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09-09-2011, 04:41 PM | #947 | |
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09-09-2011, 05:14 PM | #950 | |
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09-09-2011, 05:34 PM | #951 |
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09-09-2011, 05:40 PM | #952 |
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I'm noticing on an associate's 135i that during data logging on some runs, we are seeing boost reach 20 psi on the AP unit's records. I thought we would be seeing closer to 14.5psi.
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09-09-2011, 10:42 PM | #953 |
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Theres no way thats possible without new engine internals, etc. If not, running that kind of psi on our smaller twin turbos on an engine that was meant to see around 7-8 psi stock, they will certainly see problems start to come.
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09-10-2011, 12:13 AM | #954 | |
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The stock turbos are over spinning at that psi,and even better this is being done on pump gas too..there's going to be some problems with this psi very shortly!the funny thing is even with that much boost the jb4 still whips it..tunes are like asshols ,everyone has one but some stink mOre then others. |
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09-10-2011, 12:36 AM | #955 |
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I agree. That's why I'm concerned. Are the numbers coming off the data log accurate, or maybe the numbers going into the data log from the ECU correct?
I don't mind sending a copy of the data log out... |
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09-10-2011, 12:59 AM | #956 |
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pretty sure this has been answered a million times before... figure out WHERE that psi value is being read. I'm willing to bet that this is NOT psi in the intake manifold.
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09-10-2011, 04:03 AM | #958 | |
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That is what you are seeing between gear shifts. If you are running the new 3.00 map then you would not see this becasue Cobb has calibrated the AP differently to not show this anymore. It is not a real psi number. With the new map you will now see negative psi at low throttle and idle which is the real value and no boost spikes. |
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09-10-2011, 09:04 AM | #959 | |
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That's excellent news that the boost number we're seeing is not an accurate number. His AP unit is still running 2.03 until 3.0 comes out of beta. Thanks for the info! |
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09-11-2011, 12:33 PM | #961 |
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If you go back a page or two I think sometime in the next week is being hinted at for at least a beta release...
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09-11-2011, 12:55 PM | #963 |
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I haven't had any issues with beta releases (including the 3.00 beta I've been on for a few weeks). I trust when Cobb makes a public release and I know the alpha release has been out for some time now... I'm ready for it.
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09-11-2011, 01:17 PM | #964 |
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I'm curious to see how much boost this map will give
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09-11-2011, 01:31 PM | #965 |
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I would guess 17-18psi
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09-11-2011, 04:03 PM | #967 | |
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09-12-2011, 11:57 AM | #968 | |
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