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06-04-2020, 09:56 PM | #45 | |
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06-04-2020, 09:59 PM | #46 | |
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Is desensitizing the knock sensors a thing? I didn't realise this. |
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06-04-2020, 10:12 PM | #47 | |
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On nozzle placement usually one in each chargepipe is fine but nozzles can become clogged or other things can limit flow. One of the JB4 meth safety systems is to monitor fuel trims in each bank and alert you if they are more than 15% apart so you can check it out. |
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06-04-2020, 11:12 PM | #48 | |
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From my logs I can see timing advance doesn’t ever go past 12-12.5 max. Usually around 11-11.5. From what I understand this isn’t very aggressive? As for lean condition, the AFR logs look ok. So perhaps it’s lean condition in that 1 cylinder you mean? Possibly uneven meth distribution? From what I can see and understand, knocking in one cylinder USUALLY doesn’t point to a tuning error, rather it’s a hardware issue. Correct me if I’m wrong please. I’m still learning as well Last edited by E92inSG; 06-05-2020 at 10:06 PM.. |
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06-05-2020, 11:11 AM | #49 |
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06-05-2020, 03:22 PM | #51 |
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Correct. This is nothing new, it's blown up many S65s, S54s, etc
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06-05-2020, 09:03 PM | #52 |
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I think your #2 and #5 are mixed up, #1 should be toward the front of the car. in most of the logs in looked #2 is pulling A LOT of timing...do you have direct port meth? My guess is you don't and you aren't getting a good distribution across all cylinders. If you are running port it could be a bad meth injector, but your car was trying to pull the timing.
EDIT, i see you were just running a couple nozzles in your Jpipe... It is surprising it wasn't showing any knock, i'm wondering how much the tuner turned that down/lowered the trigger value for knock. You don't have to go far to find a blown engine that was running meth. The best use for meth is when you use it for a little cooling and then you add a little timing/boost to gain 20hp, some guys use a lot of meth to gain 100hp on pump 93... Sorry this happened on your already built motor
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F80 M3-DCT MaxPSI CH, BM3 with F80 Paul E85 and Custom Rom track tune MCS 2Way Remotes
Signature SV104 E46 M3 F85 X5M https://www.instagram.com/fastmacm3/ Last edited by sly1types; 06-05-2020 at 09:20 PM.. |
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06-05-2020, 09:44 PM | #53 | |
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No I didn’t get 2 & 5 mixed up. The damaged plug was 2nd from the firewall/ 5th from the front. I was curious as well because all the logs show slight timing correction in #2 all the way until the final log. I’m running 2 nozzles in the charge pipes, not J-pipe. But it really does look like uneven distribution + knock sensor suppression both contributed. You can see multiple knock events on the 4th and final log. By then it was probably too late. |
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06-05-2020, 10:15 PM | #54 | |
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Since that is number 5 and that failure happened so quick I wonder if it was just running a little lean then it had plug or valve failure. It could be valve float, but I doubt it, are you on big turbos? I think that’s around 900hp on these. |
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06-05-2020, 10:57 PM | #55 | |
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Will update more once we open the engine next week. Currently more focused on getting the new engine in to get the car back on the road. Workshop also thinks its lean. Wouldnt AFR logs confirm lean condition if any? *edit* I will create a new thread next week after full tear down and will provide detailed photos and hopefully create an informed discussion on what exactly happened to hopefully prevent others from having the same catastrophic failures. Will not respond further in this thread until then, thank you all for the responses so far Last edited by E92inSG; 06-05-2020 at 11:16 PM.. |
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06-06-2020, 01:36 AM | #56 | |
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Current setup: Built engine + FBO Pure turbos stage 2+ BMS charge pipes EOS Billet top mount cooler Dual WMI nozzles on cooler (cold side) RK tunes J pipe CSF front mount cooler f80paul custom tune BM3 |
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06-06-2020, 04:52 PM | #57 | |
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1/2 mile trap speed 158 mph ecutek - bend calibration pro tune - flex fuel - mpe - stock turbos - oem+ Last edited by papasmurf_m3; 06-06-2020 at 06:03 PM.. |
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06-07-2020, 03:28 PM | #58 |
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Do any of these tunes offer any safety features? My M only has stage 2, so not really pushing it to hard. The OP has a built engine, turbos, E-85 and meth! Seems to me with all that invested, I would want some safety in there. My GTR is on Syvecs, and has a tone of safety built in. It took awhile to get it all dialed in, but it's perfect now. Expensive for sure, but worth it
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06-07-2020, 05:17 PM | #59 |
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People senselessly heavily modifying these cars way past their limits. No reliability! Interesting how some refuse to blame the tunes and try to protect the tuners! It’s not always the car! I wouldn’t trust any tuners on this platform. Some that a few years ago were just plain forum members. I’ll stick with my BM3 OTS tunes on both our cars!
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06-07-2020, 05:20 PM | #60 |
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06-07-2020, 05:23 PM | #61 | |
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These customers also generally want to flash it and be done with it...but a true, bespoke calibration moulded to the car requires a higher number of revisions to dial everything in properly. Mechanical problems/diagnosis typically requires a lot more time investment as well and isn't a part of the agreement when you purchase a basic flash tune from whichever tuner for whichever platform. My preferences are to have a more safe/reliable tune with factory protections in place and limiters not set to max; torque limiters on my build are set proper and not maxxed out. Many other limiters such as air temp correction are more conservative than stock on my build since when you increase boost and power levels, everything is going to warm up a lot faster so why would you leave or increase the air temp limiters.
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06-07-2020, 05:30 PM | #62 | |
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06-07-2020, 06:45 PM | #63 | |
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06-08-2020, 12:30 PM | #64 | ||
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06-08-2020, 08:04 PM | #65 |
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I've stayed away from e85 tunes....have 85,000 miles VFstage 2 93 octane , full exhaust dp mpe muffler, CSF intercooler, carbon intake....not one check engine light or any issues, I down shift do 3rd gear pulls against mustangs , dodges , vettes...car is fast
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