Which LPFP for ethanol/High octane?

SlowE92 · 10-16-2023, 01:06 PM

I live in Salt Lake City and the only gasoline we have here is 91 octane. I've had to buy 54 gallon drums of E85. I've seen mixed reviews of people saying to get a stage 2 LPFP and others saying that a stage 1 Fuel it will suffice. I want to run E50, would a stage 1 lpfp suffice? Also want to get a JB4 for Map 7, can I run map 7 on the stock lpfp? We have a 100 octane pump about 20 minutes from here. Thank you everyone.

Sgop335 · 10-16-2023, 07:49 PM

E50 would need about 25% more compared to gasoline. It also depends on how much boost one wants to run. If a gasoline 18psi map can run on stock pump, one can do the math based on that.
For 100 octane, depends on its stoicho...

10-16-2023, 01:06 PM	#1
SlowE92 First Lieutenant 112 Rep 347 Posts Drives: E92 2007 335i, E60 2008 535xi Join Date: Sep 2023 Location: Salt Lake iTrader: (0)	Which LPFP for ethanol/High octane? I live in Salt Lake City and the only gasoline we have here is 91 octane. I've had to buy 54 gallon drums of E85. I've seen mixed reviews of people saying to get a stage 2 LPFP and others saying that a stage 1 Fuel it will suffice. I want to run E50, would a stage 1 lpfp suffice? Also want to get a JB4 for Map 7, can I run map 7 on the stock lpfp? We have a 100 octane pump about 20 minutes from here. Thank you everyone. __________________ 2007 E92 335i - MHD, Turbo Technics 19T's 2008 E60 535XI - JB4 2010 E92 335i - JB4, Borg Warner EFR 8374
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10-16-2023, 07:49 PM	#2
Sgop335 Colonel 648 Rep 2,015 Posts Drives: 07 335i e92, 08 535i Join Date: Jun 2014 Location: MD iTrader: (1)	E50 would need about 25% more compared to gasoline. It also depends on how much boost one wants to run. If a gasoline 18psi map can run on stock pump, one can do the math based on that. For 100 octane, depends on its stoicho... __________________ 335i e92 TPC 19Ts
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