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      02-04-2020, 02:46 PM   #10
BMWDriverX
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Drives: G12 750i X-Drive
Join Date: Jul 2017
Location: CA

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Quote:
Originally Posted by gpdriver17 View Post
If you have easy access to E85, I would recommend just running E30 on Map 2. That worked well for me.

As far as negatives about the BMS kit. I noticed the left/right bank boost is not even, because you're replacing the tube that's there to equalized the pressure. Apparently this isn't a big deal because the F10's didn't even have that tube, but I'd still prefer it to be even. Also there's not any good way to mount the tank and motor. It's a PITA to get in where they show it and not way to truly secure it. I didn't notice any gains at all in terms of speed. If you don't have access to 93 or E85, its probably worth doing. If I had to do it again I'd pay up though and get a 2 gallon tank installed in the trunk.
Is the boost even with the OEM tube on there? Also when you say E30, how much E85 are you adding to 91oct?
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