Radiator

[loony]

I have MB190 radiator and like Voucht I bought 12" universal fan...

But... be carefull - my fan don't fit my radiator. Or my "replacement" radiator has different inner sizes or my 12" fan is bigger than Voucht's.

As my fan is 297mm I think that Voucht fan is as they call it 11"... or genuine MB radiator is little bigger. So guys - look out.

Now my turn for questions...
I need to grind a little of fan housing, but it's not big deal...





Question is... how to fit fan. Should I use "yellow" mounting points or "red" ? Or maybe both ? Or turn fan 90 degrees and use 4 mounting points like "red" ? I don't like the idea of mounting to the core of radiator (it's chineese)
"Yellow" mounting points fits nicely to sides of radiator (can't see this on photo) I need to know before housing grinding...
Are the two mounting points enough ?

[SeriesLandy]

Have you tried the fan on a power supply yet. I was surprised how powerful mine is and it tried to spin around on its own.

I would have said 4 fixings is needed. I used the push through core fixings which seem fine on my polo rad. Can you not drill a new hole further in on the yellow fixings and attach to the core?

[ayjay]

It will probably flap against your fins at high speed

[loony]

I can attach mounting points (they are detachable) like below and mount to radiator core....


Can't see this on photo but they fit...

[voucht]

Lucas,
Your fan should be a 12'' blade, mine is a 12'' overall (305mm diam). But I think yours if fine for the side of the radiator you want to fit it on.
I fitted mine on the other side because I had to turned the radiator around to have the lower water inlet on the left side, and the high one on the right side : it is much better for my engine set up. But that way, I needed to fit the fan on the radiator's side where the core's side plates are offset and not flush. So I had to chose smaller diameter to fit the fan in between those two offset side plates.
If you fit your fan on the side where the side plates and brackets are flush with the core, the diameter you chose is good : it covers a bigger surface than mine.

To fit your fan, remember one very important thing : the fan has to be flush with the core face, it has to be perfectly against the core, to touch it. Otherwise most of the airflow it will suck will not come from trough the radiator, but from the sides.
Also, as already mention on this forum, a puller fan is more efficient than a blower fan and should always be preferred. Blower fan should be installed only if there not enough room to fit a puller between the radiator and the engine.

I didn't want to fit mine trough the core with the lock ties either, but it looks to be a very popular way of fitting fans, used a lot on racing cars. I had no other choice, so I did it this way, and finally, I'm fine with it. Just be very careful when you enlarge the holes in the fins not to damage the tubes.

Good luck

[loony]

OK - fan housing modified... it's touching radiator core when in place just like you said Voucht. It will be "puller", but I need to decide how radiator would be mounted (according to engine needs)





I'll fix it trough the core with 4 mounting points. If it's ok for racing use it'll be good for my roadster

[voucht]

Looks very nice Lucas!
Here are the fitting instructions from Davies Craig (the brand of the fan I have).

http://www.daviescraig.com.au/Images...8-08-06%29.pdf

On page 2 are the recommendations for fitting through the core and I found them very useful when I fitted mine.

Perhaps you will too

[K4KEV]

I mounted through the core too with zip ties but I felt unhappy about it actually touching the core, as after all aluminium is a really soft metal so I played safe and put double sided foam tape around the rim where it would touch just a thought mind you.

[voucht]

Yep Kev, you're right. Actually some fan manufacturers (like PACET, unfortunately they no longer exist which is a shame as they were making the best performing fans) supply their fans with the double sided foam tape, pre-cut to the fan's shape.