11-08-2016, 02:40 PM | #1 |
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DYN-O-MITE Time !
So I woke up this pass Saturday morning decided to drive the m2 stop by Costco gas station filled up the tank and decided to visit European Auto Source to do a basic dyno. (Dynojet)
Here are the results on 91 octane (shitty gas from Costco ) we did three runs : With the same result: 322-329 and the last three runs we decided to add 1 gallon of E85 octane on 3/4 on 91oct Result: 340-352 Waiting list : Software Downpipes
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11-08-2016, 03:02 PM | #2 | |
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I guess that is not bad for 91 octane. My car did 350 whp + 417 ft-lbs on 93 octane on a dynojet as well...
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11-08-2016, 03:44 PM | #3 |
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I need the ManaJuana for more hp ..Lol
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11-08-2016, 05:17 PM | #5 | |
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Those base numbers look good OP.. Has anyone tried any Sunoco 100 octane?
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11-08-2016, 09:27 PM | #7 |
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Costco is by far my fav gas for the past solid year.
Its the most consistent station to station gas brand I've used in my X3 and X4 M40i. Heck, those are solid results for 91 and wow 439wtq with just 1 gallon of e85
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02-05-2017, 05:36 PM | #9 |
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They run lean from factory but an extra gallon of E85 won't make it much leaner that one should worry about.
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02-05-2017, 06:47 PM | #10 |
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02-05-2017, 11:09 PM | #11 | |
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The m2 actually runs a bit rich compared to other n55's. Normal is 12:5:1, the m2's stock tune dips into the 11's. |
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02-06-2017, 06:41 AM | #12 |
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Most DI motors can be tuned safely to run mid 12's for AFR.
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02-06-2017, 08:29 AM | #13 |
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Thanks! Did you have any tunes or mods when you took that datalog?
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02-06-2017, 10:41 AM | #14 | |
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Honestly I'm glad the m2 has thicker AFR's. A lot of times people running this setup on the m235i have scary lean AFR's considering the torque curve hits so hard, so quickly. Does anyone on here have experience with the ECU psi going above the DME boost target? |
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02-06-2017, 10:43 AM | #15 |
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02-06-2017, 11:27 AM | #16 | |
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Thanks! |
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02-06-2017, 11:29 AM | #17 | ||
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The ECU psi could be causing throttle closures. |
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02-06-2017, 11:44 AM | #18 | |
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How much higher PSI are you seeing? What's stock boost set at? |
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02-06-2017, 12:35 PM | #19 | ||
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02-06-2017, 12:41 PM | #20 | |
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So under throttle what does the car use if it's not using the MAF? |
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02-06-2017, 12:58 PM | #21 | ||
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Actually the DME BT and ECU psi aren't as far off as I thought. JB4 is probably just learning. The factory DME targets up to 14-15.5psi I believe. Hangs in the 11-12 range most of the time |
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02-06-2017, 01:09 PM | #22 | |
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Also, how's the induction sound with the burger unit? Thanks! |
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