Turbo oil feed thread sizes

[Alexx117]

I've done a few searches on the forum and from what i've seen no one has come to a conclusion to this.

What is the thread size of the bolt in the head which can be used to feed the turbo? i've seen 1/8"bsp threaded or 1/8"NPT which only have 1 tpi difference.

If anyone has got this bolt out could you please count the TPI.

Cheers Guys

Alex

 

[Paul Smith]

1/8"NPT


If I remember correctly

 

[slyboogie]

Where abouts are the oil feed and return locations? I'm looking into this now. Was gonna carb a k10 but now i wanna turbo a k11! haha. I'm guessing the return can just go into the sump so mostly where is the feed? Any links to somewhere online i can order the part from? Do i need a sealent to fit it or just bolt it up Thanks guys.

 

[Alexx117]

yeah the return will need to go to sump, ive got an adaptor on mine which basically a hole drilled in the sump (whilst taken off and cleaned after) and a little fiting bolted on. as for the oil feed you can take it from by the oil filter with a t peice adaptor or you can take it from the head from a gallery plug which u can see on the far left side of the head on the exhaust side