standard boost? Tubro Choice? VF8/VF10/TD04?

[Bazza-NZ]

Hey

Anyone know what the 1992 single turbo came out as in standard boost setting? and what turbo they were running? any help would be appreciated

Cheers

Model : GT

Engine: EJ20

Year: 1992

Chassis : BF5

[DRFVDR]

manual or auto

manual=vf10

auto=vf8

boost about 9psi me thinks(been awhile)

[DPI]

I had an auto '90 GT and it was 10psi factory, but wound up to 15 with no probs...

[Bazza-NZ]

Sweet, Yeah mines a Manuel

i knew something was different I've got a TD04 turbo in mine

[G-unit]

from what ive read tdo4 aint a upgrade as there very small anyway, try a vf8, my rs is running half bar solid so around 7-8psi

[Bazza-NZ]

 G-unit said:

from what ive read tdo4 aint a upgrade as there very small anyway, try a vf8, my rs is running half bar solid so around 7-8psi

Yeah it's boosting only 7PSI at the moment (due to current setup)

What rpm range should the turbo start kicking in?

[KwS]

7PSI would be wastegate pressure would it not?

[Bazza-NZ]

 KwS said:

7PSI would be wastegate pressure would it not?

yup and i know why that is, its because the pipe is going straight from turbo to wastegate (which will have 7PSI spring/membrane)

Yeah I've still got to plumb up the factory boost control, I've just left the setup remain from previous owners while i fix the rest of the mistakes

[G-unit]

anyone got a pic of how it should be as mine is hooked up2 factory unit now and only 7-8psi

[Bazza-NZ]

i found this on the web this might help you out, currently mine isn't even plugged in at all so you should at lest get 7PSI, this happens when the turbo is directly linked into the wastegate

[Bazza-NZ]

ok so i hooked mine up today and it has some interesting effect, none if which i was expecting...

Firstly in low gears to would boost up to 15psi (then boost cut occur's) and if i put my foot down it would go over factory 9/10PSI and just contnue to climb (i'd assume really high but i stopped before it got the chance), if i slowly speed up it would hold at 9PSI (like it should)

Any idea guys? do i need to use special sized pipes? is there something in the pipes? if so what and what pipe(s)? i'm lost for idea now, i could just take it down to Armstrong Subaru and get them to have a lot at it but i'd rather try myself first (with some input)

{FIXED PROBLEM}

[Bazza-NZ]

Now i have 3 turbo sitting on my desk and i have no idea what to choose, trying looking up spec and information but no real help

I've got a 92 GT wagon, I'm not looking for huge amounts of power (not yet anyways) but after something that will give a decent amount of boost, bee reliable enough. Mostly just use the car in the weekends to travel to sport and cruise a bit.

At the moment I've got the TD04 in as this is what i got the car with. but it seeming a little tired so buying my mates so i'll have 3 mint turbo to choose from. so the question is which one for me?

TD04

VF8

VF10?

after i make up my mind the other turbo's will be used for my project cars exhaust setup is WRX headers and 3" from turbo back

if anyone know a good link to read with spec for them that would be great, found some hear say but nothing factual

[zarnah]

sell all three and get a td05

[BC5RA]

Fact;

IHI VF10 = GT automatic

VF8 = RS/RS type R/RS type RA

VF12 = AUSDM fitted Liberty RS Turbo

If you had to choose from a VF10/VF8 or TD04 i'd choose the VF8

[zarnah]

 

Fact;

IHI VF10 = GT automatic

VF8 = RS/RS type R/RS type RA

VF12 = AUSDM fitted Liberty RS Turbo

i find this strange as I have owned two rs legacys (one current) and both had the vf10 on them, also have a friend who has owned a couple and both his also had the vf10, yet the two gt legacys I have owned (one auto, one manual) have both had vf8 turbos on them?

[BC5RA]

They have been around for 20 years now, don't you think that during this time they would have failed and been swapped.

As knowledge on these car was thin on the ground people would have just swapped them around.

Don't take my word for it; use google.

[Guest 4wdftw]

iv done the research..

vf8- manual

vf10- auto

these are factory specs

[Bazza-NZ]

Thanks everyone for your help

[G-unit]

vf8 ftw,

wana try and see what mine actualy is 1 day