tsl202

Hi,

I'd like to know if is it possible to fit without any probs a IHI VF23 turbo on a MY2002 wrx.
Max power and boost allowed by the VF23?
Do I've to do a remap?
Price for the VF23 and fitting (if possible)

Thanks

Daniel

dr_jones

iTrader: (1)

Don't know - Sorry.
Max boost around 1.3 bar.
Remap - pretty much for certain.
Don't know - Sorry.

scooby-si

max bhp on my 2.2ltr was 335bhp peaking at 26/27psi and holding about 20psi

BVM

Subaru has used both Mitsubishi and IHI turbochargers on the Subaru WRX's over the years. Early STi and JDM WRX models (Ver.1&2) used Mitsubishi TD05 turbos with a 90 degree inlet elbow. These TD05's are equivalent to the "small" 16G used on some Mitsubishi EVO's. Later STi and JDM WRX models have used IHI VF series turbos with a straight inlet fed from underneath the intake manifold. Non-STi models have pretty much exclusively used the Mistubishi TD04. All these turbos are essentially interchangeable between each other although the turbos with the 90 degree inlets are not easily interchanged with the straight inlet types.

IHI-VF22 Turbocharger Assy.
Originally used on Ver.3 JDM WRX & WRX RA models. This is the largest of the VF series turbos and is recommended for use on cars with significant modifications and where flow capacity is more important then response time. Ball bearing center section with large P20 turbine housing. Turbo will start to come on boost at 3300 rpm, however is capable of running up to 25 psi @7000 rpm

IHI-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.

IHI-VF30 Turbocharger Assy.
Standard turbo used on the STi Ver.7 models. This turbo combines the smaller P18 turbine housing with a compressor section of only slightly smaller size than the VF22. This is the ideal turbo for the average person looking for fast spool up with good capacity. Excellent mid-range performance and response. This turbo is not a ball bearing design. 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 rpm.

IHI-VF34 Turbocharger Assy.
Identical to the VF30 but with a ball bearing center section. Used on the STi RA Spec. C model. Provides slightly improved response over the VF30 and better reliability with anti-lag systems. This turbo will start to come on boost at 2700, and by 3000 rpm is capable of 18.5 psi @7000

IHI-VF35 Turbocharger Assy.
Basically an ultra fast response version of the VF30. Identical compressor section to the VF30 but with the smallest A/R turbine housing yet used on the WRX (P15). Limited top end. Not a ball bearing design. Good for restrictor rally cars and modified WRX automatics.

tweenierob

Jesus Si you were brave!!!!!!

nearly 2 bar on a 23!!!

Yes it will fit
IMO 320hp
Yes remap, higher airflow etc etc
Approx £150 for a 23 and fitting costs would be around £100 at a garage over here... not sure over where you are

Rob

scooby-si

and it lasted 20months and its still ok, only taken it off to put a td05/6 20g on