Oil Feed for Small Block Turbo

[Moparturbo]

Would it be ok to use the port in the back of the block where the oil pressure sending unit is to feed the oil to the turbo? If so, what size AN line would be sufficient?
Thanks

 

[Syleng1]

-4
With a handle like Moparturbo… shouldn’t we be asking YOU turbo questions?

 

[Moparturbo]

-4
With a handle like Moparturbo… shouldn’t we be asking YOU turbo questions?

I wish I knew it all. I know enough to get in trouble lol

 

[1WildRT]

I wish I knew it all. I know enough to get in trouble lol

I got a buddy with the same affliction... Putting two big *** turbos on his Coyote in a 62 Falcon gasser....

 

[Professor Fate]

Disclaimer: I am not a turbo guy, my knowledge is limited to stock applications on heavy equipment, Cummins, and a short obsession with 2.2/2.5 turbos about 20 years ago...
IMHO, the 1/8 NPT port for the sending unit is waaay too small for a turbo feed line, for instance the feed on a stock Cummins is 3/8", so check the inlet size on the turbo you intend to use and match it. If you're going to run a remote filter or oil cooler setup, those would give you a good place to tap off a feed line of the appropriate size.

 

[Matts440]

Most journal bearing turbos -4an is just fine, and yes the port on the back of the block is just fine. I have -4an feeds of both my 76mm and -12an drains going back into the oil pan.

 

[teringer]

Use can use a oil filter adapter and tap it to the size you want

 

[Woody500]

Small line should be good as you need an oriface at turbo inlet or you'll get too much oil & possibly get past sealing rings & smoke

 

[TheGrateRonzini]

I put a tee in the port, top oil pressure, side oil feed. Oil return into pan, smaller hole, bang a punch in for some meat to thread. At least I think that’s what I did. /6

 

[MadScientistMat]

My original slant six build used a tee on the sender on the oil pump; this approach should work fine on a V8 too. I used either a -3 or -4 hose. Journal bearing turbos don't need a lot of oil. The drain side needs to be big though.

 

[Woody500]

My original slant six build used a tee on the sender on the oil pump; this approach should work fine on a V8 too. I used either a -3 or -4 hose. Journal bearing turbos don't need a lot of oil. The drain side needs to be big though.

At least -10 for drain hose