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STI Type RA V4 Turbo Upgrade Advice

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Old 12 September 2004, 08:59 PM
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mikey f
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Default STI Type RA V4 Turbo Upgrade Advice

Hi All
Whilst out today, the VF24 Turbo on My V4 RA gave up the gost. The Bearing has gone and it makes a hell of a racket.
I Stripped it down and can confirm its dead.

Now, as to what do do next there are three optios as I see it:
1) replace as standard
2) replace with later version JDM turbo
3) go specialist/after market route including injectors and fule pump and remap.

The car has a new steel engine with 3.5 inch Decat and Power FC so am looking for option 3 but what do people think? What options are there if i'm chasing 350-400 HP?

Any advice would be useful on specs and suppliers.
Also if anybody can explain the IHI turbo range so if i end up with option 2, what i should look for.

Last edited by mikey f; 12 September 2004 at 09:25 PM. Reason: Cos RA has VF24 not VF34
Old 12 September 2004, 09:02 PM
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StickyMicky
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i didnt relise the sti4 ra came with a vf34
Old 12 September 2004, 09:04 PM
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TopBanana
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The VF34 *is* a later version JDM turbo!

A VF35 + injectors + pump + uprated intercooler would get you 350bhp. Depends how much you want to spend.
Old 12 September 2004, 09:22 PM
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TopBanana
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Probably a typo - I think they came with a vf24.
Old 13 September 2004, 01:59 PM
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mikey f
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Now got a VF35 on order, along with a uprated fuel pump and regulator.
Any suggestions on possible power increase after remap?

Mike
Old 13 September 2004, 03:18 PM
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TopBanana
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350hp tops, but the intercooler will probably hold it back
Old 13 September 2004, 03:21 PM
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mikey f
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Got a V5 intercooler fitted. that should assist yes?
Old 13 September 2004, 03:25 PM
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Should be very nice to drive. Who's mapping it?
Old 13 September 2004, 03:30 PM
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mikey f
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Andy F Hopefully
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