Engine Compartment Blower Hose, L&R Where to Buy Options

[NARP74]

I borrowed this pic from @skota23 in another topic. Does anyone know where to buy the hoses like this? I have seen and tried others but they have issues and I wanted to try these.

[malcolm2]

i must have had a weak fan. Hoses were new and operational, fan was purchased used from here, and it did turn. whole car had been taken apart and re-worked, no holes in the threshold pipes either. (IMG:style_emoticons/default/piratenanner.gif)

Wonder what kinda flow is normal.

[wonkipop]

Wonder what kinda flow is normal.

gale force 2.
heaps.
sh#tload of air.
etc.

somethings up with yours.

as you pull the heater lever on the floor up, you should be opening the flaps in the heater boxes at the front end of the heat exchangers gradually more and more. cable operated from lever. this lets the hot air from the heat exchangers through and up the longs. its not until you pull the lever fully up that the fan kicks in. its a boost fan for low revs. like sitting at the lights. normally at higher revs cruising the engine cooling fan which is also connected to the system is providing sufficient air flow to push the air through the h e s and with the lever partly up to open the flapper valves to heat the car. the air flow from the cooling fan comes off two little valves with flaps the are off the side of the cooling fan casting on the underside and join to the h e.

not all type 4s had this engine bay boost fan.
i've seen a couple of south african 411s years ago that were in australia.
did not have the engine bay fan. hot climate car delete?