Radiator

[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.

[baz-r]

I have a front mounted pushing fan with no issues at all even on the dyno or thrashing on a hot day.

the way I see it you get a restriction of airflow with it infront or behind the rad

some fans have directional blade patterns and push more air in one direction than the other even if the motor is bidirectional

[raceral]

It is best to not go through the fins for an attachment.
I made mine with a few simple straps that secures it to the radiator itself.
Quite easy and has worked out well.

Al

[voucht]

Originally Posted by baz-r

the way I see it you get a restriction of airflow with it infront or behind the rad

Hi Baz,
David wrote a long post about that on this thread, so did I Most of the answer I would have published here is over there.
http://www.haynes.co.uk/forums/showt...t=6165&page=10

Originally Posted by baz-r

some fans have directional blade patterns and push more air in one direction than the other even if the motor is bidirectional

And a complement in answer to what you say : Blower fans with special designed bladed which make them more efficient than the puller equivalent, have just been designed to increase the efficiency of a blower fan because some applications do not have enough room between the engine and the radiator to install a puller. So it is totally normal that these kind of design exists, but it doesn't make a blower set-up more efficient or generally preferable to a puller set-up, for the reason exposed here and the other thread.