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      05-29-2023, 10:48 PM   #22
CatchF22DirtyF30
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Drives: BMW | B58 F22 || Audi B9 S4
Join Date: Jan 2023
Location: Chicago

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Garage List
2017 BMW M240i  [9.50]
2019 Audi S4  [10.00]
Quote:
Originally Posted by kamilbaran View Post
Quote:
Originally Posted by CatchF22DirtyF30 View Post
When dynoing stage 2, the car had about 15 miles of gas. In later discoveries, being below 30 miles will set the car into low power mode.

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.

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!
Thanks for checking out the write up! Its a great car and lots of fun. Definitely embodies the bmw driving experience.

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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