Primary Turbo on B4

[Guest]

Hi All ,

Ive just blown my primary turbo on my 02 B4 and bought a new replacement which i was told was a primary turbo for my car but... the one i pulled off has vf33 on it and the one they sent me is a vf31... although im pretty sure it will fit the compressor side seems to have a smaller inlet and outlet...

Any ideas if this will still work and get the same performance??????

Thanks ,

BLKB4

[D-Style]

If its a primary for you car, it will work. You may/may not notice a little bit quicker spool up and little less puff before the VOD.

I change my Primary from my BE5C to one from a BE5A (think it was VF31 to a VF26???) Mainly the first version of the Gen III had the "biggest" primary turbo of the A~C models.

Didnt notice much of a difference...

[Guest]

ok great thanks so much for the info, ..... the exhaust side looks to be a direct bolt on but the inlet and out let of the compressor look to be smaller so im not sure how to make the pipes fit...

[Jord]

Yes VF33 is unique amongst the all the OEM twin turbos with a larger compressor inlet. You may away with making an adapter sleeve to fit over inlet but probably easier to just get the correct turbo.

[Jord]

 D-Style said:

If its a primary for you car, it will work. You may/may not notice a little bit quicker spool up and little less puff before the VOD.

I change my Primary from my BE5C to one from a BE5A (think it was VF31 to a VF26???) Mainly the first version of the Gen III had the "biggest" primary turbo of the A~C models.

Didnt notice much of a difference...

Other way around you will have slower spool-up on VF31, VF33 has the fastest spool having a very small exhaust housing but runs out of puff pretty quick.

[Guest]

mmm ok.... still undecided what to do.... vf33 seem to be rare and expensive

[sexcyb4]

wana sell your vf33 haha