cdr vacuum with gm 8 turbo [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: cdr vacuum with gm 8 turbo


fierce legend
03-18-2010, 05:00 PM
All I have is the intake the pressure chamber the turbo and exaust mainfold for the turbo side Only.

How do I get negative pressure inside the oil pan and valve covers?
I dont have anything for the intake of the turbo. Just the aluminim part that feeds the air and maybe a filter could go on the outside but were would the cdr thing hook up.

Trios
03-18-2010, 05:04 PM
CDR hooks up to the intake pre-turbo. I don't know hon your specific vehicle how you would need to mount this, but it goes from the intake to either the oil fill tube or the valve cover with the CDR in between. You'll need a CDR from a turbo-powered 6.5 also as they are calibrated a bit differently.

4320Diesel
03-18-2010, 08:24 PM
if you need an idea for an airfilter design ill give you a picture of mine. i couldnt find a conical filter so i got a cylindrical filter for a tractor and put it on a toilet adapter and then made 3 pieces of all thread bolt it on using a plate on the other end. works beautifully.

http://i644.photobucket.com/albums/uu162/4320diesel/turbocharger021.jpg

http://i644.photobucket.com/albums/uu162/4320diesel/turbocharger020.jpg

http://i644.photobucket.com/albums/uu162/4320diesel/turbocharger019.jpg

http://i644.photobucket.com/albums/uu162/4320diesel/turbocharger026.jpg

http://i644.photobucket.com/albums/uu162/4320diesel/turbocharger009.jpg

Diaric
03-19-2010, 12:22 AM
i don't have a recent pic of cdr with gm turbo, so check out my video. will it work correctly, don't know yet, but i think so

http://www.youtube.com/watch?v=p6y_N0wLTq8&feature=player_embedded

sls639
03-19-2010, 09:33 AM
Sweet lookin' engine! That CDR setup looks like it will work perfectly to me. The only improvement I could think of would be a c**p catcher after the CDR, before the intake.

4320Diesel
03-19-2010, 09:35 AM
i forgot. what was that thumping in the intake caused by? was it a faulty lifter or something?

Diaric
03-19-2010, 09:42 AM
bent rocker assembly so one exhaust not opening.. probably from PO using ether

4320Diesel
03-19-2010, 09:44 AM
i thought the engine was rebuilt. how did the rebuilder miss that?

Diaric
03-19-2010, 09:47 AM
because i wasn't wearing my glasses and its very hard to see it till your looking for just that. the old style cast ones with lots of springs and 4 rocker arms in the way

4320Diesel
03-19-2010, 09:48 AM
lol. looks like whenever i build up a 6.2 its getting new pushrods.

Diaric
03-19-2010, 10:01 AM
pushrods are cheap, but that wasn't the issue. the rocker assembly held in by nylon bushings on yours, i used the older cast ones was