996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

1.45 bar on 16G, does it looks ok? Log attached

Old Jun 28, 2012 | 11:45 AM
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Question 1.45 bar on 16G, does it looks ok? Log attached

Does it look like the wastegate a bit over tighten? And is the AFR looks ok?
It has 16G with 5 bar, 1 bar wastegate, 100 Cell exhaust, header, 93 tune. Thanks.

P.S Boost started at row 2200 in the log file.
 

Last edited by boyg; Jun 28, 2012 at 12:07 PM.
Old Jun 28, 2012 | 12:04 PM
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says zip corrupted. may be my work computer security...
 
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Old Jun 28, 2012 | 12:06 PM
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Originally Posted by prodigymb
says zip corrupted. may be my work computer security...
Maybe the file got problem, attach again.
 
Attached Files
File Type: zip
2012_06_24_06_51_39.zip (214.3 KB, 71 views)
Old Jun 28, 2012 | 12:26 PM
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not sure you logged the right Lambda field

these are the ones you want...

Oxygen sensing, bank 1 Lambda Value and Oxygen sensing, bank 2 Lambda Value
 
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Old Jun 28, 2012 | 06:30 PM
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Originally Posted by prodigymb
not sure you logged the right Lambda field

these are the ones you want...

Oxygen sensing, bank 1 Lambda Value and Oxygen sensing, bank 2 Lambda Value
This, and you need to log ignition angle. Any yes, it looks like the actual boost is about .15-.2 bar ahead of requested so you may want to loosen the gates a touch. Also, your IATs are up 21C over baseline within 8 seconds = intercoolers are struggling. Be careful as you're touching 1.5 bar at 3900 rpm on 93 octane!
 

Last edited by earl3; Jun 28, 2012 at 06:39 PM.
Old Jun 28, 2012 | 06:43 PM
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+1 to the previous two posts. Also log injector time. You'll want to know how the fueling is keeping up with the rest.

Jon
 
Old Jun 28, 2012 | 06:52 PM
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+1 on above and I would probably start with lower boost and work your way up once you can verify everything. 1.45 is probably going to be way over your injector duty cycle on stock injectors with a 5 bar.
 
Old Jun 28, 2012 | 07:41 PM
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Thanks guys, will loosen a bit the wastegate and log it again with more selections.
 
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