Darth Bobo

So I got this Infrared thermometer gun and I've been playing with it to find out how hot my turbo gets.

After a fairly aggressive climb up a tight mountain road, turbo housing read 500 degrees Celcius. Turbo was not glowing hot, but you could really feel the heat coming off it.

After 5 minutes idling, temps had dropped to 340 deg.C. After a few minutes more, temps had stablized to 310 C and stayed there.

After about an hour on the freeway at 100-140 KM/h, then about 5 minutes of sedate driving to cool things down, temps were 385 C.

I'll try and get some time to do a more scientific test. At the moment, it seems the lowest temps you can expect to get is around 300 Celcius. I am chipped, so my turbo is likely quite a bit hotter than stock.

GTakacs

You can log temperature data real time and graph it no need to be popping the hood and using a temp gun.

lawong

IIRC, the turbos can get as hot as 1000 C. whew baby!

AggregatVier

...open the hood when it's dark out and see the pretty glow:
<img src="http://pictureposter.audiworld.com/20982/a4glowingturbo.jpg">

AUDI808A4

<center><img src="http://pictureposter.audiworld.com/52591/turbo.jpg"></center><p>

AggregatVier

...by the rocket's red glare...