Combating the heat

[RongTurnRacing]

Originally Posted by DarkPira7e

I'm going to dig around and see if I happened to take photos. I know I had a couple but I'm not sure they reveal anything. I mostly took them as a comparison to show it really was identical to the fa20 wrx pump

Again very helpful. What size drain line did you use from your turbo? I can't quite tell what size the fitting is in that pump.

[Grady]

Originally Posted by RT-BRZ

Again very helpful. What size drain line did you use from your turbo? I can't quite tell what size the fitting is in that pump.

The AVO one is a #4.

[RongTurnRacing]

Originally Posted by Grady

The AVO one is a #4.

Awesome. Thanks.

I've been chatting with Alan at JDL and he's reasonably convinced that the WRX scavenge pump relies on a reservoir but I haven't seen any evidence of that.

I'm using a Garrett GTX2860R GenII and it has what I believe is a 3/8 to 10AN fitting in it (I'm sure of the 10AN side) to 10AN hose to drain to the pan. I'm trying to decide which size hose to use to the scavenge pump. I don't have the pump in hand yet so I haven't seen exactly what I'll be dealing with yet.

[Grady]

Originally Posted by RT-BRZ

Awesome. Thanks.

I've been chatting with Alan at JDL and he's reasonably convinced that the WRX scavenge pump relies on a reservoir but I haven't seen any evidence of that.

I'm using a Garrett GTX2860R GenII and it has what I believe is a 3/8 to 10AN fitting in it (I'm sure of the 10AN side) to 10AN hose to drain to the pan. I'm trying to decide which size hose to use to the scavenge pump. I don't have the pump in hand yet so I haven't seen exactly what I'll be dealing with yet.

Yes you never want to suck oil out of a turbo. You want it to drain out, then suck it out of the tank. I have seen setups where they do not have a tank and I guess it works but in my opinion not correct. You can find turbo drain tanks easily. Turbo drains into the tank, tank is vented to the crankcase, scavenge pump suck the oil out.

[RongTurnRacing]

Originally Posted by Grady

Yes you never want to suck oil out of a turbo. You want it to drain out, then suck it out of the tank. I have seen setups where they do not have a tank and I guess it works but in my opinion not correct. You can find turbo drain tanks easily. Turbo drains into the tank, tank is vented to the crankcase, scavenge pump suck the oil out.

Would adding a tee to the PCV line on my catch can line to the PCV work as a good vent?

[Grady]

Originally Posted by RT-BRZ

Would adding a tee to the PCV line on my catch can line to the PCV work as a good vent?

Yes on the tank side not the manifold side, What I did was vented mine to the bottom of my Verus AOS so you never have to drain it.

[DarkPira7e]

Originally Posted by RT-BRZ

Awesome. Thanks.

I've been chatting with Alan at JDL and he's reasonably convinced that the WRX scavenge pump relies on a reservoir but I haven't seen any evidence of that.

I'm using a Garrett GTX2860R GenII and it has what I believe is a 3/8 to 10AN fitting in it (I'm sure of the 10AN side) to 10AN hose to drain to the pan. I'm trying to decide which size hose to use to the scavenge pump. I don't have the pump in hand yet so I haven't seen exactly what I'll be dealing with yet.

Thanks to Grady for the size, I missed that.
He's right, you should have a reservoir and pull from that. Mine has been fine, but really it's not something perceptible until it's not fine, I'm just being lazy / curious how long the turbo will manage. Look up images of used 2015+ wrx turbos and you'll see the small rectangular reservoir tightly packed underneath it

[RongTurnRacing]

Originally Posted by DarkPira7e

Thanks to Grady for the size, I missed that.
He's right, you should have a reservoir and pull from that. Mine has been fine, but really it's not something perceptible until it's not fine, I'm just being lazy / curious how long the turbo will manage. Look up images of used 2015+ wrx turbos and you'll see the small rectangular reservoir tightly packed underneath it

OK, well, next step is to figure out a reservoir. I wonder if I could use a oil catch can and feed the turbo drain into it and use the bottom drain to feed the scavenge pump? I'm not seeing anything other than $150+ turbo oil tanks otherwise.

Thanks all.