I have the Greddy TT kit and was wondering if I could attach the Turbo Oil Feed Lines to the Greddy Oil Block adapter?

 

Your post doesnt make complete sense but I think if you were to do this you would lose the OEM oil pressure sending unit if you were to bypass the first tee.

 

I think what he is saying is to add a oil sandwich adapter to feed oil to the turbos instead of running a T on the oil pressure sensor

 

I have no idea!!! OP, get your **** straight!!

 

Can I attach the Turbo Oil Feed Lines to the Oil Block Adapter?

 

Can you please reword that? We don't know what you mean.

IF you mean use an oil filter adapter plate (sandwich) I would advise against it. You want the most pressure possible going to the greddy turbos because they are journal bearing. Jb Turbos need a lot of oil. Also, since they are only oil cooled you really need an oil cooler attached to your adapter plate/sandwich. Also having that oil pressure sensor at the end of the turbo feed T will help you to know if your turbos are getting enough oil pressure or not. I would just go with what Greddy says to do in the instructions. They probably know what they're talking about.

And why do you want to do this?

If that's not what you're talking about... Then wtf ARE you talking about?

 

Yes.

I ran the turbo oil feeds off the Greddy oil sandwich adapter for a couple years (way back in 2003 when I first installed the Greddy to my 350z). Eventually I drilled and tapped the oil pan near the pressure sensor for some additional oil ports to feed the turbos.

Thinking back, I would probably double check that the ports on the Greddy sandwich are on the filtered side. They probably are, but worth a thought.

 

^^^^. Always do what this man says.

I stand corrected. (Embarrassed face)

 

Some of the things you mentioned are legitimate concerns so nothing to be embarrassed about.

Pressure in the system will be the highest near the pump. The coolest after any added coolers. I believe anywhere in the pressurized oil system is going to offer enough oil for the turbos assuming adequate plumbing size. Too much pressure would be a bad thing too but I have no idea how much pressure at the turbo is too much for these turbos.

My ultimate reasoning for changing the stuff from how Greddy provides it is that Greddy sends basic BSPT T-Fittings to just "get it done". I am not a fan of taper thread fittings, especially in small sizes like 1/8 BSPT with weak/thin metals and important things like oil pressure or fuel. The T-Fitting arrangement there ends up rather cluttered with too many places for potential leakage or breakage.

 

Running your feedlines directly after the filter isnt a bad idea on the thought that running oil after it is filter will reduce contaminates that go through the turbos - I don't know if the pressure loss would play a factor either ... I'm not saying its the worst idea in the world but it may not be the best idea either but it is a good discussion point...