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Finally! Another 2018 5.0 1/4 mile time. (Crew Cab)

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Old 03-23-2018, 11:49 AM
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Default Finally! Another 2018 5.0 1/4 mile time. (Crew Cab)
Seen this on Facebook. A bone stock 2018 Crew cab 2wd 5.0. Ran 13.82/102 on 87 octane. Then let the truck cool a bit and added some E85 (mix) ran 13.68/103. Not bad for a limo..... https://www.facebook.com/photo.php?fbid=1772347639452900&set=gm.81297117891 2088&type=3&theater
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Old 03-23-2018, 12:24 PM
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I'm curious how he added E85 and immediately got the ECU to recalibrate without driving the vehicle. The manual states that the ECU recalibrates only if you fill the tank over half way, and then drive for at least 5 miles.
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Old 03-23-2018, 12:24 PM
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Must have Facebook account to login to view. Guess that leaves me out.


Last edited by Brand; 03-23-2018 at 03:23 PM. Reason: Originally said watch video , changed to view.
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Old 03-23-2018, 12:28 PM
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Originally Posted by WXman
I'm curious how he added E85 and immediately got the ECU to recalibrate without driving the vehicle. The manual states that the ECU recalibrates only if you fill the tank over half way, and then drive for at least 5 miles.
Im guessing it was the cooling off time that made it run a tiny bit faster.
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Old 03-23-2018, 12:30 PM
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Originally Posted by WXman
I'm curious how he added E85 and immediately got the ECU to recalibrate without driving the vehicle. The manual states that the ECU recalibrates only if you fill the tank over half way, and then drive for at least 5 miles.
Quite possible to drive to the gas station, and it adapted to the new mix on the drive back.
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Old 03-23-2018, 12:30 PM
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Originally Posted by Brand
Must have Facebook account to login to watch video. Guess that leaves me out.
I did not see a vid in that thread
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Old 03-23-2018, 12:37 PM
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Originally Posted by 2015rubyFX4
I did not see a vid in that thread
That's because there is no video. There are time slip pics though.
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Old 03-23-2018, 03:29 PM
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So if a crew cab 5.0 runs 13.8, what would a regular cab run at 400 lb less weight?
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Old 03-23-2018, 04:38 PM
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Originally Posted by engineermike
So if a crew cab 5.0 runs 13.8, what would a regular cab run at 400 lb less weight?
Been posted here before. Bone stock 18 5.0 RCSB ran 13.23.
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Old 03-23-2018, 04:59 PM
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I know. I was teasing.
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