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BMW 3-Series (E90 E92) Forum
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Any Flex Fuel news?
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07-26-2013, 12:02 PM | #89 |
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So you released a product a year ago and it still isn't working correctly and you are still needing local testers? I am not bashing you just trying to understand the facts. I am interested in the flex fuel option but not if it isn't working 100% and hasn't been on a few cars for a few months...
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07-26-2013, 01:22 PM | #90 | ||
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The Stock DME in both 335 and m3 are target based closed loop which means that your DME always asks for the correct amount of fuel. Flex fuel kit just adjusts the aggressiveness of the tune based on the ethanol content. (with a maximum 34% correction without a tune adjustment) If the JB4 can do this just as well then you wont need the $600 Procede and the $800 flex fuel kit. I know nothing about the Jb4, only terry can comment on this. So no matter what you do you can run 100% Ethenol and the computer will adjust for it; however, it wont increase timing so the benefit of running e85 is smaller but still better than 91 especially in CA. You still need a bigger fuel pump for full e85 but you can run e30 and possibly e50 (depending on your lpfp strength) and have nothing to worry about. Benefits 1) fuel burns cooler 2) On high temp days or if your car runs hot your car will not retard timing 3) Its cheaper per gallon 4) It reduces air pollution (if you like that feature) 5) You can run more boost with higher compression like our engines are since its 10:1 6) Octane rating will be much higher than you can get with pump gas negatives 1) less mpg 2) requires a bigger fuel pump/s 3) can deteriorate fuel injectors (old ones, new ones seem to be much better) 4) can deteriorate o-rings and fuel related items over time. 5) if it sits in your tank for to long you can get alot of condensation. Its up to you on what you choose but for me the benefits outweigh the issues. Fixing injectors, o-rings, and thinks like that over time are not a big deal considering your basically running a (race) gas all the time. The flex fuel kit only gives you more timing to increase the hp. You can get a custom Dyno tune at e50, e70, and e85 and run your timing according to your ethanol content. There are digital gauges or test strips you can buy to find out. You can also edit your own tune and do custom fuel scalers and timing tables. If you want a (set it, and forget it) type of setup, then get the procede/flex fuel kit. Last edited by buster84; 07-30-2013 at 12:45 AM.. |
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07-26-2013, 01:43 PM | #91 |
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07-26-2013, 02:21 PM | #92 | |
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That makes me wonder how much timing it can adjust for. If the computer is as good as it seems I don't see why you cant just tune it for e85 and let the computer remove timing as it see's fit. |
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07-26-2013, 02:28 PM | #93 |
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FWIW,
I tend to read a lot more than post... see post numbers. Have had PROcede since '09 no problems Got Flex Fuel Kit about 3 weeks ago, slight snag during install (wiring issue) other than that NO PROBLEMS... runs great. Fill up on whatever fuel is available and just haul ass.... I have not had any problems with the firmware/maps posted on the Vishnu site. My $0.02 not trying to get in the "Vendor War"...I post to genuinely ask, what is/are the firmware, systems problems you guys are speaking of?
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07-26-2013, 02:48 PM | #94 | |
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My cold starts are pretty much just as nice as pump gas now on straight e85, and I also do not get the under boost code at partial throttle anymore.
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07-26-2013, 08:23 PM | #96 | |
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07-29-2013, 01:11 AM | #97 |
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I'm currently still waiting on the new Flex Fuel firmware. I will try to keep this thread updated with an intermittent "pip" of sorts, much like this post. Nothing new, just updating saying that things remain the same.
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07-29-2013, 01:19 AM | #98 |
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Just a reminder: the new firmware requires a new DME flash. We will create an XDF patch for the new DME flash and post it up with the new firmware. But you will either need to ship the dme to us, use an OpenFlash tablet, or visit a shop that has dme flashing capabilities to upload the new file on to your dme.
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07-29-2013, 01:55 AM | #99 | |
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07-29-2013, 02:00 AM | #100 |
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The XDF file will modify your existing ROM in Tuner Pro rom editing software. It's unlikely the shop you go to, unless they use OpenFlash, will do this for you. In that case, you can have them read your DME, email me the rom file, and I'll send back a modified version of the ROM suitable for the new flexfuel firmware. I can't promise that this can be done while you wait at the shop but I'll do my best to accommodate.
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07-29-2013, 02:42 AM | #101 | |
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07-29-2013, 07:11 AM | #102 |
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I sold my car so anyone looking for a rev3/flex fuel kit I am selling mine http://www.e90post.com/forums/showthread.php?t=870283
I loved having the kit, once you have the kit installed you can really see how much ethanol you are really getting all the time and not just guessing. |
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07-30-2013, 05:28 AM | #103 |
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@shiv, for those of us running the old bad dme flash for the flex fuel; if we send in our dme to get reflashed is it free of charge? Or do we all have to pay you again?
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07-30-2013, 08:35 AM | #104 |
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I'm hoping that I can just get the XDF files so I can do the flashing my own time with someone who has an open flash tablet. I don't feel like buying another product for a bug fix.
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07-30-2013, 10:41 AM | #105 |
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After reading this thread.. this product seems like a pretty big bust. You must buy other supporting products and have your DME reflashed... and people have been waiting over a year for support?!
Sounds like an all too familiar shop starts pumping out products, and does not have the available staff/measures to support them. I understand running lean as far as staff goes, but to put one product (that you have already sold) on the back burner to start another is just bad business. Too bad, because I was really liking the sound of the Opensource Tablet... but not if the customer service is non existent. |
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07-30-2013, 10:59 AM | #106 |
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Sorry if this is off topic....but I hear a lot of you talking about 91 and 93 octane.
Same as London... Now in Lebanon, we have 95 or 98 octane (unleaded of course). Why and what is the difference ESP if I instal my JB4 soon. we only have 95 or 98. Thanks BB
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07-30-2013, 11:13 AM | #107 | |
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07-30-2013, 11:14 AM | #108 | ||
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RON = Research Octane number MON = Motor Octane Number AKI = Anti-Knock Index USA AKI 91 = (RON 95 + MON 86)/2 Please make your own thread if you have further questions. Quote:
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07-30-2013, 11:49 AM | #110 | |
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