Are the rumors of the oil feed on the head true?

[Colossus]

I've always been told running the oil feed for a larger turbo (60-1 trim) off the head is a bad idea. Well, I retapped an AN fitting and got it sized for my head, and my oil feed line runs off my head. I was told this deprives it of oil (unless you add more oil to compensate..)

What's the opinion of it? AGP shows their setup feed from the head, but I started stripping out bolts on the oil filter housing to get another supply, so this is all I can tap for oil supply.

 

[yo2001]

I would contact the vender where you bought the turbo and ask.

 

[zross1]

Most people run the oil feed line from the oil filter housing because it's filtered oil whih is obviously good for the turbo. When you run it from the head it's about as unfiltered as it can possibly get causing it to have impurities that are not good for your turbo. If you stripped the bolts on the filter housing your kind of stuck though. If it's not completly stripped, try getting some penetrating oil and squirt it on the fitting your trying to get out. That's what I had to do with mine and it finally came out but mine wasn't completly stripped either.

 

[djsven]

Hi,

What I know about it is, when you have a ball bearing turbo you go with the head feed. Because there is less oil pressure and the bearings can take the high pressure of the oil filter housing. When you have a non ball bearing turbo you can take it from the oil filter housing.

Sven

 

[4g63swap]

if you decide that you need to change the location of your feed and need to get that bolt out heres what you do:

get a torch and heat the bolt that you want to remove.
how long to heat it you ask when mine was read to come out it was dripping a black liquid
when its al nice and hot take the correct sized alen wrench and a breaker bar and bamm your done....

lets say that you stripped it out completly find yourself a flathead screw driver that is just to big to fit all the way in the bolt. tap it in gently(sp)untill its jammed into the bolt then heat up the bolt as stated above.(make sure that you use a screw driver that has a square shaft or what ever so you can put a cressent wrench on it for torque)crank that screw driver counter clockwise and there you have it no more bolt.

 

[gasguzzler]

It's a volume issue, can't get enough oil volume from the head. Ball bearing turbos just need a restrictor to use oil from the housing.