Figured id pass this on.Its touches on it a little,but good still general info

Do a search on you tube, Theres alot of other type how to or explanation videos


[YOUTUBE]http://www.youtube.com/watch?v=KOIhaI3eEog[/YOUTUBE]


[YOUTUBE]http://www.youtube.com/watch?v=tOiHdIXVWE8[/YOUTUBE]

[YOUTUBE]http://www.youtube.com/watch?v=7IpJlYssvkM[/YOUTUBE]

that's correct. it's what i have tried to point out in the " what size lines do i need" threads.

the oil pump is a positive displacement device. it will move forward exactly the same volume of oil every single time it rotates one turn. if you run the pump at 1000 rpm, it will move its unit volume times 1000 each minute. if you emptied it into a 10" pipe , open at one end and put a gage on the pipe you could run it at 10,000 rpm and the gage would say 0 because the flow rate of the pipe exceeds the maximum out put of the pump. if you capped the end of that pipe and the pump had no relief valve you would not be able to turn the pump as there would be zero flow and the pump would be trying to compress a non compressable fluid. what happens inside your motor is somewhere in the middle.

oil pressure on your gage is the difference between the " flow rate" of the motor and by that i mean the total leakage of oil by the bearing clearences and lifter galley etc etc etc versus the total flow rate of the pump. if your pump moves 1 gal per minute at a given speed and your motor has giant clearences and bleeds 1 gal per minute your gage will show zero pressure.

if your pump moves 1 gal per minute at the same given speed and your motor has clearences that squeak then your gage will probably read 100 psi because the flow rate of the assembly would be vastly less than the flow rate of the pump.. and i am ignoring the various effects of viscosity and temp because those are constants... if you did the same tests with mollasses and then water you would get the same exact results just the numbers would be offset by the linear viscosity effect.

so... what does it all mean ? it means that your motor only needs as much oil pressure as it needs. more isn't better ever.

that oil pressure " need" number is a strict function of dynamic loads on the crank bearings. i.e. how mush oil pressure is necessary within that tiny bearing to crank clearence to keep the two from touching when the motor is at maximum dynamic load. no need to worry about this. real engineers with slide rules and pocket protectors figured all this out before most of you were born and there isn't anything that has been invented since then that changes much of anything. and if you looked at the pressure versus load graphs of a modern formula 1 motor that spins 17,000 revs and makes about 600 hp these days, you would see that those numbers are very similar to what your basic chevy v-8 was in 1950. physics doesn't change.

so... if your basic 10:1 502 motor that makes 500 hp has the clearences that the factory reccomends and an oil pump that makes the correct volume to support the crank then what do you think you are accomplishing by going to hi pressure/hi volume pumps ? nothing. all you are doing is forcing the pump to push much more oil thru the by pass and make a lot of unecessary heat thru friction and pumping losses and wearing out the distributer drive gear that is having to turn it... and giving away horsepower.

and its the same w/ the oil lines. the notion that -12 and -16 lines are essential is absurd. the flowrates at pressure of those lines is roughly 100 times what the motor actually moves.
so all you do is carry around a lot of extra weight and expense and increase the oil capacity of the motor by the amount it takes to fill the lines.

but they do look very zoomy.

well... in most cases that's reason enough to do it.