WBO2 too close to turbo?
 

Hello,

I have a 1990 with a DIY T3s60 turbo on it. It is actually a used DIY kit that I got super cheap and have refreshed and stuck on. Link Ecu, big isuzu FMIC, etc. I plan on running around 12pis once I get a new diff.

The downpipe is some custom 2.5" creation, and the O2 bung is very close to the turbine exit. (like almost right across from it) I just got an AEM WBO2 (gauge type) and want to hook it up, but am somewhat worried that it will be damaged from the heat.

Anyone have a WBO2 go bad because it was too close to the turbo? I can't see the exhast temp being much different a foot or two down the pipe considering the temperatures and flow rates, and yet there is a warning on the box to locate it further away if possable.

If it does die, anyone know what a new sensor runs for?

Everyone seems to recommend it being at least a foot or so away from the turbine exit. I believe a new sensor runs around $100.

I think that would be too close. While I got no specific errors on my wideband mounted close to the turbo and while I didn't get an error on the wideband the narrowband output made my car run poorly when it got really hot. I think this is because the WB sensor was getting too hot. I since went back to a four wire feeding the ECU and it's a lot better.

I wouldn't take the chance, move it as far from the turbo as you can with in reason.

The plx instructions that came with my wideband said at least 16" or something like that, I took it to a muffler shop and had them weld on a bung about 24" from the turbine.

You want it far from the turbo but pre-cat if you run one.

cap that bung and weld a new one just before the cat.

Yea, this is pretty much the responce I expected. Damn, can't take the lazy way out. Guess I'll have to find a spot back by the cat where the sensor can stick up. Maby run the wires through the shift boot.

exactly.

Innovate has this.

http://www.innovatemotorsports.com/x...cat=250&page=1

but its probably cheeper to move the bung.

Try to mount the sensor with the probe facing down, as water can damage the sensor if it manages to drip inside.

My local exhaust shop charged me $10 to weld a bung on my downpipe before the cat. I figure it to be fair, that might just be under-the-table Tennessee prices though. I figure a Midas or somewhere would do it for $20 though if you had your own bung maybe.

Local (YMMV) Midas hooligans wanted 30 bucks to weld a bung (the balls) Dude down the street, 10 bucks cash. :)