Is everyone familiar with this picture?

[Nick.Hay]

If that was IN the car... Imagine how hard you would have be fanging to get that sort of temperature

[Jon K]

just to clarify - the manifold is not necessarily glowing... those turbos only put out about 7 or 10 psi... nothing - they are more than likely using a thermal camera that highlights the heat.

[winfred]

uhhhh...you've never seen a glowing manifold! don't you have a turbo? **** my 89 760 volvo turbo would glow just from the interstate at the bottle neck before going into the turbo, after a good flog the whole turbine housing would glow, seen a late model amg benz motor on a dyno glowing the pipes back a good 10 feet

just to clarify - the manifold is not necessarily glowing... those turbos only put out about 7 or 10 psi... nothing - they are more than likely using a thermal camera that highlights the heat.

[winfred]

1000-1375 degrees is the range from blood to cherry red, not a big deal on a gas motor

[Jon K]

winfred - i wasnt sure if they were actually glowing or if they used a thermal imaging camera.

[Bill R.]

to really retard the timing to prevent detonation, then its lighting on the way out... Thats how exhaust valves go bye bye

winfred - i wasnt sure if they were actually glowing or if they used a thermal imaging camera.

[Gayle]

winfred - i wasnt sure if they were actually glowing or if they used a thermal imaging camera.

I wondered that too and that was one of the reasons I requested an explanation of what I was seeing.

[Rustam]

I was reminded by the subject of high temperature and glowing exhaust - McLaren F1 uses gold to shield the heat from that bmw v12:

[BigKriss]

maybe there is no air flow to cool down the mainfold and exhaust.

If that was IN the car... Imagine how hard you would have be fanging to get that sort of temperature

[Rustam]

maybe there is no air flow to cool down the mainfold and exhaust.

its very likely that the engine is run at max rpm - they do that deliberately to break parts, so that they can be taken outand analyzed to design better ones...