oil temperature and cooling

1)- The plug over the fuel pump receives full pressure direct from the oil pump, so some guys use that for oil PRESSURE, rather than the one in back which gets pressure after everything else in the engine has tapped it. Never tried a temp sender there- I dunno.
2)- Again, dunno. The AC condenser area (we think) receives a swirl of air from the top of the car back against the rear bumper... at moderate speeds. There are indications that the swirl doesn't reach the bumper as speed increases, generating a low-pressure area. The AC fan is wired to suck the swirl in thru the condenser & exhaust it back against the trunk liner, then down toward the road. Obviously, this isn't gonna work well if the area is in a partial vacuum, which is maybe why the AC doesn't work above 125mph. Some guys have converted the condenser to an oil cooler (it will take 250psi) and it seems to work at lower speeds anyway.
3)- In My Humble Opinion....IMHO

I HAVE BEEN MEANING TO VOICE MY IDEA FOR A CURE IN DEALING WITH THE VACUUM AREA BEHIND THE A/C CONDENSOR IN THE REAR BULKHEAD. HERES WHAT I DID: UNPLUG THE CONNECTION TO THE ELECTRIC FAN, REACH IN WITH A PAIR OF DYKES (DIAGINAL CUTTING PLIERS) SNIP OFF THE LITTLE PLASTIC "KEY" WHICH DICTATES THE POLARITY. NOW YOU CAN REVERSE THE PLUG 180 DEGREES, PLUG IT IN!! NOW YOUR FAN TAKES AIR FROM THE ENGINE COMPARTMENT;(HOW HOT CAN IT BE WITH MOST COMING FROM UNDER THE CAR, AS COMPARED TO THE REAR OF THE CAR ANYWAY??) AND BLOWS THIS AIR OUT THROUGH THE CONDENSER WITH THE VACUUM NOW HELPING TO DRAW IT OUT. YOU'LL EVEN DISCOVER THAT THE FAN NOW SPINS MUCH FASTER. THIS MUST HAVE SOMETHING TO DO WITH HOW THE BRUSHES WERE ORIGINALLY WORN-IN, AS OPPOSED TO HOW THEY ARE NOW MAKING BETTER CONTACT. IT WORKED FOR ME, GOOD-LUCK TO ALL!! MARLIN JACK, MANTECA, CALIF.