Stock oil cooler, Inlet/Outlet Options

[Chad911sc]

Which hole is the inlet for the stock oil cooler and which is the outlet. It flows up from the oil pump to one of the holes and into the stock oil cooler and then back into the engine. I need to know which one is which because my flow for my external oil cooler/fan combo is directionally dependent going through my oil thermostat. I was told it was outlet at the top and inlet on the bottom by the sales rep, but after looking closely at my case, it looks like the outlet is at the bottom.
I think the blue path is the outlet to the stock oil cooler, and the red path is the inlet back into the engine…is this correct??

[Chad911sc]

Didn’t realize that…I’ll have to make some more modifications I guess.

[Superhawk996]

Didn’t realize that…I’ll have to make some more modifications I guess.

Good man! (IMG:style_emoticons/default/smilie_pokal.gif)

There is more to air cooling and these engines than appears to the eye.

I’m going to throw one more at you.

The vast majority of engine wear occurs to rings as the engine warms up. I’ll be happy to point you to many SAE papers in this topic if you care.

So by disabling the flaps and the thermostat you’re going to extend the warm up time of your engine. This is true even in Florida heat.

The air coooling on these engines is a well engineered system. When you start modifying it - you’re on your own to understand the implications so to speak.

On a hobby engine that maybe only gets driven on weekends - maybe the excess ring wear is acceptable. Not my place to decide but you should be aware of the trade-off being made.

(IMG:style_emoticons/default/beerchug.gif)