09-03-2019, 05:59 AM | #23 | ||
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Stage 1 3rd Gear: http://www.bootmod3.net/log?id=5d5a1459ae729b5f706741e8 Stage 1 4th Gear: http://www.bootmod3.net/log?id=5d5a1463ae729b5f706741e9 Like I said, post logs to show what you're talking about so we can fill this thread up with data. At least with bootmod3 there's no difference between gears. Boost, timing, and load are all the same. Load is primarily based on RPM and throttle angle, not gear. Quote:
I agree, our cars seem to like timing more that boost. |
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09-03-2019, 09:24 AM | #24 |
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Car: 2019 M240i xdrive M Performance Edition
Mods: BM3 Stg 2 E30 OTS, xHP Stg 3 TCU Flash, ER Catless Downpipe. MPPSK Exhaust, FTP Intake + Intake Pipe, FTP Chargepipe, NGK 94201 gapped to .022 Fuel used: E30 (Mobil 93 + Mobil E85) Gear: 3rd - 2500rpm to 6650rpm shifting into 4th. IAT: 101f Boost: 16 PSI AFR: 12.84 Timing: 14.5 degrees http://www.bootmod3.net/log?id=5d5f4d0cc090c6120e71fd12 |
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09-03-2019, 09:29 AM | #25 | |
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09-03-2019, 09:32 AM | #26 |
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It's kind of annoying to be honest. I opened a ticket with PTF about the throttle closure issue and Halim said through adaptation, the throttle closure issue should take care of itself. However, that has not been the case. You can definitely feel it in 3rd and 4th gear when you floor it. It feels like the car isn't going or hesitating then it blasts off. I'd give up the blast off feeling for a more progressive/linear onset. I feel like its hurting my numbers too (1/4 and 60-130mph).
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09-03-2019, 10:01 AM | #27 |
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09-03-2019, 11:55 AM | #28 |
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Can someone look at this? It's on bm3 stage 2 93 octane
http://www.bootmod3.net/log?id=5d6e5ba2ae729b405635f152 http://www.bootmod3.net/log?id=5d6e5b82ae729b405635f151 I'm worried about the knock, should I be? Anything else to look at? Thank you guys Last edited by msk340i; 09-03-2019 at 12:07 PM.. |
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09-03-2019, 12:33 PM | #29 | |
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I don't get it why are you worried ? your detected knock is zero.
Unless you are hearing pinging sound from the engine then you should be worried. Quote:
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09-03-2019, 01:00 PM | #30 |
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09-03-2019, 01:26 PM | #31 |
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You mean the 2 spikes at 2000 and 2500 RPM ? That's minor knocks.
You worry if knock are higher and last far more than that. It could also be a misfire not a knock. Last edited by IMS-340C; 09-03-2019 at 01:34 PM.. |
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09-03-2019, 01:35 PM | #32 |
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09-03-2019, 02:02 PM | #33 |
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09-03-2019, 02:44 PM | #34 |
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09-03-2019, 02:49 PM | #35 |
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09-03-2019, 07:46 PM | #36 |
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How was this determined? Generally higher compression ratio cars do extraordinary with gains when adding boost... i.e. the 5.0 with a supercharger is a beast due to high compression motor.
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09-03-2019, 07:50 PM | #37 | ||
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When you log, start above 2000rpm. That's the main difference I see between your too logs and likely what caused the knock in the second log. Quote:
Until I get on a dyno and adjust my tune I can't say for certain. Just what I'm seeing to be typical since our tunes rarely push over 20 psi. |
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09-03-2019, 09:21 PM | #38 | |
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09-04-2019, 03:44 AM | #39 | ||
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Guys you are missing the key factor here, OCTANE.
Yes high compression and high boost should have great power assuming using very high octane fuel. High compression + high boost = knock > Retarded timing > Less power. Add the appropriate octane fuel to the equation and you are fine, also putting into consideration ambient temperature. I witnessed this personally when I ran stage 1 with more boost than MPPSK I actually had less power at top end as the only fuel available here is like 88 octane. Even with MPPSK and only 14 PSI of boost at 6500 RPM my timing is around 8-10 degrees which is very bad. Quote:
Quote:
Last edited by IMS-340C; 09-04-2019 at 04:14 AM.. |
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09-04-2019, 05:42 AM | #41 |
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Stage 1 E30 logs. I always have one cylinder lagging behind, but it tends to catch up by redline. It looks like everything is the same except they increased the timing to 15°. It definitely feels faster than 93.
http://www.bootmod3.net/log?id=5d6f91bdc090c652e3aa365c http://www.bootmod3.net/log?id=5d6f91bec090c652e3aa365d |
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09-04-2019, 05:48 AM | #42 |
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So one of the reasons I made this thread is being shown. I'm having trouble seeing the difference between Stage 1 and Stage 2. Are there any other stage 2 logs out there? I thought it had a higher boost target. And I don't really see how it's taking advantage of a downpipe or why it's needed.
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09-04-2019, 07:59 AM | #43 | |
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I was also wondering the same thing, what's the difference in tuning between stage 1 and stage 2 same octane.
We know Decat release exhaust gases out of the cylinders faster but how can we benefit from that in terms of tuning ? Quote:
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09-04-2019, 08:45 AM | #44 |
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logs should be done after some WOT pulls. as this ecu will target less right after writing or e.g. after 1-2 WOT pulls. It needs more to make adaptations. Usually stage 1 gives ~1.1 bar (16psi) at ~6200rpm, stage2 gives 1.3 bar (19psi) at the same rpms.
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