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      05-21-2021, 06:12 PM   #1
sly1types
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I have a F80Paul E85 tune that is great. I also have been running the OTS stg 2 custom rom switchable tune and I like the flex option, there isn't a big difference between the map slots as they all target about 23psi with E50+.

I'm thinking of getting a tune from Paul like this:

Slot1 road course tune 91oct-E85 with a torque limit of maybe 425-450? With pedal/throttle mapping for the road course.

Slot2 road course tune with a little more boost and maybe 500tq limit?

Slot3 full kill tune no torque limits and all the boost?

Or maybe skip slot 2 depending on what Paul says.

What are your guys thoughts? Or experience with these custom rom tunes?
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      05-27-2021, 07:48 PM   #2
sly1types
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Well i ordered a F80Paul custom Rom flex road course map and then second slot that is a spicier version that is meant for the street. So we will see how they are pretty soon.
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      05-27-2021, 09:09 PM   #3
TopJimmy
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CustomROM is so expensive and the only real difference is flex fuel capability. For a hot E85 race tune I wouldn't need AntiLag (just smoke tires) and my fuel quality is known so Flex doesn't help me either. I'll save that CustomROM money and take a separate Standard Map. It's easy enough to switch maps with your phone, and we know how fast the old flashes load in.
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      06-08-2021, 12:52 PM   #4
sly1types
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I ended up getting a custom rom tune from F80 Paul with an extra slot and i'm impressed with it. Its a lot better than the OTS stg 2 flex tune. It pulls harder and makes more boost. I haven't had a lot of full ethanol testing, but i had some E55 in it and i was up to 25-26lbs of boost. Hopefully soon i will get it up to 80% and see where it is and get some dyno time with some varying ethanol ranges.

My tune is setup as slot 1 is a road course tune that is flex and then slot 2 is a street tune that doesn't limit the torque like the road course and runs more boost and timing.

Then if im going to some car events or racing i can reflash to my E80 custom full tilt tune.

I do have the bend calibration flex sensor kit.
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F85 X5M
https://www.instagram.com/fastmacm3/
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