01-05-2022, 07:34 AM | #1 |
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Hey everyone, I'm running full E85 in my N55 M2 LCI in Dallas (do not attempt this on an OEM pump, I have a Dorch Stage 2) and the temps are now dipping below 50 degrees. I just wanted to see if anybody knew how to prime the pumps a little extra so I don't sit here for 5 seconds waiting for the car to crank and catch haha. Thank you!
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01-06-2022, 06:19 AM | #2 | |
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WedgeSalad285.00 |
01-09-2022, 12:02 PM | #3 | |
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E85 below a certain temperature won’t vaporize quick enough and will not allow the car to even start at all. This is around 0F, and as you blend down this threshold increases. Having run E85 blends thru several winters, I’ve found the best general rule of thumb to not experience 5-10sec cold starts for me is to match the Emix to the ambient temp. Meaning E30 for 30F, E40 for 40F, E50 for 50F, and any mix above 60F starts fine. I’m currently working on the new BM3 Stg 2+ E50 beta map with Halim and I have E51 in the tank and the average daytime temps this week are 20-30F, so hopefully I don’t kill my battery trying to start up! It’s also becoming a challenge just to have enough grip even for a 4th gear pull bc we’re likely >550wftlbs and I’m still running 4S’s! I hate to drop $1k on some DWS 06 Plus tires just for the couple months of decent cold weather here to get enough grip, especially since I’ll probably just back down to E30 anyways after helping to dial in this OTS map, simply because of the ethanol cold start issue! Last edited by ZM2; 01-09-2022 at 12:08 PM.. |
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GasBurnlife(landapanda)576.00 |
01-09-2022, 12:05 PM | #4 | ||
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Now I just gotta make sure it's fine after that superknock scare I had … |
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01-20-2022, 06:39 PM | #5 | |
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Drives: 2018 BMW M2
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01-20-2022, 07:19 PM | #6 | ||
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01-21-2022, 04:04 AM | #7 |
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lol you losers are still in the Dallas area
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OG M2 with the OEM M mirror retrofit
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01-21-2022, 07:53 AM | #8 |
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02-08-2022, 01:22 AM | #9 | |
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My M2 is full stock but my Gtr is on flex fuel and in the winter i run lower ethanol mix to help with cold startup. Also i never let the fuel sit above E30. I live in switzerland |
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