Help with EGT Probe
 

I posted this in miata.net. I basically just need advice about where to find the fitting and any pointers of obvious stuff I am forgetting. I have to pick up an 11/32 drill bit at lowes for example. Also, advice on whether I should tap my new turbine (like I did before) or tap the manifold instead?

Anyway, info:
I am switching to a new turbo and the EGT fitting is on the turbine instead of the manifold. I want to install a new probe fitting on the manifold after the switch but I am having trouble finding the fitting.

I need the stainless 1/8th NPT screw-in fitting that the autometer probe uses. Anyone know where to find one? Also, anything I should be cautious of? I assume I just drill it and tap it for 1/8th NPT and then put in some high temp anti-seize. Is this adequate? I'm not super experienced at doing threads.

This is a JGS manifold.

Drill the hole
Tap the hole slowly, pulling it back out after a few turns to relieve some chips
Once tapped, clean manifold out thouroughly and insert your 1/8-27 NPT fitting.
I would use anti seize along with some high temp permatex if you are worried about it sealing.
As for the fitting, I would call around to local hot rod shops, maybe rev2red or wideopentuning can help source the part for you.
-Michael-

Yeah that is the gay thing about tallahassee. Absolutely no performance anything. Back in Tampa I could get all my fabrication done by this guy in St Pete, get mazda specific stuff (tranny replacement etc) done by Jeff and generally have access to all the parts I wanted. Up here there is jack shit. Not even a working dyno (there is one but the guys dont know how to operate it and they blew up a couple of cars apparently).

Try a plumbing supply for the fitting. The Autometer fitting into the manifold will stay tight, but I found the locking nut against the ferrule loosens from vibration. I put a small worm clamp across the flats of both to keep it on.

Yup. Welcome to Tallahassee ;)

You could try Fastenal over on Appleyard Dr. or that hydraulic supply place in that neck of the woods...who's name I can't remember at the moment...off Pensacola St.

Directions from Gainesville to Tallahassee:

Go North 'till you smell it.

Go West 'till you step in it.

(Sorry, couldn't resist.)

-UF Class of '99.

Nice ;)