08-16-2024, 01:35 PM | #1 |
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Anybody running the Carbahn tune on a 21+?
Was wondering if anybody here is running the Carbahn tune on a 21+ car, and what you think about it.
Dinan tunes in the past are a good balance of gains and smoothness without having to make compromises, and have good margins for safety. I see lots of people running Bm3 or MHD+, but nobody seems to talk about the Carbahn tune. Currently considering my tuning options for when my warranty is up next year. |
08-21-2024, 08:36 AM | #5 |
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Well, you still have to send your DME to Femto to unlock for 21+, whereas Dinan is a piggyback for 21+. So if you need to go through the Femto process, most take the proven path that gives more options for less money. Would be interested to hear if others have gone Carbahn though.
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Randy Johnson480.50 |
08-21-2024, 01:14 PM | #6 | |
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Already have a supercharged e92 m3 for my weekend car that gets spectacularly bad fuel economy. (~11MPG). Obviously don't care for the weekend car, but it is more of a concern for the M340 which is my daily. Would be nice to know much I am trading for the extra power. |
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08-21-2024, 01:58 PM | #7 | |
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Didn't notice any substantial decrease in fuel economy although I only had the car stock for 2-3 months. I've gotten 34-35 mpg on long highway trips, usually in the 25 mpg range for my normal city/highway mix of driving. Maybe Carbahn would have an idea ? |
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08-21-2024, 06:27 PM | #8 |
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That sounds pretty close to stock. Thanks for the info!
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08-21-2024, 11:57 PM | #9 |
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IIRC, I don't think you can even get a carbahn tune through femto, which is the only way to get our 21+ cars unlocked. Only other tune needs be done with the car physically in Germany (forgot name of the shop) and they want their specific tune installed. You have either BM3 or MHD. Unless you are talking about piggybacks in which case, no idea.
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08-22-2024, 03:50 AM | #10 | |
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https://carbahn.com/product/cbb58-04...m440i-z4-m40i/ |
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prostcfc177.00 PrezRoosevelt127.50 |
08-22-2024, 03:57 PM | #11 | |
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In addition, just the raw top numbers aren't necessarily the most important thing- its the power curve and how you get there. I'm also glad that carbahn charges for burbles because they are effing stupid. Hell, I'd pay money to have any sort of burble or pop deleted from the car entirely. I already have a high HP car for my weekend car. I'm not chasing peak numbers with the m340 as it is my daily, just trying to reclaim power left on the table from BMW. This video has Steve Dinan explaining the tuning safety issue well: |
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08-25-2024, 07:25 PM | #12 | |
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08-26-2024, 11:39 AM | #13 |
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Was talking to Carbahn this morning, and was asking how much burbling is in the tune.
They said they can set it up 3 ways. -Extra burbles -Same burbles as stock -No burbles at all As someone who absolutely despises burbles, removing all burbles from the car is extremely appealing. |
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08-26-2024, 11:40 AM | #14 |
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08-27-2024, 12:09 AM | #15 | |
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08-31-2024, 05:29 PM | #16 |
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Any chance you have any 1/4 mile numbers with that tune installed? I wonder how close it is compared to a MHD/BM3 stage 1 tune. I’m probably over thinking it like most but I know Carbahn is a really reliable option. I’m going back and forth between that and MHD/BM3, I just want to make sure the Carbahn is obviously quicker than stock. I can’t find a single performance test with that tune.
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09-01-2024, 10:04 PM | #17 | ||
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Years ago, I spent 45 minutes with Steve Dinan being educated re: ECU tuning and am familiar with his history building race engines for BMW. He also tuned those engines. If BMW trusted him to do that, I do, too. I'm aware of a number of the alternatives on the market and know they're quite popular; I just have no experience with them. Quote:
How much quicker, though, all depends. My speed at the beginning of the braking zone going into China Beach at Mid-Ohio went from 134.4 to 138.8 after I installed the Dinan Elite V2 piggyback on my 2017 B58. That's a major increase in that application. The Elite V2 has a little less power increase than does the tune now being offered by Carbahn for the 2021+ B58.
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TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; Full PPF |
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