What turbo do I have on my car?? Is it still a VF35 as used on Blobeye STi's or is it another that they now use with the 2.5 engine in the 2007 STi.


Cheers,
Grant

 

could be a twin scroll turbo.

 

the older model 2001-2005 2.0L had VF34

the 2.5 L cars USDM and the new EUDM 2.5 cars have VF39

 

my06 2.5 is a vf43 for sure as ive just changed it

 

Or 35 just like mine

 

Ok, so what are the details/limits of a VF43 then?? Is it roller bearing?? What are the boost limitations?? Is it twin-scroll??


Cheers,
Grant

 

i dont know that answer all i know is my vf43 was maxed at 343bhp before i had it changed by paul at zen

tony

 

You arent mad for keeping your warranty are you?!

Interesting you maxed out at 343bhp, I know of someone that managed 370bhp from a Ported VF35 on a MY05 STi.. I was hoping that the VF43 would spool 350/350 reasonably comfortably on the 2.5 STi engine.... Thats a bugger!!


Cheers,
Grant

 

Not a twin scroll, normal single scroll, then your problem is not how much the turbo can take but how much the pistons can take before they break as their design isnt exactly brilliant (unlike the 2ltr which is stronger )

Tony