500 whp on ACN 91

Hiflyer731 · 04-09-2024, 02:26 PM

Is this a resonable goal and what would get me there? It's a gen 1 B58.

G.Newt · 04-09-2024, 09:57 PM

Do you not have E85 access near you?

Hiflyer731 · 04-09-2024, 10:39 PM

Quote:

Originally Posted by G.Newt

Do you not have E85 access near you?

Not convenient access, it would be 30-40 min round-trip.

B58togo · 04-10-2024, 05:12 AM

You're not going to get anywhere close to that on 91 on the stock turbo. Even on E40-50 with a catless DP, upgraded HPFP and tune, you'll be maxed out around 480 wheel. You might hit your goal on an upgraded hybrid (Pure 800 or DAW), HPFP, catless DP and tune on 91, but these motors need octane to make big power. I suppose everyone's idea of what's convenient is subjective, but I wish I had E as close as you do.

DieselDuck · 04-10-2024, 10:25 AM

Quote:

Originally Posted by B58togo

You're not going to get anywhere close to that on 91 on the stock turbo. Even on E40-50 with a catless DP, upgraded HPFP and tune, you'll be maxed out around 480 wheel. You might hit your goal on an upgraded hybrid (Pure 800 or DAW), HPFP, catless DP and tune on 91, but these motors need octane to make big power. I suppose everyone's idea of what's convenient is subjective, but I wish I had E as close as you do.

Agree with everything you said although he technically didn't say an upgraded turbo was out of the equation

I'm also around half an hour away from the nearest E85 pump and usually when I fill up the car I also fill up a bunch of jerrycans and then stock them home in my garage so I'm set for a few weeks. I'm used to it, it's not inconvenient to me and E85 is about half the price here than 93 oct pump gas, plus as you say the B58 really loves E. E85 on the B58 is just relatively cheap power with a proper tune. Even MHD and BM3 OTS E-mix maps make the car significantly faster than on the pump tunes, definitely compared to 91oct tunes.

Also I've definitely seen around and even over 500whp with upgraded hpfp and custom tune on an E50 mix on B58 gen1. You are pushing the stock turbo close to 100% WGDC then though, so probably not the most advisable, lol.

Hiflyer731 · 04-10-2024, 06:58 PM

I knew a turbo upgrade was likely. I'm trying to decide if I should upgrade the motor or the car.😂

04-09-2024, 02:26 PM	#1
Hiflyer731 Private 24 Rep 86 Posts Drives: 2016 340i Join Date: Dec 2018 Location: Southern California iTrader: (0)	500 whp on ACN 91 Is this a resonable goal and what would get me there? It's a gen 1 B58.
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04-09-2024, 09:57 PM	#2
G.Newt Major 810 Rep 1,456 Posts Drives: CT4-V Blackwing 6MT Join Date: Feb 2017 Location: CO -> TX iTrader: (0)	Do you not have E85 access near you? __________________ 2022 CT4-V Blackwing 6-speed SOLD: 2016 340i xDrive 6-speed DAW v2.5 turbo E40 \| Dorch S2 \| VRSF DP \| MST intake \| AWE catback \| 335is clutch \| CSF heat exchanger \| RK Autowerks intake manifold \| Orange M Perf Brake Kit \| KW Street Comfort coilovers \| GTS taillights V2
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04-10-2024, 05:12 AM	#4
B58togo Major 809 Rep 1,372 Posts Drives: M240i Join Date: Feb 2017 Location: NY iTrader: (0)	You're not going to get anywhere close to that on 91 on the stock turbo. Even on E40-50 with a catless DP, upgraded HPFP and tune, you'll be maxed out around 480 wheel. You might hit your goal on an upgraded hybrid (Pure 800 or DAW), HPFP, catless DP and tune on 91, but these motors need octane to make big power. I suppose everyone's idea of what's convenient is subjective, but I wish I had E as close as you do. __________________ 2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
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04-10-2024, 06:58 PM	#6
Hiflyer731 Private 24 Rep 86 Posts Drives: 2016 340i Join Date: Dec 2018 Location: Southern California iTrader: (0)	I knew a turbo upgrade was likely. I'm trying to decide if I should upgrade the motor or the car.😂
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