sizing oil cooler, biggest or big enough Options

[machina]

Do most people just use the biggest cooler they can jam up front, like a 22x6x2 or is there a way to calculate how much heat capacity the cooler should be able to remove at a given speed?

Those things start to get pretty heavy and expensive. Would one of the more compact fluidynes work on a 2 liter motor in the summer? I noticed paul (mr lightweight) has a relatively small cooler on his car.

Thanks,
dr

[ArtechnikA]

...is there a way to calculate how much heat capacity the cooler should be able to remove at a given speed?

of course. the heat exchanger (oil cooler) people have already done this, you just need to get the heat rejection vs airflow curves.

Mocal and Earl's/SerckSpeed used to show this data, and it's been too long since i looked at FluidDyne's website for me to remember if they did - which is different completely from knowing if they do now ... the feeling here is the FluidDynes are more efficient so you could make a WAG from the Mocal numbers...

and you get to guess how much heat is rejected by the lines, and how efficient your exhaust airflow is, remembering that it's easier to add tape on cold days than a bigger cooler on the very hot days :-) ...