Hya,

I have a 1994 wrx import I have been told it is a tdo5 is this correct, if so what is the maxium bhp it can produce.

If I decided to change it what should I go for?

Thanks Mark

 

If its a saloon WRX then its a TD05, wagon WRX pre 1996 and its a TD04.

with 440cc injectors, decat, FMIC and a remap with 1.2-1.4 bar of boost then 320-330bhp is easily achievable.

 

Hya,

Excellent it is a saloon mate, so must be a tdo5, Thanks for your help

mark

 

Max figure usually quoted is 350 bhp, with a good engine and all the right mods.

 

Hya,

Thanks for the information its a great help.

mark

 

sorry to jump in how much do these 440cc injectors cost and best place to buy from, is getting second hand ones wise or not ? and how hard to fit ?

 

440cc can easily be found 2nd hand from people who've had STIs and upgraded to bigger you may need these though Carl Davey, specialist Subaru Impreza parts supply

 

What year did they start fitting the TD05's then. I thought all imports pre 96 were TD04's. Also what performance gain would be achieved by fitting 440cc injectors and would they require an uprated fuel pump?

 

https://www.scoobynet.com/private-sa...age-setup.html

I am selling mine at the normal going rate in that thread. Stick them in along with the adaptors from carl and job done .

 

TD05 standard on early saloon imports.
440cc will require remap.
Uprated fuel pump is always a good idea on an early impreza

 

If you find an early classic WRX, saloon, with a TD04, then its got the wrong turbo fitted.

440's - Ideally fit an uprated pump as the factory fit one will probably be getting a bit tired anyway due to age on a pre 96.

Also, early classics are 380cc injectors and mine are at 100% IDC from just over 5k rpm

 

Beat me to it.

Forgot to mention, which you didn't, that an ECU upgrade will be required.

 

sort of mentioned it when i said remap but point taken

 

Meh, same thing really at the end of the day.