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Surge of power n54 running MHD
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10-02-2016, 10:57 AM | #1 |
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Surge of power n54 running MHD
Hey, check my mods in the signature but basically I'm getting a big surge in power around 4000rpm. It's a real punch as the turbos wind in, a bit like an old 90s turbo car. Anybody have any ideas what it might be?
I'm wondering if I need to put something like a Kompact Dual Port KIT in?
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e91 335i MSPort 6MT | MHD Stage 2 +FMIC v7.1 | VRSF Catless DPs | Hartge ARBs | Quaife LSD | Eibach Springs | 313 Alloys | VRSF 7" Intercooler and Ingen Intake
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10-02-2016, 12:00 PM | #2 | |
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10-02-2016, 06:06 PM | #4 | |
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No, I don't want a surge of power, I want progressive, controllable power, and a lot of it. Like I said, it reminds me of an old 90s turbo at he moment. I actually managed to tune my old 1997 Volvo 850R to deliver power smoother than my 335i and that used to give standard 335is a run for their money. |
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10-02-2016, 06:08 PM | #5 |
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I will. I've got a bunch of logs on datazap but it doesn't really show up on WOT. It's more if you're around mid throttle and the just put on another 5-10% on the pedal
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10-02-2016, 09:45 PM | #7 | |
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10-03-2016, 02:57 AM | #8 | |
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![]() ![]() I did wonder, only on the MHD threads no one was really pointing to the tune so I wondered if there was something hardware related. I have a really nice stage 1 Hartge Map as mentioned above, but it's only stage 1. I wonder if that can be tweaked for my mods. I've got a copy of tuner pro, but have only tinkered with basic torque limits in the past.
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e91 335i MSPort 6MT | MHD Stage 2 +FMIC v7.1 | VRSF Catless DPs | Hartge ARBs | Quaife LSD | Eibach Springs | 313 Alloys | VRSF 7" Intercooler and Ingen Intake
![]() Last edited by Theador; 10-03-2016 at 04:16 AM.. |
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10-03-2016, 08:10 AM | #9 |
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Not sure what version you have but I had the same issue in 5.1 until I loaded 7.1 for me it is exactly what you are looking for very strong linear power. Great description you gave like a 930 turbo when it finally got spooled up slammed your head against the head rest gave a new meaning to the Porsche philosophy of handling a corner "slow in fast out."
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10-03-2016, 09:27 AM | #10 | |
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I'm running the 7.1 which is way smoother than the 5 and 6 versions, but just has this surge issue. Marshal did suggest reverting right back to stock map and doing a full re-instal which I haven't tried. I'll give that a go.
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e91 335i MSPort 6MT | MHD Stage 2 +FMIC v7.1 | VRSF Catless DPs | Hartge ARBs | Quaife LSD | Eibach Springs | 313 Alloys | VRSF 7" Intercooler and Ingen Intake
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10-03-2016, 10:54 AM | #11 | |
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Those who like to go to track courses don't like it as it can be dangerous, those who, well, race in a straight lines it has its pros I didn't even realize it was a MHD OTS map you were talking about as there was no mention in the OP and I wasn't paying attention to your sig and those things are not always up to date. You would need to reach out to WedgePerformance, I usually don't comment on MHD OTS map concerns which are addressed by WedgePerformance and MHD on the MHD threads. |
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10-03-2016, 05:43 PM | #12 |
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I just tried the Stage 1 + FMIC v7.1 tune and it is as smooth as butter on my car. Almost makes the car seem slow. I have a e30 tune that feels more like a 150 shot than boost kicking in.
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10-04-2016, 02:47 AM | #13 | |
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Marshal, who is at wedge or MHD said to try flashing back to stock and then reinstall. I'll try that, otherwise I'll be looking at a custom map, maybe based on my stage 1 bin file which is smooth as silk.
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e91 335i MSPort 6MT | MHD Stage 2 +FMIC v7.1 | VRSF Catless DPs | Hartge ARBs | Quaife LSD | Eibach Springs | 313 Alloys | VRSF 7" Intercooler and Ingen Intake
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10-04-2016, 02:52 AM | #14 |
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This is the thing. Both the factory tune and my stage 1 custom tune have no shot/kick/boost problems, just a nice progressive and linear throttle response which gives you complete confidence in the car. The last thing I want is a weird surge of power when accelerating out of a corner.
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e91 335i MSPort 6MT | MHD Stage 2 +FMIC v7.1 | VRSF Catless DPs | Hartge ARBs | Quaife LSD | Eibach Springs | 313 Alloys | VRSF 7" Intercooler and Ingen Intake
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11-02-2016, 03:56 AM | #15 | |
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http://www.datazap.me/u/mybeamerclea...16-17-20-23-27 does stage 1 + fmix 91 oct max at 14psi? ![]() |
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11-03-2016, 04:19 AM | #17 |
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11-03-2016, 11:06 AM | #18 | |
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Include a screenshot of the MHD store page with VIN and ROM version. Do a 3rd gear pull from 2500 to 7000. The v7 maps are some of the smoothest most refined driving maps we have done. If there's an issue we should be able to get it resolved quickly. |
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