Author Topic: VF Turbo Info  (Read 9594 times)

March 07, 2012, 10:19:19 AM
Reply #15

Stev0

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Hey Deon,

The TDO5H16G, comes off a Mitsu lancer EVo 8. Thats a good turbo to start playing with. Although its not a direct bolt on like the VF35 would be.

Personally, I would just slap a VF on it and have it tuned. 220kw is easily possible.
Jeep Commander CRD - GDE Hot Tune
ex Prodrive Xt, X, XT, WRX STI, Outback 3.0R

October 27, 2012, 09:44:20 AM
Reply #16

westcoaster

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Steve, any chance you could extend your original post up to the VF52 range, for interest's sake?  I've read the the VF52 is used in the SH XT, s-edition AND '08+ WRX AND STI.  Is this correct?
Following the numbering system, it looks like the VF52 is at the smaller end?
I've also read they all use the same Downpipe. Correct?
If so, then the s-ed/STI are just re-tuned XT/WRX'es, which means an s-ed could easily be turned into an SUV-ed STI (ie re-map only)?
« Last Edit: October 27, 2012, 10:29:24 AM by westcoaster »
Current: S-edition 2011 Steel Silver (S-exy young thing) - Forged, Chett tjooned, 76mm s/s wrapped DP, King Springs, 225/60/17 G012s, Sump & AT guards, cheap mud flaps, HID fogs, LED parks.
Ex:        2.5X man 2010 Pearl White (Dirty Girl) - LSS lift, 235/60/16 G012s, Sump guard, HIDs and more..

November 12, 2012, 02:35:07 PM
Reply #17

Cruiser

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Hi Westcoaster. What I have read confirms what you say, the S has the vf52 as does the 08+ WRX. I am currently looking for a vf52 to fit on my SH as its a bolt on option. However this is proving a little more challenging than I had hoped.
2011 S-edition
2008 XT Manual

November 16, 2012, 08:14:23 AM
Reply #18

westcoaster

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...but then I read on one of the other forums that the STI (Impreza) has the vf48, not the vf52... so I'm still not sure what's what. Not that I'm going to fiddle with the turbo on my car anyway...
Current: S-edition 2011 Steel Silver (S-exy young thing) - Forged, Chett tjooned, 76mm s/s wrapped DP, King Springs, 225/60/17 G012s, Sump & AT guards, cheap mud flaps, HID fogs, LED parks.
Ex:        2.5X man 2010 Pearl White (Dirty Girl) - LSS lift, 235/60/16 G012s, Sump guard, HIDs and more..

November 16, 2012, 09:20:59 AM
Reply #19

Cruiser

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Well if I had a S Edition, which I believe has the vf52, I wouldnt fiddle either. But as I dont, fitting the 52 will get me there. :-)
2011 S-edition
2008 XT Manual

August 04, 2014, 11:36:16 AM
Reply #20

sav

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How does the VF43 fit into all of this?

Had a look at 2 2nd hand VF35 turbos on Friday - one had shaft play on the exhaust side and the other on the intake side. No go...
2007 XT Premium Sportshift (Decat, VF48 @ 1.2 bar, STi TMIC, Chett tjooned, BBK, coilovers, etc etc eish!)

May the Forester be with you...

August 04, 2014, 01:03:47 PM
Reply #21

Jacques

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How does the VF43 fit into all of this?

Had a look at 2 2nd hand VF35 turbos on Friday - one had shaft play on the exhaust side and the other on the intake side. No go...

From what I can remember when doing some research was that if you want to go IHI Sti turbo, look at the VF39, VF43 and VF48 turbos for the 2.5L engine.  VF34 and VF35 are better suited to the 2 L engines.  VF52 is for the newer Foresters (SH) and won't be a direct fit on the SG. 
2006 Forester XT MT - 20G'd

August 04, 2014, 01:05:41 PM
Reply #22

sav

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How does the VF43 fit into all of this?

Had a look at 2 2nd hand VF35 turbos on Friday - one had shaft play on the exhaust side and the other on the intake side. No go...

From what I can remember when doing some research was that if you want to go IHI Sti turbo, look at the VF39, VF43 and VF48 turbos for the 2.5L engine.  VF34 and VF35 are better suited to the 2 L engines.  VF52 is for the newer Foresters (SH) and won't be a direct fit on the SG.
Great, thanks. That means I have to do my homework on  VF39, VF43 and VF48 then.
2007 XT Premium Sportshift (Decat, VF48 @ 1.2 bar, STi TMIC, Chett tjooned, BBK, coilovers, etc etc eish!)

May the Forester be with you...

August 04, 2014, 01:36:50 PM
Reply #23

Stev0

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The VF35 and 43 is near identical I believe.

I love the OEM 43 on the STI.

For a daily drive Forester, Id fit a 35/43, down pipe and exhaust, aqua mist and a dual tune 1 bar everyday and 1.3 High boost (NF Ultra). It will fly!
Jeep Commander CRD - GDE Hot Tune
ex Prodrive Xt, X, XT, WRX STI, Outback 3.0R

August 04, 2014, 02:01:21 PM
Reply #24

sav

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The VF35 and 43 is near identical I believe.

I love the OEM 43 on the STI.

For a daily drive Forester, Id fit a 35/43, down pipe and exhaust, aqua mist and a dual tune 1 bar everyday and 1.3 High boost (NF Ultra). It will fly!

Cool, sounds like it would be easiest to find a good 43. Not sure if Chett can do dual maps on the SG yet though but 1 bar should be more than enough. For now. :D
2007 XT Premium Sportshift (Decat, VF48 @ 1.2 bar, STi TMIC, Chett tjooned, BBK, coilovers, etc etc eish!)

May the Forester be with you...

August 04, 2014, 02:06:57 PM
Reply #25

Stev0

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1 bar is good, but try and run octane booster anyhow. NF street or sport would do.  There is a huge difference between 1 bar on pump and 1 bar with octane booster.  We even did a test on a friends 850 Volvo and without octane it made 202kw. With Nf sport it made 211kw and an extra 30nm. (same map, same boost, same dyno)
Jeep Commander CRD - GDE Hot Tune
ex Prodrive Xt, X, XT, WRX STI, Outback 3.0R

August 04, 2014, 02:08:46 PM
Reply #26

sav

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1 bar is good, but try and run octane booster anyhow. NF street or sport would do.  There is a huge difference between 1 bar on pump and 1 bar with octane booster.  We even did a test on a friends 850 Volvo and without octane it made 202kw. With Nf sport it made 211kw and an extra 30nm. (same map, same boost, same dyno)
Cool, the little TD04 is running 1 bar at the moment and I've got some NF street at home - will give it a try.
2007 XT Premium Sportshift (Decat, VF48 @ 1.2 bar, STi TMIC, Chett tjooned, BBK, coilovers, etc etc eish!)

May the Forester be with you...

August 04, 2014, 02:37:05 PM
Reply #27

TheRookie

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Chett can do multiple boost settings provided ur aftermaket boost controller accomodates it.

Go Fast Bits Boost controller has 6 boost settings
2012 Kia Cerato (His)
2006 Fozz XT Tuned and vf35'd(Hers)

August 04, 2014, 02:38:57 PM
Reply #28

Jacques

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1 bar is good, but try and run octane booster anyhow. NF street or sport would do.  There is a huge difference between 1 bar on pump and 1 bar with octane booster.  We even did a test on a friends 850 Volvo and without octane it made 202kw. With Nf sport it made 211kw and an extra 30nm. (same map, same boost, same dyno)

No matter how hard I try, I still don't understand how this is possible?  ???

For example, if your car is mapped for 95 octane and you use 95 octane petrol, adding octane booster will do absolutely nothing.  Octane booster don't give you any more performance, it just increases the knock index.  It allows you to run more timing (and/or leaner AFRs) and hence more power, but in this case, since you're mapped for 95, you're already at full timing so no more timing will be added by the ECU (and therefor no more power).

If the ECU pulled timing due to knock, adding octane booster will help to restore the timing and it will increase the power.  But then in this case the car wasn't properly mapped for 95 to start off with. 

This is my view.  Please correct me if I missed something. 
2006 Forester XT MT - 20G'd

August 04, 2014, 02:39:36 PM
Reply #29

sav

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Chett can do multiple boost settings provided ur aftermaket boost controller accomodates it.

Go Fast Bits Boost controller has 6 boost settings
Sounds like I'm going to need one of those then. :D
2007 XT Premium Sportshift (Decat, VF48 @ 1.2 bar, STi TMIC, Chett tjooned, BBK, coilovers, etc etc eish!)

May the Forester be with you...