Thread: e85 question
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      11-09-2012, 10:38 PM   #9
spool twice
Rainbow Racer
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Drives: S65B40
Join Date: Sep 2010
Location: Sarasota, FL

iTrader: (7)

FACT: most, if not all flex-fueled vehicles built after 2005 no longer use a flex-fuel sensor unit

FACT: Vishnu's system is the only dummy-proof system

FACT: It's not hard to measure ethanol content of gasoline

FACT: It's not hard to figure out how to run at least 30% ethanol content to clean up ignition timing up to stock timing curves.

FACT: all tunes now have some form of ignition control (whether optional or standard) to advance and retard timing.

FACT: COBB, BMS, VISHNU all have some form of E85 maps. If you're in doubt of running E85, just do it I've been running e50-e60 since January of this year and I can't go back to running 93 octane, It's addicting!

Take it for what it's worth, I can name a large number of vehicle's that use Lambda feedback to calculate the amount of ethanol content.
'14 S5 DSG
[GIAC ECU/TCU|bolt-ons|10.976@124.86mph]

'09 E90 M3 DCT (sold)
[Evolve ECU/TCU|MS Pullies|K&N drop-in|Test Pipes]

Last edited by spool twice; 11-09-2012 at 10:45 PM.