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07-26-2021, 10:27 PM | #1 |
Scooby Specialist
Member#: 50072
Join Date: Dec 2003
Chapter/Region:
South East
Location: TN
Vehicle:2017 STI Blue |
Killer B Hard Inlet
Items on the left are included, items on the right were purchased separately:
Crawford/IAG AOS Options: I received my Killer B hard inlet last week and I'm in no rush to install it since it's F'ing hot outside, so I took the liberty to ensure that I had everything needed to make it work with my Crawford AOS. If you have a Crawford or IAG AOS, you'll likely want fittings with a 1/2" barb. Threads on the inlet are all 1/4" or 3/8" NPT according to the instructions in the "Additional Information" section on the product's page. Some black plastic/nylon fittings would be nice, but this is what I ordered from Amazon to get started with: B07CRWC42C - EDGE INDUSTRIAL 1/2" Hose ID to 1/4" Male NPT MNPT 90 Degree Brass Elbow Fitting Fuel / AIR / Water / Oil / Gas / WOG B07CRTM8P7 - EDGE INDUSTRIAL 1/2" Hose ID to 3/8" Male NPT MNPT 90 Degree Brass Elbow Fitting Fuel / AIR / Water / Oil / Gas / WOG B07CPH3L85 - EDGE INDUSTRIAL 1/2" Hose ID to 1/4" Male NPT MNPT Straight Brass Fitting Fuel/AIR/Water/Oil/Gas/WOG This should give me enough hardware to figure out what I'm going to do during the install process, I'll hunt for pretty fittings later. How well would high-temp spray paint hold up on these brass fittings? Hoping to see other peoples' installs before I go in. |
07-27-2021, 12:23 PM | #2 |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
Nice looking part, I'm looking forward to reading people's thoughts and install notes.
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07-27-2021, 12:25 PM | #3 |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
Just got mine as well. Got it with a 3" and 2.4" coupler so I can use it on my 20G-XTR now and GTX3576 G2 later.
Love the way killer B made it modular. |
07-27-2021, 12:53 PM | #4 |
Scooby Specialist
Member#: 450713
Join Date: Jul 2016
Chapter/Region:
Tri-State
Location: Super bowl LII champs
Vehicle:2017 WRX Stage 3ish world rally blue |
Do you actually expect any noticable gains from this part? or is it just for reliability and high hp builds mostly?
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07-27-2021, 12:55 PM | #5 | |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
Quote:
And going with metal over silicone allows the inlet to avoid collapsing, and it allows the walls of the inlet to be thinner, allowing for more flow via a larger cross-sectional area. And thats ignoring that the OEM inlet WILL rip on you at some point... Here is Killer B's testing against the OEM inlet with Bren tuning on a Mustang Dyno: Last edited by K3rm1tth3fr0g; 07-28-2021 at 01:36 PM. |
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07-27-2021, 05:56 PM | #6 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
What was the purpose of buying the other elbows? The killer b is supposed to fit into an oem system and the aos is supposed to fit an oem intake isn't it? Just curious because I have both but neither is installed yet.
Last edited by Killfire; 07-27-2021 at 06:47 PM. |
07-28-2021, 01:16 PM | #7 | |
Scooby Specialist
Member#: 50072
Join Date: Dec 2003
Chapter/Region:
South East
Location: TN
Vehicle:2017 STI Blue |
Quote:
I think the included fittings work with most of the stock hoses and the Killer B AOS, however, it does not include the fitting that would connect to the inlet near the turbo, so it requires at least one additional fitting to work as a completely stock replacement. The IAG and Crawford AOS both require two connections to the inlet, since those AOSes use 1/2" hose to the inlet, you might want to consider ensuring you have the necessary fitting unless you're fine with using an assortment of hose sizes and union/reducer connections to make everything work. |
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07-28-2021, 02:07 PM | #8 | |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
Quote:
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08-06-2021, 04:26 PM | #9 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
Just a heads up, be very careful with the brass going into aluminum. Even with teflon tape my fitting galled up and ripped out some threads of the inlet when I tried to remove it. I just purchased some plastic fittings that will be here tomorrow so we'll see how that turns out instead.
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08-06-2021, 05:19 PM | #10 |
Scooby Specialist
Member#: 447898
Join Date: May 2016
Chapter/Region:
BAIC
Location: Sacramento, CA
Vehicle:2022 Tesla M3P 2019 STI CWP |
I have this sitting in my garage waiting to be installed as well.. way too hot in Califronia right now to be installing this in my garage
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08-06-2021, 06:38 PM | #11 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
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08-06-2021, 06:41 PM | #12 |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
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08-06-2021, 07:48 PM | #13 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
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08-07-2021, 08:28 AM | #14 | |
Scooby Specialist
Member#: 50072
Join Date: Dec 2003
Chapter/Region:
South East
Location: TN
Vehicle:2017 STI Blue |
Quote:
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08-07-2021, 10:52 AM | #15 | |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
Quote:
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08-07-2021, 12:25 PM | #16 | |
NASIOC Vendor
Member#: 198281
Join Date: Dec 2008
Chapter/Region:
MAIC
Location: Virginia
Vehicle:2005 WRX/STi WRB of course |
Quote:
NPT threads DO need sealant or teflon tape because the root of the tread is square, leaving a gap, even when tight. NPTF (Fuel) can be tightened without sealant or teflon because the root of the thread is radiused, so there's no air gap when tight. <---- fastener dork |
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08-07-2021, 05:19 PM | #17 |
Scooby Specialist
Member#: 50072
Join Date: Dec 2003
Chapter/Region:
South East
Location: TN
Vehicle:2017 STI Blue |
Thanks for the thread explanation.
I went down to the garage and inserted and removed all of my fittings a few times and they do seem to go in far enough when finger-threaded. The starting thread on one of my Amazon fittings had some roughness in it that might have affected its ability to smoothly thread in, so I cleaned that up and it's looking good. Pardon me, I'm thread shy. I don't wanna tear this up. Was considering installing this week, but I got stuck with on-call again. |
08-13-2021, 10:22 AM | #18 |
Scooby Newbie
Member#: 524797
Join Date: Jun 2021
Location: Down Under
Vehicle:2010 XT Forester |
Appears there are issues with the 3” inlet forming a golf ball sized collapse when installed. Hopefully the smaller silicone joiner don’t suffer the same fate. Last edited by tmp042; 08-22-2021 at 09:21 AM. |
08-13-2021, 11:52 AM | #19 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
My OEM size looked fine. I'll take a look again when I install everything back on. I had a breather hose spit on me and spit oil everywhere so it its currently apart again.
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08-13-2021, 12:38 PM | #20 |
Scooby Newbie
Member#: 524797
Join Date: Jun 2021
Location: Down Under
Vehicle:2010 XT Forester |
Killfire, Do you have a photo from above of the Killer B intake installed onto the compressor housing. Curious to see how it fits around the TGV.
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08-13-2021, 02:40 PM | #21 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
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08-13-2021, 12:04 PM | #22 |
Scooby Specialist
Member#: 491095
Join Date: Sep 2018
Chapter/Region:
SWIC
Location: New Mexico
Vehicle:2009 STi Blue Blue |
is it just me or can you loosen the clamps to let it onto both the turbo and the inlet more?
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08-19-2021, 09:43 AM | #23 |
NASIOC Vendor
Member#: 198281
Join Date: Dec 2008
Chapter/Region:
MAIC
Location: Virginia
Vehicle:2005 WRX/STi WRB of course |
The coupler fitment is the most challenging part of the install. It's going to take several trial and trim, and trial and clock fits to get it right. The is a part of the installation where patience is your friend because you can only trim off so much before you're in trouble.
If you need another coupler, we do offer them individually. |
08-19-2021, 03:09 PM | #24 |
Scooby Newbie
Member#: 420364
Join Date: May 2015
Location: Houston TX
Vehicle:2013 STI Hatchback Black |
The first picture was taken before any trimming done and was just doing a test fit.
The second picture is everything installed and running. It does touch on the corner of the IM and TGV and I couldn't figure out a way to prevent that. I talked to Killer B and they said it shouldn't be a problem. I do have IAG TGV deletes installed so the stock TGV housing may fit differently. |
08-20-2021, 04:12 PM | #25 |
Scooby Specialist
Member#: 50072
Join Date: Dec 2003
Chapter/Region:
South East
Location: TN
Vehicle:2017 STI Blue |
I'd buy a JDM long runner intake manifold if it worked with a DBW throttle body. That TGV bolt area is the most annoying part of installing an inlet.
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