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04-19-2017, 06:35 PM | #101 | ||
NASIOC Supporter
Member#: 337075
Join Date: Nov 2012
Chapter/Region:
BAIC
Location: San Jose, CA
Vehicle:2016 STI Limited Silver |
Quote:
Quote:
I am getting a built block and contemplating doing the lower delete (I have the upper one). It really looks like an obstruction. My installer believes it helps direct air.
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04-19-2017, 06:56 PM | #102 |
Scooby Specialist
Member#: 337626
Join Date: Nov 2012
Chapter/Region:
TXIC
Location: Dallas, Texas
Vehicle:2015 WRX Crystal White Pearl |
well the tradeoff with TGVs is worse low RPM tumble for more high RPM flow. i imagine this would be similar: without the divider you'd lose more (insignificant?) low end torque because the air won't increase in velocity to make it through the now two smaller pathways.
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04-20-2017, 07:06 PM | #103 |
Scooby Newbie
Member#: 397332
Join Date: Jul 2014
Chapter/Region:
MAIC
Location: Morgantown, WV
Vehicle:2015 WRX ISM |
What size socket is needed to turn the crank over?
Edit: Its a 22mm Last edited by gosefroba; 04-20-2017 at 09:55 PM. |
04-21-2017, 07:20 AM | #104 | |
Scooby Specialist
Member#: 395882
Join Date: Jul 2014
Chapter/Region:
MWSOC
Location: GR, Michigan
Vehicle:2016 WRX DGM |
Quote:
Like I said, they are literally an extension of the TGVs to keep the air to the one side of the port. With DI, there has to be some degree of tumble to the air entering the cylinders, so it really just enhances the effect for part throttle. |
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04-22-2017, 04:18 PM | #105 |
Scooby Newbie
Member#: 397332
Join Date: Jul 2014
Chapter/Region:
MAIC
Location: Morgantown, WV
Vehicle:2015 WRX ISM |
Car has 31k miles has had egr deletes and an IAG AOS since 20k
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04-24-2017, 02:53 PM | #106 |
Scooby Newbie
Member#: 210315
Join Date: May 2009
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:'15 Audi S3 Black |
Used the Subie Bros kit this weekend to clean my valves! The job really wasn't bad at all-- surprising simple to get to the valves even with all the extra hoses from my AOS.
2015 WRX w/ 33k mi. Mods (For what it's worth): - GrimmSpeed StealthBox Intake - GrimmSpeed EBCS - PRL TGV Deletes - Installed at ~13k mi - IAG EGR Block Off - Installed at ~13k mi - Crawford AOS - Installed at ~20k mi - PRL Charge pipe - MAP TMIC - Invidia Catless J-pipe - Invidia Q300 Catback Mine weren't awful, but still nice knowing they're clean. Surprising how much worse yours were gosefroba, considering you also have EGRD and AOS. Impossible for me to say just how beneficial the EGR Delete and AOS are, but confident they have at least some impact-- my TGV deletes were nice and clean compared to the TGVs I removed pre-AOS. Will definitely be doing this again in another 30k mi. |
04-24-2017, 03:20 PM | #107 |
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Member#: 340470
Join Date: Dec 2012
Location: Fort Wayne, IN
Vehicle:2017 WRX Limited Crystal White Pearl |
It will be interesting to see if people who do EGR delete need to reclean valves, or if they only need cleaned once at that point.
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04-24-2017, 03:22 PM | #108 |
Scooby Newbie
Member#: 210315
Join Date: May 2009
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:'15 Audi S3 Black |
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04-28-2017, 04:02 PM | #109 |
Scooby Newbie
Member#: 147141
Join Date: Apr 2007
Chapter/Region:
TXIC
Location: Houston
Vehicle:2015 WRX 6MT White |
I went ahead and added the FreeCAD model I made into that Google Drive folder. If anyone wants to open it and mess with it feel free. If you make improvements please add the improved file to the folder.
https://drive.google.com/open?id=0B7...UlNSFh1T25aYWc Edit: Just use a store bought one. I made my own because none were available. It worked OK, but from what I've heard, the ones for sale now are better. For instance: https://subiebros.com/subie-bros-fa2...lnut-blasting/ Last edited by the3dman; 10-15-2021 at 10:04 AM. |
04-28-2017, 07:41 PM | #110 |
Scooby Specialist
Member#: 459692
Join Date: Dec 2016
Chapter/Region:
South East
Location: Hampton Roads Va
Vehicle:2019 WRX STI silica black |
I'll have a functional water meth kit soon. I also happen to have brand new valves. When I pull my tgv deletes to add port injection I'll snap some pics and note the mileage
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05-02-2017, 05:23 PM | #111 |
Scooby Newbie
Member#: 440000
Join Date: Feb 2016
Chapter/Region:
SCIC
Vehicle:2016 WRX / Flex Fuel CBS |
Performed the walnut blast over the weekend on my brothers WRX. Took us awhile to try and come up with a rod for the blaster and vacuum adapter. But overall it came out pretty good. I ended up ordering the subiebros adapter and a BMW walnut blaster rod so that it could be a one man job when I have to blast my valves. Currently I have 44k miles on my motor and installed TGV and EGR deletes back when I hit 14k miles. So we will see how much gunk I have and post pics when this is completed
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06-12-2017, 06:55 PM | #112 |
Scooby Newbie
Member#: 147141
Join Date: Apr 2007
Chapter/Region:
TXIC
Location: Houston
Vehicle:2015 WRX 6MT White |
I walnut blasted my friend's Forester XT on Sunday. He has 94,000 miles on it, so I figured his valves would be absolutely caked with carbon. Nope. His looked better than mine did with just 38,000 miles. His EGR tube was 50-60% blocked though. I used a screw driver and just scraped gobs of carbon out of the tube.
Also, the Forester has a bit tighter engine bay with a bit more in the way. Made it a little harder to maneuver the blasting wand and much harder to get decent pics of the valves. Here's a before pic looking into the least obstructed port. I didn't bother with afters (they were clean). |
07-20-2017, 08:54 PM | #113 |
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Member#: 440587
Join Date: Feb 2016
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Any chance of restoring the pictures in the write up? Im at 47k, thinking of doing this soon.
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07-21-2017, 07:58 AM | #114 |
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Member#: 424403
Join Date: Jun 2015
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FYI. I can't see any of the original poster's pictures.
So I've been looking at this issue the last night (since I'm new to Turbo & DIT & carbon buildup) and I was wondering, have anyone thought about scoping it first to see if you need to do the valve cleaning? https://smile.amazon.com/gp/aw/d/B01MYTHWK4/ref=mp_s_a_1_fkmr0_1?ie=UTF8&qid=1500637893&sr=8-1-fkmr0&pi=AC_SX236_SY340_QL65&keywords=borescope+li ghted |
08-18-2017, 03:10 PM | #115 |
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Member#: 462316
Join Date: Feb 2017
Chapter/Region:
TXIC
Location: San Antonio TX
Vehicle:2017 WRX cwp |
Dirty intake valves https://imgur.com/gallery/6LIJb
Here's my valves after only 10,500 miles. Crawford aos and tgv deletes installed at 7,500. I ended up diying it with the subibros adapter and harbor freight blaster. |
12-01-2017, 09:25 PM | #116 |
Scooby Newbie
Member#: 457271
Join Date: Oct 2016
Chapter/Region:
NESIC
Location: Central Mass
Vehicle:2016 WRX WR Pearl Blue |
Hey everyone,
Sorry for the long delay in getting these pictures fixed. Damn photobucket! Haven't checked my car since I did it at 12K miles just to see what it looked like. Prob won't do mine again until I get to around 60K miles. Car has 22k miles currently and has been running great as my DD. I did end up deleting the EGR to help with build up. Did TGV's, boost controller, and intake/box as well. Stock exhaust. Got protuned by Matt Miner at WicketMattTuning and made 303whp and 308 wtq. High torque doesn't come on till after 4krpm so I don't shoot a rod through my block and it pulls all the way to redline. Night and day compared to Cobb Stage 1 OTS. |
12-21-2017, 06:18 PM | #117 |
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Member#: 447549
Join Date: May 2016
Location: Portland, OR
Vehicle:2015 WRX 6MT Premium CWP |
I'll be getting mine walnut blasted on Jan 5th for the 60k mile service.
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12-21-2017, 07:13 PM | #118 |
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Member#: 59993
Join Date: Apr 2004
Chapter/Region:
International
Location: WWAAYY west of the Mississippi
Vehicle:Ass, grass or cash no one rides for free!! |
Anyone is SoCal know where I can get this done?
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12-25-2017, 10:24 PM | #119 |
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Join Date: Dec 2013
Chapter/Region:
SCIC
Location: Chino Hills, CA
Vehicle:2015 WRX - Premium Crystal White Pearl |
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12-25-2017, 11:01 PM | #120 |
Scooby Guru
Member#: 59993
Join Date: Apr 2004
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International
Location: WWAAYY west of the Mississippi
Vehicle:Ass, grass or cash no one rides for free!! |
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01-13-2018, 11:07 PM | #121 |
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Member#: 184570
Join Date: Jul 2008
Chapter/Region:
SCIC
Location: LBC
Vehicle:2016 WRX WRB |
Awesome thread and info here! Curious to see if anyone in SoCal who has the subiebros kit (or just the necessary tools to do the job) would be willing to lend their tools for a fee?
I'm planning to install TGV, EGR deletes, and a Crawford AOS soon but wanted to take care of my intake valves before installing these parts. |
01-14-2018, 03:53 PM | #122 |
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Join Date: Feb 2007
Chapter/Region:
MWSOC
Location: milwaukee'ish
Vehicle:2023 M340i |
i think its pretty clear from the pics in this thread that an aos and egr delete do nothing to reduce carbon build up.
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01-14-2018, 04:16 PM | #123 |
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Join Date: May 2014
Chapter/Region:
NESIC
Location: The Shire
Vehicle:2015 WRX CWP (sold) 2019 STi CWP |
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01-14-2018, 04:26 PM | #124 |
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South East
Location: SWLA
Vehicle:My BOV goes COVFEFE! |
What about just running a intake and combustion chamber liquid cleaner through the intake, maybe even doing it twice? I've seen them make the intake and valve tops look really clean. I'm not a fan of blowing out clouds and fogging the atmosphere, but some work pretty well. Seems like disassembling and blasting is a more risky process, open to more possibility of mistakes being made. Not saying those valves don't look great after, just seems very involved and risky.
This stuff is what we use when customers want the intake system cleaned: https://www.bgprod.com/catalog/gasol...valve-cleaner/ I used a similar product when working at a dodge dealer in the past, and a couple of times we pulled the manifold off to see the results, which were impressive. At Toyota we also used a similar product. I haven't pulled the intake from a honda after a service yet, but going by how spotless the throttle body is afterwards, I'd venture a guess the rest of the intake tract is a lot cleaner as well. Last edited by 2slofouru; 01-14-2018 at 04:32 PM. |
01-14-2018, 04:31 PM | #125 |
Scooby Specialist
Member#: 459692
Join Date: Dec 2016
Chapter/Region:
South East
Location: Hampton Roads Va
Vehicle:2019 WRX STI silica black |
I've got 10k miles of meth port injection on my motor. Seriously thinking about pulling one of the TGV deletes and sticking a inspection camera in there.
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