SDIF

Anyone fabbed a remote oil cooler and filter.

Not talking about stock type.

Need to get filter away from header.

My concern is all the hose and the potential for oil pressure loss or air in system with startup.

Vader

Considering the stock oil passages in the block are only drilled about 3/8" in diameter, there should be no significant pressure drop if you install lines with the same I.D. or larger. You could use steel tubing around the engine and headers to prevent heat problems, and use rubber only at the transition from the engine to the remote filter mount, much like what is done with factory oil coolers.

askulte

I needed to do something to the Z28tt when the oil temps were climbing past 300degF on hot track days. My solution was a remote filter adapter plate from Canton, -12 line to a Canton/Mecca remote filter, -12 to the Tru-Cool H7B 11"x11"x1.5" 48 row cooler mounted in front of the radiator, and finally a -12 feed to the front of the block. Oil temps are back to normal again, and the filter flows better than any of the spin-ons (even the Wix and Fram racing specific filters).

Depending on what your oiling requirements are (i.e. bearing clearances), you may need large lines like -12's. I would never go any smaller than -10's. Even though your internal oil galleys may be 3/8", there is a pressure drop with every inch of a system (even more so with viscous fluids like oil), and bends/fittings make it even worse. The 12 feet of 3/8" line will be a pretty significant restriction (much worse than the relatively thin gasoline, which uses a 3/8" line). It's not much more expensive to use a larger line in the beginning, instead of doing it twice and upgrading later. Check your idle pressure before/after to see the difference. I was seeing about 10 psi more just by going from a std Mobil1 filter to the Wix racing filter. It's like drinking a milkshake through a tiny straw... That being said - if you still have a stock-internals engine with no special oiling requirements - what size line did GM use for their optional coolers?

SDIF

I needed to do something to the Z28tt when the oil temps were climbing past 300degF on hot track days. My solution was a remote filter adapter plate from Canton, -12 line to a Canton/Mecca remote filter, -12 to the Tru-Cool H7B 11"x11"x1.5" 48 row cooler mounted in front of the radiator, and finally a -12 feed to the front of the block.

what size line did GM use for their optional coolers?


Thanks for the replys!

How do you route the oil back to the front of the block so that it gets to the bearings?

My engine is together. So I cant cut and tap any holes. I have to route it back thruogh the stock filter location.

The GM cooler is a heat exchanger and routes water between the block and the oil fliter. If the water is cooler than the oil it then cools the oil. The oil itself is not routed throught the lines.

askulte

Forgot to mention - it's a Dart Little M block, with the priority main oiling. The oil galleys in the rear of the block (connects to the std oil filter port) and front are all open to the main and lifter galleys, so it doesn't matter if you feed from the rear or front of the block. To get the mains oiled first, the oil was fed from the front, and the front of the lifter galleys were blocked off with NPT plugs. They get fed from the rear (we tried a .125 restrictor in each galley this time, with the hyd lifters), after the mains have taken their share of the oil.