I am looking at upgrading my 2001 wrx. I am looking at getting power to to above 300 bhp preferably 330ish. I am going full decat sti injectors, air filter and fuel pump, and have been looking at the vf35 turbo's but have seen a few vf30 for sale and was wondering what the differences are these two turbo's regarding performance and reliabilty?
any info. appreciated.
Regards Carl

 

The VF30 is commonly considered the best bang for the buck turbo in the IHI VF series line. A relatively new model the VF30 features the same exhaust housing as the VF24 but a larger compressor side similar to the VF22. The combination of these two parts results in increased output potential without the lag associated with the VF22. Although it doesn't offer the top end supremacy of the VF22, the VF30 is a great compromise between these unit and the quicker spooling models.

The VF35 has identical internals as the VF30 and it uses divided thrust bearings. However, the exhaust housing is a P15 which means this turbo will have fantastic spool characteristics. This turbo is standard on the new WRX Type RA. LIMITED SUPPLY.

 

Thankyou for your reply, what sort if prices should i be looking at paying for a second hand turbo? 30 and 35

 

That lost me the VF35 is standard on the UK 2ltr STI's, the VF30 was standard on the MY01/02 JDM STI's, The VF34 was standard on the MY01/02 JDM Spec C/Type RA's.
Both were only used on new age cars

Tony

 

copied and pasted from sidc, vf35's havin been going for just short of £300 on fleebay with around 40k miles

 

The VF34 with a P20 exhaust housing would probably be the better choice your proposed list of mods, with a tune of course.