Coban

iTrader: (14)

Exactly how mine was. On a 2wd it is actually, by far, the easiest place to tap. Never had an oil-draining issue. Never had any blown seals. Did not have any restrictor on the turbo oil feed either. I used a 90* street elbow then screwed the hose barb fitting into that. I did reinforce it with that "steel" putty stuff just for peace of mind.

asb2106

iTrader: (2)

Is this because of a larger crank pulley? I dont think I will have the clearance on my motors to tap the return lines into the front of the tank. I feel like my pulley is right in the way. I have a 2000 ecsb 2500 2wd that had a 5.3 in it, I took it out to put in a built up 4.8 i have that I am twin turboing.

Both the (2000)5.3 and (2005)4.8 (came from 3500 work van) were 2wd, and both seem to have a larger pulley on it. Do I need a different pulley? Will that work ok with my accessories?

Thanks for the pic Rick!

Im hopeful I can use the same setup..

How are your turbos holding up with the 3/8 npt ?

I was going to run 1/2" NPT to 1/2" hose barb and run it in that way.. but I was worried about it being too small. 3/8 work ok for you?






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I am running a high pressure high volume oil pump and will be running a 1/4" feed line to the turbos with a small restrictor. Not sure on size. Im running some cheap chinese journal bearing oil only turbos. And im thinking im just going to drill out the restrictor..

With the HP/HV pump should i keep the restrictor in, and will the 1/2" drain suffice?

charcold-bowtie

iTrader: (10)

Most journal turbos dont need to be restricted. Also, -4 is a lot of feed.

And no, A proper drain will not fix an overfeeding problem.

asb2106

iTrader: (2)

ok thanks for the heads up Ill drop down to a -3.

Any info on the crank pulley?

charcold-bowtie

iTrader: (10)

Ive never seen any difference in any of the stock crank pulleys on truck engines. I am aware of no differences, although they may exist.

edit. The difference he speaks about above are probably differences in the steering. Box vs rack and pinion. Just a guess. I drilled two recently, and posted a pic here somewhere. I did them on the truck, 4wd, came out very nice.

1rd edit.

Atomic

iTrader: (42)

I disagree slightly about oiling turbos...its nearly impossible to over-oil a journal bearing turbo. Basically all of the oil related problems are actually drain problems. Mostly too small of a drain line or not enough height difference if gravity fed.

Stay with the -4 feed. I am actually upgrading my feed to a -6 since the line is 5' long.

asb2106

iTrader: (2)

good to hear, i had bought flanges with -4 fittings on them already.

-8 drain sufficient?

Atomic

iTrader: (42)

I would do at least 5/8 (-10)

asb2106

iTrader: (2)

just out of curiosity, has anyone used the factory oil cooler block off to feed or drain back a turbo?

TrickTurbo

iTrader: (12)

Can not be used as a drain. Both sides of that block are pressure.
We use to use -8. Problems when it gets cold.
-10 works great just make sure it drops as straight as possible.
We use -3, -4, and -6 depending on the turbo.
No need to run larger then needed.