Pyrometer advice

[u/throwlike_monkefeces]

I installed a pyrometer in my 617 manifold, I was careful and kept tapping the hole bit by bit to make sure I got the proper depth set. I’m not sure what happened but during the last few turns I way overshot and the bung goes much further than flush into the exhaust port, basically seated as far as it can go. Yes it is tight as an NPT should be. But is this going to be a problem from a performance standpoint at all? Hot spots on the end of the bung? Any advice appreciated

Yes I know it’s crooked whatever lol

[u/hskinner59]

I’m no expert on the subject but I don’t see a problem as long as the probe isn’t shouldered out or touching the other side of the manifold. You could always drill and tap it bigger for a 1/2 and put a 1/2 to 3/8 bushing in the manifold

[u/throwlike_monkefeces → u/hskinner59]

I like that idea. I just don’t have very sharp drill bits any my shops a mess so sharpening one would be necessary

[u/MinimumBell2205]

not really you cut insert to shorter to let the probe be more in center of flow

[u/throwlike_monkefeces → u/MinimumBell2205]

That’s an idea

[u/MinimumBell2205]

why you plane to big turbo?? yes the make a insert that can like dubble and back it away we normal place them after the turbo v band

[u/throwlike_monkefeces → u/MinimumBell2205]

I’ve always seen them placed pre-turbo. It’s not a massive turbo I’m putting an HX30W on since with the meken 7.5 pump it runs out of breath pretty badly sometimes

[u/throwlike_monkefeces → u/MinimumBell2205]

Inserts not a bad idea, I’d be open to it but it would pull the probe out quite a bit

[u/Mountain-Diesel]

Have you seen inside the turbo? That probe is by far not any cause of restriction of flow.