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240sxrb25
12-19-2011, 12:11 PM
i have an 1998ish rb25det NEO with greddy intake which does not have the water feed port for the turbo like the original manifold. i know this has been discussed for years but i cant find the info i need. its been a while since ive touched the car so bear with me haha.

i will be compound turboing it with one turbo that is a ball bearing turbo. this turbo will be oiled and water cooled.

the other turbo will only be a journal bearing. it will only be oiled.

what would be the best way of routing the water line for the first turbo? i know where the port is on the lower/rear exhaust side of the block. i need to know where to run it on the other side.

next, what would be the best way of oiling the 2 turbos together? i will not be midmounting anything so i wont need a sump/pump setup.

thanks for all the help/suggestions. meanwhile ill be readin up on diesel and supra boards.

-jason

!Zar!
12-19-2011, 01:04 PM
I'm not familiar with that type of setup, but make sure to remember that the ball bearing turbo needs to have the oil restricted, while the journal bearing one does not.

Personally I would not run the water lines to the turbo at all and just make sure that you allow the turbo to cool down after driving it hard.

Diesel? Bro truck? Pics and specsssssssssssssss

240sxrb25
12-19-2011, 03:10 PM
truck? haha s13 dude.

ok so no water to the ball bearing turbo? i ma need a couple more ppl to chime in about that one.


i gues i just need to know if i can run one oil feed line and split it somewhere

!Zar!
12-19-2011, 03:12 PM
truck? haha s13 dude.

meanwhile ill be readin up on diesel and supra boards.

-jason

Figured diesel = truck.

240sxrb25
12-22-2011, 05:20 PM
so anybody have any comments on the guy who says not to run water to my ball bearing turbo?

thanks

AS240
12-23-2011, 11:50 AM
http://zilvia.net/f/media-forum-pictures-videos/423024-compound-turbo-rb25-s13.html

i'd pm this guy. he seems really cool and willing to help.
and if you can run water lines then i would, especially if its ball bearing.