Quote:
Originally Posted by rd.m340x
Would I need to modify to run E85 on the car? are Map4 and 6 ready to go or need to do adjustments depending if running ethanol or not?
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To run pure E85, yes you'd need to modify it. To run an E85 mixture less than say 50%, no you don't need to modify, just need the JB4. Put in 5 gal E85, then 10.6 gal of 93 oct (if tank is empty, otherwise just fill the rest with 93) gives you E35 which is perfect for map 4 or 6. Here's a quote from Terry at BMS over on N54tech regarding the version 15 firmware update:
"Revised map guide, map4 is now absolute 20psi map and map5 absolute 22psi map, especially useful for Supra/M340i applications on E85 mixtures"
I can attest to its... usefulness. I plan to do some dragy runs this weekend to see what my times look like. It's a monster off the line with xDrive.