Temp Probe Placement On Manifolds

[75coupe]

Im going to get my front facing inlet manifold and exhaust manifold ceramic coated and the exhaust manifold port matched and cleaned up.

Where would be the best places to mount temp probes on both manifolds to measure before and after temp changes, dont really want to run temp probes on each runner.

I have a mate that is doing the coatings and port work and wants to show the benefits of the work done.

Real world results of both gas temp and engine bay temp of the coatings and port matching. Plus of ofcourse the cosmetic improvement.

[75coupe]

We will probably go further and coat intercooler core and piping, it will all be done in stages to show changes for each part mod.

[GTSBoy]

I put my ex temp probe into the turbo housing, just near the flange. Easier than manifold given manifold was on car but turbo was off. In your case, with manifold off car, other side of matching flange would be equivalent. Note that any sort of divided (split pulse) manifold, such as the stocker is, makes it hard to get a single measure of the whole flow. That's another reason mine is on the turbo.

[75coupe]

I do have what may be a sensor port on the hks exhaust housing, would this be for a temp sensor? And will a jaycay temp sensor hold up to the temperatures or will it just cause problems?

Will the sensor there give a good indication of the benefits of hpc coating and port flowing?

[Ben C34]

What would port matching do to the temps anyway?

[Ben C34]

Jay car sensor would be no good. You can get eBay exhaust temp gauges cheap.

[75coupe]

I would of thought that the manifold wouldnt get as hot if it were ported and flowed as edges that exist and catch the hot gas get hot, so if these edges were not there the hot gas would not affect the manifold metal as much, albeit fairly minimal

[75coupe]

You feel the jaycar temp sensor would be no good, because it wont stand up to the heat? They say its for up to 1200 degrees?

[GTSBoy]

If I were going to buy an exhaust pyrometer probe, on its own (as in, not part of a package with the gauge or whatever) then I would go to IPA (Industrial Thermocouples Australia) and just get one made up. You can get a type k thermocouple in a 3mm inconel sheath, sheath bent 90° or straight, whatever length of flexible tail, braided or in silicone, whatever plug you want or bare wires, for bugger all cash. Top quality industrial grade stuff rather than the pot luck you might get from eBay.

The Jaycar TC would be OK, but why mess about when proper stuff is not much more?

[75coupe]

Ok that sounds good, i was a bit skeptical of the jaycar sensor, last thing i would want is the sensor burning up in the turbo