darkostoj

iTrader: (1)

just curious what would be the best way to do this? I have a pretty large oil cooler on the front of my car and was wondering how I should plumb it.

I was going to tap into the 2 pressure fittings on the side of the oil pan where the cooler would normally go, but what about the pressure line for the turbo's? Is it better to go before the cooler or after?

I guess it would depend on is it better to keep the cooler oil for the engine or for the turbo. If I route the oil on the inlet of the cooler the oil going to the turbo's would be at the highest temperature and less of that temperature would go to the engine. If i route the line after the cooler the oil would be at its coolest state going to the turbo's first and then the engine giving it higher oil temps.

edge04

iTrader: (9)

I asked the same and didn't get a response. I am thinking of running the cooler after the turbos and then form the cooler to the pan.

LS1TOYOTA

iTrader: (3)

Not sure if this will help but I took this out of my LQ4 service manual on page 6-202,
"An external oil cooler is available on certain applications. Oil is
directed from the oil pump, through the lower main oil gallery
to the full flow oil filter. Oil is then directed through the oil pan
outlet oil gallery (located in the left rear of the oil pan) and to
the external oil cooler via a hose assembly. Oil flows through
the oil cooler and returns to the engine at the oil pan inlet oil
gallery (located in the left rear of the oil pan). Oil is then
directed to the upper main oil galleries and the remainder of
the engine assembly."

edge04

iTrader: (9)

I would think more people on here are running a oil cooler with turbos

darkostoj

iTrader: (1)

the thread isn't about whether to run a cooler or not...its about where to plumb the turbo's into the oiling system.

LS1TOYOTA

iTrader: (3)

I thought you were asking about a cooler.

You can plumb the turbo anywhere. Either the back at the top or plumb it near the filter.

And I believe edge04 was stating that cause there's not much response.

Ferocity02

iTrader: (60)

You cannot put a cooler between the turbo drain and the pan because the turbo needs gravity to drain the oil, it is not pressurized. Also, not much oil goes through the turbo compared to the engine so there would be little to any effect.

The best way is to get one of those oil cooler adapter pieces that bolts to the block right above the oil filter. Then you plumb the fittings of the block to your oil cooler. And then some blocks have a port where you can put an external oil line to feed the turbo with cooled oil.

I think Katech and Lingenfelter make the block, and you can find some on eBay. They are easy to make if you have access to a mill.

427

iTrader: (3)

The turbo could get oil from either side and should not change performance of the system. The best oil cooler adapter I have seen is from Mocal and has a thermostat built in, it sends oil into the cooler at 200F.

Kurt