12-27-2019, 11:51 AM | #46 |
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Still interested in this. It's not the shift "fart" between shifts. It's the anti-lag sound after letting off the throttle
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12-28-2019, 05:39 PM | #47 |
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I don't think so, the non Competition is using N55B30T0. Also, please everyone to reply here in F30 froums (https://f30.bimmerpost.com/forums/sh...php?p=25618337).
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12-29-2019, 10:14 AM | #48 |
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Small update, I finally got to read an M2 DME last week. I will be trying to get it to work on my n55 soon.
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12-29-2019, 10:49 AM | #49 | |
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The good sign is that you can have this sound even with manual transmission. Our cars are equipped with ZF AT instead of DCT, shouldn't be a problem to get this to work |
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12-29-2019, 07:24 PM | #50 |
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The X5 M f85 has the antilag as well. That feature is independant of the transmission.
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01-04-2020, 03:00 PM | #51 |
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I was doing a little research as to what makes this sound in my M2c, as I had previously thought it was a DSG only thing before taking delivery of my (manual) car.
My understanding is that the car doesn't have a blow-off valve. Traditionally, a BOV works on the INTAKE side of the turbo and relieves excess pressure when the driver suddenly lifts off the throttle (as that pressure has to go somewhere and without a BOV will go right back into the turbo the wrong way, severely slowing it down and prematurely wearing on the turbo.) BMW's solution apparently is to just use the variable valve timing to overlap the intake and exhaust valves, letting the pressure wave blow right through the cylinders. Afterwards, it hits the exhaust side of the turbo, keeping it spooled and working as a sort of anti-lag. I think the braaap sound is probably a big pressure wave of air flowing through the cylinders without igniting. Anyway, that's my understanding of things, I may be wrong, but if not, it's a pretty cool solution to both prolong turbo life and keep the turbos spooled at the same time, as traditional, old school anti-lag is super hard on the exhaust side of the turbo. Someone please correct me if i'm wrong. |
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01-09-2020, 06:20 AM | #52 |
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If this is solved I'll buy a damn M240i or M235i
Time to move on from my M3, don't like the M4 enough to buy and a nice M235i I can get for 30k AUD where as the cheapest M2 ATM is around 60k... That's a lot of track mod money |
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01-10-2020, 08:12 AM | #53 | |
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Bad news is I tried the flash onto my N55 EWG and the software has FSC protection finally, so it's not possible to run it without some massive reverse engineering effort.
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01-13-2020, 05:24 AM | #54 | |
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'14 F20 M135i EWG FBO:// INJEN INTAKE // PURE INLET// TURBOSMART BOV DUAL PORT // //CSF INTERCOOLER // ER CP // SNOW S2.5 METH KIT // B58TU HPFP // NGK 97506 // ER DP // TMSS MID PIPE //MPE // MPBBK // UR STRUT BRACE // BM3 CUSTOM JORDAN E85 TUNE // XHP STAGE 3 // |
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01-13-2020, 05:30 AM | #55 |
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b58 make a similar ALS noise as well as they dont have a BOV or DV
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01-14-2020, 12:13 AM | #56 |
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If it's just a trick with the VVT and timing, then it should be able to be implemented on vehicles with no bov through some coding and a flashable tune. It's not just a turbo fart, it has a unique resonance. Protuningfreaks please work your magic!
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01-19-2020, 03:18 AM | #57 | ||
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Shet, thanks anyway for at least trying to get it to work. Everyone here appreciate your contribution. |
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01-31-2020, 01:47 AM | #60 |
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02-05-2020, 12:08 PM | #62 |
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02-05-2020, 01:19 PM | #63 |
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02-05-2020, 01:24 PM | #64 |
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Sounds like it's pretty close
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03-02-2020, 03:44 PM | #66 |
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Any update?
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als, anti-lag, bmw 235i, bmw m2, braap |
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