Audizine - An Automotive Enthusiast Community

Page 6 of 6 FirstFirst ... 456
Results 201 to 228 of 228
  1. #201
    Junior Member Two Rings
    Join Date
    Jul 20 2012
    AZ Member #
    97211
    Location
    London

    Guest-only advertisement. Register or Log In now!
    Quote Originally Posted by AmateurSQ5 View Post
    Hey, guys! Could you please confirm if APR stage 3 ECU software will work fine with 034 stage 3 TCU software?
    I cannot say for certain, but it's probably not a good idea to mix ECU and TCU tunes from different vendors.

  2. #202
    Active Member One Ring
    Join Date
    Oct 21 2024
    AZ Member #
    996581
    Location
    Nicosia/Cyprus

    Quote Originally Posted by Arin@APR View Post
    Thanks! That update fix is being pushed with the next platform we're releasing.
    May be Arin could answer on my question related to combining 034 TCU tune and APR ECU tune...
    Also, is there option to install ECU tune remotely\somehow else?

  3. #203
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    I've never tried the 034 TCU. You can always use ours which is matched to our ECU.

    We have dealers in Cyprus. Our at home flashing solution is not yet ready for the ROW market.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  4. #204
    Senior Member Four Rings
    Join Date
    Nov 20 2021
    AZ Member #
    643282
    Location
    United Kingdom

    Quote Originally Posted by Akis View Post
    I cannot say for certain, but it's probably not a good idea to mix ECU and TCU tunes from different vendors.
    Very common on most platforms, this one included.

    Gets messy when fake "torque limiter patching" gets hacked into tunes but that is very much a thing of the past and nothing to be concerned about with any of the major OTS offerings for this platform.
    Build Thread: Audi S4 B9 with G35-1050 and Built Engine

    - Custom big turbo G35-1050 (0.83 AR)
    - Fully built shortblock and ported heads
    - Added port injection and direct meth injection

  5. #205
    Active Member One Ring
    Join Date
    Oct 21 2024
    AZ Member #
    996581
    Location
    Nicosia/Cyprus

    Quote Originally Posted by Arin@APR View Post
    I've never tried the 034 TCU. You can always use ours which is matched to our ECU.

    We have dealers in Cyprus. Our at home flashing solution is not yet ready for the ROW market.
    My current config is SQ5 2018, 034 Carbon intake + 034 superduper inlet + Wagner IC + st1 034 ECU tune +st2 TCU tune. Only ron93 is available here.

    @Arin, could you please approve my next steps and desired config:

    1. Buy APR turbo kit with APR ECU stage 3 tune
    2. Buy 63mm ring for inlet
    3. Install turbo
    4. Go to APR dealer in Nicosia and update ECU tune
    5. I would like to try to stay on 034 TCU tune, so I will upgrade to stage 3 034 TCU tune
    6. Optional - upgrade HPFP for bigger headroom ( doesn't need further ECU upgrade)
    7. Optional - In the case of any issues switch to APR TCU stage 3 tune

    - - - Updated - - -
    Quote Originally Posted by AldermanToffee View Post
    Very common on most platforms, this one included.

    Gets messy when fake "torque limiter patching" gets hacked into tunes but that is very much a thing of the past and nothing to be concerned about with any of the major OTS offerings for this platform.
    Thanks for your opinion, dude.

  6. #206
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    Sounds pretty good, except the HPFP. If you add it, flash the HPFP file.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  7. #207
    Active Member One Ring
    Join Date
    Oct 21 2024
    AZ Member #
    996581
    Location
    Nicosia/Cyprus

    Quote Originally Posted by Arin@APR View Post
    Sounds pretty good, except the HPFP. If you add it, flash the HPFP file.
    Just to clarify:
    Is it mandatory condition for proper work of ECU? Or I will not have additional safety headroom related to hpfp performance and this is it.

  8. #208
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    2 Things.

    1. The ECU needs to know how big the HPFP. It will assume it's smaller but with every stroke it will displace more fuel. This will result in a correction / trim, but it may be enough to cause a fault (I don't know, because I haven't specifically tried it, or at least don't recall if engineering did).

    2. The non HPFP ECU tune doesn't know the extra fueling headroom is there, so it won't take it into account.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  9. #209
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    About 10 days ago my APR stage 3 turbo started making a spin down noise after the ignition was turned off. It's gotten more prominent since then.

    Just after the noise started, I had a cooling system DTC and fans blowing super hard all the time. I reset the DTCs 5 days ago and that problem has not returned. The turbo spin down noise remains however.

    I have ~15,000 miles on the install and change my oil religiously every 5,000 miles. All drives fine and there are no CELs or DTCs. My tuner took off the turbo inlet to check for problems and all looked perfect - bearings tight, no impeller damage, no signs of contact between the impeller and housing.

    Anyone else with the APR stage 3 install had this noise? And yes, I've had lots of contact with APR - interested if others have had this happen: https://youtube.com/shorts/L54H7PIck6o

    My tuner and I think it's obviously the turbo. Nothing I can think of takes 20+ seconds to spin down from idle (I've even blocked the radiator fans (after the ignition is switched off of course!)).
    Last edited by GoCougs1234; 12-27-2024 at 11:37 PM.
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  10. #210
    Junior Member Two Rings
    Join Date
    Apr 29 2022
    AZ Member #
    696275
    Location
    Middletown DE

    Quote Originally Posted by GoCougs1234 View Post
    About 10 days ago my APR stage 3 turbo started making a spin down noise after the ignition was turned. It's gotten more prominent since then.

    Just after the noise started, I had a cooling system DTC and fans blowing super hard all the time. I reset the DTCs 5 days ago and that problem has not returned. The turbo spin down noise remains however.

    I have ~15,000 miles on the install and change my oil religiously every 5,000 miles. All drives fine and there are no CELs or DTCs. My tuner took off the turbo inlet to check for problems and all looked perfect - bearings tight, no impeller damage, no signs of contact between the impeller and housing.

    Anyone else with the APR stage 3 install had this noise? And yes, I've had lots of contact with APR - interested if others have had this happen: https://youtube.com/shorts/L54H7PIck6o

    My tuner and I think it's obviously the turbo. Nothing I can think of takes 20+ seconds to spin down from idle (I've even blocked the radiator fans (after the ignition is switched off of course!)).
    Ive heard my electric fans sometimes spin down and sounds a little noisy but nothing with the turbo.

  11. #211
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    I don't specifically have an answer myself, but make sure you put in a ticket with our support team so we can log the event in our system and help if anything is off!
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  12. #212
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    Quote Originally Posted by Arin@APR View Post
    I don't specifically have an answer myself, but make sure you put in a ticket with our support team so we can log the event in our system and help if anything is off!
    Thanks., I mos def have engaged APR (and cc'ing my tuner). Just taking a poll of users to see f they've experienced something similar as APR's prelim assessment is NPF based on the tuner's inspection (i.e., maybe the noise is normal, esp. after some miles).
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  13. #213
    Junior Member Two Rings
    Join Date
    Jul 20 2012
    AZ Member #
    97211
    Location
    London

    Quote Originally Posted by GoCougs1234 View Post
    About 10 days ago my APR stage 3 turbo started making a spin down noise after the ignition was turned off. It's gotten more prominent since then.

    Just after the noise started, I had a cooling system DTC and fans blowing super hard all the time. I reset the DTCs 5 days ago and that problem has not returned. The turbo spin down noise remains however.

    I have ~15,000 miles on the install and change my oil religiously every 5,000 miles. All drives fine and there are no CELs or DTCs. My tuner took off the turbo inlet to check for problems and all looked perfect - bearings tight, no impeller damage, no signs of contact between the impeller and housing.

    Anyone else with the APR stage 3 install had this noise? And yes, I've had lots of contact with APR - interested if others have had this happen: https://youtube.com/shorts/L54H7PIck6o

    My tuner and I think it's obviously the turbo. Nothing I can think of takes 20+ seconds to spin down from idle (I've even blocked the radiator fans (after the ignition is switched off of course!)).
    Still not got round to fitting my DTR8868 yet but oh man that is some sound...

    Wasn't there an issue recently where the tune was not calibrated for aftermarket intakes or similar? I wonder if this could have had an impact. Watching closely, hoping it all turns out fine though!

  14. #214
    Veteran Member Four Rings HurrayFive's Avatar
    Join Date
    Jul 21 2013
    AZ Member #
    119364
    Location
    Remote

    I've never ever heard a noise like that that's normal coming from a turbo directly unless the turbo is in a very bad news bears situation. You'd easily be able to see teeth etch marks on either the turbine or exhaust housings from a failing bearing sheering the wheel(s) against those housing walls, and you'd absolutely have even the tiniest of wiggles in the shaft itself. Turbos also don't spin down for this long, they get positive pressure from simply existing in the exhaust gas path at idle and would not continue for this long. Without being there to put my hands on your shaft (-_-) tho, I can't say for sure.

    This sounds more like you've slowly lost (or have been losing) a thermostat and one of your radiator fans has been going more nuts than the other to account for the thermostat and it finally gave up the grub and has now lost its bearing to the noise you're hearing now.

    '25 M8 Comp GC Frozen Tanzanite on Ivory/Night Blue - 11.0 @ 126 bone stock

  15. #215
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    After a bit more discussion the verdict for now is APR will do a warranty replacement. I've got probably 2,000 miles on the turbo since the noise started and all still works fine, AFAIK. IME, when a bearing starts to go (esp. a roller element bearing), it fails quickly. Perhaps during the replacement the cause will be determined to be something else. We'll see! Good on APR for relatively quickly deciding to do a warranty replacement.
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  16. #216
    Junior Member Two Rings
    Join Date
    Apr 29 2022
    AZ Member #
    696275
    Location
    Middletown DE

    Quote Originally Posted by GoCougs1234 View Post
    After a bit more discussion the verdict for now is APR will do a warranty replacement. I've got probably 2,000 miles on the turbo since the noise started and all still works fine, AFAIK. IME, when a bearing starts to go (esp. a roller element bearing), it fails quickly. Perhaps during the replacement the cause will be determined to be something else. We'll see! Good on APR for relatively quickly deciding to do a warranty replacement.
    Awesome to hear! No doubt they were going to make it right.

  17. #217
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    Quote Originally Posted by Branman1 View Post
    Awesome to hear! No doubt they were going to make it right.
    Swap scheduled for next Tuesday.

    This is why I went APR. Stage 1 was a treat and service and tech support has always been a treat plus AFAIK APR is the only one-stop-shop for a smog legal, stage 3 install for this platform - ECU and TCU software, turbo, all the fiddly bits.

    Sure, it'd be better if there wasn't a (suspected) turbo problem but stuff happens when hot rodding (which I've done a lot of in the distant past). I'll be quite interested to know the exact problem and it is hoped the cause can also be determined.
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  18. #218
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    My local tuner replaced the turbo under warranty - back to whisper quiet turbo operation. Nothing obviously wrong with it so it's internal - my bet is indeed the bearing(s).
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  19. #219
    Junior Member Two Rings
    Join Date
    Jul 20 2012
    AZ Member #
    97211
    Location
    London

    Quote Originally Posted by GoCougs1234 View Post
    My local tuner replaced the turbo under warranty - back to whisper quiet turbo operation. Nothing obviously wrong with it so it's internal - my bet is indeed the bearing(s).
    Glad you got it sorted, hoping the bearing failure was an isolated incident rather than the result of a design flaw.

  20. #220
    Junior Member Two Rings
    Join Date
    Apr 29 2022
    AZ Member #
    696275
    Location
    Middletown DE

    Quote Originally Posted by GoCougs1234 View Post
    My local tuner replaced the turbo under warranty - back to whisper quiet turbo operation. Nothing obviously wrong with it so it's internal - my bet is indeed the bearing(s).
    I believe I may be plagued with the same thing. I did a cold start this morning and shut it off after about 5 seconds (had to run back in the house) and noticed a noise exactly like yours. The fans were not spinning. I removed my turbo inlet just a few minutes ago and spun it by hand. It seems to move freely but there is a good amount of noise. I’m going to upload to YouTube real quick.

  21. #221
    Junior Member Two Rings
    Join Date
    Apr 29 2022
    AZ Member #
    696275
    Location
    Middletown DE

    https://youtu.be/UaQUU2Kruis?si=hb_ykoWCscq2-Cc1

    You can certainly hear something. I’m going to try to record the spool down after shutting it off tomorrow sometime. Maybe the start bearings going out.

  22. #222
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    Quote Originally Posted by Branman1 View Post
    https://youtu.be/UaQUU2Kruis?si=hb_ykoWCscq2-Cc1

    You can certainly hear something. I’m going to try to record the spool down after shutting it off tomorrow sometime. Maybe the start bearings going out.
    Hmmm. FWIW, my tuner inspected and didn't get a noise when spinning by hand. But yeah, if you have a ~20 second spin down noise like mine, you probably have a turbo replacement in your near future (FWIW, I drove like 2,000 miles with that noise (started happening when I was (way) out of town on a road trip).)
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  23. #223
    Junior Member Two Rings
    Join Date
    Jul 20 2012
    AZ Member #
    97211
    Location
    London

    Quote Originally Posted by GoCougs1234 View Post
    Hmmm. FWIW, my tuner inspected and didn't get a noise when spinning by hand. But yeah, if you have a ~20 second spin down noise like mine, you probably have a turbo replacement in your near future (FWIW, I drove like 2,000 miles with that noise (started happening when I was (way) out of town on a road trip).)
    Did you send the turbo back to APR or did you hang on to it? Could be worth tearing it down and taking a closer look at the internals.

  24. #224
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    Quote Originally Posted by Akis View Post
    Did you send the turbo back to APR or did you hang on to it? Could be worth tearing it down and taking a closer look at the internals.
    My tuner sent the turbo back - the manufacturer will know WAY more about troubleshooting it than I ever will. Thing is I don't know if APR makes it in-house (it's a def maybe - "APR" is cast into the housing) or was a private label job. Either way, I asked APR to give feedback if/when it's available.
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

  25. #225
    Veteran Member Four Rings
    Join Date
    Apr 07 2011
    AZ Member #
    73609
    Location
    Home of the mighty beaver

    Quote Originally Posted by GoCougs1234 View Post
    My tuner sent the turbo back - the manufacturer will know WAY more about troubleshooting it than I ever will. Thing is I don't know if APR makes it in-house (it's a def maybe - "APR" is cast into the housing) or was a private label job. Either way, I asked APR to give feedback if/when it's available.
    An APR tech let it slip they are made by Garrett for them. Probably asian foundry. But a good company none the less.

  26. #226
    Junior Member Two Rings
    Join Date
    Jul 20 2012
    AZ Member #
    97211
    Location
    London

    Quote Originally Posted by GoCougs1234 View Post
    My tuner sent the turbo back - the manufacturer will know WAY more about troubleshooting it than I ever will. Thing is I don't know if APR makes it in-house (it's a def maybe - "APR" is cast into the housing) or was a private label job. Either way, I asked APR to give feedback if/when it's available.
    Cool, would be great to know more after they tear it down. One thing that did cross my mind though is apparently there have been some reports of the cam chain sprockets on the B9 3.0T grinding down over time and depositing metallic flakes into the oil. This is mainly explored and highlighted by the guys that run VAG Technic over here in the UK. I believe ball bearing CHRA's are a little more sensitive to contamination and I do wonder if there are such particles in the oil, is the factory oil filter effective enough at removing them...

    I asked APR about installing their turbo with an in-line oil filter and their response was that it isn't anything they have run or tested so cannot really recommend it. They imagine it would be fine, but can't rule out it creating a restriction point that could potentially lead to the turbo not getting enough oil.

  27. #227
    Stage 2 Banner Advertiser Four Rings Arin@APR's Avatar
    Join Date
    Aug 23 2008
    AZ Member #
    32286
    Location
    Auburn, AL

    Interesting theory on the debris. It's definitely worth investigating. I'll bring that up with the team.
    GoAPR.com | Facebook | YouTube | Twitter | Instagram
    Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
    Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

  28. #228
    Senior Member Three Rings
    Join Date
    Jan 28 2022
    AZ Member #
    667920
    Location
    Seattle area

    Quote Originally Posted by Akis View Post
    Cool, would be great to know more after they tear it down. One thing that did cross my mind though is apparently there have been some reports of the cam chain sprockets on the B9 3.0T grinding down over time and depositing metallic flakes into the oil. This is mainly explored and highlighted by the guys that run VAG Technic over here in the UK. I believe ball bearing CHRA's are a little more sensitive to contamination and I do wonder if there are such particles in the oil, is the factory oil filter effective enough at removing them...

    I asked APR about installing their turbo with an in-line oil filter and their response was that it isn't anything they have run or tested so cannot really recommend it. They imagine it would be fine, but can't rule out it creating a restriction point that could potentially lead to the turbo not getting enough oil.
    But that is what an oil filter is for (and I am religious about oil/filter change at 5,000 mile intervals per APR's direction). Even if were due to contaminated oil to that level, the engine would have been destroyed too, or had obvious problems such as excess oil consumption (and I'm currently burning only ~1/3 quart of oil between oil changes).
    2021 Audi SQ5 Prestige SSP w/APR Stage 3 (91 octane) - 0-60 in 3.5 s and 1/4 mile in 11.6 s @ 117 mph

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


    © 2001-2025 Audizine, Audizine.com, and Driverzines.com
    Audizine is an independently owned and operated automotive enthusiast community and news website.
    Audi and the Audi logo(s) are copyright/trademark Audi AG. Audizine is not endorsed by or affiliated with Audi AG.