Question for Hooker Header Users
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,521
Likes: 0
From: West Islip New York
Question for Hooker Header Users
Hooker has made it to my short list of header manufacturers, along with LPE's new stainless offering.
The question is "Does placing the O2 sensor in the exhaust tube for the #7 cylinder make all that much difference than being in the collector"?
I know that when placed in the collector, it should average the exhaust gases from the entire bank of cylinders, but it practical terms is it significant?
What do you think, and what have you done?
The question is "Does placing the O2 sensor in the exhaust tube for the #7 cylinder make all that much difference than being in the collector"?
I know that when placed in the collector, it should average the exhaust gases from the entire bank of cylinders, but it practical terms is it significant?
What do you think, and what have you done?
Pro
Joined: Aug 2000
Posts: 700
Likes: 1
From: Florida
Re: Question for Hooker Header Users (1MoorTym)
Yes it does matter! Do your self a favor and put it in the collector. If you want to take it to the next level. Replace the O2 sensors with heated O2 sensors.
Hank
Hank
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,521
Likes: 0
From: West Islip New York
Re: Question for Hooker Header Users (Nathan Plemons)
Thats what I thought you guys would say.
How badly does it scew up the coating to weld the bung in the collector?
[Modified by 1MoorTym, 11:27 PM 12/16/2002]
How badly does it scew up the coating to weld the bung in the collector?
[Modified by 1MoorTym, 11:27 PM 12/16/2002]
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: Question for Hooker Header Users (1MoorTym)
Well I've done it, so I'll tell ya' the first thing you need to do is take a dotco & grind the ceramic coating off in the area you will weld. I've got a heli-arc & I could not even start a puddle on top of the stuff at 150 amps. You don't have to grind an area too much larger than the hole. About an 1/8"-1/4" around the hole you will be welding the bung into will do it. You can touch it up with some high heat silver header paint down there & no one will know the difference.
:seeya
:seeya
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: Question for Hooker Header Users (1MoorTym)
It depends on the coating really. I didn't see it done, but I had a bung welded in mine and it didn't mess up the coating at all. The actual weld has some slight surface rust but the header itself is still fine. The only place the coating is screwed up is right under the weld. The coating immediately around the weld is still perfectly intact.
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Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,521
Likes: 0
From: West Islip New York
Re: Question for Hooker Header Users (superlund)
You can touch it up with some high heat silver header paint down there & no one will know the difference. :seeya
Thanks guys....
Racer
Joined: Sep 2000
Posts: 337
Likes: 0
Re: Question for Hooker Header Users (1MoorTym)
What if you put the bung just where the exhaust pipe begins, just after the collector? Then you don’t have to worry about the coating. I suppose you would need a heated O2 sensor then...? :p:
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,521
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From: West Islip New York
Re: Question for Hooker Header Users (Cratzy)
Putting it in there is a thought.......
I'll believe I need a heated sensor regardless, so the extra distance down in the exhaust stream shouldn't matter.
I'll believe I need a heated sensor regardless, so the extra distance down in the exhaust stream shouldn't matter.
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: Question for Hooker Header Users (1MoorTym)
A heated sensor will work fine there, but you will have one more place an exhaust leak could occur prior to the o2 sensor, and the closed loop PCM feedback won't tolerate an exhaust leak prior to the o2 sensors, it causes the o2's to provide a false reading to the PCM. The 02's see a lean Cond & the PCM comps by adding fuel. Just another thing to consider... :)
Pro
Joined: Apr 2000
Posts: 621
Likes: 1
From: Clarkston Mi
Re: Question for Hooker Header Users (superlund)
I am planning to put LT headers on my beast, but not right now. I am going to add them at the end of next year.
Question: What will heated sensors give me in the grand scheme of things? What is the difference? (aside from it being warmer, duh!)
How much do they cost (O2 sensors)? Where do I get them? I will be doing this project long term, next year this time.
Question: What will heated sensors give me in the grand scheme of things? What is the difference? (aside from it being warmer, duh!)
How much do they cost (O2 sensors)? Where do I get them? I will be doing this project long term, next year this time.
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Do this.
Take your old non-heated O2 sensor and screw it into the sensor bung on #7. Weld a new bung into the collector and install the heated ($100) O2 sensor into the new bung. Only hook up the heated one and use the old one as a plug for the whole. :)
Take your old non-heated O2 sensor and screw it into the sensor bung on #7. Weld a new bung into the collector and install the heated ($100) O2 sensor into the new bung. Only hook up the heated one and use the old one as a plug for the whole. :)