the Dinan resonator delete yourself, you may have issues making a claim etc.
__________________
2018 ///M2 LCI, LBB, 6MT,

Current Performance Mods: CSF FMIC, ER CP, Fabspeed Sport Cat, Aquamist WMI, GFB DV+, NGK 97506 Plugs, BM3 (Stage 2 93 OTS)
Appreciate 0
      11-19-2019, 03:06 PM   #28
johnung
Lieutenant Colonel
United_States
1101
Rep
1,678
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by hz101 View Post
I'm thinking of adding the following mods:

Akrapovic catted downpipe
VRSF charge pipe
Wagner intercooler
BM3 stage 2 tune

I don't think I'm pushing the car to its limits, but I am aware of the risks associated with aftermarket tuning. But I'd like to hear from those who've had MAJOR breakdowns (blown engine, etc.) as a result of a similar setup. Am I being too much of a p**sy? LOL

Any feedback would be appreciated!
You really can't go wrong with your stated N55 mod plans. You'll need NGK 97506 spark plugs gapped down to 0.022". You don't say which Wagner but I highly recommend the Wagner Competition series FMIC because it's quicker flow, less intake pressure drop and less turbo lag- so well worth slightly higher cost. Fabspeed catted downpipe is guaranteed against Check Engine Lights so may want to include that in your models for consideration. Same for charge pipe. I believe that people have had good experiences with VRSF. I've used Evolution Raceworks charge pipe and can verify perfect fitment with the Wagner FMIC.

BootMod3 Stage2 N55 EWG 93 octane is a smooth powerful tune and the included automatic transmission tune is tremendous. I considered a custom tune ($500+) but people I respect advised against it. The OTS tune is powerful and safe. I was told that it would only be worth spending $ on a custom tune if I was installing more exotic fueling and/or a larger turbocharger.

Good luck with your mods!
Appreciate 1
hz10163.50

      11-19-2019, 03:16 PM   #29
VisualEcho
Lieutenant
VisualEcho's Avatar
United_States
678
Rep
572
Posts

Drives: 2018 BMW M2
Join Date: Sep 2019
Location: Missouri

iTrader: (0)

Garage List
2018 BMW M2  [0.00]
Quote:
Originally Posted by Nezil View Post
Err... no, the factory warranty doesn't cover Dinan mods. Dinan provides a factory equaling warranty that covers claims when the factory won't. Their piggy back offerings are conservative, and I've not heard of any claims to Dinan for catastrophic failures, but my understanding is that if your car isn't 100% BMW + Dinan, their warranty and BMWs is voided. If you go with a third party FMIC with your Dinan setup, because their FMIC sucks, you're out of luck. Fit the Dinan resonator delete yourself, you may have issues making a claim etc.
Yes, and no.

Most dealers will look the other way if the part says Dinan. Only some will look the other way if it doesn't...
Appreciate 0
      11-29-2019, 06:53 PM   #30
cookiesowns
;)
cookiesowns's Avatar
Taiwan
422
Rep
753
Posts

Drives: M2C 6MT, 535i N54, X3 N55
Join Date: Jan 2011
Location: Irvine, CA

iTrader: (0)

Quote:
Originally Posted by acl26 View Post
You mean get super knocking like mine?

If you get this at the track even if the engine doesn't die the piston is likely to be cracked either way.

But keep in mind that super knocking and knocking is not the same.

Next time I go back to my mechanic I will try to capture how bad the piston was. They took it out but I forgot to take a picture last time.

To that point, I don't recall anyone that saw my logs for that day indicated any issues with knocking or octane.

IAT was an issue though.

Logging will help with regular knocking but not super knocking.

Don't use BMW supplied oil. This was one of variables that changed from my usual track days and likely contributed to oil intrusion causing the hot spot on the side of the piston.

If you run really sticky tires stay out of lower half of RPM range. LSPI is another major variable that leads to super knocking.
Is that #6?
Appreciate 0
      11-29-2019, 07:39 PM   #31
Nezil
Major
Nezil's Avatar
887
Rep
1,216
Posts

Drives: LCI '18 M2
Join Date: Jul 2017
Location: San Francisco Bay Area

iTrader: (0)

Quote:
Originally Posted by cookiesowns View Post
Is that #6?
Itís either 1 or 6. Clearly from the photos itís one end.
__________________
2018 ///M2 LCI, LBB, 6MT,

Current Performance Mods: CSF FMIC, ER CP, Fabspeed Sport Cat, Aquamist WMI, GFB DV+, NGK 97506 Plugs, BM3 (Stage 2 93 OTS)
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:59 AM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST