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BMW 3-Series (E90 E92) Forum
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AccessPORT Tuning Discussion - hosted by COBB Calibration Team
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01-13-2011, 11:28 AM | #67 | |
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Regards, Lance |
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01-13-2011, 11:32 AM | #68 | |
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01-13-2011, 11:35 AM | #69 | |
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01-13-2011, 11:50 AM | #70 |
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I have to say I'm really digging Cobb's approach to tuning.
I like their measured approach. A summer map seems to be in order here, for the stage 1 cobb. I would like one that it is dialed back 20% to 25% just for those 101 or 103 days. |
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01-13-2011, 12:01 PM | #71 |
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Same here. I like their openess, and willingness to work with people. Not saying that other tuners dont have the same relationship with their customers, its just Cobb has more established logical, balance, and most important to me is uniform in what they do.
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01-13-2011, 12:09 PM | #73 |
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01-13-2011, 12:13 PM | #74 |
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Drives: C6 Z06, 09 335i, 10 335xi
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Location: www.TopGearSolutions.com
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01-13-2011, 12:43 PM | #75 | |
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1. low temp, lower boost needed for x load 2. high temp, higher boost needed of x load #2 scares me because the timing is based on this load value and temp is not accounted for. So no reaction to cylinder temp, pressure until knock is experienced. this explains what i have noticed with datalogging. |
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01-13-2011, 12:53 PM | #76 |
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my opinion is that the N54 needs some outside logic to manupulate the load values and change timing, thus i like the v5 approach. I would like to experience a flash for part throttle response. The v5, my only experience with piggies, doesn't seem to be as linear as stock. Not sure if this makes sense, but kinda steps in power... could just be in my head.
For a flash to work well, in all conditions, you may need to add to the logic... is this possible? |
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01-13-2011, 01:01 PM | #77 | |
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It keeps consistency for power output in theory.... Any real tuner would want a tune that brings out the most power given the external conditions. |
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01-13-2011, 01:03 PM | #78 |
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01-13-2011, 01:31 PM | #80 | |
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http://www.accessecu.com/support/LaunchControl.pdf |
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01-13-2011, 01:34 PM | #81 | |
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The actually shifting effort is amazing compared to you trying to flat foot shift on a stock ecu. It just slides into gear and the rpms never hit the rev limiter due to the ignition retard that takes place. However this isnt the best thing for turbos or cats. |
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01-13-2011, 01:42 PM | #83 |
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what flat foot shifting does, is pretty much retards ignition. When you drastically retard ignition you generate more heat and raise EGT to the point where heat/fire is keeping the turbo spooled.
Don't know if you ever saw a 2 step car....they all pretty much pop/backfire/shoot flames, FFS is pretty much the same concept. Maintaing/generating boost, without actual load present. |
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01-13-2011, 01:53 PM | #86 |
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The thing is you shouldn't need a "Summer MAP." The factory ECU is more than capable of compensating for these conditions and anything Cobb has done to the ECU should not effect the ECUs ability to adapt to changes in atmospheric changes ie temp, humidity and elevation.
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01-13-2011, 02:55 PM | #88 | |
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