05-22-2019, 10:13 PM | #1 |
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BM3 Crap 93 log vs Shell 93 and octane+ log
I did a log last night after installing injen intake, ER catless DP, CSF Intercooler and BM3 stg2 93 oct. The car felt like it was running out of steam and the log shows timing being pulled like crazy especially in 4th with a knock event when i went full throttle and started the log. The car had about half a tank of 93 octane from a mobil station.
http://www.bootmod3.net/log?id=5ce4ae72c090c67dfdca5e7b Tonight I filled up from half a tank of crap gas with shell 93 and dumped 1quart of VP octane booster in and holy crap! take a look at the difference. Both runs are on the same road and tonights run i ran through 4th into 5th. Also note the CSF intercooler keeping the IAT's down after driving for 30minutes to get to the road to do the logs. http://www.bootmod3.net/log?id=5ce600eaae729b19d2c57917 |
05-23-2019, 02:03 AM | #2 |
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I don't believe the Shell 93 is any different from the Mobil. It's the VP octane booster that made the difference.
Quality octane booster is known to be good, but it turns the insides of your engine orange. Some say there are no long term side negative effects, others are concerned. I'm considering WMI instead as an octane booster.
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2018 ///M2 LCI, LBB, 6MT...
Current Performance Mods: CSF FMIC, ER CP, Fabspeed Cat, Aquamist WMI, GFB DV+, NGK 97506, BM3 (Stage 2 93 OTS), CDV delete, UCP, M2C/M3/M4 Strut Brace, M3/M4 Reinforcement Rings |
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05-23-2019, 06:58 AM | #3 |
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Not so much saying that shell is different than mobil station but that the shell station actually has quality 93 octane where as the other stations around me may or may not be mixing the gas or only have 2 tanks in the ground..., next test is to see if the car pulls nasty timing with shell 93 only.
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05-23-2019, 07:59 AM | #4 | |
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05-23-2019, 09:11 AM | #6 |
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Not to thread jack, but to add another data point, what do you guys think about these logs?
Stg 2 93 5.7 log with octane booster. Octane should be equivalent to US 98: http://www.bootmod3.net/log?id=5cbe507cae729b40cb5a8b25 I didn’t get to push as hard as usual in the log above, but the car felt better than when I logged 5.7 with just 93 octane: http://www.bootmod3.net/log?id=5cb90b36ae729b44f4273e3b Do you guys see any differences, or just placebo? |
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05-23-2019, 09:41 AM | #7 | |
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I rolled back to Stage 2 91 for now. |
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05-23-2019, 09:53 AM | #8 | |
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05-23-2019, 10:28 AM | #9 |
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05-23-2019, 01:44 PM | #10 |
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I bought a bottle of Lucas Octane Booster today with the purpose of taking a before/after log. However it started pouring rain out right before taking the first log, so I had to quit before adding booster. These two logs are with Turkey Hill 93 in Pennsylvania. v5.7 93 Oct Stage 2 AGG Tune with me going wayyy faster than I should in the rain.
I'm by no means and expert, but it looks like it's pulling timing and it wasn't even that hot out. 65F and rain should keep things real cool. Looks like it's gonna rain everyday until next Wednesday, so I can't do further testing until then. DCT in Manual Mode Sport+ MPE w/ valves open Eventuri Intake Wagner Evo 2 Comp Stock Downpipe http://www.bootmod3.net/log?id=5ce6df7ac090c61a0ab45556 http://www.bootmod3.net/log?id=5ce6e1ffc090c61a0ab45558 |
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05-23-2019, 01:51 PM | #11 | |
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05-23-2019, 02:07 PM | #12 | |
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05-23-2019, 02:22 PM | #13 | |
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Sport+.......did you experience any wheel slip? With it raining outside, and traction still on, wheel slip can be mistaken for timing drops. This is why we do pulls with traction full off, in a safe area of course...but always at the drivers discretion. |
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05-23-2019, 03:07 PM | #14 |
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I was thinking about that before I made the pull, so I did a test pull beforehand in 3rd gear at 3500rpm and the traction light didn't turn on, so I continued. I didn't see the traction light come on in my pulls either. But you raised a good point and I'll do future pulls with DSC off.
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05-24-2019, 01:37 AM | #15 | |
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Best to do so next time. Even the slightest lift can cause timing to shoot up to the 30s+. Just try and keep that foot planted. Foot down at roughly 2500RPM......look for those repeated 3 degree timing drops above 4-4.5k RPM. Could be bad plugs/ bad fuel/ tune too aggressive/ high AITs/ etc. |
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