MDS4Y555

Technical Specification:
• High horsepower & torque with low lag
• Housing cast & machined in the UK
• First class foundry as used by OE manufacturers
• Housing cast using IHI OE spec material
• Castings made from CNC patterns for precision
• Turbine Housing CNC machined
• Fits OE up & down pipe in standard position
• Cast relieved porting on turbine inlet aperture
• Two volute sizes available (E1 and T1)
• Three GT30 turbine trim sizes
• ‘Ported Shroud’ option available
• Ceramic coated turbine housing as standard
• Different pressure wastegate actuators available
• Horsepower range from 380 BHP to 480 BHP
• Reliable under the most demanding conditions
• Now available for ‘fly-by-wire’ throttle versions
• New housing under development for twin scroll

As a replacement for the TD04, the TD05, the VF34 and the VF35 and IHI single scroll turbo in the right engine with the right set up (ceramic coated twisted up and down pipes, FMIC, parallel fuel rails, profiled cams, this turbo has reached the dizzying heights of 618BHP "This is an excellent turbo for people looking for quick spool and power/torque fron 380bhp up to 500bhp" (and beyond in the right setup).

Download data sheet

Available in the following sizes:
-400 BHP, 58mm Inlet*
-420 BHP, 58mm Inlet*
-450 BHP, 58mm Inlet*
-475 BHP, 76mm Inlet*
-500 BHP, 76mm Inlet*

Prices From £1375 plus VAT

Options
Restricted Oil Feed Fitting + £9.75 +VAT
(required if over 30psi (2.2bar) oil pressure)
Billett Wheel option + £100 plus VAT
Ported Shroud Inlet + £175 plus VAT
76mm Inlet Upgrade on 400-450 version £0**
Fitting kit extra (approx £150)

Fitting service and complete package prices

*BHP figures are guidelines only
**Requires 76mm inlet pipe

A a replacement for theTD04 turbo the VF34 more than does the job. The VF34 is a roller bearing turbo which is supposed to allow quicker spool and better response with boost starting at around 2900-3000 rpm and with uprated injectors, fuel pump and mapping will max out at around 360bhp.
£870

The VF35 is the standard turbocharger used on the JDM Subaru Impreza WRX. The VF35 is similar to the VF34. using the same compressor housing and compressor inducer size. The differences are in the divided thrust-bearing design and the P15 exhaust housing. This allows the VF35 to spool slightly earlier than the VF34 at around 2800-2900 at the cost of less top-end performance.  Expect to achieve full boost (with the proper mods and mapping) between 2900-3300rpms and will probably max out at around 325bhp.
£1100

The twinscroll GT4088 turbo for the big boys! It is huge! You will probably need everything upgraded to use one of these!! Should be capable, in the right set up, of pushing towards 750BHP
£POA