I am getting oil in my coolant tank.

Only after a razzing.

car modified. bigger turbo and injectors ect.

I had a problem with gas in  the coolant. Have put arp studs on and torqued up to 170Nm. I was thinking the most obvious would be the head gasket, but its pulled down tight and have checked the torques.

What is the next most likel?

 

New gasket fitted? Or fitted studs with head left in place?

Other options are anywhere oil can meet coolant, cracked head/cracked block/or rusty oil cooler.

Oil cooler ? That's the usual suspect for oil in the coolant

New gasket with studs.

 

I was reading about oil cooles in vw and audi so am testing that today.

 

Thank for ideas

Not the oil cooler. This my second block and head. Is anyone else having issues when modifying? What's the limit?

Are you sure it's not just oil left over in your rad/coolant system from the knackered eng?

What turbo/boost etc are you running?

I have flushed out system. used a detergent and loads of hot water. and it came back. Got new turbo little while ago out of 2.8 LT van. Not sure what current top boost is. Cant seem to find a boost meter that goes over 4 bar, but its up there some where. And then I like to throw in a big 300 shot of N₂O.

Although the oil is leaking without N₂O. its pushed hard. the block swap was 10000 miles ago. the head has had work done on it although i'm not sure it was worth it.

Have used heavy duty rad weld and it seems to have stopped. Have not tried full boost or N₂O yet. Will not do that till next Saturday on the drag strip.

4 bar?Jesus!

 

This in a Fabia?Any power figures/pics etc?