Temperature indicators

[Adam43]

I am thinking of buying some of those temperature strips so assess the temperature of components of a new race car. New car, I thought I'd try something new. I was thinking about putting these on the brakes. Of course who never measure the operating temperature because you have to return to the pits, but ignoring that for a while.

Where would you put the strip? On the caliper, but out of any air flow? What temperature would you expect it to show?

[Dave Brand]

I'd suggest using heat-sensitive paint rather than stick-on strips. You can apply it to the pads & the disc, which will give you the most useful information in terms of which pads will best suit your application.

As for temperatures, if you're really trying you can get up to red heat!

[thebear]

Originally Posted by Dave Brand

I'd suggest using heat-sensitive paint rather than stick-on strips. You can apply it to the pads & the disc, which will give you the most useful information in terms of which pads will best suit your application.

As for temperatures, if you're really trying you can get up to red heat!

Trademark for the paint was "Tempilaq" many years ago. Surface prep is critical.

[Adam43]

I considered the paint, although it seems a little pricey. Clearly better though...

[Notso Swift]

a bottle goes a lot further than 1 application. Usually you buy 3 or 5 heat ranges and put 3 stripes on, too high, too low, jus right. The reason for buying 5 not 3 is just right for the disk is no the same ase the caliper or the pad.
I only do around the circumfiance of the disk, and the back of the pads. I guess you could do the inside of the disk (where the vents end), and caliper as well, but I have never done it.
Once you have done it once you don't need to do it again until you change something, be that the circuit, the pad material, the venting, what ever. I fI haven't changed anything and there is a problem, then I re-apply and do a double check

[Chris Y]

I have some strips - back of the caliper, between the two pads. Out of 'direct' airflow, but there's not many places on calipers where you won't get airflow (or there shouldn't be!). Don't think air much affects the reading from the strips.

I bought some 200 degree C strips, and they mostly seem to be the right range for my car. I didn't buy the paint because the strips were cheaper, and it meant I could buy a range of strips, which is important when you have no idea what temp. the calipers would be at!