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    • The M156/M159 loves octane - E85 ethanol versus 93 octane M156 W204 C63 AMG dyno tuning results

      These results are courtesy of BrenTuning. There are two lines on the dynograph below, the dotted one for 93 octane and the solid line shows the same car on E85 ethanol. Both fuels were dyno tuned on a Dynapack hub dyno (attaches to the wheels). What is important to pay attention to here is not the peak figures but the delta. E85 is clearly allowing more timing throughout the entire rev range making substantial gains through the whole curve.

      It would be interesting to see how the E85 results compare to say MS109 which is an unleaded race fuel. The M156/M159 being port-injected and naturally aspirated likely will not see quite the same gains with ethanol as a direct injected motor (due to the cooling effect of direct injection) but it goes to show that Ethanol works well with the M156 AMG motors.

      Now if only someone would give E85 a shot with a supercharged setup...


      This article was originally published in forum thread: The M156/M159 loves octane - E85 ethanol versus 93 octane M156 W204 C63 AMG dyno tuning results started by Sticky View original post
      Comments 39 Comments
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, close. No, I don't support Shift Sector. I will be doing my own events.
        Have a date or any details pinned down? Save me a spot. January would be nice, give me an excuse to get out of the cold Chicago winter.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Have a date or any details pinned down? Save me a spot. January would be nice, give me an excuse to get out of the cold Chicago winter.
        I will save spots for all the regular people and not like I would exclude you anyway. No date pinned down as I'm trying to tie it into when I launch 60-130.com and have a few other surprises in store. Probably around the time you said.
      1. zhs335's Avatar
        zhs335 -
        Been using ethanol for a couple of months now and have to say the car loves it. Just curious to know what kinda ratios you guys are using? Oh and I'm NA btw...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by zhs335 Click here to enlarge
        Been using ethanol for a couple of months now and have to say the car loves it. Just curious to know what kinda ratios you guys are using? Oh and I'm NA btw...
        What mods do you have?
      1. zhs335's Avatar
        zhs335 -
        For the moment tune,headers,full exhaust,evosport pulley and drop in filters... Would like to do intake spacers,meth and LSD soon
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by zhs335 Click here to enlarge
        For the moment tune,headers,full exhaust,evosport pulley and drop in filters... Would like to do intake spacers,meth and LSD soon
        What tune and is it tuned for E85?
      1. zhs335's Avatar
        zhs335 -
        It's a local tuning company Click here to enlarge Tried out eth and was really impressed with the way the car felt. To be honest didn't expect much. As soon as I have some time would like to go back to the shop and play a bit with the tune...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by zhs335 Click here to enlarge
        It's a local tuning company Click here to enlarge Tried out eth and was really impressed with the way the car felt. To be honest didn't expect much. As soon as I have some time would like to go back to the shop and play a bit with the tune...
        No before/after dynos?
      1. zhs335's Avatar
        zhs335 -
        No dyno figures as yet with the eth. Will get some done and post up soon. Butt dyno says atleast 20-30 hp Click here to enlarge...
      1. murphc63's Avatar
        murphc63 -
        Car is a beast
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by murchc63 Click here to enlarge
        Car is a beast
        Absolutely. Are you referring to it in general or is it your car?
      1. murphc63's Avatar
        murphc63 -
        It's my car
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by murchc63 Click here to enlarge
        It's my car
        Makes sense. Well, welcome.
      1. RNS-11Z's Avatar
        RNS-11Z -
        So do any of you run ethanol mixed fuel with your pump tunes? On the c63? And how do you work out the ratio? Say if I was to blend pump93 and e85?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by RNS-11Z Click here to enlarge
        So do any of you run ethanol mixed fuel with your pump tunes? On the c63? And how do you work out the ratio? Say if I was to blend pump93 and e85?
        Why run E85 with a pump tune?
      1. ezec63's Avatar
        ezec63 -
        Click here to enlarge Originally Posted by murchc63 Click here to enlarge
        It's my car
        Whered ya get it tuned I have a c63 and some extra power would be sweeeet. Do I have to be local?
      1. Sticky's Avatar
        Sticky -
        @murchc63
      1. murphc63's Avatar
        murphc63 -
        Brentuning.com located in Massachusetts
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by murchc63 Click here to enlarge
        Brentuning.com located in Massachusetts
        Thanks. Bren is good people.