how to do the turbo oil system? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

max_torque · 05-11-2004, 23:30

Hi, I'm putting a TO4 turbo on a alloy head crossflow engine. Are there any methods for installing the turbo oil drain in the sump that don't involve removing the sump from the motor?

Is it best to get the oil from a T-fitting at the sender on the block?

thanks.

qwikcorty · 05-12-2004, 00:58

ive been wanting to ask that same question, i think in TSA's instructions to fit their stage 1 kit, u drill say a 5mm hole, then wack a centre punch into it to flare it out bigger to be able to get a decent thread in it.
Can u put the drain just into the rocker cover? Why not do that?

and yes feeding the turbo, you put a tee peice b4 the sender.

DansEdgli · 05-12-2004, 01:01

The drain needs to work with gravity I think, so it has to go straight down.

qwikcorty · 05-12-2004, 01:04

but theres 30psi+ of oil pressure pussing it up there it i put it into the r/cover, i REALLY dont wanna drill my sump.

DansEdgli · 05-12-2004, 01:07

/shrugs shoulders,
I read it on performance forums. They (you know They) say that the feed point must be above the return line and the drain line shouldnt be more than 30 degrees from vertical.
Dan

DansEdgli · 05-12-2004, 01:08

Maybe we can take all our cars to TSA and make them drill it properly. I dont want to do it either.

ttxr8 · 05-12-2004, 01:14

You need to drain into the sump with a fairly big (i use 3/4") drain line and make sure it enters the sump above the oil line. If you have too small of a drain or the oil level is above the return line then you'll end up blowing turbo seals with all the oil back pressue that will build up.
Usually the best spot to take the oil feed is a t-peice where the oil pressure sender is.
Ball bearing turbos need a restrictor in the feed line, bout 2mm.

73gscoupe · 05-12-2004, 02:25

I ran 5/8 th line for oil drain, and yes it must go straight down, with no kinks or flat runs in the hose. It will smoke like crazy if you dont (I know!). oil drain must be at bottom of turbo, supply can be wherever.

I ran 5/16 oil cooler hose for supply, with a #64 holleyt jet for a restrictor. Came off an oil gallery outlet on the block, but you can come off the oil pressure sender if you need to.

My pan was off to do the oil drain, I welded a 3/4 " BSP socket to the pan, then drilled through. Not sure if you could do this on car, i guess it depends on room. I have heard of people punching the pan, rolling the metal and tapping, but not sure how well it works. The socket looks good and is real sturdy.