R32: Installing Rb25 Turbo

[predator]

I have placed up a full tutorial on this, from start to finish.. This question gets asked regularly, so it was about time *somebody* did it and wrote up exactly how they did it..

Due to the server here always losing my images for any period of time, I've decided to put it all on my project website..

http://www.project32.net/tutorials.php

Photos aren't actually up yet as I am still resizing, etc (and there are quite a few)... but for now you can read through. They will be up in a few days.

cheers,

Gordon

[eXc]

I just used predator's guide yesterday and did my conversion. I just thought I'd post a few things that I have found.

Predator, feel free to use them in your guide if you agree.

1) Drop the coolant in the normal fashion before un-doing the water lines on the turbo (so drain from radiator) You are going to lose it all anyways, this way it's not as messy

2) I had to change water lines (89 GTST 4 door) and I can now tell you how you can work it out BEFORE you go to all the effort. Predator pointed out you need a 24mm socket for the water lines...well mine were 22mm, which obviously means it was a different size! So... you just need to get to the water lines and see what size socket it is. You still will have to remove the intake pipe, but it's only a 15 minute job to check to save you either stress or money about if you will need them.

3) I put the nipple onto the compressor housing and it is working fine. So if you are likely to change FMIC pipes it may be a better option *shrugs* up to you, apparently there is no performance difference by putting it in either spot.

4) Clean your water lines while they are out (if you take them out)

Cheers

Chris

Edited January 15, 2007 by eXc

[gt-t_r34]

i went off this guide its great so helpfull good job mate. i found that to get that tricky line off close to the engine where you had to take it off the block instead. you can take that oil line off next to it the rollercoaster one like a loop d loop! and you can undo that water line off the turbo instead of taking the whole line off the car.

[MANWHORE]

i went off this guide its great so helpfull good job mate. i found that to get that tricky line off close to the engine where you had to take it off the block instead. you can take that oil line off next to it the rollercoaster one like a loop d loop! and you can undo that water line off the turbo instead of taking the whole line off the car.

BINGO! that's spot on the money. that's the way i do them too. It's easy to get the line off from under the car once you take the oil line off.

you don't even have to take the oil line off - you can do it with the oil line on, but it makes it a lot easier.

[GTScotT]

hey just did this a couple of hours ago

few things i noticed

make sure u take off the oil return first, i forgot all about that until i went to take if off the car,

i left the dump pipe on the turbo and just undid the 3 bolts going to the front pipe, then when i installed it, i put the turbo back in the car with my new just jap split dump and front pipe attached to it,

the stupid line at the back of the turbo i could get a spanner on, yet couldnt be stuffed turning it that many times to get it off, so i undid the turbo from the manifold, carefuly slid it forward then used a socket and ratchet to take the line off, put it back on that way to (ratchet on, then bolt turbo to manifold)

i also took the actuator off the turbo while still in the car

also when i undid the oil drain, i undid the 2 12 mm bolts off the turbo instead of the flexible pipe

[Grunter]

Just a quick question can you do the same upgrade with a R34 turbo onto RB20

Like do the oil / water lines fit and does the dump pipe bolt straight up?

Any help would be greatly appreciated thanks in advance.

[Lock_to_lock]

Sure can mate, their the same. I had a 34 neo turbo on my 20. Great upgrade!

[Grunter]

Cool so they fit,1 more quick question from what I understand the only difference between

33 n 34 turbos are the exhaust turbines are a touch bigger to make more power there 4

can I use a RB20 wastegate actuater and will it fit onto the 34 turbo?

[Lock_to_lock]

Yeah, use the RB 20 actuator. The RB25 actuator is set to something like 4psi.

There are a few differences with the turbos. A series 2 r33 turbo is the same as a series 1 r34 turbo. The both feture the nylon (i think thats the name for it) impeller wheel. Helps it to spool faster.

A series 2 r34 turbo has the same impeller wheel but has a OP6 rear housing. The rear housing is similer to the size of a VG30 turbo. You might see a little bit more lag with the bigger rear housing on the RB20.

[BigC1988]

Im just planning to change the gasket (turbo to manifold). Noqw can this be done wothout removing the water and oil lines? Planning to do this tomorrow.

[JD_CEF]

hmm interesting

but i want vg30 instead lol, had that on a 20 before and liked it better then 25

[spranga]

Bookmarked your project website. Thanks

I have placed up a full tutorial on this, from start to finish.. This question gets asked regularly, so it was about time *somebody* did it and wrote up exactly how they did it..

Due to the server here always losing my images for any period of time, I've decided to put it all on my project website..

http://www.project32.net/tutorials.php

Photos aren't actually up yet as I am still resizing, etc (and there are quite a few)... but for now you can read through. They will be up in a few days.

cheers,

Gordon

[sickr33]

put a rb25 neo turbo with screamer pipe on my mates r32

good upgrade bit more lag but stronger in the top end

50mins to take old turbo off

1hour 10mins to put the new one on

[jahn-15]

What line and where do i put the nipple? Coz we bolted the turbo up but its running rough like i missed a vacum line or something?

[Pr0x1mity]

So, going by this thread R32 and R34 oil/water lines are interchangeable?

This will help me heaps in my Rb25De+t (using an R32 turbo for low boost)