Is this a good buy?
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Author:  SuzukiMan365 [ Fri Dec 04, 2015 5:15 pm ]
Post subject:  Is this a good buy?

Hi all. A friend of mine is selling a turbo off his wrx. Its an IHI VF30 turbo. The seals are worn and he wants US$170 for it. All comments are welcome. Thinking of a low boost setup for my gti.

Author:  Solerpower [ Sun Dec 06, 2015 7:14 am ]
Post subject:  Re: Is this a good buy?

There are no compressor maps for the IHI VF30. I did find 47.9 mm has the compressor inlet diameter, and a AR .63. Floating bearing. If it is a float bearing I'm guessing that the turbine itself will have to be replaced (up to $200 for just that part). Looking at the specs below just going by the size of the turbine it is not going to have the best fit for a 1.3 liter engine. It isn't ridiculously large either though.

STi ver 7Oct 2000
• Compressor Seal Material, Synthetic Mica + Teflon
• Waste gate open pressure 78 Kpa
• Max turbine Speed 165000 Rpm
• Compressor Rotor sizes 60 / 46.5 mm
• Turbine Rotor size 53 / 48 mm
• Max target boost 113Kpa 16.4 psi (see notes below) (applies to Subaru engine)
A totally new design and shape “VF” series turbo
Common on Group A rally cars where more capacity is required than is possible with the VF24.
Good turbo as compromise between the VF23 and VF22, as it has the same size turbine housing as
a VF24 and a compressor housing similar to a VF 22
A relatively new turbo to the market and still being “tried and tested” early indications are it will
replace the VF 23, with slightly more capacity.
Current tests show this turbo will pump up to 25 PSI, but its designed to do so at low rpm, rally car
use with restrictors and such limit this and with a 34 mm restrictor max boost is 22psi

Author:  SuzukiMan365 [ Tue Dec 08, 2015 5:00 pm ]
Post subject:  Re: Is this a good buy?

Thanks for the reply. Maybe I'd be better off getting the much recommended gt25 turbo. Anyone know how to keep the stock gearbox from dieing on a low boost engine please share!

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