Did my CCV (crank case vent) mod today. Did it mostly so I could check out my turbo...but Ill talk about that later.
The stock crank case vents into the intake...its known to throw some oil in there and make a mess, plus why would you want crank case gasses entering the turbo.
air filter tube taken off, you can see the vent, its also restrictive.
parts needed....piece of 4" exhaust pipe, brass fittings, new o-rings for the dog house and some 3/4" heater hose.
remove dog house
cut the piece to length
this next bit is optional. I welded around the circumference of the pipe, and ground it down to act as a bead to ensure a good seal.
reason for the new o-rings...stockers were pooched
hose/fittings attached and new o-rings
installed
much less restrictive
installed
now about my turbo......
Been meaning to check it for quite some time now. There isnt any radial movement to speak of, but there is side to side (along axis of impeller shaft) movement. I setup my dial indicator and measured 0.020" (20 thou) of play...spec is 0.00079"-0.00394".....so Ive got about 5 times more play then I should.
I could just slap some rebuild parts at it, but I do not believe thats the correct way of doing it. I believe that an impeller shaft should be balanced after work has been done to it...anything spinning that fast needs balancing.
Looking at getting a turbo rebuilt from a guy from Salt Lake City (Ron Holland) Just a stock housing, but with upgraded thrust bearings, a Banks compressor wheel, adjustable wastegate actuator, and an upgraded turbine wheel. Should eliminate all surge, and last a lifetime
Not looking to make huge power with this truck, it already makes butt loads for my needs, hence the reason for not dropping the dough on a GTP38R.