Stillen HFC vs. BERK HFC

semtex · 04-14-2009, 04:44 PM

Quote:

Originally Posted by axio

How exactly do you intend to fix it? I ordered the Berk cats, and like you, i'm not too concerned about a CEL. But if it shows up, is the fix something as simple as removing the cat, and then inspecting it and cleaning it out?

Forgive me if this is incorrect, but could the CEL be showing up on these Berk cats because of carbon build-up in that O2 sensor extender tube? could it be something as simple as removing the O2 sensor and then cleaning any carbon build-up? Again, I have no idea, just throwing out some possibilities on what could be causing it.

Dude, review the thread. I already explained the fix a couple of pages back. I even included a link to a DIY with pics.

Edit: Here's the link to the exact post. It's called the non-fouler method. You can also just stuff some steel wool into the port and apparently that works as well. Hope this helps! (Actually, I hope your HFCs never throw a CEL to require one of these fixes to begin with!) Stillen HFC vs. BERK HFC

axio · 04-14-2009, 04:51 PM

Quote:

Originally Posted by semtex

Dude, review the thread. I already explained the fix a couple of pages back. I even included a link to a DIY with pics.

Edit: Here's the link to the exact post. It's called the non-fouler method. You can also just stuff some steel wool into the port and apparently that works as well. Hope this helps! (Actually, I hope your HFCs never throw a CEL to require one of these fixes to begin with!) Stillen HFC vs. BERK HFC

Ahhhh woops, my bad. Thanks again, great info on this thread

I hope you never throw any as well, but aparantly you know how to fix em in case they do!

semtex · 04-14-2009, 05:14 PM

Quote:

Originally Posted by axio

Ahhhh woops, my bad. Thanks again, great info on this thread

I hope you never throw any as well, but aparantly you know how to fix em in case they do!

You said you ordered them, right? As in...you haven't installed them yet? If you haven't installed them yet, then you might want to go ahead and stuff some stainless steel wool into those ports right from the get-go, prior to installing. Then you're covered for sure and don't have to worry about getting a CEL in the future. That's what I'd have done had it occurred to me before I installed them.

axio · 04-14-2009, 05:24 PM

Quote:

Originally Posted by semtex

You said you ordered them, right? As in...you haven't installed them yet? If you haven't installed them yet, then you might want to go ahead and stuff some stainless steel wool into those ports right from the get-go, prior to installing. Then you're covered for sure and don't have to worry about getting a CEL in the future. That's what I'd have done had it occurred to me before I installed them.

Yeah, they're currently on backorder, but when they come in, that's a good idea. I'm assuming there's some kind of small screen or catch inside the port so the steel wool won't slip out of the port and into the rest of the cat?

Also, any idea what kind of steel wool? Just any stainless steel wool from Home Depot would work?

RCZ · 04-14-2009, 05:30 PM

No you have to get super uber special stainless steel wool. Only pure stainlessanium steel nitrate with mega ferro-magnetic qualities will help in the atomization of the A and P particles within the C02 condensation patterns. Without it, not only will you void your warranty, but you will also turn air passing through the exhaust into prancing miniature unicorns. Unicorns = rice.

Yes...normal SS wool from home depot...

semtex · 04-14-2009, 05:31 PM

Quote:

Originally Posted by axio

Yeah, they're currently on backorder, but when they come in, that's a good idea. I'm assuming there's some kind of small screen or catch inside the port so the steel wool won't slip out of the port and into the rest of the cat?

Also, any idea what kind of steel wool? Just any stainless steel wool from Home Depot would work?

I believe so, yes. But I've never actually done this myself. I've only done the non-foulers. The steel wool suggestion came from NIZMOZ a few pages back, so he'd be a better person to ask:

Quote:

Originally Posted by NIZMOZ

Put SS Wool in the non-fouler holes and then put your O2s back in and this will resolve the issue. Brilo will also work.

Berk will send it for free if you call them. (Great customer service!)

semtex · 04-14-2009, 05:33 PM

Quote:

Originally Posted by RCZ

No you have to get super uber special stainless steel wool. Only pure stainlessanium steel nitrate with mega ferro-magnetic qualities will help in the atomization of the A and P particles within the C02 condensation patterns.

Yes...normal SS wool from home depot...

LOL. You are such a smarta$$. :stfu:

In all seriousness though, RCZ do you know if there's any chance of the steel wool becoming dislodged and falling into the exhaust?

axio · 04-14-2009, 05:35 PM

Haha, awesome, thanks for the input guys. Just added +Rep for the three of you (RCZ, semtex & NismoZ)

semtex · 04-14-2009, 05:43 PM

Axio, I was just looking at a photo of the HFCs. That extension tube is actually pretty small/thin. If you stuff a small wad of SS wool in there, I doubt it's going to go anywhere. There just isn't enough space for it to move around. What I'd do is stuff the wool in just a little, then allow the O2 sensor to push it the rest of the way in as it's being tightened (vs. pushing it in with your finger or a screwdriver).

RCZ · 04-14-2009, 05:47 PM

aww you missed the unicorns part.

I would assume that is a possibility. I assume the non-foulers purpose is to take the sensor out of the direct flow of the exhaust gas, which would cause it to miss read and trigger the cel? I am not sure about this, I have always just assumed this was the reasoning. I also assume the steel wool is there to create even more of a barrier (yet allow it to pass enough gas through to the sensor) while not melting under the high temperatures of the exhaust gas.

Right?

This is the reason why Berk and others have decided to create out-of-flow adapters for the o2 sensors (built in non-foulers). This is the reason why I am assuming Stillen's HFC will have this feature as well, perhaps evolved in one way or another to keep it from affecting flow.

Careful with the O2 sensor Semtex, it is very easy to damage them, they are sensitive.

semtex · 04-14-2009, 05:54 PM

Quote:

Originally Posted by RCZ

aww you missed the unicorns part.

I would assume that is a possibility. I assume the non-foulers purpose is to take the sensor out of the direct flow of the exhaust gas, which would cause it to miss read and trigger the cel? I am not sure about this, I have always just assumed this was the reasoning. I also assume the steel wool is there to create even more of a barrier (yet allow it to pass enough gas through to the sensor) while not melting under the high temperatures of the exhaust gas.

Right?

This is the reason why Berk and others have decided to create out-of-flow adapters for the o2 sensors (built in non-foulers). This is the reason why I am assuming Stillen's HFC will have this feature as well, perhaps evolved in one way or another to keep it from affecting flow.

Careful with the O2 sensor Semtex, it is very easy to damage them, they are sensitive.

Stillen's HFC doesn't have this feature. Have you seen them yet? They're up on their website with pics. Available for sale. That's how this whole side-discussion got started -- I pointed out the lack of this 'feature' on the Stillen HFCs, which means they'll need anti-foulers. Some folks chimed in and said that even with Berk's built-in extensions, you still might get CELs, hence the steel wool.

NIZMOZ · 04-14-2009, 05:57 PM

RCZ, correct. Non-foulers are there exactly as you said, to move the sensor out of the flow to prevent them from triggering a light. Some cars are more sensitive than others and it will trip faster. So the SS wool comes in handy in that case.

RCZ · 04-14-2009, 06:01 PM

Quote:

Originally Posted by Kyle@STILLEN

...It's pretty much a gaurantee that the hi-flow cats will set off check engine lights. We are currently working on a way to defeat that though and hope to have that solution soon. Our engineers are testing two different ways to fix the CEL issue. We would like to stay away from tricking the ECU if possible...

Hence my comment semtex.

wstar · 04-14-2009, 06:11 PM

Quote:

Originally Posted by RCZ

Careful with the O2 sensor Semtex, it is very easy to damage them, they are sensitive.

And expensive.

ChrisSlicks · 04-14-2009, 06:37 PM

Quote:

Originally Posted by RCZ

Careful with the O2 sensor Semtex, it is very easy to damage them, they are sensitive.

Quote:

Originally Posted by wstar

And expensive.

Apparently O2 sensors are female!

04-14-2009, 05:30 PM	#65 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1118	No you have to get super uber special stainless steel wool. Only pure stainlessanium steel nitrate with mega ferro-magnetic qualities will help in the atomization of the A and P particles within the C02 condensation patterns. Without it, not only will you void your warranty, but you will also turn air passing through the exhaust into prancing miniature unicorns. Unicorns = rice. Yes...normal SS wool from home depot... Last edited by RCZ; 04-14-2009 at 05:33 PM.

04-14-2009, 05:43 PM	#69 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 32	Axio, I was just looking at a photo of the HFCs. That extension tube is actually pretty small/thin. If you stuff a small wad of SS wool in there, I doubt it's going to go anywhere. There just isn't enough space for it to move around. What I'd do is stuff the wool in just a little, then allow the O2 sensor to push it the rest of the way in as it's being tightened (vs. pushing it in with your finger or a screwdriver). __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

04-14-2009, 05:57 PM	#72 (permalink)
NIZMOZ Track Member Join Date: Nov 2008 Location: San Antonio, TX Posts: 634 Drives: 07 NISMO 350Z SA M6 Rep Power: 491	RCZ, correct. Non-foulers are there exactly as you said, to move the sensor out of the flow to prevent them from triggering a light. Some cars are more sensitive than others and it will trip faster. So the SS wool comes in handy in that case. __________________ SOLD: 2007 NISMO 350Z #0044 Silver Alloy New DD: 2010 Titan Pro4X CC

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04-14-2009, 05:35 PM	#68 (permalink)
axio Enthusiast Member Join Date: Jan 2009 Location: SF Bay Area, CA Posts: 271 Drives: '09 370Z Rep Power: 16	Haha, awesome, thanks for the input guys. Just added +Rep for the three of you (RCZ, semtex & NismoZ)

04-14-2009, 05:47 PM	#70 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1118	aww you missed the unicorns part. I would assume that is a possibility. I assume the non-foulers purpose is to take the sensor out of the direct flow of the exhaust gas, which would cause it to miss read and trigger the cel? I am not sure about this, I have always just assumed this was the reasoning. I also assume the steel wool is there to create even more of a barrier (yet allow it to pass enough gas through to the sensor) while not melting under the high temperatures of the exhaust gas. Right? This is the reason why Berk and others have decided to create out-of-flow adapters for the o2 sensors (built in non-foulers). This is the reason why I am assuming Stillen's HFC will have this feature as well, perhaps evolved in one way or another to keep it from affecting flow. Careful with the O2 sensor Semtex, it is very easy to damage them, they are sensitive.