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JB4 question... Map 7 fbo w/e85?
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05-02-2014, 10:22 AM | #1 |
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JB4 question... Map 7 fbo w/e85?
Just wondering if a 30% e85 mix with 91 would be enough to run map 7, or should I just leave it on map 2? Not really a fan of autotune maps.
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05-02-2014, 10:26 AM | #2 |
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no way. i would go a 60/40 mix at least or 70/30 would be better. depending on if you mix with 91/93.
terry recommends an inline pump also if you're mixing e85 for map 7. If you have high e85 content, I have a feeling map 5 may suit your car better than map 2
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12.0 @ 117 Last edited by idrift4wd; 05-02-2014 at 10:35 AM.. |
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05-02-2014, 10:34 AM | #3 |
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Map 5.
If you are not a fan of the autotune, make sure you are using it correctly. It needs 3 WOT pulls at a minimum to even be close to full potential. The dme keeps learning the whole time so will gradually keep getting fast. |
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05-02-2014, 11:01 AM | #4 |
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I've just seen autotune lean out and kill too many motors. I don't really want to run high e85 mixes or install an inline for now, so I'll just stick with map 2 and 91 unless I'm gonna dyno etc
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05-02-2014, 12:56 PM | #6 |
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05-02-2014, 12:59 PM | #7 |
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for map 7, you would need e60. for e60, you would need some sort of lpfp upgrade (450 lph drop in, 255 lph in line pump, ect).
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Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold) |
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05-02-2014, 01:24 PM | #8 |
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05-02-2014, 01:42 PM | #9 |
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I'm not really at liberty to tall about other people's issues, but I've seen seemingly strong cars put holes in the block, so I'm just erring on the side of caution. Eventually I'll probably have a custom tune made from my logs
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05-02-2014, 02:19 PM | #11 |
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11' m57 335d 165k Miles - JR 2, ATM Full Exhaust & Intake, Wagner FMIC, AAR Boost Pipe, AAR Swirl Delete, AAR EGR Delete
08' n54 135i FBO E85 - SOLD |
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05-02-2014, 02:48 PM | #12 |
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That's some false information right there. Autotune is very conservative. People putting holes in the block are the ones running way too much timing and turning off knock detection.
Please post some actual data, images, or refer the people who lost their motors to autotune here so we can hear more. I'm really curious...
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2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"| 149.7mph NFZ AZ 1/2mi
1992|Pontiac Firebird|Mild 355ci|T56| -I will look on your treasures, gypsy. Is this understood?- |
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05-02-2014, 03:29 PM | #13 | |
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Quote:
I know of a few blown motor but most of them were not your typical full bolt on car and most cases were upgraded turbo's with methanol injection. The culprit to the blown motors appeared to rely heavily on the poor distribution of methanol among other reasons. |
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05-06-2014, 10:21 AM | #15 |
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Like I said, I've just had personal friends with bad experiences. Of course there are many variables, and I'm not trying to tell anybody else what to do; just saying I'd personally prefer a permanently tuned map than one with changing parameters.
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05-06-2014, 11:25 AM | #16 | |
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I like auto-tune. It lowers boost if you are running lower octane. It actually makes it safer. Lets say you don't get the octane you normally get and are running a fixed map. Sounds like potential knock city. Auto-tune, just lowers boost and you are fine still. Sorry, but you seem to be posting just unfounded opinions and not many of us care to hear it.
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2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"| 149.7mph NFZ AZ 1/2mi
1992|Pontiac Firebird|Mild 355ci|T56| -I will look on your treasures, gypsy. Is this understood?- |
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05-06-2014, 11:30 AM | #17 | |
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Knock city? Only if your sensors aren't working, but if you're putting in low octane gas I don't wanna know wtf else you're doing to your car. And if you're doing 3 hard pulls on shit gas in 3rd to calibrate it instead of driving the car as easily as possible, or changing to a low boost map, etc etc... you probably shouldn't own anything nicer than a Civic. like I said, I really don't care if you hear it or not. close the window, walk away. I'm asking a different question, everybody else is getting hung up on trying to prove autotune to me. |
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05-06-2014, 12:29 PM | #18 | |
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I wouldn't worry about what I own. You come off as very defensive and ignorant when people ask for simple proof. Have fun with your car.
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2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"| 149.7mph NFZ AZ 1/2mi
1992|Pontiac Firebird|Mild 355ci|T56| -I will look on your treasures, gypsy. Is this understood?- |
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05-06-2014, 12:32 PM | #19 | |
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and thanks for more map 5 info, I really appreciate all the education |
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05-06-2014, 12:42 PM | #20 | |
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Map 7 requires 100oct minimum. Your inital proposed mixture of 30% is 95.2oct. Given you measure your E85 and its actually true E85. Most I measure are 80-82. So no you shouldn't run map 7 on that. 10gal of E85 would yield 99.5oct. Here you go, http://www.intercepteft.com/calc.html for future use.
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2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"| 149.7mph NFZ AZ 1/2mi
1992|Pontiac Firebird|Mild 355ci|T56| -I will look on your treasures, gypsy. Is this understood?- |
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05-06-2014, 12:45 PM | #21 |
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thanks, that's a useful calculator
I assume e85 true content is based on freshness, water accumulation over time etc? Or do some refineries ship "e85" with a lower true content from the factory? |
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05-06-2014, 12:50 PM | #22 | |
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I would consider an inline. I will be putting one in this month. It's cheap insurance as some pumps even struggle at E30 blends. Also it's an easy install.
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2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"| 149.7mph NFZ AZ 1/2mi
1992|Pontiac Firebird|Mild 355ci|T56| -I will look on your treasures, gypsy. Is this understood?- |
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