DIY Defouler - Page 4

02civicsi · 03-01-2008, 09:56 PM

The 02 sensor will not fit into the defouler if you don't drill it out. Now you can try to drill just enough so that it fits but not all the way through like soxfan 143 said.

PR_S14 · 03-02-2008, 01:50 AM

I tried the "don't drill all the way through" thing when I removed one of the defoulers in an attempt to get more clearance.

Got a CEL within 10 miles of driving and the sensor still hits the chassis on startup and when reversing. It sucks.

Once again, I have a Vibrant RH so the clearance issue may not apply to the smaller DCRH. But I can almost guarantee the single defouler not drilled through method won't work.

02civicsi · 03-02-2008, 02:47 AM

Not the single but still the stacked but "don't drill all the way through" the one that the 02 sensor goes into.

onefastsi · 03-02-2008, 07:15 AM

Quote:

Originally Posted by BRSi

Subscribed. I really don't feel like paying almost $50 for this, so if the cheap ones work

Cheap ones work...I did one before...but how will it fit on our cars now? That was the question! So...a $50 insurance policy? well worth it

soxfan143 · 03-02-2008, 01:44 PM

I don't have any pics of this. Sorrry guys. The header was delivered directly to my shop a day earlier than expected so naturally I had to installl it right away and I didn'y have the camera.

The washer thrick won't work. You would need way too many and there wouldn't bee enough of the sensor threaded into the defouler. And it would push it out too far and you would have clearance issues. Especially with the Vibrant and BC headers because they are larger in diameter.

So using only one defouler drilled out like mine will throw a CEL? So you have to use both of them? That sucks. I still used both. I just did it like that so I would have a little extra protection against throwing a CEL.

And you have to drill it almost all the way to get it to not bottom out the O2 sensor on the defouler. And if you have to, use an extra spark plug crush washer on the O2 sensor if you're worried about drilling to close and going through. They seal really well. I used one on the Defouler that screwed into the header. But I just reused the one that was on my O2 sensor. The only downfall to using the washer will be more clearance issues. So the more you drill the better. I have about a half a millimeter of space between my O2 sensorand the defouler. It's a really toght fit but it works. I have a little over 375 miles without a CEL.

BRSi · 03-02-2008, 08:01 PM

We need more reasonably priced angled ones ... :O

02civicsi · 03-02-2008, 08:19 PM

Onefastsi is happy to pay $50 for angled de-fouler.

Vinc84 · 03-03-2008, 06:29 PM

Hm...I have a SSR RH, should I be using an angled or straight defouler? I don't have a defouler at the moment, so anyone know?

jaybirn · 03-03-2008, 06:57 PM

I'm not too familiar with the SSR header but if it's anything close to the Vibrant you will ultimately want an angled one. I just installed my Vibrant yesterday and even with only one defouler on there are clearance issues. I don't know how people can fit two...that would just be crazy.

Clearance aside (my setup right now isn't great...but it works), I am waiting to see if I throw a code before I shell out $40+ for an angled defouler.

Vinc84 · 03-03-2008, 07:15 PM

So an angled defouler should fit I suppose - but $40 for an angled one v.s. ony a few bucks for a cheap DIY defouler, sigh - I guess I have no choice.

Quote:

Originally Posted by jaybirn

I'm not too familiar with the SSR header but if it's anything close to the Vibrant you will ultimately want an angled one. I just installed my Vibrant yesterday and even with only one defouler on there are clearance issues. I don't know how people can fit two...that would just be crazy.

Clearance aside (my setup right now isn't great...but it works), I am waiting to see if I throw a code before I shell out $40+ for an angled defouler.

soxfan143 · 03-03-2008, 09:01 PM

If you're running a Vibrant with HFC you should be able to get away with only one defouler. But if you're running the full race header you will most likely need both of them which won't fit without it hitting the body.

Vinc84 · 03-03-2008, 09:41 PM

I'm running Six Sigma Racing header, it's catless so I'm guessing it's comparable to BCRH, DCRH & Vibrant w/o cat...

Quote:

Originally Posted by soxfan143

If you're running a Vibrant with HFC you should be able to get away with only one defouler. But if you're running the full race header you will most likely need both of them which won't fit without it hitting the body.

soxfan143 · 03-03-2008, 09:55 PM

If you're running catless you will definately nned both defoulers. What's the pipe diameter at the O2 sensor? If it's 2.5 inches you might get some contact with these defoulers. The larger diameter headers are having problems with the end of the sensor hitting the body when shifting and in reverse. The DC header is only 2 inches so it has more room there. That's why people are buying those angled defoulers.

jaybirn · 03-03-2008, 09:58 PM

Which defouler you need, from what I've read, depends on the header. The DCRH is a smaller diameter than the other ones so the use of a DIY defouler works (I think). With the Vibrant (and probably the Buddy Club) there is definitely a clearance issue. If your header is more like these you will have a problem and since you are catless you are almost certain not to be able to use just one defouler.

Vinc84 · 03-03-2008, 10:11 PM

The pipe diameter at the O2 sensor is indeed 2.5 inches. By both you mean one stacked on another? Would an angled defouler have any problems then?

Quote:

Originally Posted by soxfan143

If you're running catless you will definately nned both defoulers. What's the pipe diameter at the O2 sensor? If it's 2.5 inches you might get some contact with these defoulers. The larger diameter headers are having problems with the end of the sensor hitting the body when shifting and in reverse. The DC header is only 2 inches so it has more room there. That's why people are buying those angled defoulers.

It's 2.5 inches where the defouler is at, and I believe the O2 sensor hole is at about 10 o'clock or even 2 o'clock...facing upwards either to the left (10 o'clock) or to the right (2 o'clock)...

Quote:

Originally Posted by jaybirn

Which defouler you need, from what I've read, depends on the header. The DCRH is a smaller diameter than the other ones so the use of a DIY defouler works (I think). With the Vibrant (and probably the Buddy Club) there is definitely a clearance issue. If your header is more like these you will have a problem and since you are catless you are almost certain not to be able to use just one defouler.

Here are some pictures of the header:

Disregard the miscellaneous nuts and bolts, they're just extras.

jaybirn · 03-03-2008, 10:18 PM

Considering it's the same size as the Vibrant and is angled up (my Vibrant is rougly 10 o'clock on the driver's side) you will need an angled defouler. A single Help defouler won't be enough deflection running catless. I barely fit one of them on my setup....and two would have been impossible.

Vinc84 · 03-03-2008, 10:22 PM

Yeah I realized that I can move it to either 10 o'clock or 2 o'clock - whichever one being the best postition. So are you using an angled defouler then or just one straight defouler?

Quote:

Originally Posted by jaybirn

Considering it's the same size as the Vibrant and is angled up (my Vibrant is rougly 10 o'clock on the driver's side) you will need an angled defouler. A single Help defouler won't be enough deflection running catless. I barely fit one of them on my setup....and two would have been impossible.

onefastsi · 03-03-2008, 10:33 PM

Quote:

Originally Posted by 02civicsi

Onefastsi is happy to pay $50 for angled de-fouler.

Happy? no, never happy paying for anything! but...gotta do what you gotta do! Pay to play!

jaybirn · 03-03-2008, 10:34 PM

I am using one (instead of two) of the Help defoulers and the clearance is pretty much nonexistent. Since it fits I am waiting to see if I throw a code or not. If I do I'll be buying an angled one.

Vinc84 · 03-03-2008, 10:40 PM

Quote:

Originally Posted by jaybirn

I am using one (instead of two) of the Help defoulers and the clearance is pretty much nonexistent. Since it fits I am waiting to see if I throw a code or not. If I do I'll be buying an angled one.

What header are you running?

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03-01-2008, 09:56 PM	#61 (permalink)
02civicsi Senior Member Join Date: Jan 2007 Location: Longwood, FL Posts: 6,481 I am the Juggernaut!!! iTrader: 17 / 100%	The 02 sensor will not fit into the defouler if you don't drill it out. Now you can try to drill just enough so that it fits but not all the way through like soxfan 143 said.

03-02-2008, 01:50 AM	#62 (permalink)
PR_S14 Senior Member Join Date: Dec 2006 Posts: 508 Freddy iTrader: 1 / 100%	I tried the "don't drill all the way through" thing when I removed one of the defoulers in an attempt to get more clearance. Got a CEL within 10 miles of driving and the sensor still hits the chassis on startup and when reversing. It sucks. Once again, I have a Vibrant RH so the clearance issue may not apply to the smaller DCRH. But I can almost guarantee the single defouler not drilled through method won't work.

03-02-2008, 02:47 AM	#63 (permalink)
02civicsi Senior Member Join Date: Jan 2007 Location: Longwood, FL Posts: 6,481 I am the Juggernaut!!! iTrader: 17 / 100%	Not the single but still the stacked but "don't drill all the way through" the one that the 02 sensor goes into.

03-02-2008, 01:44 PM	#65 (permalink)
soxfan143 Senior Member Join Date: Nov 2007 Location: Lynnfield, MA Age: 34 Posts: 2,036 Mike iTrader: 2 / 100%	I don't have any pics of this. Sorrry guys. The header was delivered directly to my shop a day earlier than expected so naturally I had to installl it right away and I didn'y have the camera. The washer thrick won't work. You would need way too many and there wouldn't bee enough of the sensor threaded into the defouler. And it would push it out too far and you would have clearance issues. Especially with the Vibrant and BC headers because they are larger in diameter. So using only one defouler drilled out like mine will throw a CEL? So you have to use both of them? That sucks. I still used both. I just did it like that so I would have a little extra protection against throwing a CEL. And you have to drill it almost all the way to get it to not bottom out the O2 sensor on the defouler. And if you have to, use an extra spark plug crush washer on the O2 sensor if you're worried about drilling to close and going through. They seal really well. I used one on the Defouler that screwed into the header. But I just reused the one that was on my O2 sensor. The only downfall to using the washer will be more clearance issues. So the more you drill the better. I have about a half a millimeter of space between my O2 sensorand the defouler. It's a really toght fit but it works. I have a little over 375 miles without a CEL.

03-02-2008, 08:01 PM	#66 (permalink)
BRSi Senior Member Join Date: Jan 2008 Location: SP Posts: 175 iTrader: 0 / 0%	We need more reasonably priced angled ones ... :O

03-02-2008, 08:19 PM	#67 (permalink)
02civicsi Senior Member Join Date: Jan 2007 Location: Longwood, FL Posts: 6,481 I am the Juggernaut!!! iTrader: 17 / 100%	Onefastsi is happy to pay $50 for angled de-fouler.

03-03-2008, 06:29 PM	#68 (permalink)
Vinc84 Senior Member Join Date: Jan 2008 Location: 301 Posts: 482 Vin¢ iTrader: 8 / 100%	Hm...I have a SSR RH, should I be using an angled or straight defouler? I don't have a defouler at the moment, so anyone know?

03-03-2008, 06:57 PM	#69 (permalink)
jaybirn Member Join Date: Jul 2007 Location: Palmdale, CA Age: 23 Posts: 37 iTrader: 0 / 0%	I'm not too familiar with the SSR header but if it's anything close to the Vibrant you will ultimately want an angled one. I just installed my Vibrant yesterday and even with only one defouler on there are clearance issues. I don't know how people can fit two...that would just be crazy. Clearance aside (my setup right now isn't great...but it works), I am waiting to see if I throw a code before I shell out $40+ for an angled defouler.

03-03-2008, 09:01 PM	#71 (permalink)
soxfan143 Senior Member Join Date: Nov 2007 Location: Lynnfield, MA Age: 34 Posts: 2,036 Mike iTrader: 2 / 100%	If you're running a Vibrant with HFC you should be able to get away with only one defouler. But if you're running the full race header you will most likely need both of them which won't fit without it hitting the body.

03-03-2008, 09:55 PM	#73 (permalink)
soxfan143 Senior Member Join Date: Nov 2007 Location: Lynnfield, MA Age: 34 Posts: 2,036 Mike iTrader: 2 / 100%	If you're running catless you will definately nned both defoulers. What's the pipe diameter at the O2 sensor? If it's 2.5 inches you might get some contact with these defoulers. The larger diameter headers are having problems with the end of the sensor hitting the body when shifting and in reverse. The DC header is only 2 inches so it has more room there. That's why people are buying those angled defoulers.

03-03-2008, 09:58 PM	#74 (permalink)
jaybirn Member Join Date: Jul 2007 Location: Palmdale, CA Age: 23 Posts: 37 iTrader: 0 / 0%	Which defouler you need, from what I've read, depends on the header. The DCRH is a smaller diameter than the other ones so the use of a DIY defouler works (I think). With the Vibrant (and probably the Buddy Club) there is definitely a clearance issue. If your header is more like these you will have a problem and since you are catless you are almost certain not to be able to use just one defouler.

03-03-2008, 10:18 PM	#76 (permalink)
jaybirn Member Join Date: Jul 2007 Location: Palmdale, CA Age: 23 Posts: 37 iTrader: 0 / 0%	Considering it's the same size as the Vibrant and is angled up (my Vibrant is rougly 10 o'clock on the driver's side) you will need an angled defouler. A single Help defouler won't be enough deflection running catless. I barely fit one of them on my setup....and two would have been impossible.

03-03-2008, 10:34 PM	#79 (permalink)
jaybirn Member Join Date: Jul 2007 Location: Palmdale, CA Age: 23 Posts: 37 iTrader: 0 / 0%	I am using one (instead of two) of the Help defoulers and the clearance is pretty much nonexistent. Since it fits I am waiting to see if I throw a code or not. If I do I'll be buying an angled one.