Best place for EGT probe?

[SS_Sean]

Where is the best place for EGT probe placement? Also where can I get a Type K EGT Thermocouple (ungrounded)? I'm setting up for a PL install. I have LC1 WBO2, ready, but am interested in doing this at the same time. Thanks.

 

[TurboDave]

I believe this to be the best place for one, it's mine. Bung or probe, either will work fine here.

CLICK TO ENLARGE:

 

[SGRIM]

Check out cheeseburgers stage II thread of his motor. His look good!!!!

 

[Chuck Leeper]

Percys Electronis, and others sell the probes.
EGT Probes And Senders from Aircraft Spruce
I have a complete, dual probe setup, with extra probes, for sale. PM me if interested.

 

[TurboDave]

Percys Electronis, and others sell the probes.
EGT Probes And Senders from Aircraft Spruce
I have a complete, dual probe setup, with extra probes, for sale. PM me if interested.

Their gages are nice too. Mine is a Westach 700-1700° gage/probe combo.

 

[SS_Sean]

So it looks like I'd drill an appropriate size hole in the header, just below the turbo, and put the probe in. The probe is attached with a band clamp? And you are talking about a #2870, Chuck?

 

[Chuck Leeper]

That looks

So it looks like I'd drill an appropriate size hole in the header, just below the turbo, and put the probe in. The probe is attached with a band clamp? And you are talking about a #2870, Chuck?

like the deal that would work. It doesn't say what the clamp range is, tho. I'd ask B4 buying 1.
If you are using a WB, you can get a sensor plug, and drill/tap it, and use that in place of the NB sensor.

 

[SS_Sean]

once I go wideband how is the computer not going to use the narrow band? I thought I HAD to leave the narrow band in place for the stock ECM to continue to work?

 

[TurboDave]

once I go wideband how is the computer not going to use the narrow band? I thought I HAD to leave the narrow band in place for the stock ECM to continue to work?

Yes the stock ECM will still need the NBO2 sensor input. However, most WBO2's have a second output that can "simulate" a NBO2 signal.
In my experience, after trying the simulated signal, I've gone back to using the on board NBO2 (for monitoring purposes only) (because I run Translator PRO and have full time WB control) because I have found that the simulated NBO2 signal coming from the WBO2 is not even as good as the stock NB. Hard to explain.

 

[SS_Sean]

Thanks for your help, Dave! I'm going to start doing the install this weekend, and appreciate the support. The instructions for this stuff is half-assed. Obviously written by engineers. No offense, Mr. Bailey.

 

[SS_Sean]

Ordered this one up:
Exhaust Gas Temperature EGT Probe with Compression Fitting

Who would sell a fitting that an 1/8NPT would fit into, that would screw into the stock O2 bung?