Iain_U1250
Explorer
I got myself and anemometer, just a cheap one off Amazon to do a few tests on airflow through the radiator.
I've got a 16" Bosch fan I had spare off an Audi S4, and it works quite well.
![1699085585609.jpeg 1699085585609.jpeg](https://expeditionportal.com/forum/data/attachments/706/706993-cd74a53313d1ecb1d09e3cbbcade187e.jpg)
I did a few tests yesterday, and some more scientific ones this morning.
![1699086030123.jpeg 1699086030123.jpeg](https://expeditionportal.com/forum/data/attachments/706/706995-3d477bd4f2f376e046156c9e89290ff6.jpg)
![1699085183421.png 1699085183421.png](https://expeditionportal.com/forum/data/attachments/706/706992-23127b04058328de1bc50eea3019f420.jpg)
I copied a similar method as another Unimog owner did on a stock mechanical fan and bare radiator.
![1699085817481.jpeg 1699085817481.jpeg](https://expeditionportal.com/forum/data/attachments/706/706994-9f88a9fcfed54b4007e53a4b55c05c16.jpg)
The results are similar to what I got, and I have an a/c condenser and another fan in front of the radiator.
The airflow varies quite a bit across the radiator as you can see in the results.
I did the all the test with the bonnet up.
![1699086101127.jpeg 1699086101127.jpeg](https://expeditionportal.com/forum/data/attachments/706/706996-139b3b5eec7f755681348ecb1e5bbb11.jpg)
I'll figure out the way to fix the anemometer to the radiator and connect it to my laptop, and go for a drive and see how much airflow comes through when I am driving. I might have to resort to using cable ties and strapping it to the grill.
![1699086388260.jpeg 1699086388260.jpeg](https://expeditionportal.com/forum/data/attachments/706/706997-d0d53d08fb9b29514ef5ef9fea3ab74b.jpg)
I've got a 16" Bosch fan I had spare off an Audi S4, and it works quite well.
![1699085585609.jpeg 1699085585609.jpeg](https://expeditionportal.com/forum/data/attachments/706/706993-cd74a53313d1ecb1d09e3cbbcade187e.jpg)
I did a few tests yesterday, and some more scientific ones this morning.
![1699086030123.jpeg 1699086030123.jpeg](https://expeditionportal.com/forum/data/attachments/706/706995-3d477bd4f2f376e046156c9e89290ff6.jpg)
![1699085183421.png 1699085183421.png](https://expeditionportal.com/forum/data/attachments/706/706992-23127b04058328de1bc50eea3019f420.jpg)
I copied a similar method as another Unimog owner did on a stock mechanical fan and bare radiator.
![1699085817481.jpeg 1699085817481.jpeg](https://expeditionportal.com/forum/data/attachments/706/706994-9f88a9fcfed54b4007e53a4b55c05c16.jpg)
The results are similar to what I got, and I have an a/c condenser and another fan in front of the radiator.
The airflow varies quite a bit across the radiator as you can see in the results.
I did the all the test with the bonnet up.
![1699086101127.jpeg 1699086101127.jpeg](https://expeditionportal.com/forum/data/attachments/706/706996-139b3b5eec7f755681348ecb1e5bbb11.jpg)
I'll figure out the way to fix the anemometer to the radiator and connect it to my laptop, and go for a drive and see how much airflow comes through when I am driving. I might have to resort to using cable ties and strapping it to the grill.
![1699086388260.jpeg 1699086388260.jpeg](https://expeditionportal.com/forum/data/attachments/706/706997-d0d53d08fb9b29514ef5ef9fea3ab74b.jpg)