Oil And Water Supply/feed For Top Mount Gt3076r Turbo

[anthonymcgrath]

hey guys

I've done some reading on here and found a post or two by a chap called kyle but I'm a little lost here - I originally thought the pipe that ran round the back of the rb25det engine was the water supply but reading on it seems that the water return pipe.

Can anyone tell me where the water supply pipe comes from to the turbo please?

Also The oil supply/return pipes if thats possible? I'm guessing they're the same as the ones in the manual - however I've got an issue in that I'm fitting top mount turbo (gt3076) so I'm concerned that I'm going to have to make my own lines and tbh I've no idea how to go about that either.

any advice and pictures with big 'this one you sockpuppet' you guys could supply would be brilliant thankyou

ant

[WilYawn]

Not very good at explaning this stuff since english is not my native language but these pictures might shed some light

Water feed and return:

Oil feed and return:

[WYTSKY]

The thing is, you can source 2 water lines from anywhere and hook them up, the system will continue to flow, so not a big deal. I t-pieced off something around the intake plenum, can't remember exactly, possibly one of the lines that run through it to warm it up and the other just went back into the correct spot in the block.

oil feed/return are simple, feed is the small one, half way up the block, return is the bigger one at the bottom.

Now, for this turbo, I have been told you cannot use stock oil/water lines as they dont flow at the rate this turbo needs + if your going highmount there is no way you can use them to fit with it....

you are going to need speedflow fittings.

http://www.speedflow.com.au/

look up if there is a pirtek is near you, they will be able to source everything you need. http://www.pirtek.com.au/

gl with it.

Adam

[aleks]

I ran the water return to the heater lines, which i chopped up/got rid off.

[anthonymcgrath]

thanks guys

@wilyawn - thanks for the manual shots - I'll take a look at mine - so the feed is coming from the bottom and the return goes to the top do I have that right?

@wytsky - I really dont want to try and tap into any plumbing - I'd rather use the spots on the block if possible. There is indeed a pirtek near me - I'm taking it that I would be able to phone them up and see if they can come out and have a look at the car?

@aleks - thanks for the pics - that seems pretty hefty there altho I'm still not 100% sure which are which mainly because I'm not sure which holes the pipes are going to on the turbo ?

[aleks]

Looking at the turbo from the exhaust housing side;

at 12 o'clock is the oil feed (as shown in the third picture)

at 3 o'clock is the water feed (can't be seen)

at 6 ... oil return (notice its alot bigger line/fitting, goes to bottom of the block

at 9 water feed

[anthonymcgrath]

aha thanks aleks

wow thanks mate - I just got chance to check these pics outside of work on a monitor that doesn't seem to blow out the image lol! I can see the red txt with which pipe is which! Thats a really great help thankyou!

so basically the water is travelling upward and the oil is travelling downward do I have that right?

really really had best go bed now heh!

[anthonymcgrath]

one of the guys on the uk forum skylineowners.com recommended earls here in the uk. It worked out at £70 for the water lines with AN fitting and adaptors which I really like the sound of vs using the original banjo bolts stuff. I think thats the route to go for me as I like the idea of easy screw/unscrew fittings for the lines. not sure if they can do oil lines too altho I would think I should use the original ones is that right?

[Sir Lord Van Von Vader'ham]

I ran the water return to the heater lines, which i chopped up/got rid off.

Does anyone know where you can source the fitting on the back of the head in the middle pic? Whats it called? (for the oil drain)

Cheers

[rad100]

do u need to cover the braided line to protect it from heat?

the blue hose u get from the turbo kits for oil drain, does that also need to be protected from the manifold?

[rad100]

Does anyone know where you can source the fitting on the back of the head in the middle pic? Whats it called? (for the oil drain)

Cheers

that can be purchased from tweakit!

[rad100]

http://www.spoolimports.com/content/SPOOLR...OilDrainKit.asp

[muchogarcia34]

For my water line I used the water feed just under the stock one on the turbo side of the engine. It had a plug in it so I removed it and my lines tapped straight in. Will this be okay?

[l0WRB]

not sure if rb25 blocks are same as rb30 but dont get ur water feed and return both from the exh side of the block cause its not a circulating flow thru the block and u will kill the turbo.. seen this happen twice with gt3582 turbos, not cool! hah

[muchogarcia34]

Well that sucks................ I'll have to change that................ So do I just take one of the lines to the standard connection point on the intake

[anthonymcgrath]

hi guys I thought I'd update this thread and show my progress... I've got my oil feed & water lines sorted now heres a few pics below.

theres plenty of play and space in the lines so I can route them around the downpipe or under it whatever I need really...

just interested in this one... I'm not sure whether I can tighten this fitting down because theres a restrictor in the turbo. You can see the gap between fitting and turbo. Should I fit a washer.

this is my water return line - its coming off the turbo, around the back of the engine but from there I'm a little stuck... any suggestions? The pipe with the green arrow on it I think is the water return line. When I had the front entry on this pipe was connected to the coolant bleed valve (that screw you undo a little after putting coolant in and bleeding the system). Anyhow I think this push fitting just goes into there but not sure?...

oh one more thing... my connectors for the water lines have 2 washers... should I put one either side of the banjo bolt adaptor?

now I just need to sort out the oil return line. I think the oil return fitting off the td05 turbo I have should fit this turbo and then I just need to make a pipe down to the oil return port on the block.

Edited August 28, 2010 by anthonymcgrath

[JonnoHR31]

yer put 1 washer either side of the banjo

the water return fitting is a steel line sticking out the back of the plenum, in standard form a rubber hose goes onto this then goes around the back of the head where it joins a steel line to the turbo

[anthonymcgrath]

will adjust washers tomorrow thanks

thanks mate but I'm fitting a greddy plenum at same time so stock location is no good for me I think unless greddy plenum has take off point for water return line for my top mount turbo?

I've been reading the greddy plenum how to on here....

he blocked this line off or returned it to somewhere where water plumbs back in!

I think the point where he's plumbed it back in is the same one I'm holding in my video on youtube?

my engine prior to plenum fitment on youtube

Edited August 30, 2010 by anthonymcgrath

[rad100]

hey anthony,

im at the same point as you with this..

3076r - highmount...

now issue is i have rb25det in my r32 so less room!

issues im having are...

oil feed runs down the middle two manifold runners.

oil drain has MINIMAL room to run down strut tower to block.

anyone know if it will be ok to run the oil feed down here with that heat proof tube stuff and the oil drain with that stuff too?

[75coupe]

I will be using similar routing for the oil feed line and Im using the flame proof sleeve from mscn...

http://www.mscn.com.au/scripts/prodView.asp?idproduct=495

it was recommended to me by another SAU member...

nice wrap job on the manifold btw..