Drivetrain (Cooper S) MINI Cooper S (R56) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain E85 mix with 91 octane

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Old Oct 21, 2013 | 10:22 PM
  #26  
markjenn's Avatar
markjenn
5th Gear
Joined: Oct 2002
Posts: 779
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Originally Posted by Azminispeedin
Not you character, it's you lack of knowledge of the topic. It's misleading to those who may not have the knowledge of the topic. You default to mini's recomdation of less than 10%.. Yes the owners manual does say this, as Terry and others have stated many times, BMW and mini as well as every manufacture for the past decade have supported eth. I personally have been using a 20% + mix for a little under a year. Instead of spreading info that has zero merit, take a minute and read on the topic. There is a ton of info out there on E85 with DI turbo engines. Suburu's, speed3, 335, as well as Corvettes, turbo Porsches have been running E85 in the last decade. But hey don't take my word, YouTube 335 E85. I highly recommend running a 20% mix in the summer heat on higher boost to guarentee zero knock counts or be the guy that cracks or melts a piston. Take time and learn.
I have a mechanical engineering degree and have worked on engines my whole life. Stop the lecture.

- Mark
 
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Old Oct 22, 2013 | 10:56 AM
  #27  
Terry @ BMS's Avatar
Terry @ BMS
Former Vendor
Joined: Sep 2007
Posts: 519
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From: terry@burgertuning.com
Originally Posted by markjenn
This is correct, but I doubt that little gizmo that guy was using would be able to compensate to this degree and keep anything approaching reasonable A/F ratios.

- Mark
The DME actually can compensate up to 35% fuel volume (at any mapped air/fuel ratio) on its own using a long term fuel trim. No gizmo required! When you start to get up to more than a small mixture then a fuel mass calculation must be changed to prevent those fuel trims from maxing out and throwing a fault code.

As far as long term ethanol testing on the MINI platform I've not done any. But, on the BMW platform it's proven quite robust even running straight E85 for years at a time.
 
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Old Oct 22, 2013 | 01:07 PM
  #28  
Azminispeedin's Avatar
Azminispeedin
3rd Gear
Joined: Jul 2012
Posts: 154
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Announcing u have a mechanical engineering degree does not help..A chemical engineering degree may help the study.. There are plenty of bright minds on this forum, u sir have some catching up to do.
 
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