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12-21-2007, 09:58 AM | #111 |
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My buddy in college did the same with his Evo VIII-sweet car. In the VW/Audi area no such thing exists though. It gets talked about every once in a while and everyone wishes they could do it but we are stuck with packaged flashes. Beyond that you can made little tweaks, but nothing major. Im guessing that the motronic ECU is just pain in the ass complicated so the "freeware" software like in the Subie crowd just isnt possible. The BMW ECU might turn out to be exactly the same way as the VW/Audi.
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12-21-2007, 10:05 AM | #112 | |
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12-21-2007, 10:12 PM | #113 |
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12-21-2007, 11:34 PM | #114 |
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My wife drives an '05 GLI w/DSG (love that dual clutch system) and I thought about reflashing her car. Problem is, she drives it so slow I don't even think the turbo's get a chance to spool up.
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12-22-2007, 10:22 AM | #115 |
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12-22-2007, 10:05 PM | #117 | |
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BMW's ECU's are ENCRYPTED... Jim Conforti broke the 8bit encryption on the older e46's and was able to control VANOS and other "tuneable" aspect of the ngine. BMW didn't like that.. So since then they have gone to 32bit encryption. Pretty much uncrackable.... So for someone to "flash" a BMW's engine, they must have a license from them. I am sure Hartge, DINAN and Turner all work very closely with BMW and their "tunes" are sanctioned by BMW, less they would'nt issue the license to them. That doesn't mean BMW warranties it, just that they are not hurting the engine and have considerable bench time. All other tunes are piggybacks.. $600 bucks more for a flash seems like a pretty good deal. But then-again... that depends on your situation or need. -Garrett |
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12-22-2007, 10:13 PM | #118 | |
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+10 :headbang: At 1400rpm's the turbos are spooling at a given rate.. due to the rate of exhaust. Unless a "tune" adjust the consumtion of fual/air CONSIDERABLY at such low rpm's... then there will be hardly anything noticeable at such low rpms. I suspect that the huge torque gains of the procede whip you back in your seat onec you at full boost... so the transition from no boost to full is greater. Thus it feels like more lag when your still on the NA part of the N54. |
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12-23-2007, 09:15 AM | #119 |
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12-23-2007, 09:22 AM | #120 |
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Whatever you want to call it, so be it. All I can say is that there was a lag in time (if you not want to call it turbo lag, that's fine), after stomping on the gas of both procede equipped cars that wasn't there on unmodded 335i cars. Accelleration was more instant on the non-modded cars, but stronger on the procede cars (when it came).
Remember, on an autocross course, you are constantly on and off the gas, pretty hard. It was very obvious that "one of these things is not like the other one". :iono: |
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12-23-2007, 11:16 AM | #121 | |
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Im guessing base price from GIAC would be $600 with add ons of Stock, Valet for $50-100 each, a race gas program for $200 more, and the flashloader program switcher for $150. So, you could get away with as little damage as $600 or as much as $1150. Still alot less than even some of the piggybacks. If what i speculate is even close to true... screw Dinan :smile: |
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12-23-2007, 11:30 AM | #122 | |
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I like cobb sw I have in my WRX. Also had APR and Neuspeed sw in my 1.8T a4, had some pinging problems with APR but I will give them some slack since I run 91 CA piss gas and they fixed it with a new map. |
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12-23-2007, 12:51 PM | #123 |
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12-23-2007, 01:06 PM | #124 | |
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Exactly, they arn't even working on a tune right now... their still trying to crack the encryption on it. While Dinan payed the licensing fee and have already spent 6 months with refinning their n54 "tune". PROcede is the next best thing at $600 cheaper. |
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12-23-2007, 03:51 PM | #125 |
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Reference the post to which you ask "why."
1. True words. That means I agree with him. 2. $2,000 is too much for a reflash. That's my opinion. 3. A custom dyno tuned reflash is better than the mail in reflash such as the one on my car. He is right; it is true. Search. That is why. |
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12-23-2007, 04:58 PM | #126 | |
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Yeah, if I was getting a custom map that was designed specifically for my car and the mods I have then I would be willing to pay(not $2k though). But if all they have to offer is an off the shelf, basic, reflash for $2k then forget about it. |
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12-25-2007, 10:35 AM | #127 |
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About performance tuning, I would like to remember that ALPINA (an official BMW tuner), on the last B3 edition with N54 engine has reached 355bhp and 369lb ft @3800-5000rpm, but on Mahle pistons that lowers compression ratio at 9.4:1 (1.1 bar of boost).
With all the due respect to the "independent" tuners, I think taht nobody knows BMW engines better than BMW itselfs and, if they suggests to Alpina such a replacement in order to mantain reliability, maybe that could be the better option also for the "everyday use" customers. P.S. The Alpina B3 is capable of 0-62mph acceleration in 4.9s and a top speed of 180+mph. |
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12-25-2007, 02:35 PM | #128 | |
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Hunh..? (The post in which I ask "why" has your quote in it, thats the reference) Your assumption are based off fantasy... because it is NOT a valid option. (IE it does not exsist). You feel $2k is too much for a flash? My question is... (again) WHY? ... do you feel $2k is too much for a flash of the ECU..? Is it that your personally not interested in it, or; Financially not viable, or; too much trouble, or; etc...? Why..? Because the other option you keep talking about is not and will not be available! (Custom tune, custom flash) So WHY do you feel DINAN's price of $2k is too much..? PROcede is only $1,400 and it's a piggyback. So explain to me your thinking on how $600 is too much? Because logically... thats all we are discussing is the difference in price. -Garrett |
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12-25-2007, 03:14 PM | #129 |
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Garrett,
Why are you acting like this? I have answered your "why" question already. I stand by my opinion regarding the cost of the Dinan reflash, and judging by the responses, the opinion is shared by others. Let it go. -AJ |
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12-25-2007, 03:30 PM | #130 |
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I agree that the 2k from Dinan is worth it. I respect the R&D that goes into tinkering with expensive BMW software.
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12-26-2007, 07:40 AM | #132 | |
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Link me WHERE you have explained this, I've just re-read this thread! |
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