Turbos on Twin Turbo Subaru Legacy/s

[Guest]

 gtlegacy said:

hey guyz sorry to interupt but is this common when i get on the secondary my boost goes up and at about 6000rpm drops back about 5psi it does it when my boost set at 20(yes i know that high) drops to 15 and when it set at 15 drops to 10 is that not weird? or is my wastegate blowing open as i get higher up the rpm? how do i fix? lol

Sounds like boost creep and just leveling out

[gtlegacy]

is there anyway to make it hold boost ? can you preload the wastegate? im guessing it wont make a difference as its blowing it open anyway am i right?

[Guest boostin]

Get a bit of wire and tie them closed...?? ;D

[gtlegacy]

haha but seriously is there naything i can do or am i at the limit of the turbos and they cant make any more oost at higher rpm

[mattapo]

the turboes are the same size, the difference is in what direction the housings point.

to get them to hold try newer ones like a vf 18/19 combo, these use only one wastegate instead of two like the vf 13/14.

Code 66 seams to be a "anything could be wrong" fault.

[Jonnysnow]

so as far as i can tell, the best replacement for a bg5 would be the 26/27 combo? has anyone done this? did you notice much of a difference? and is it a striaght bolt on mod?

[Guest]

I've got a 95 legacy gt twin turbo....pretty sure its got vf13 and vf14 turbos....but which one is on which side?

cheers

[funkytown]

vf13 is primary, vf14 is secondary.

primary is on the passenger side, secondary on the drivers side.

[Guest]

I know this has prob been covered before, but the secondary turbo on my B4 Rsk with the ej208 engine has blown the oil seals and is spraying all through the intercooler, manifold and just about everywhere.

I cant really see the turbo number without pulling the turbo off, would anyone have a idea where to get it fixed.

Best place and best price in Auckland area that wont D**K me around.

I want to eventually convert to single turbo but this will just have to do for the mean time

Thanks guys for any help.

[aim]

The turbos aren't hard to remove mate

[Guest]

I had a look and it has a Vf31 on the primary which is fine and looks to be a Vf32 as the secondary where the compressor housing is full of clean engine oil. can the secondary be repaired ?

[mattapo]

i have a 31 and 32 for sale, pm me

[Guest]

Is there another possibility of using a older turbo as my secondary on my b4 it has a vf32 current but is stuffed, would a vf 18 or 19 work ok if i couldn't get my hands on a replacement vf32

[telemekas]

Yes you can use any of these secondary turbos VF19.VF21,VF27 or PE1018F these are straight bolt on replacements.

The VF19 and VF21 will have less flow than your existing VF32. The VF27 and PE1018F are similar

[Guest boostin]

The compressor inlets on the older turbos is a lot smaller than your VF32.

[telemekas]

All the primary and secondary turbos have the same compressor inlet/outlet approx 47/36mm

The VF33 primary turbo is the exception with larger inlet/outlet approx 60/50mm

[Guest]

I have just found a Vf27 so thats all good, i also wanted to ask about the adjustment rod that opens and closes the control valve for the secondary turbo.

How should it be adjusted, Tight, Loose, just open ?

I had a bit of a play with it but would like to know the best setting

Thanks

[telemekas]

"you can adjust the actuator rod on the ECV to optimise the changeover

start the car cold (unless you have heatproof fingers) and undo the locknuts on the ECV adjustment rod and wind it out until you hear it rattle, then wind it in till the rattle stops and then another complete turn then redo the locknuts.

this allows it to leak a bit of boost on the primary before the changeover actually starts so it reduces it a bit.

you have to play with it a little to get the right amount of leakage or it makes less of a difference or you cant reach full boost on the primary and get poor primary response" Quote ->billsy

[Joker]

billys knew/knows his stuff....

[Guest]

On the twin turbo system coming straight off the 2nd turbo is a little one way looking relief/blow off valve and on top of that is a bit of plastic pipe with a nozzle for a vacuum line to connect to.

I some how managed to break the nozzle in trying to remove the vacuum line, would anyone know what it is actually called so i can try and replace it.

Thanks

[telemekas]

Supercharged ( secondary turbo) pressure relief valve. PN 14471

[Guest boostin]

You mean 14471AA010.

[Guest]

gosh im confused. so my pre facelift 1999 manual B4 RSK has vf26 and vf27?

[pl0x]

 Omegah said:

gosh im confused. so my pre facelift 1999 manual B4 RSK has vf26 and vf27?

sounds about right, mine did

[Dejhon]

I have a 1999(12) B4 RSK EJ206 and both my turbos are blown. What model turbos do I have? Sorry about my ignorance about my car..