10-24-2020, 07:25 AM | #1 |
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M240i performance metrics - what would the gains be?
Hello all,
I value the collective experience here and I'd like to get a few informed estimates of the performance gains that I might get from a fairly simple plan. As a performance metric only (I don't actually drag race) what's a reasonable estimate of the quarter mile and 0-60 times (or the delta) for the following: M240i x-drive Catted downpipe (planning on Active Autowerke's). BM3 tune (OTS unless ill-advised) Torque/HP at the tires if you have an idea as well. Thanks much for your replies in advance. |
10-25-2020, 11:55 PM | #3 |
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Same question. I'm throwing a downpipe this Friday and going stage 2. So excited! The stage 1 BM3 OTS map was definitely noticeable. I'm expecting the same with a DP
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10-26-2020, 08:25 AM | #4 |
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For hard data, put it on a Dynojet 224 or 248 before you install the go-fast bits, and then put it back on the same dyno with the same operator after the install. That will provide a specific example of real world gains.
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2017 M240i: 23.8K, 28.9 mpg, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
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10-26-2020, 09:10 AM | #5 |
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Right. Just trying to essentially get from those in the know what their data (or experience) look like. Curious as to what to expect. While data will vary, there should be a fairly narrow range of gains
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10-26-2020, 10:14 AM | #6 |
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OTS maps
Stage 2 91 octane: up to 24% HP / 32% TQ Stage 2 93 octane: up to 26% HP / 32% TQ Stage 2 E30 octane: up to 30% HP / 35% TQ You will be able to extract 20% more power with a custom map your time will heavily depend on your tires and your driver skills
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10-26-2020, 12:06 PM | #7 | |
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10-26-2020, 01:36 PM | #8 | |
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If you are familiar with datalogging, you can do so with bm3 and see how the car is reacting to the extra power.
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10-26-2020, 02:07 PM | #9 | |
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10-26-2020, 03:39 PM | #10 | ||
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10-26-2020, 06:20 PM | #11 | |
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10-26-2020, 07:21 PM | #12 | |
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Mind you, this is a given, no matter when or where you go for advice..anywhere...anytime. This is just how it is.
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2017 M240i: 23.8K, 28.9 mpg, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
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; GTechniq Crystal Serum Ultra Ceramic; Suntek PPF Last edited by dradernh; 10-26-2020 at 07:26 PM.. |
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11-01-2020, 10:05 AM | #13 |
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If you want the best... An in car tune cannot be beat! The boxed tunes, one setting made for all, work, but isn't the best idea as every engine is different! Altitude, gas profile, temperatures, etc., will factor in. So asking a question of what to expect is arbitrary, but otherwise well documented!
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01-07-2021, 03:31 AM | #14 | |
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01-07-2021, 08:19 PM | #15 | |
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I don't understand the fascination with OTS tunes. Then you all end up posting this broke or that broke. Work with a custom tuner, understand what he tailors to, and what he recommends, and enjoy your car. More than likely you will be running a tune better suited to your particular car than any OTS trash one can run. |
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