Pitzi

Hello people,

I would like to know if fitting a VF34 turbo to a JDM Impreza WRX STi Version 6 is a worthwhile exercise?

This is a list of mods on the car at the moment:
K&N cone air filter
Carbon fibre airbox + cold air induction
SAMCO Silicon inpipe + intercooler piping
3” polished stainless exhaust system + twin downpipe
MRT bigger top mount S/S intercooler
MRT 400hp fuel pump
MRT Fuel rail + fuel pressure regulator
MRT Intercooler water spray system
ECUTek ECU Re-Map (V2)
GFB lightened pulley set
Leaded compatible Lambda sensor

My other question is, what injectors does this car have?? I see Gruppe-S sells packages that inclu STi 565cc injectors with their VF34 turbo`s, but I am not sure of what size injector the Version 6 uses??

The current turbo is the std VF28 unit

Thanks in advance

RoRu

I think it will have 440cc injectors, what turbo has it got VF28?

TonyBurns

iTrader: (3)

Your car has 440cc injectors as standard, and depending on what you want to do (power wise) depends on what turbo you should fit, though most will tell you that tbh there wont be that much difference in changing the turbos, but as stated, it depends what power your after.

Tony

Pitzi

The turbo is currently a VF28

I am getting 225bhp at the wheels

TonyBurns, as much power as safely possible!!

WUZ

iTrader: (14)

Sti Gruppe-S injectors are top-feed from the bugeye/blobeye STi's whereas yours are side feed (440 AFAIK) so you'll need an adaptor kit to fit them (working on one at the moment)

Russell

ps - Scoty can do 550's for you for about £275 if that helps

Pitzi

Yes they are 440`s

Wouldnt they be able to cope with a VF34?? I already have a MRT400hp fuel pump and the uprated MRT fuel rail on there

dowser

I'd say swapping a vf28 for a vf34 is pretty worthless. Power gains would be pretty limited. Go for an 05/06.

A custom remap would also be beneficial, even with the vf28. How much boost are you running currently?

Richard

Scott.T

iTrader: (2)

AFAIK the VF34 and VF28 are trhe same beast. The only difference being the actuator cracking pressure.

john banks

24 and 28 yes Scott. VF34 is different, but not sufficiently different to want to change IMHO.

Scott.T

iTrader: (2)

Doh, getting my 2's and 3's mixed up....cheers John

Pitzi

around 1.3 bar, but doesnt hold to redline

wrxtasy

Hi Gerardo,
long time no see mate,i decided not to sell my97 wrx and will be coming down to joburg anytime next year, i ordered a TD0518G from deadbolt instead of the VF34. Is Richard from Nxgen around, i've tried emailing him but his inbox is full and his cell keeps going to voicemail? I wanted to know whether he can map the apex-i power FC for my car as i also have that on the way, anyways good to see you around,

cheers,

suhail

Pitzi

Hey man, long time no see!!

Good to hear you are well, so you decidedagainst the 6 hey?? Good choice - I wouldnt have touched that car

Richard is away in Mozambique as far as I know he will only be back in January

You have to be a bit patient now (know how it feels....)

Pitzi

What about a VF23 or VF22??

StickyMicky

you can convert your vf28 to a vf 23 by changing the hot side for a p20 houseing
later spool, but more power

its a shame your in south africa as i have a p20 houseing spare in the garage

wrxtasy

Ohhh, no wonder hehe, no problem i'll phone him in a couple of weeks then
thanks for the e-mail , will reply soon G,

cheers,

suhail

Pitzi

Thanks mate, real pity about the distance when modding Scoobs here, you can get quite a lot here but freight and import duties are a killer