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Originally Posted by m5james
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Originally Posted by Myaddiction
I'm sure he was just doing the covering his ass thing, which is the smart move since he has nothing to gain from you running it and you'd have to mix it which most people don't want to mess with.
We can't run straight E85 only because our software can't support it and nobody is going to invest the time in changing that.
Hardware wise there is nothing preventing the use of E85. There's a lot of myths and lack of knowledge about it. This is my 3rd BMW I've used it in (335i and M4) and 5th vehicle. You just need to know what you're doing. It's worth a lot of power but isn't just pump and go.
If it's readily available put 5 gallons in the next time you fill up and you can tell the difference due the more advanced timing unless you're running 93. The difference isn't that large then but there are still gains. I'm still data logging and working with the tune to find out how much E85 I can run and how much power it's worth, but know that E30 is a safe mix that makes power in our trucks.
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I'm running an Android tablet and the Torque app to monitor things like boost levels, AFR (commanded and actual), etc and I wonder how accurate they are. What are you using to data log since we can't use things like the JB4 and do you have any updates to your own logs, mixtures, etc? |
BMWlogger is the only software I've found that can log from our ECU (MSD 8.5). It does not correctly log boost though. After talking to BMWlogger they say the factory release notes say our ECU and the ECU (MSD 8.0)for the N63 motors have the same signals. Apparently most are the same but boost is not one of them. The AWRON dash gauge is the only one I could find that can actually provide the correct boost. It's made in Germany and has some close contacts with BMW so I guess that is why they can seem to get it right. All the phone apps and Bavarian Tech software and cable have the same boost problem since they all rely on the same incorrect software notes from the factory.