Confuse Turbo Drain Back Question

[ALVAROG1983]

Quick Question Why Would People Put There Turbo Oil Drain Back In The Oil Pan Instead In The Block Stock Way.

 

[Topjimmy]

Easier to drill sheet steel than cast iron on a non-turbo block....Either way it gets the oil out of the turbo.

 

[bison]

Some guys have so much busyness under the hood with racing setups the only straight shot they can get is the pan. Its acutally a much better place anyway as long as its above the oil level in the pan.

 

[ALVAROG1983]

Reply

Some guys have so much busyness under the hood with racing setups the only straight shot they can get is the pan. Its acutally a much better place anyway as long as its above the oil level in the pan.

WHY DO SAY ITS MUCH BETTER I HAVE THIS KIND OF SET UP BUT ITS A PAIN TO GET TO THE PAN AN FITTING. SO I FEEL LIKE JUST CAP IT OFF AND RUNNING IT BACK TO STOCK LOCATION.

 

[getchasum]

Some people don't want to tap a block so they tap the oil pan to keep from having to tear a block down.

I've also heard some folks claim that don't want to dump hot oil out of the turbo back onto the cam, not sure how much I but that....

 

[bison]

WHY DO SAY ITS MUCH BETTER I HAVE THIS KIND OF SET UP BUT ITS A PAIN TO GET TO THE PAN AN FITTING. SO I FEEL LIKE JUST CAP IT OFF AND RUNNING IT BACK TO STOCK LOCATION.

Because your dumping the oil back in the pan where it should be and preventing it from getting caught up in the rotating assembly. The oil coming out of the turbo is very aerated. Also the stock tubing is barely adequate for the oil return.

 

[1986TR]

Some guys have so much busyness under the hood with racing setups the only straight shot they can get is the pan. Its acutally a much better place anyway as long as its above the oil level in the pan.

i think the key here is "as long as its above oil level in pan":biggrin:

 

[Mad_Trbo]

Lost Power

Because your dumping the oil back in the pan where it should be and preventing it from getting caught up in the rotating assembly. The oil coming out of the turbo is very aerated. Also the stock tubing is barely adequate for the oil return.

Exactly, you guys look at some race set ups and the valley is almost completely closed off so that oil does not slam into the rotating assembly as it drains from they valley absorbing power as it powers through that falling oil.

So for many of the reason listed above and most importantly to me the reasons listed in Bison's post I would always rather have the oil from the turbo routed straight to the pan. On my set up which is experimental and a learning project, I am scavenging the turbo with one stage on my external Johnson Pump.

 

[bison]

Exactly, you guys look at some race set ups and the valley is almost completely closed off so that oil does not slam into the rotating assembly as it drains from they valley absorbing power as it powers through that falling oil.

So for many of the reason listed above and most importantly to me the reasons listed in Bison's post I would always rather have the oil from the turbo routed straight to the pan. On my set up which is experimental and a learning project, I am scavenging the turbo with one stage on my external Johnson Pump.

It will also increase oil consumption if it winds up on th ecylinder walls

 

[ALVAROG1983]

Cool Thanks Guys I Guess Ill Run It Back The Same Way To The Pan.

 

[turbodave231]

I route my turbo drain over to the fuel pump block off plate in the front cover. This keeps the timing chain happy with lots of oil and keeps oil away from the crankshaft. I've seen guys using the Dutweiller oil system route the bypass oil there too.

Dave