Ok i have been looking into a lot of different ways to go and i think i know one of 2 ways but was just wondering if anyone knew which set up would spool faster???

05 wrx with supporting mods:

Helix Tmic
Up pipe/downpipe/ cat back
Sti Injectors/ Fuel pump
Perrin Pulley
Tuning

with either the fp 16g or vf34???

Which will be better for autox with the supporting mods listed???

 

A lot of it depends on the tune, but the spool up characteristics for the VF34 will be slightly better than the 16g. The 16G will also have a better top end whereas the VF34 performs best in the midrange of the powerband.

As for which would be better for autocross, I'll wait for someone else to chime in on that one. I'm sure there's a few Stage 4 people out there into the autox scene with some better knowledge on the subject.

 

I will be going to either Vishnu or Grupp-s for the tuning

 

Go to next autocross event and talk to the guys there of your set up. They are helpful.