05-20-2019, 12:09 AM | #89 | ||
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Really wish you had WGDC, actual oil temp ( not just the counters ), EGT modelled, as well as Manifold boost pressure logged there. The IAT's were simply not under control, that map also looked more like a stage 2 93 octane N55 map, and not a stage 1 91. You were definitely running a more aggressive tune than what your fuel can call for.
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05-20-2019, 12:57 AM | #90 | |
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What I meant is - neither factory nor aftermarket calibration has a preventative measure to "ensure" fueling capacity. The save net is pulling off load when rail pressure drop to a point which is untouched. Likewise, you can demand as much boost as you want, turbo is just not making it and can die keeping trying. There is no control or monitor over its shaft speed, at least with our platform. You're right though that at factory aggressiveness it's nearly impossible to get to this point. And the OTS tune is clearly not calibrated for track use and without high octane. But let's be honest, how aggressive can the 16psi top end boost target be? Actual boost should be 15 or so thanks to the 1+psi underboost calibrated in. At the end, were you implying that the tuner is partially responsible?
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05-20-2019, 08:17 AM | #91 | |
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05-20-2019, 10:01 AM | #92 | |
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I’m running basically the same mods (vrsf ic vrsf charge pipe vrsf dp and a BM3 Stage 1 93 octane) I have access to 94 octane where I am and do shorter runs with lapping atleast once a month. Is his issue likely caused by fueling or cooling? |
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05-20-2019, 11:59 AM | #93 | |
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Without knowing the state of the car before and after the tune it’s hard to say. Regardless based off of the information we know, the tune was too aggressive for the state of being on the car. Not to say the OTS tunes are aggressive, just that his IATs were climbing rapidly and clearly he was encountering knock corrections |
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05-20-2019, 02:32 PM | #94 |
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Tune used was stage 1 91.
All PTF said was IAT climbed really quickly and an intercooler is an important upgrade. So now the question is, is even stage 1 91 too aggressive for track on moderate gas with octane booster or is the car that delicate? I know first hand that stock tune at least won't get super knocking at the track with stock intercooler, so is pushing that tiny bit of boost from stage 1 going to make it that dangerous? People should be informed otherwise to be better prepared for track of it is. |
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05-20-2019, 03:29 PM | #99 |
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BMW currently uses 0w30 for the M2 in almost the entire North America, and particularly in cold regions. The primary reason though is for economy reasons. LL01 is 5w30, LL01FE is 0w30.
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Current Performance Mods: CSF FMIC, ER CP, Fabspeed Cat, Aquamist WMI, GFB DV+, NGK 97506, BM3 (Stage 2 93 OTS), CDV delete, UCP, M2C/M3/M4 Strut Brace, M3/M4 Reinforcement Rings |
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05-20-2019, 09:20 PM | #102 |
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There's a whole thread about this, and this is off topic. Consensus seems to be that if you're in a hot environment (e.g Arizona, SoCal etc.) Then LL01 5w40 might be best, or a thick 0w30 like Redline. In colder climates, maybe 0w30 in the winter. Check out the dedicated thread though for more info.
Pretty unlikely that the wrong oil would cause a piston fracture though. Far more likely to be super knock. |
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05-21-2019, 02:12 PM | #103 | |
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05-21-2019, 02:25 PM | #104 |
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Anything that makes the engine produce more power than stock would be enough to deny coverage.
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05-21-2019, 04:22 PM | #105 | ||
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Why not drive up in there with a test pipe smelling like a diesel truck, full FBO and a stage 9 flash tune and tell them they can't do shit; "fix my car, bitch!" Let me know how that works out for you.. You'll playing on technicalities but I believe you know very well how dealer/warranty claim works, any mods, especially an illegally installed device to used to circumvent emission controls gives them an easy out on not fixing your vehicle, on any remotely connected issue. If you believe otherwise, you're practicing self-deception or is grossly misguided in your ways.. Good luck when your engine goes kaboom, with that mentality, you're going to need a lot of it. |
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05-21-2019, 08:52 PM | #106 | |||
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I said nothing about any other mod, only a dp.
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05-22-2019, 01:16 AM | #107 |
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OPs logs didn't look good at WOT. He had timing pull on 2 cylinders, often negative values. I wouldn't be tracking a car unless I had the fuel situation dialed in with proper octane and multiple clean logs. The fact he didn't even have a clean single or two gear pull to redline seems like he just flashed and drove the shit outta it. Our fuel in Western Canada is garbage, you need 1/3 can of Torco or Boostane just to run 91 OTS on the piss they sell us as 94. Even if you filled up in Washington State, the refinery feedstock is the same Oilsands heavy as Western Canada. It makes garbage gasoline and no one in government calls out the refiners.
All the rest of the downpipe nonsense is just the usual naysayers babbling on about nothing once someone has an issue. People get all high and mighty about emissions while enough natural gas is flared in the Permian everyday to power the state of Texas. Please. This was probably super knock due to shitty fuel and being oblivious about it. The problem with BM3 and MHD, it's too accessible to people who don't do the research, test everything out and verify it's safe. Expensive mistake, but the dealer and BMW Canada will most definitely tell you to pound sand. Just tracking the car voids the warranty, nevermind the rest of it. Next step should be a used motor from an M235i or an M2 that someone wrote off. Get a third party BMW shop to do the work. You will probably pay $15-20k CAD for the dealer to put a fresh one in from Germany. |
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05-22-2019, 09:06 AM | #108 |
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so given the fact that gas is variable, should we be running the 91 octane map for areas that have 93 to be safe? My IAT is around 75 to 80 and I'm getting shit timing through the gears with negative in 4th, no knock events but worries the shit out of me. Live in Ct and using 93 but not shell, I'm going to buy a can of torco and see what the logs say.
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05-22-2019, 09:41 AM | #109 | |
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05-22-2019, 09:50 AM | #110 |
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My M2 isn't tuned, but my old N55 335i that was tuned with MHD had timing pulls on 91 octane gas when the car was bone stock and running the stock map. Stage 1 didn't seem to make the timing any worse.
For me, the fix was filling up with 92 octane from WA whenever I could as it would barely have any timing corrections. Just in case I couldn't fill up down there I always had a couple small gas cans of e85 that I could add to our crap Canadian 91. I would mix 10-15% e85 to a full tank of 91 and that would also fix the timing corrections. I don't think I'd tune an M2 where we live unless you're willing to jump through the hoops of getting better quality gas. |
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