rasonline

As in the title, what model number is the stock IHI turbo on a Jap spec STi ver 5 or ver 6?

Did a search but not conclusive... seem to think it is the vf28 turbo??

how does this compare with a vf24 turbo i.e. will i get more power from a vf23?

Sc0oby

its a vf28 on th jdm sti

rasonline

Ok, i've also done a bit more searching and that confirms it. vf28 is the one i have on mine.

Thinking about changing the turbo.. probably going mitsubishi td05 20g

Ian

iTrader: (10)

i changed from the vf28 and am now running a andy f td05/06 20g.

what other mods have you got?

Pete

I always thought it was VF29.....

Damocell

iTrader: (1)

Me too.....

Thaken from NASIOC Turbo List

IHI VF29
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger on the JDM V6 Subaru Impreza WRX STi. The VF29 is nearly identical to the VF24, with the same compressor and exhaust housings. However, the compressor wheel in the VF29 has been changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, and as such, this unit is typically chosen over the VF24. Has a different location for the pressure hose on the wastegate actuator.
Expect to achieve full boost with the proper mods and a quality tune between 2900-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

Damo

Ian

iTrader: (10)

when i did my turbo swap, it was a vf28 that i took off, and i all ways thought that was what they were

banny sti

iTrader: (68)

The VF29 is fitted to the V6 wrx and wrx ra, the sti is fitted with the vf28.

Banny