03-12-2014, 09:22 AM | #23 | |
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03-12-2014, 10:08 AM | #24 | |
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Mike |
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03-12-2014, 10:13 AM | #25 |
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03-12-2014, 10:44 AM | #26 | |
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http://preisliste.ac-schnitzer.de/ac.../110082360.pdf |
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03-12-2014, 11:15 AM | #27 |
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Yep which is why they can safely run more boost than BMS. Mike I have only seen one dyno of +3psi with the BMS on pump gas and the torque curve looked HORRIBLE. I mean less torque than stock in the 4500 rpm range , massive knock sensing horrible. + 5psi with the BMS is buying a whole new motor, no way I'd do that with any fuel.
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03-12-2014, 11:47 AM | #28 | |
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On Stage1 with pump gas I've seen plenty of clean dynos. I'm starting to think you just have an anti-BMS agenda as I see you pop up in every thread mentioning their products negatively. FYI if you monitor timing/knock on these cars when pushing things too far knock comes up at higher RPM a bit past peak power, not peak torque at lower rpm. So if your dyno has issues around peak torque its not likely to be knock related. More likely trans intervention/throttle related. You'd have to study the details of the specific instance though to determine that. PS here is a forum member's pump gas Stage1 dyno. Note more hp and torque vs stock and a curve that mirrors the stock curve in terms of smoothness. Both stock and tuned curves are a bit wavy as they left the dyno smoothing setting at 1 instead of 5. http://f10.m5post.com/forums/showthread.php?t=917077 Mike Last edited by Mike@N54Tuning.com; 03-12-2014 at 12:11 PM.. |
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03-12-2014, 12:04 PM | #29 | |
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03-12-2014, 12:20 PM | #30 | ||
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Hit the wrong graph this is Terry's race gas 96 mix on 3 psi which looks ok . |
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03-12-2014, 12:27 PM | #31 | ||
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03-12-2014, 12:36 PM | #32 | |
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http://www.remus.eu/powerizer/ http://www.chiptuning.com/eng/shop/d...nu=BMW&model=3 Series (F30, F31) (2012-...)&motor=320i 2.0 184 PS aut. |
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03-12-2014, 12:40 PM | #33 |
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ECU cutting the fuel 1000rpm's early.. defiantly not good.
Let's just hope that DINAN did in fact break the M5 ECU encryption and are not far out from releasing it.
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03-12-2014, 03:36 PM | #34 | |
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he specifically told me to only use 3lbs in limited track settings with 100 octane which I can easily get... I certainly don't think its perfected to the point where I'd consider it safe to just drive and boost around town like I do with the 2.2 which I've been safely using for the last 5k or more. |
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03-12-2014, 03:39 PM | #35 |
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Thats what I'm hoping on, but the fact that it's shaping to be a piggyback and might not have software like Every other car they do is somewhat concerning. Dinan doesn't strike me as a company that would do a piggyback unless they had to as its much easier to send out software then hardware to local installers.
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03-12-2014, 03:45 PM | #36 | |
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03-12-2014, 03:48 PM | #37 | ||
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03-12-2014, 03:48 PM | #38 |
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I hope it's not a piggyback.. but what is a DINAN TCU (sounds like a piggyback device to me)?
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03-12-2014, 04:44 PM | #39 | ||
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03-12-2014, 04:59 PM | #40 | |
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03-12-2014, 05:01 PM | #41 | |
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Secondly, you are mistaken that those torque drops on the dyno are tuning related or knock. They are DME torque management related. When dyno testing a DCT especially in 5th gear it sometimes decides to cut boost in the midrange. You can look at the logs and watch boost drop there. It's a dyno only artifact and its not entirely consistent. Some runs it will hold full boost there and other runs it will decide to drop it. It does this both stock and tuned. 4th gear pulls rarely get that issue but the runs are so short you often don't make as much power. So many prefer to do the runs in 5th. Finally, the other tuners are just adding +3-4psi on top of the competition/press flash. The CP runs a little less peak timing and a little richer AFR so has more room for manipulation. So if you happen to have the CP you can likely go a little more aggressively than the 2.25 pump gas and 3.0 race gas mix settings with a similar safety margin. Mike |
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03-12-2014, 05:08 PM | #42 | ||
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03-12-2014, 09:39 PM | #43 | |
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For starters, if you are going to say its making less torque than stock, we need to see the stock tuning run from the same dyno/gear/day to establish what stock torque was. The dyno I linked above looks as it should on pump gas when everything is setup and measured properly. 30-50whp gains across the board. Regarding settings, the 3.0 (+4psi) setting is meant for a race gas mix. I'm not sure how often I need to repeat the same fact. At some point people just need to read the manual. Mike |
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03-13-2014, 05:01 AM | #44 | |
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But it would have been FAR better to have a product that is programmed properly! Having a program interface that requires input of a "+Psi" number that isn't related to the actual boost increase makes no sense. It would have been far better to have a code that made no sense to anyone so that the operator actually HAD to look in the manual to find the correct code for +3Psi. As it is now, the operator is led to believe that a input of +3Psi actually means that. IMHO, such a method is a disaster waiting to happen as people either loose their manuals or don't read them. That's just how we humans are put together. Legal responsibility is one thing. Reputation is another. Just imagine having a fuel gauge in your car that, by design, reads different from reality and where the driver has to read the manual to know what a reading of 1/2 tank really means... Does it mean 3/4 or 1/3 Why not do at least that minimum of reprogramming of the BMS interface, so that +3Psi actually means +3Psi? |
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