Turbo Oil Feed And Drain Sizes?

Crash27 · Aug 10, 2014

Have currently got the standard Greddy setup so oil feed and oil drain going to the inlet side of the block. As I'm sorting the cracked manifold I thought now was a good time to sort this out.

A few questions!

I googled the block thread size for the oil feed and I came up with conflicting information. I read it should be either m10x1.5 OR is it 3AN?

The oil feed pipe I have has the oil pressure guage size thread. What size is this?

Have also read of various sizes of oil drain in the sump 3/8 or 1/2?? Which is best for the greddy turbo?

Thanks

Scott

kristovey · Aug 10, 2014

The oil pressure switch thread is 1/8th BSPT you can use a BSP Fitting with a copper washer though. Im using an AN-3 line but Im worried that its not supplying enough oil.

and AN 10 for the drain

chimp007_uk · Aug 10, 2014

The oil feed port in the 1.6 block is an m10*1.5. I had a line made up at pitted using a 1/4" hose with a banjo at the other end. The larger the pipe bore, you may need an oil restrictor. I welded up the banjo bolt and drilled it to 1mm.

I have a 5/8" oil drain to the sump, no issues with oil backing up. I think 1/2" is the smallest you want to go.

Turbo Oil Feed And Drain Sizes?

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