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hey guys,

Need to borrow a bit of knowledge from some RB experts :) . Over the last few months in my spare time ive been building up a 4WD RB25det for my R32 GTS4. I have installed a greddy type front feed plenum and its made things a little extra confusing for me now that i need to connect all the water lines.

in this picture you can see the turbo water line coming around the back of the head. I am using one from an RB20det, notice it splits into too lines. I'm unsure if i need both the lines now that im using the greddy, so im guessing i might end up blocking the top one off? For now, you can see i have connected the bottom line to the closest connection, just for science. Anyone know where it/they are supposed to go?

PICTURE 1:

post-32703-1193049199_thumb.jpg

in this picture you can see another part that needs connecting... any clues?

PICTURE 2:

post-32703-1193049261_thumb.jpg

in this picture you can see the last 3 water connections i need to complete... the green plastic one and the other 2 metal ones. I have blocked off the small top metal one as instructed by this tutorial from strich9. this leaves me with another 2 lines i need to connect...

PICTURE 3:

post-32703-1193049306_thumb.jpg

help would be greatly appreciated ;)

2nd pic and last pic big fitting are heater hoses. Green plastic one isnt a water connection, its the knock sensor

thanx, i cant remember where to join the knock sensor then? also im guessing to join the heater hoses its going to be a little different than normal due to the fact its goin in a 32.

Edited by zertek

And the first pic, needs to go into the back of ur intake.

Mine actually doesnt have a T peice. its just a straight pipe, form the intake around the back to the turbo.

Probably would be better to do it this way, as the heater has flow from either side of the block. With the T peice you are just tapping the heater system into the turbos watercooling system.

And the first pic, needs to go into the back of ur intake.

Mine actually doesnt have a T peice. its just a straight pipe, form the intake around the back to the turbo.

Probably would be better to do it this way, as the heater has flow from either side of the block. With the T peice you are just tapping the heater system into the turbos watercooling system.

yes this is what i suspected. If the rb25's only have one line then im sweet to block of that top one. cheers

connect that large one back to the water/oil cooler.

As Adriano said green one = knock sensor

not sure which large one your talking about?

And the first pic, needs to go into the back of ur intake.

Mine actually doesnt have a T peice. its just a straight pipe, form the intake around the back to the turbo.

Probably would be better to do it this way, as the heater has flow from either side of the block. With the T peice you are just tapping the heater system into the turbos watercooling system.

i cant connect my turbo water line to the intake as the greddy doesnt have anywhere for me to connect it. on this tutorial it isnt very clear but it appears he has tapped the turbo water line into the small nipple on the heater hose connection? i assume this would be ok as the water would be the same temperature all around the block? or is there a cooler source of water i can tap into?

Remember this below? It's the turbo water line that went into the back of the stocker plenum! (yes, we gotta hook it up!)

PlenumInstall%20034.JPG

Use our bit of fuel line, and some ingenuity, and extend the water line to the nipple below. You'll see what I mean. It's hiding.

PlenumInstall%20035.JPG

i cant connect my turbo water line to the intake as the greddy doesnt have anywhere for me to connect it. on this tutorial it isnt very clear but it appears he has tapped the turbo water line into the small nipple on the heater hose connection? i assume this would be ok as the water would be the same temperature all around the block? or is there a cooler source of water i can tap into?

Hi mate, yea you could probably get away with it. possibly check with someone whos done it, or someone more experienced to be sure.

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