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Then it becomes hilarious

Well "sunnys" right, it is a heat exchanger BUUUUTTTT... ... if NASA calles it a radiator then it MUST be a radiator. That was too easy, I will try and come up with a better question.

I seem to remember that a plenum was supposed to be a chamber, with a reasonable volume, where air came into it in a turbulent & high velocity state, then stabilised & slowed, before being drawn off to do whatever it was used for.
The effect is supposed to be a bit like the stilling pond at the bottom of a dam's spillway.

In the case of the cowl/scuttle plenum, the air from outside a fast moving car is drawn in through whatever opening is provided & 'calmed' before being drawn into the passenger compartment for ventilation.

Similarly, the plenum in a tunnel ram manifold is used to 'calm' [a relative term] the fuel/air mix that is rushing in from the carbs. It also dampens the pressure waves, or pulses, from the individual runners to the cylinders, leading to more stable airflow & more reliable carburetion.

Well, ... that's what I read in a magazine somewhere.

a radiator? even NASA calls them radiators.
3 pages for that...
That box where the blower gets the fresh air from outside that's the plenum as someone in the first page said. I never call it that, seems plenum is the name given to things that don't need a special name but get one anyway... it's frequently used in applications of air movings like intakes and HVAC, cat5 network cables come in plenum which means you can run them in air ducts...
the cowl covers the plenum.
beer and ale are differnt products...

my guess is a heat exchanger
.
anyway i'm right hey
he he oohh it's all good fun til someone looses an eye!!

Cheers for the support Wardy

Sorry, my question was a little vague. Whats the TECHNICAL term for a radiator?

Wow you are cool. You could be on Australian Idol. Maybe even win

Well said bundy.. i agree 100% ive just been waitin for someone else ta write that up so i can be a sheep!!! BAAAAA grow up guys... oh sorry i mean BOYS

WOW, I just read this thread and there is some serious cat fighting, name calling, digging up the past going on. I have never responded to this stuff before but I thought what the hell. There was a mention of "not having any BALLS", of course you lot have no balls cause you are carring on like a pack of BITCHES (no offence to the lovely ladies out there). Waa Waaah so and so said this and Boo Hoo so and so said that But I am right NO I am right No I am right..... WELL YOUR BOTH RIGHT. A coul is a scuttle and a scuttle is a coul. Oh and PHUNK - BAAAAA BAAAA BAAAA MORON. Sunny is on the money You dont just get respect YOU GOTS TO EARN IT and the way you are going its gonna be a long hard road ahead of you champ. Any way bact to the thread title -
What is the proper name for a RADIATOR?

respect you say what do you know about respect.
i dont think you could earn respect as long as your ratty arse pionts to the ground.
respect. no dont take your pshyc pills i need a good laugh. just keep typing and i'll keep laughing.