g2turbo

I was thinking about this last night...

I know that a shroud is ideal when running a radiator fan on the pull-side. Does it have the same effect on the other side as a pusher? Or would this impede the natural airflow across the radiator core?

Along the same lines has anyone used a FAL full-radiator fan setup on the front side of the radiator as a pusher setup?

Thanks!

dpetro1

my initial response would be, dont do it cause its gonna block regular airflow to the radiator.

but using a shroud would make the fan more efficient so maybe you you could get away with running it constant if the fan was powerful enough to cool the car by itself. (maybe use the engine management to turn the fan on a certain temps) probably not though. just my 2 cents

Tony the Tiger

No, a shoud on the pusher side will only impede airflow... The whole reasoning for a shroud on the puller side is to direct fresh airflow from the front of the rad and divert as much fresh air as possible while the fan is pulling.

With a pusher, it will do the opposite and block all fresh airflow.

HiProfile

It may reduce natural flow, but the fan should be sized to cool the engine with zero outside airflow. If it can cool at idle, it will cool at speed with a higher load, since the higher pressure in front of the fan will allow it to flow more air overall. OEM's usually don't use shrouds on pushers because they are usually extra fans, redundant. They also have the ability to design the entire engine bay to allow for a puller fan...

Regardless, you could still add a trap-door thingy to it, or angled air inlets. I have a small EF fan/shroud on my AC condenser due to space, and I've considered doing that. The fixed inlets would have to face inward, away from the fan, drawing air in like raised louvers on race cars, as well as allowing higher pressure air to enter.

cteg6

A SHROUD WOULD DEFINATELY BE IDEAL.....