I am in the middle of putting 2 20-fin aluminum engine coolers on my Raptor and I have a couple quick questions.

1) Should I put both of them on the bottom line or should I put one on the bottom and one on the top?

2) What is the direction of coolant flow? Bottom of radiator>water pump>bottom of engine>top of engine>thermostat>top of radiator?
Or reverse of that?

I need a speedy response if possible. I am racing my first TT race tomorrow and I have to get her back together. Thanks guys.

RR1

 

i have a question for you do they just use the air from the speed you are traveling at because i have no clue what they are and that is my hypothesis

 

lol

 

top of engine>thermostat>top of radiator? That's the way most work.

 

thanks sixsixt, that's what I thought.

What about placement? Both on bottom line or one on bottom and one on top?

Radfastdude, as for how they work, some have a venturi inside that is supposed to slow down the passage of the coolant so it can spend more time in the head soaking up heat and more time in the radiator getting rid of heat. Some others do not have the venturi and just rely on the aluminum fins to dissipate heat as air passes over it.

RR1