Guys with Wideband O2 sensors.. In here please
06-16-07 | 07:35 PM
#27
I have an innovate WB, I installed the sensor as recommended by them. Wasn't sure if I need the heat sink, but I felt on HOT North Carolina summer days it could be helpful. Picks show my install, I have an automatic so space is less than a manual. The gauge shot shows the car started at idle, but not fully warmed up as the water temp shows. This was from the install and first start up, the a/f hasn't changed after many months. People who commented on the other heat sink have seen the line drawing of a heat sink reversed from the picture, there was no room to do this on my car. You can see mine DP is wraped and there will be air flow where mine is located.
Terry7
Terry7
06-17-07 | 02:21 AM
#28
Lives on the Forum
iTrader: (8)
Joined: Oct 2003
Posts: 11,576
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From: Morristown, TN (east of Knoxville)
Plug the intake to the airpump and then you'll see pretty close to your true idle a/f ratio.
Everyone complains about wideband sensors overheating and such, but I have always run them in the stock position, right behind the turbo, with no issues. And I have run my cars HARD for months at a time. Once I got the downpipe on my t04E FD so hot that the welds at the vband started to melt and a couple of small holes formed...I also melted the boost controller line which was about 9" from the exhaust manifold. But the wideband was fine and it was 6" behind the turbo.
Everyone complains about wideband sensors overheating and such, but I have always run them in the stock position, right behind the turbo, with no issues. And I have run my cars HARD for months at a time. Once I got the downpipe on my t04E FD so hot that the welds at the vband started to melt and a couple of small holes formed...I also melted the boost controller line which was about 9" from the exhaust manifold. But the wideband was fine and it was 6" behind the turbo.
06-17-07 | 11:00 AM
#29
Rotary Enthusiast
Joined: Jan 2002
Posts: 859
Likes: 0
From: 15143
Eggie,
I've seen a thread about this idea, and I *think* the conclusion was that it helps only a little bit. (btw the bends on the one in that pic appear to put it in direct contact with the down pipe, defeating the purpose of the heat sink. It should be flipped over, but there may not be room...)
I've seen a thread about this idea, and I *think* the conclusion was that it helps only a little bit. (btw the bends on the one in that pic appear to put it in direct contact with the down pipe, defeating the purpose of the heat sink. It should be flipped over, but there may not be room...)
The HS does NOT touch anything apart from the bung/sensor, but it's close. I agree that flipping it would help, but space is an issue. Honestly, I can't remember where the clearance was a problem. It may have been a wrench access issue...
Anyhow, I'm hoping that the ceramic-coated DP will allow the HS to work effectively, even if it's not optimal. The sensor certainly won't run any hotter with the HS in place.
06-17-07 | 11:09 AM
#30
In the book for my wideband it says not less than 12" from the turbos. Optimally (exhaust diameter)*10. For me that's about 30" but i haven't installed mine yet.
For the guys that are less than a foot from the turbos, how often to you replace sensors?
The sensor is supposed to be before the air pump. The air/fuel ratio before the air pump is far more important than after.
For the guys that are less than a foot from the turbos, how often to you replace sensors?
The sensor is supposed to be before the air pump. The air/fuel ratio before the air pump is far more important than after.
06-22-07 | 04:59 PM
#31
Lazyman
Joined: Mar 2006
Posts: 811
Likes: 0
From: Muscle Shoals, Alabama
I have the rx7store (Megan Racing) DP/MP combo and I just ordered the AEM wideband and I plan on putting it in the O2 sensor location on my rx7store (Megan Racing) DP. When I put my DP on I noticed the the O2 sensor location was about a inch further down than on my stock DP. So I guess I'll see just how heat affects things once my AEM arrives.
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