09-04-2022, 03:02 AM | #1 |
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'22 M440i JB4 Map 2 problems
I usually run on map 5 on my car but i recently tried map 2 with a e25 mix and it is terrible. The boost comes but cuts off and the car starts to shake. Whenever i floor it, the car will try to make boost but it bogs down hard. Any Suggestions?
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09-04-2022, 03:03 AM | #2 |
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I recently emailed terry for solutions and he said you can't run map 1 or 2 when you have a downpipe apparently. The additive maps don't work good with downpipe
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09-04-2022, 10:00 AM | #3 |
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im surprised to hear that, but Terry knows best
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09-04-2022, 04:04 PM | #5 |
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09-04-2022, 06:54 PM | #6 |
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09-05-2022, 08:09 AM | #8 |
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09-05-2022, 02:08 PM | #9 | |
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I'm going to confirm with BMS and update this thread Map Guide as of v15+ firmware: Map0: Stock tuning, fully disable JB4 Map1: Additive map with peak of 3psi over stock added (91 octane) Map2: Additive map with peak of 4psi over stock added (91-93 octane) Map3: Additive map with peak of 6psi over stock added (93+ octane) Map4: Absolute target map with peak of 20psi target (93+ and/or E30 octane) suggested for higher boost models like G chassis, Supra, and Z4. EWG required for proper control. Map5: Absolute target map with peak of 22psi target (E30+ fuel) suggested for higher boost models like G chassis, Supra, and Z4. EWG required for proper control. Map6: Custom tuning map allowing both additive (below 10psi) and absolute (above 10psi) targeting. Setting RPM1500 boost below 5.7psi will make entire map6 additive, setting above 6psi will make entire map6 absolute target. Map7: WMI map (boost varies based on WMI additive, meth flow, and other criteria) Map8: VALET / Low Boost Map
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09-05-2022, 02:24 PM | #11 |
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Just confirmed with Terry, Gen2 B58 can run Map 5
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09-05-2022, 02:32 PM | #12 |
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09-06-2022, 08:57 AM | #13 |
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This starting to get really complicated... I am trying to understand what to do here.
So Those who own m240, m340, m440 can run map5 on 93 octane no mixture? Does it matter if we run AA downpipe or any other high flow downpipe? I also reached out to Terry and will post a thread if he gets back to me so we all can have a clear understanding what to run with mix/no mix, with/our downpipe.
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09-06-2022, 09:12 AM | #14 | |
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Map5: Absolute target map with peak of 22psi target (E30+ fuel) suggested for higher boost models like G chassis, Supra, and Z4. EWG required for proper control. if you have a G chassis, Supra or Z4. Run map 5 with any setup.
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09-06-2022, 09:44 AM | #15 | |
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Map5: Absolute target map with peak of 22psi target (E30+ fuel) I do not mix, and map5 indicates E30+ fuel. So for those who are not mixing are we still sticking to map5 with pure 93 octane?
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09-06-2022, 09:49 AM | #16 | |
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G chassis can run map 5 with any setup
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09-06-2022, 10:29 AM | #17 | |
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Just note for someone new like me, running anything after map3, you will need to connect EWG connector.
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09-07-2022, 08:53 AM | #18 |
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