Considering a Classic STi Wagon...
08 August 2017, 04:59 PM
#31
Scooby Regular
A few little notes on turbo's.
STiv1 and v2 came with TD05 16g turbo's. Good for 350bhp but spool a little late on a 2l. Whoever said the torque was better on the v1/2 earlier cannot have been comparing stock cars as it's impossible given the turbo's involved.
HI-VF23 Turbocharger Assy.
Originally used on Ver.3 STi models. Also used on the limited production 22B. Similar to the VF22 but with a slightly smaller compressor side for better response while sacrificing some top end performance. Good compromise turbo that will work well in a variety of situations. Has considerably less turbo lag than the VF22 as this turbo will start to come on boost at 3000 rpm, and by 3200 rpm is capable of 20 psi @7000 rp
IHI-VF24 Turbocharger Assy.
Essentially identical to the VF29 and VF28. The VF24 was originally used on the STi Ver.4, the VF28 on the STi Ver.5 & 6 and the VF29 on the JDM WRX's of the same period. This turbo uses a P18 turbine housing and relatively small compressor for fast response and excellent low and mid-range performance. Ball bearing center section. Excellent bolt-on replacement for the standard WRX turbo on cars without any other major modifications.
STiv1 and v2 came with TD05 16g turbo's. Good for 350bhp but spool a little late on a 2l. Whoever said the torque was better on the v1/2 earlier cannot have been comparing stock cars as it's impossible given the turbo's involved.
HI-VF23 Turbocharger Assy.
Originally used on Ver.3 STi models. Also used on the limited production 22B. Similar to the VF22 but with a slightly smaller compressor side for better response while sacrificing some top end performance. Good compromise turbo that will work well in a variety of situations. Has considerably less turbo lag than the VF22 as this turbo will start to come on boost at 3000 rpm, and by 3200 rpm is capable of 20 psi @7000 rp
IHI-VF24 Turbocharger Assy.
Essentially identical to the VF29 and VF28. The VF24 was originally used on the STi Ver.4, the VF28 on the STi Ver.5 & 6 and the VF29 on the JDM WRX's of the same period. This turbo uses a P18 turbine housing and relatively small compressor for fast response and excellent low and mid-range performance. Ball bearing center section. Excellent bolt-on replacement for the standard WRX turbo on cars without any other major modifications.
