03-15-2023, 03:41 PM | #1 |
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Stock/Stage 2/Stage 2+ E50/Big Turbo
Hey all!
Going to do a run down of the journey of a B58. First: baseline numbers came out to 327WHP/406WTQ 0-60 rang in at 4.75s No quarter mile reading unfortunately. |
03-15-2023, 03:43 PM | #2 |
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Stage 2:
-MST Intake -ARM Motorsports Charge Pipe -ARM Motorsports Down Pipe -BM3 OTS Stage 2 93 Oct tune Stuck at 326WHP and skyrocketed to 472WTQ an odd outcome to say the least. |
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03-15-2023, 04:15 PM | #3 |
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Also, how the car currently sits on 18/8.5 et 32
Toyo Proxes Sport Front: 225/40 Rear: 265/35 No spacers The car rarely slips from a dig on stage 2, and when it does its been below 30 degrees with salt. Huge difference in being able to put down the power. Even though shops did not even want to mount the tires, seeing that the rear tires are WIDER than the wheel… handling has not suffered. Will update once a sway bar is on the vehicle. |
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AmuroRay2851.50 abraxas61310.00 |
03-17-2023, 08:43 AM | #4 |
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We been lied to! no hp increase on stage 2!! lol
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CatchF22DirtyF30176.00 |
03-28-2023, 02:31 PM | #5 |
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03-28-2023, 02:36 PM | #6 |
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TU pump is in running on E50 BM3 stage 2+ tune and with the XHP Stage 3 tune.
Car puts down the power better and can stretch its legs mid to top end. This will need an LSD to put the power down the right way. |
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AmuroRay2851.50 |
03-28-2023, 02:36 PM | #7 | |
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How does stage 2+ compared to stage 2? Just wanted to rant. I wanted to go your route except in the wonderful state of California we only get 91 pump gas... And so I notice, my OTS tune options does not include stage 2+ for 91 pump gas for tu pump... I can either go dorch on stage 1 or stage 2+ with 93 gas... Ughhh |
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03-28-2023, 02:46 PM | #8 | ||
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You could always go TU pump (much cheaper and does the job unless you are looking to max out Pure850 on E) and run octane booster on pump gas. Just keep an eye on what timing does. That said, you should still be able to find 93. Stage 2 to 2+ was almost as different as stock to Stage 1. At 2+ E50 you are looking at 47% power increase over stock. The transmission tune did wonders as well. |
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03-28-2023, 03:27 PM | #9 | |
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2024 M2
2019 M240i- Sold |
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03-29-2023, 05:33 PM | #10 | |
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03-29-2023, 05:34 PM | #11 | |
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03-30-2023, 08:29 AM | #12 |
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I have had luck doing it that way but you do what you are comfortable with. Every time I change maps and fuel mixes I do a few log reviews to ensure things look clean. I have not tried out the ethanol maps as I'm not sure I want any more power. Running the stage 2+ 93/95 maps is plenty of juice for me.
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2024 M2
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04-06-2023, 02:53 PM | #13 | ||
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04-06-2023, 02:55 PM | #14 |
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New additions this week, aesthetics.
Added on the new CF flatbottom steering wheel. Will be starting a youtube channel and uploading the install video! |
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04-12-2023, 11:22 PM | #15 |
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Yo thanks for the write up! I’ve been lookin to just go stage 1 but was always curious about stage 2 and beyond! Quick question OP, but how is the fitment in the rear with 265? I’ve been looking into it but worried about how it fits on stock suspension.
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04-14-2023, 02:35 PM | #16 | |
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The wheel specs are above. These are also lighter than their APEX counterpart. It was difficult to go with JDM wheels on a German… but I digress. |
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04-14-2023, 02:39 PM | #17 |
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Here are some more photos of how the wheels poke just a hair, they do not look goofy, although I could care less about look: form/function.
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JMcLellan2535.50 |
05-25-2023, 04:22 PM | #18 |
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Update with the M240i
Got a midpipe and single exit track exhaust set up put on to lower weight. The sound is a plus. Performance mods are all set for this year with the build. Here is a youtube link for some clips with just the downpipe and midpipe from ARM Motorsports. More cosmetic improvements to come. |
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05-25-2023, 07:03 PM | #19 |
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Quick question, Did overall jumping from stage 1 to stage 2 result no gains other than torque really? Or what was the fueling problem going on you mentioned? Just curious to see if going from S1 to S2 is worth it or just doing the jump to S2+ and getting the fuel pump and downpipe + supporting mods in all at once the better move? Planning to keep 93 in the car though unless I decide to get a flex fuel sensor which I am very fond of on my F80 build. Thanks in advanced.
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05-26-2023, 09:22 AM | #20 | |
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That can actually be seen in the power curve as it cuts off on the way to the top of the stage 2 numbers. Stage 2+ is plenty of fun, and I actually highly recommend going with the BM3 E50 tune. Even without a flex fuel sensor, the car does a fantastic job of keeping fuel trims solid, and timing where it should be. The car, albeit gutted, walks away from 5.0 mustangs; even a roushe charged (twinscroll) from a 40 roll. For stock turbo and minor upgrades, the S2+ E blend maps are respectable in the B58. |
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kamilbaran142.00 |
05-29-2023, 09:33 AM | #21 | |
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That sounds like a super fun car, and I heard somewhere that when the car does hit low fuel with BMW it does cut power. Do you think if you redynoed S2 you would've seen an actual HP gain not just torque? Also I hope to see around your build sometime in chicago area it sounds like a beast! |
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05-29-2023, 10:48 PM | #22 | ||
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Will be getting dyno and draggy readings for S2+ with the E50 tune soon, keep an eye out for the post ! |
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