I have always done this. Before installing an oil filter, turn it upside down and rap it to make sure there is nothing in it, then fill it up with oil. This way, when you start the car, it gets pressure right away. This also works on filters that are mounted horizontally. If you start rotating the filter before you turn it horizontal, mosf if not all of the oil will stay in. Just don't stop rotating it.

And with a puffer ur also suposta turn your ignition off so you dont run it dry (with engine oil system, not seprate)

I agree, although I've never turned a new filter upside down and rapped it a few times to make sure that nothing was in it. I do tend to look down the filter hole to see if there is anything in there that shouldn't be. So far all my filters look clean. I fill the filter about 3/4 full before I install it. I use an AC-Delco PF52(or sometimes another mfg equivalent) so it'* a little tighter getting it around the bottom part of the frame. I also "bump" the ignition a couple of times before I start the car to get the oil pump to pre-fill the filter more. BTW, this is one of those questions that I've always wondered about but never asked....
Which way does oil flow through the filter? Down through the big hole and out through the little holes or the other way around???

What'* a "puffer"???

I think he means 'blower'.

Trofeo, the SC doesn't use engine oil. You can't run it dry while changing engine oil.
You're thinking Turbo.

I always turn my ignition off when i work on anything on my car. You're just asking for trouble if its running and you do it.

I've told this story before elsewhere, but what the heck...

My buddy Paul and I are working on the 455 he'* just installed in his car. The fan shroud is not yet reinstalled. This fact will be significant shortly.

He gets out a little portable Sun engine analyzer, about the size of a large pocket calculator with about six different big long leads that connect to various places on the engine. He hooks them all up, balances the analyzer on the fender and fires up the engine.

As we rev the engine, we don't notice that the blast of air from the fan is blowing around the wires to the analyzer. As I lean over the engine, out of the corner of my eye I notice something moving, and we both jump backwards as the leads suddenly begin rapidly disappearing into the engine. As they finish wrapping themselves around the fan, the analyzer leaps off the fender into the engine compartment and begins flying in circles *WHAPITY*WHAPITY*WHAPITY* around the engine. Finally the last of the leads tears loose from the analyzer, and our heads rotate like spectators at a tennis match as the analyzer comes sailing out and lands with a crash on the hood of a car two spaces down. "I'd better shut the engine off!" says Paul.

I believe the oil flows into the center of the filter and out the OD.

D'oh!

we all make mistakes every now and then.