When you are on the highway does the engine stay at the right temp? If not the fan is not the culprit. All my 120s have registered quite high on the dash guage(just to the left of the "H") at highway speeds. But they don't actually get that hot it's just the guage is innacurate (or does not register operating temp in the middle but to the right). My 2 cents.

I have no problem whatsoever cooling a considerably hotted-up B20 with a single Flex-a-Lite 12" fan. In fact, it almost never comes on.

That would suggest that your radiator isn't working efficiently, or perhaps a thermostat or water pump problem. ???

Paul,

I don't know why I didn' thtink of this yesterday, but Dan (the guy with the beard)has dual 9" fans on a 240 radiator in his 140. More room in the "nose" of thise cars, but it could be a start.

Now for some random thoughts. The issue I ran into with my electric fan is that the hood support comes down at an angle that prevents too big of a fan going on there. The housing on mine also protrudes quite a lot further than yours. Moves hella air, though. Setting it to one side would allow a bigger fan, for sure. Dual fans oriented diagonally would accomplish the same thing. But the point there is, make sure the VW fans will fit in the opening.

I think that's it. I'll email you if I remember more. Oh, and if you want Dan's email, give me a shout.
--
Justin 66 122E, 71 145S
Read vclassics!

I'm using a 14" electric fan in front of the radiator on my 1968/B20B, and it hardly ever cuts in at road speed, and then only for a very brief time. Even at traffic lights it doesn't stay on long. I thought from that experience a 12" would still be adequate.

If it doesn't cool enough, check the wiring (no offense intended!) but maybe it is rotating the wrong way. Also check when the temperature it cuts in and out. If it is cutting in at too high a temp, then it will have to work harder to get the temp down again. Finally, is your radiator in good condition? I had mine recored because it was fairly old and clogged.

Good luck

JohnH

Paul,
How about more radiator? Someone posted a link awhile back to a web page with pics documenting his swap to a nissens 3 row 240/740 radiator in his modified 122. With the vastly increased cooling capacity your 12" fan would be more than adequate. All thats needed is the radiator, hoses for a 75 240, possibly the thermostat housing from a 75 240 or probably any 140.


Lee Boerner