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Moin Leute,

die Infos habe ich im Netz gefunden und dachte mir, hier sind die auch gut aufgehoben.



VF22
This Turbo used on the V3 Subaru Impreza WRX and has the highest potential output of all of the IHI VF turbos thus making it a good choice for the tuner who is looking for lots of top end power.
You can with a good mapper/tuner and with the correct supporting modifications achieve 17psi by 3000rpm and is well capable up to +400hp.

As with all turbos the more top end power gained results in a slower spool up (more lag).This is because the VF22 uses the larger P20 exhaust housing, This the main factor in this spool issue and is not so much suited to daily driving than some of the other options available.
Although the VF22 is the largest VF series turbo, and can take highest boost levels of all the VF range it is not quite suited for stroked blocks running high boost of more than 20psi+
The VF22 is a ball bearing turbo using 485 comp wheel and as already mentioned the P20 Turbine Housing.
460cfm at 18.0psi


VF23
This Turbo Used on the JDM V3 Subaru Impreza WRX and was standard fitment choice on most 22B Subaru models.The vf23 is considered to be a great all-around turbo optimal for most applications from mild to slightly wild. You can with a good mapper/tuner Expect to achieve full boost anywhere between 2800-3300rpms and with the proper supporting mods is capable of power upto 350hp.

Like the VF22 above it uses the larger P20/18 exhaust housing. This housing is used with a smaller compressor housing of the of the VF24 for fast response (less lag) This is why it will not acheive the same top end power of the VF22, but spools up significantly quicker With great mid range power. The VF23 is a ball bearing turbo using 467 comp wheel and P18/20 Turbine Housing. 460cfm at 18.0psi


VF24
This turbo was used on the V4 Subaru impreza wrx sti, It uses the same compressor housing as the VF23 however, this housing is mated with a smaller (P1 exhaust side. The smaller characteristics of this turbo allow it to provide loads of bottom end power with very quick spool. This is why this turbo is very popular for Imprezas with automatic transmissions and Group N rally cars. Expect to achieve full boost with the correct supporting mods and a good map between 2800-3300rpms. The VF24 is not recommended for high performance engines, or if big boost is needed. Which makes VF24 better suited to mildly modified engines.The VF24 is a non-ball bearing turbo with a 467 comp wheel and P18 Turbine Housing.


VF25
This was the Primary turbocharger used on the JDM Legacy B4. Utilizes a thrust-bearing design and a P12 exhaust housing.


VF26
This was another turbo charger used on the JDM Legacy B4. Utilizes a divided thrust-bearing design and a P14 exhaust housing.


VF27
This is the standard equipment secondary turbocharger used on the JDM Legacy. Uses a ball-bearing design and a P18 exhaust housing.
420cfm at 18psi


VF28
This turbo came on the Subaru Impreza STi Version 5. In terms of its size, it is smaller than the VF22, VF30 and VF34, and about same size as the VF23. you would Expect to hit full boost with the correct supporting mods and a good map any where between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and using correct ecu management is recommended for all vehicles.
425cfm at 18psi anything around 320bhp is achievable


VF29
This Turbo is basically identical to the VF24, having both the same compressor and exhaust housings. The only difference being the compressor wheel in the VF29 was changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, Which makes this unit and as such this unit a better choice over the VF24. The VF29 also has a different location for the pressure hose on the wastegate actuator.As above it can reach power of around the 320bhp mark.425cfm at 18 psi


VF30
This is the standard choice of turbocharger used on the JDM V7 Subaru Impreza WRX STi.
The VF30 is commonly veiwed as the best pound for pound turbo in the IHI VF line.The VF30 features the same exhaust housing as the VF24 but a larger compressor side similar to the VF22. The combination of these two parts resulted in increased output potential without the lag often associated with the VF22. Although it doesn't offer the great top end power of the VF22, the VF30 is a great compromise between these units and the quicker spooling models. The VF30 is a thrust-bearing turbo that utilizes the P18 exhaust housing of a VF24 and the compressor housing sized between a VF23 and a VF22. 460cfm at 18psi and anything around the 325bhp mark is achievable.


VF31
Utilizes a P11 exhaust housing.

VF32
This is secondary turbocharger used in the B4 IHI VF32. On the exhaust side it uses a 46.5/35.4mm 9-blade turbine wheel, teamed up with a 52.5/36.6mm 10-blade compressor wheel. It's rated at 180,000 rpm. Both the primary and secondary turbochargers use a floating metal centre bearing - not ball bearings.Some time the secondary turbocharger is changed on twin turbo ej engine models to gain more power


VF33
This is the primary turbocharger used in the B4 is an IHI VF33 unit, which uses a 46.5/35.4mm 9-blade turbine wheel and a 47.0mm/35.4mm 6 + 6 blade compressor. At idle, the turbo spins at around 20,000 rpm and it can go on to a maximum speed of 190,000 rpm.Which is 100,000 more than the VF23. It has a 17mm diameter wastegate opening to bypass excess exhaust gas. It utilizes a P11 exhaust housing and a divided thrust-bearing design.


VF34
This turbo is used on the JDM Subaru Impreza WRX STi Spec-C.
The VF34 is mostly identical to the VF30, with the same exhaust housing and compressor wheel. However the VF34 goes back to the ball bearing design, and in doing so creates full boost roughly 250rpm-500RPM sooner than the VF30. The VF34 is the most recent in IHI design and as such costs slightly more than its counterpart and was originally introduced on the Limited Edition STi Type RA Spec C from the of november 2001.Power wise Top end performance and maximum output are identical to the VF30. The Vf34 is a ball bearing turbo with a 479 comp wheel and a P18 Turbine Housing. 460 cfm at 18 psi maxium output 325bhp approx


VF35
This is the turbo of choice on the newer wrx type ra limted. The VF35 has the same internals as the VF30 and it uses divided thrust bearings. However, the exhaust housing is a P15 which means this turbo will have a very very fast spool.Which also means it would be very suited to automatic transmission also. The VF35 is similar to the VF34 in the way it uses the same compressor housing and the same compressor inducer size. The differences are in the divided thrust-bearing design and the P15 exhaust housing. This allows the VF35 to spool a little quicker than the VF34 at the cost of a little less top-end performance of course.425cfm at 18psi maxium output 325bhp approx.


VF36
This Turbo is the standard choice on the JDM V8-V9 Subaru Impreza WRX STI Spec-C Type RA.
The VF 36 is a Roller bearing version of the twin scroll VF37, also has a titanium turbine and shaft for an even quicker spool and uses the compressor housing as VF30 and the VF34, however the VF36 uses the twin scroll P25 exhaust housing to provide a slightly better top end output due to reduced exhaust pulse interference. It is a great fast spooling turbo.Capable of great power outputs of 350bhp+


VF37
This turbo is the standard choice used on the JDM V8-V9 Subaru Impreza WRX STI. this turbo is seen by some as a fast spooling VF30,IHI Entered the age of twin scroll.The VF37 uses the same compressor housing as VF30/34, however it has a new twin scroll P25 exhaust housing that provides slightly better top end output due to reduced exhaust pulse interference. Using the Twin scroll also provides better spool up for improved low down response over the VF30/34. This turbo is good for upto 400bhp and used on all jdm STI's from 2003 onwards.430cfm at 18psi


VF38
The VF 38 is a Twin scroll turbo with titanium turbine and shaft.Which uses a smaller compressor housing than VF36/VF37 using said housing provides massive quick spool up capabilities but less top end than VF36/37. The spool capabilities of this turbo are quite demonstrated on the JDM Legacy GT, which reaches maxium torque at crazy 2400RPM.


VF39
This turbo is the standard choice used on the USDM (USA Market) Subaru Impreza WRX STI and the 2.5l internationally released STI's . The VF39 is a single scroll turbo, smaller than VF30/VF34. It can be found on all model years from 2004-2006. The VF39 utilizes a thrust bearing design and the P15 exhaust housing.
Expect to achieve full boost with the correct supporting mods and a good map between 3000-3500 rpms.For all the 2002-2005 WRX owners you would need fuel upgrades for this turbo and correct engine management is highly recommended for all persons wanting to use this turbo as an aftermarket. Though they can be known to crack (wastegate hole),A VF39 can be picked up quite cheaply if bought used.power of around 325bhp+ can easy be had from this unit.


VF40
Used on the USDM Subaru Legacy GT. It can be found on all the current model years from 2005-2007.


VF41
Used on the JDM Subaru Forester STI. It uses the P18 exhaust housing.


VF42
This model turbo is Exclusive to the highly sortafter S203/S204 models, The VF42 features a twin scroll design with a slightly larger compressor than the VF36/37 and a different turbine design using more blades. The VF42 is a roller-bearing turbo and is of similar size to the VF22, but with twin scroll exhaust housing for faster spool and super top end performance,This due to reduced exhaust pulse interference.


VF43
The VF43 was used on the MY07 USDM Subaru impreza WRX STI. It can be found on both base model STI's and STI Limited's. The VF43 uses a thrust bearing design and the P15 exhaust housing. The difference between the VF43 and the VF39 used previously on STI's is the size of the wastegate. The VF43 has a larger wastegate designed to reduce boost creep issues.This unit can give anything up to 325bhp+ approx


TD05-16g
The td 05 is based on the 90 degree inlet TD05 16G from the 93-96 cars and can also be converted to front entry to suit 97 onward cars. This turbo is very popular on installations aiming for power upto 330bhp. This turbo will typically quick spool up to 1 bar boost by 3000rpm and full boost by 3300rpm.The TD05 was used also on eariler versions of the WRX type RA


TD05-20g
This a TD05 fitted with a much larger, high efficiency 20G compressor wheel and compressor housing. The high efficiency compressor allows the turbo to run at a lower rpm whilst still producing large amounts of boost. This results in up to 50bhp increase in airflow capability over a TD05 16g unit.


TD06-49
The compressor wheel used on the TD06-49 is a high efficiency Garrett with 49lb flow rate. This equates to approx 40bhp more airflow than the 20G compressor. This turbo will produce 400BHP+.


SP40
This is a 400bhp plus turbo with a 3” inlet.


SP45
This is a 450bhp Turbo with a 3” Inlet.


MD321H
This turbo is ideally suited to 2.0/2.1 ltr engines aiming for 400 bhp on pump fuel. Boost threshold is similar to a 20G.


MD321T
This turbo is aimed at the 2.3 and 2.5 conversions, full boost is available before 3000 rpm and the potential for 480bhp and over 500lbft of torque exists.


Garrett GT30R
500 - 540bhp Turbo


Garrett GT35R
550 – 600bhp Turbo

Ohje, sowas soll natürlich nicht sein.
Anstatt nützliche Infos habe ich hier wohl halbgares Wissen gepostet, sorry.