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12-11-2017, 03:15 PM | #1651 | |
Scooby Specialist
Member#: 460907
Join Date: Jan 2017
Chapter/Region:
RMIC
Location: Colorado
Vehicle:2020 Golf GTI |
Quote:
The mid pipe is part of the cat back and does NOT require tuning. He didn't touch his mid pipe, so I wasn't sure why you brought that up. Hence me explaining the difference between the I pipe which does.need tuning and the mid pipe which does not.
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12-11-2017, 03:46 PM | #1652 |
Scooby Specialist
Member#: 453427
Join Date: Aug 2016
Chapter/Region:
MWSOC
Location: Detroit, MI
Vehicle:2017 WRX Crystal White Pearl |
Ah you know what I got confused and interchanged intermediate and midpipe, I've heard people refer to the exhaust a few ways.
J-pipe - Catback J-Pipe - Midpipe - Catback J-Pipe - Intermediate Pipe - Midpipe - Axelback < - This is the full list. Anyway, that intermediate pipe most definitely needs a tune, or you can replace the J portion and run a MAP OTS Stage 2. |
12-11-2017, 05:21 PM | #1653 |
Scooby Specialist
Member#: 460907
Join Date: Jan 2017
Chapter/Region:
RMIC
Location: Colorado
Vehicle:2020 Golf GTI |
I can't prove it, but I'm pretty sure exhaust manufacturers are deliberately trying their hardest to cofuse and disorient us with their 100x combinations of piping.
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12-11-2017, 05:36 PM | #1654 | |
Scooby Newbie
Member#: 114588
Join Date: May 2006
Location: SoCal626
Vehicle:2016 WRX (currently) |
Quote:
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12-11-2017, 05:37 PM | #1655 |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
I know, I know. This is for posting logs. But kind of related, no? I’ve been trying to break through the 13 sec 1/4 mile. So I’m loud and proud right now. Next goal—breaking through 12 |
12-11-2017, 05:51 PM | #1656 |
Scooby Specialist
Member#: 453427
Join Date: Aug 2016
Chapter/Region:
MWSOC
Location: Detroit, MI
Vehicle:2017 WRX Crystal White Pearl |
Good run!
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12-14-2017, 08:09 AM | #1657 |
Scooby Specialist
Member#: 181298
Join Date: May 2008
Chapter/Region:
MAIC
Location: MAIC
Vehicle:2019 KUV 21 Crystal White |
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12-19-2017, 09:25 PM | #1658 |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
Hey guys (in the know). I just pumped my first tank of ethanol in. (10 gal, the rest 93 oct). How can I use my Accessport to determine my concentration ? I turned on ethanol raw but it only reads 0.0
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12-19-2017, 11:47 PM | #1659 |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
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12-20-2017, 01:42 AM | #1660 |
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Member#: 388015
Join Date: Apr 2014
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Anybody have any logs with leaky headers or turbo gasket? Would like to see how the afr behaves from low to high boost. Thinking I have an exhaust leak and false lean.
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12-20-2017, 02:22 AM | #1661 |
Scooby Specialist
Member#: 460907
Join Date: Jan 2017
Chapter/Region:
RMIC
Location: Colorado
Vehicle:2020 Golf GTI |
Compare Commanded Fuel Final with your AFR. If you're hitting the AFR then you probably don't have a leak, if you're not hitting AFR investigate.
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12-20-2017, 02:37 AM | #1662 |
Scooby Newbie
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Join Date: Apr 2014
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12-20-2017, 11:06 AM | #1663 |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
https://datazap.me/u/jnorwooddds2004...0&data=6-12-21
I was thinking I did 3rd gear WOT but I guess this is 2nd thru 4th WOT. Preparing to add ethanol |
12-20-2017, 11:59 AM | #1664 |
Scooby Specialist
Member#: 327563
Join Date: Jul 2012
Chapter/Region:
MWSOC
Location: Cincinnati
Vehicle:2018 Civic Type R 2008 N54 335i |
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12-20-2017, 12:03 PM | #1665 |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
I am now. Big point about that! If you look at my earlier post from last night. I didn’t realize it at the time but I hadn’t hooked up the flex fuel unit to the old TGV connector. So the flex fuel system was not getting any power. I realized it after I added ethanol and went to monitor it, which read 0.0. So any further logs will have it. Thanks for the input! |
12-20-2017, 12:08 PM | #1666 |
Scooby Specialist
Member#: 460907
Join Date: Jan 2017
Chapter/Region:
RMIC
Location: Colorado
Vehicle:2020 Golf GTI |
He's saying monitor Ethanol Final not Ethanol Raw like you mentioned. Ethanol Raw is constantly changing because your gas doesn't have 100% consistency- typically there is a 1-2% variance in Ethanol you'll notice within the same tank. Ethanol Final is what your car is compensating for, that's what is important.
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12-20-2017, 12:11 PM | #1667 | |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
Quote:
Ah. I can do both for sure. I asked Mike Botti what he wanted me to monitor out of the two and he said he wanted raw monitored. I’ll bump something else out and add final too. |
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12-20-2017, 06:15 PM | #1668 |
Scooby Specialist
Member#: 337626
Join Date: Nov 2012
Chapter/Region:
TXIC
Location: Dallas, Texas
Vehicle:2015 WRX Crystal White Pearl |
my DAM dropped on E40 i gave it half throttle coming out of a corner and heard a single "clack". the windows were down, maybe it was just gravel, don't say LSPI . immediately my DAM went down and i triggered the biggest FKL i've ever seen on my AP, -5.62. i turned logging on and cruised around while the FKL went down.
https://datazap.me/u/brian/big-knock...&data=11-15-22 |
12-20-2017, 06:19 PM | #1669 | |
Scooby Newbie
Member#: 472308
Join Date: Aug 2017
Location: DFW Texas
Vehicle:2015 WRX Red |
Quote:
Oh...I will pray to the Subaru gods for you. I’m interested to see your log, must be pretty long cause my phone isn’t doing the trick. Maybe one of these wizards on here will tell you they can see it’s nothing major |
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12-21-2017, 06:51 AM | #1670 | |
Scooby Specialist
Member#: 327563
Join Date: Jul 2012
Chapter/Region:
MWSOC
Location: Cincinnati
Vehicle:2018 Civic Type R 2008 N54 335i |
Quote:
Just remember Ethanol while amazing at preventing knock is prone to pre-ignition much more than gasoline. |
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12-21-2017, 09:59 AM | #1671 | ||
Scooby Specialist
Member#: 421271
Join Date: May 2015
Chapter/Region:
MWSOC
Location: Chicago
Vehicle:2015 WRX Galaxy Blue Pearl |
Quote:
Quote:
If the ECU read FKL and DAM dropped it wasn't LSPI. You have to remember that the ECU is not listening for knock during the time that LSPI occurs. That was likely just a nasty old regular knock |
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12-21-2017, 10:07 AM | #1672 | |
Scooby Specialist
Member#: 327563
Join Date: Jul 2012
Chapter/Region:
MWSOC
Location: Cincinnati
Vehicle:2018 Civic Type R 2008 N54 335i |
FA20 COBB Logs - Post Yours Here!
Quote:
We get knock for loose exhaust pieces and A/C compressors. A giant loud resonance in the engine is going to get picked up in the same characteristic. Especially the description of the loud clacking sound. |
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12-21-2017, 10:08 AM | #1673 |
Scooby Specialist
Member#: 337626
Join Date: Nov 2012
Chapter/Region:
TXIC
Location: Dallas, Texas
Vehicle:2015 WRX Crystal White Pearl |
LSPI has knock events that follow the main preignition. The initial event can't be detected with this kind of system but following detonations can.
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12-21-2017, 10:55 AM | #1674 |
Scooby Newbie
Member#: 415503
Join Date: Mar 2015
Chapter/Region:
MAIC
Location: Nova
Vehicle:2016 WRX limited black silica |
Hey all. Just got my new accessport and I loaded the cobb 91 octane ots tune to it. (normal wastegate selected)
Car has always run great with stock tune but was hoping to fix the 4k rpm lag from it. This is my first ever datalog taken on the way to work this morning. Not really sure what I am looking at but it seems I am underboosting (stock tune doesnt ever do this to me)? Also, should I be concerned about the fine knock learn? Cobb documentation states up to -2.5 is "normal" but I would like to see that gone!! perhaps its bad gas....I dont know. conditions: 39 degrees, 4rth gear pull, car was warmed to normal temps, oil at 190 degrees. car: All stock aside from nameless axle back muffler deletes. I am still learning the AP so I do not know how to monitor the fueling just yet as I read earlier on in the thread that I should be monitoring that, I think I need to go into the AP and tell it to monitor it? Still learning the interface. https://datazap.me/u/vtwinjunkie/91o...-6-10-11-16-17 all suggestions welcome. Thanks Car regularly sees 18-19 psi (indicated on the dash) tapering down a bit as rpm's increase to redline so when I saw this low boosting after the tune I was alarmed. I think I may try the HWG tune and see if this helps. Last edited by vtwinjunkie; 12-21-2017 at 03:15 PM. |
12-21-2017, 02:24 PM | #1675 | |
Scooby Specialist
Member#: 453427
Join Date: Aug 2016
Chapter/Region:
MWSOC
Location: Detroit, MI
Vehicle:2017 WRX Crystal White Pearl |
Quote:
https://datazap.me/u/vtwinjunkie/91o...7&zoom=291-519 I would double check all intercooler hoses and make sure your intake piping has no leaks after the MAF. You can see the FKL pulling timing out of the motor in the zoomed in part of your log, usually feedback knock (FBK) values of -1.41 to -2.81 will occur and are generally accepted due to AC compressor etc. but that learned knock and AFR tells me the primary O2 is seeing more air somewhere, or OTS MAF scale could just not work for your car. An easy way to find out would be to get a smoke test done at a local shop, if that comes back good look into a protune. |
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