Rb26 Vacuum Line Layout

[20SIX]

hey guys

just need abit of help, trying to sort out where all the lines hook up and get them all setup right. (water and vacuum mainly atm)

got a few that im unsure about, have been doing some research in other threads and pics to try sort it myself.

sorry i know this stuff has probably been brought up more than once..

But would be great for confirmation.

i didnt pull it all apart originally, and alot of changes have been made. so want to make sure i have everything right when is back together

basically will run custom lines if is more practical.

i do have some of the steel lines but would prefer to run neat, new lines

line 1 line 2 line 3 (top) and 4 (bottom) lines 5 (left) and 6 (right)

Lines 7 (left) and 8 (right) line 9

basically need to confirm which way to run water and oil feeds and drains/returns for turbo (single)

thanks

[doo doo]

line 1 - I run this to my boost controller solenoid- it won't see vacuum as it's before the throttle bodies. Can't remember where it went in factory setup. The factory boost controller solenoid is fed of the steel line setup, it may have plumbed into that.

line 2- this runs to the water return pipe from the turbos, there's a hard line that bolts to the cam gear cover that joins it to the water pipe that sits above the ex manifold, the turbo water returns feed into this.

Line 3- this runs to the charcoal canister hard line that sits behind the cam gear cover.

line 4- pretty sure this goes the the bov top feed. (splits into two)

line 5- front turbo oil drain

line 6 - rear turbo oil drain - the oil feed is bang in the middle of the side of the block, the water feed is upper right. See photo, my finger is pointing to the oil feed and you can see the water feed above the plug in the upper right. Tip- use the stock fitting if running twins as making a custom one fit is a massive pain.

line 7 - brake booster

line 8- clutch booster

line 9- this is a water line that plumbs back into the steel line, which feeds around the back off the block to hook up with the turbo water return line. Check other photo, it plumbs into the line my finger is pointing to.

Do you still have the steel pipe arrangement?

[20SIX]

Awesome thanks, very handy.

Yeah I have some of the steel pipes, but going to minimize all the pipe work. Running single turbo so less oil an water lines also.

I'll post up a couple updated pics once finished running all the lines, handy for future reference.

Thanks!

[GTR_JOEY]

What did you do with your water lines? How did u run them and block them off?

I made up my own little jig by putting a "Y" piece into those two water lines at the back of the intake manifold, then ran a hard line that I got made from Pirtek around the back of the engine and to the front where the original coolant line joins up....

Then just block the water gallery in the block with a bolt and thread tape...

I dunno if that was the best or easiest way to do it but it's closest I could get it to having to coolant run like a stock system without using dodgy line blocks

Ps my turbo isn't water cooled

Edited January 1, 2012 by GTR_JOEY

[20SIX]

nice that sounds allright.

Not 100% yet ill be looking at it more tomorrow, but my thoughts were possibly..

-running water feed from the block.>turbo

-running water return from turbo and the line 9 from my pic, into water return fitting (line 2 in pic), will look at which way will run the lines and what lines too use yet.

-maybe run from water feed line near thermostat>oil cooler/heater> firewall/heaterbox>water return line rear of block beneath intake manifold

and obviously block off one turbo oil return on block

ill update with my final setup and pics when done too

[20SIX]

ill post some pics up tomorrow for what i ended up doing for water and oil lines

[GTR_JOEY]

good stuff, i like it when people keep us updated on problem solving

[20SIX]

hopefully its understandable and not too confusing, but hope this helps anyone else in future too.

thanks for the guide and info, much appreciated. made it much easier.

the lines still need to be tied down in places yet, and also the manifold is not permanantly on yet. but you get the idea anyway

[GTR_JOEY]

Thats pretty much how i set up my water lines

my turbo isnt water cooled so instead i just ran that water line that youve put a "y" (i also used a similar Y intersection) piece around the back, past the turbo via a hard line i had made up at pirtek and then into where u have it...

then i just plugged that water feed/drain at the rear of the block on the turbo side..

if i had a water cooled turbo i woulda ran the lines the same as you have

[20SIX]

Yeah your setup explanation was very helpful, I had my oil feed line made by pirtek also.

Much appreciated!

[20SIX]

Yeah your setup explanation was very helpful, I had my oil feed line made by pirtek also.

Much appreciated!

[GTR_JOEY]

glad to help