trevisbest

Hi.

I have a MY99 Uk turbo 2000 saloon, and before I get it ecutek`d i`d like to upgrade the turbo. I think i`ll probably go down the VF series route, as you can get decent second hand units for decent money.

I`m just wondering whats the difference between the turbo`s? vf22/vf22/vf28/vf35 etc?

Which one would be the best for me to get a nice safe 300bhp without any lag etc.

Thanks

Trev

Tidgy

vf34 is the best one of them for the classic turbo, but tends to be pretty expensive cos of how rare, vf35 will prob be your easiest and reasonably cheap find due to how common they are. will make about 330ish give or take, you'll need a fuel pump and remap to get the best and run safe.

trevisbest

so are the 20`s no good then? ive got an uprated fuel pump already fitted, it just needs the turbo then in for a remap.

Wouldnt 330bhp be too much for the gearbox to handle day-to-day?

Tidgy

depends on how its been treated, treated badly and it will break.

2.5STI

I would go for the VF43....

got one for sale pm me if your interested

dabow

iTrader: (19)

its not so much the bhp that brakes boxes, its the torque.
it depends what you are using the car for really, but 350ftlb is about it, unless using a 6 speed box. but kniow persons who use over on a 5 speed no issues

bigsinky

vf43 is over kill for 300 ponies IMHO. is it not aimed at the thick end of 400? (obviously with supporting modifications)

mr_D

iTrader: (12)

i have a vf48 for sale less than 3k on it and in great conditon.

2.5STI

vf43 a 400bhp turbo....? never heard of that power out of them.


it should be perfect for what he wants quick spoiling around the low 300's

vf48 would be overkill i recon.

bigsinky

vf 43 will do about 360-370 yes?

mr_D

iTrader: (12)

vf48 overkill. is that cos your selling yours?


i had vf48 and the vf43, vf35, vf28, vf23 on my sti v3, must say i prefered vf48 and vf43 to the earlier ones but i wouldnt say the vf48 was over kill. both turbos were about the same and depending on map will depend on the boosting as well. at least with the later models there is the option to go higher.

dabow

iTrader: (19)

to be honist, if you after around 300bhp, a hybrid td04 or td05 are good for 300bhp
can be got alot cheaper with not to much lag either.

the 05 can get 350 with the right suporting mods.
mine is kicking 341.4 with an 05 too

2.5STI

if the vf43 does as apprentley stated 360-370 bhp? what bar boost is this 2.0 ....lol

you can run the vf43 on a lower and more economical boost which would be better would it not.


depends what he wants from my experience the vf48 is more powerfull hence me saying its overkill.

if you only want 300 then i would just remap as is on your td04 then when you want more power (2 days later) go for something bigger.

up2u mate.

dynamix

iTrader: (3)

How much for the VF48 Mr D ? - pm me please

Jolly Green Monster

iTrader: (4)

vf34 is perfect, vf35 second choice

Simon

mr_D

iTrader: (12)

why did you post that twice?

Steve T

iTrader: (14)

I had a vf35 turbo on my last car,a MY00 Uk classic. They,re much cheaper than a vf 34 and have minimal lag.

trevisbest

v34 or v35 it is then I reckon.

Ill get looking.

Thanks for the offers on the 43 and 48, but I have a feeling they may be well out of my budget.

Tidgy

td is wrong fitment or has to be modified to fit, also pretty poor casting on them meaning very variable results. vf series give more reliable results.

if you were gonna go as far as a 43 or 48 then a sc36 is into that bracket and tbh for the requirments its way ott.

scooby2.5maz

iTrader: (16)

hi there, running a vf34 on my classic, ported header, ported uppipe, 440,s , fuel pressur reg , complete decat and 3 port !! this has got me to around 334 and as much torque !!! hope this helps

cheers maz

midnight

iTrader: (10)

If your on a budget as you say ,dont dismiss the vf23 or vf28,vf29 although they are 10+ years old,if you look around carefully there are still some half decent low mileage examples about,which with supporting mods can see you hit 310 - 330 bhp, and because most people opt for the vf35 ,23,'28's can be bought for decent money,just make sure you check it before you part with your cash.

Jolly Green Monster

iTrader: (4)

totally agree

T4YLOR 83

iTrader: (2)

Sorry to hijack but is there really much difference between the vf35 and vf34 I know 1 is rollerbearing but is there a major difference (say £200 worth as that's what seems to be the difference in price) as I don't understand if there is much then why would Subaru have taken a step back so to speak with there turbos ????

RobJenks

I also have a MY99 WRX . I have had a vf22 on the vehicle since 2002 and have been more than happy with its performance.

TonyBurns

iTrader: (3)

Its not really a step back, the 34 is just a touch larger but is a low friction roller bearing turbo, this was fitted to the 2001 RA and 2002 Spec C RA and S202 and gives a little bit more pickup (as every little bit helps in competitions ) and the VF35 is a sleeve bearing.
The difference could be 200rpm between the both, so is the 34 worth it over the 35? yes.

Tony

dabow

iTrader: (19)

addy's white harkeye has one standard, his is a 2.5 too.
subaru still use them as standard
there not weak casing + the guy said he wanted 300bhp
if wanted alot higher, then sugesting a bigger range would be better

dabow

iTrader: (19)

found this site, that lists the different ihi turbos, and what they can do

http://www.subaru4you.co.uk/turbos/turbos.shtml

dont really know if its true or not. but may help.
still say, if all he's after only 300bhp, the td04/lower ihi he should have
will be ok for what hes after, just needs a good map

WhiteWagonMan

iTrader: (34)

MAY HELP..........

IHI VF13
This is the standard equipment primary turbocharger used on the JDM Legacy MY93-95. No other information known at this time.

IHI VF14
This is the standard equipment secondary turbocharger used on the JDM Legacy MY93-95. No other information known at this time.

IHI VF18
This is the standard equipment primary turbocharger used on the JDM Legacy MY96. No other information known at this time.

IHI VF19
This is the standard equipment secondary turbocharger used on the JDM Legacy MY96. No other information known at this time.

IHI VF20
This is the standard equipment turbocharger used on the JDM Legacy MY97. No other information known at this time.

IHI VF22
(460cfm at 18.0psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V3 Subaru Impreza WRX . Of all the IHI models, the VF22 has the largest potential for peak horsepower, and is capable of supporting the highest boost levels. It is capable of running up to 25 psi. The VF22 is a roller bearing turbo that utilizes the P20 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF23
(388cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM MY95 Subaru Impreza WRX STi. The VF23 is a ball bearing turbocharger that utilizes the P20 exhaust housing like the VF22. This housing is mated with the smaller compressor housing of the VF24 for fast response and excellent low and mid-range performance. It does not have the same top end power of the VF22, but spools up significantly quicker.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF24
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V4 Subaru Impreza WRX STi. This turbo shares its compressor housing with the VF23, however, this housing is mated with a smaller (P1 exhaust side. The smaller characteristics of this turbo allow it to provide ample bottom end power and quick spool. This turbo is very popular for Imprezas with automatic transmissions and Group-N rally cars.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF25
This is the standard equipment primary turbocharger used on the JDM Legacy B4. Utilizes a thrust-bearing design and a P12 exhaust housing. No other information known at this time.

IHI VF26
(400cfm at 18psi)
This is the standard equipment primary turbocharger used on the JDM Legacy B4. Utilizes a divided thrust-bearing design and a B14 exhaust housing. No other information known at this time.

IHI VF27
(420 CFM at 18psi)
This is the standard equipment secondary turbocharger used on the JDM Legacy. Utilizes a ball-bearing design and a P18 exhaust housing. No other information known at this time.

IHI VF28
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V5 Subaru Impreza WRX STi.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF29
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger on the JDM V6 Subaru Impreza WRX STi. The VF29 is nearly identical to the VF24, with the same compressor and exhaust housings. However, the compressor wheel in the VF29 has been changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, and as such, this unit is typically chosen over the VF24. Has a different location for the pressure hose on the wastegate actuator.
Expect to achieve full boost with the proper mods and a quality tune between 2900-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF30
(460cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V7 Subaru Impreza WRX STi. 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.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF31
Utilizes a P11 exhaust housing. No other information known at this time.

IHI VF32
This is the standard equipment primary turbocharger used on the JDM Legacy. It utilizes a ball-bearing design. No other information known at this time.

IHI VF33
This is the standard equipment primary turbocharger used on the JDM Legacy. It utilizes a P11 exhaust housing and a divided thrust-bearing design. No other information known at this time.

IHI VF34
(460cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V7 Subaru Impreza WRX STi Spec-C. The VF34 is nearly identical to the VF30 but has improved spool up due to its roller bearing design. It also utilizes a P18 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF35
(425cfm, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX. The VF35 is similar to the VF34. It utilizes 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 slightly quicker than the VF34 at the cost of less top-end performance.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF36
(430 cfm, 250-325whp, Modification Required)
This is the standard equipment turbocharger used on the JDM V8-V9 Subaru Impreza WRX STI Spec-C Type RA. The VF36 is a twin-scroll turbocharger that utilizes a ball bearing design, a P25 exhaust housing, and Titanium (possibly TiAl?) compressor wheel for improved spool. It is essentially a fast spooling VF34.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF37
(430 cfm, 250-325whp, Modification Required)
This is the standard equipment turbocharger used on the JDM V8-V9 Subaru Impreza WRX STI. The VF37 is a twin-scroll turbocharger that utilizes a thrust bearing design and a P25 exhaust housing. It is essentially a fast spooling VF30.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.

IHI VF38
The VF38 is a twin-scroll that utilizes a Titanium turbine and shaft. This turbocharger yields tremendous spool-up but offers less top-end than the VF36/VF37. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at 2400RPM.

IHI VF39
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the USDM Subaru Impreza WRX STI. 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 proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles that utilize this turbo aftermarket. Though they are prone to cracking (wastegate hole), VF39’s can be had for very cheap if bought used. Not because they're an inferior turbo, but the exhaust housing can be near the wastegate hole.

IHI VF40
This is the standard equipment turbocharger used on the USDM Subaru Legacy GT. It can be found on all the current model years from 2005-2007.

IHI VF41
This is the standard equipment turbocharger used on the JDM Subaru Forester STI. It utilizes a P18 exhaust housing.

IHI VF42
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX STi S203 and S204. The VF42 features a twin-scroll design with a slightly larger compressor than the VF36/VF37 turbos and different turbine design (more blades). The VF42 is a roller-bearing turbo and is similar in size to the VF22 turbo, but the twin-scroll exhaust housing yields faster spool-up and a superior top-end.

IHI VF43
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the MY07 USDM Subaru Impreza WRX STI. It can be found on both base STI's and STI Limited's. The VF43 utilizes 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.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles that utilize this turbo aftermarket.

Jolly Green Monster

iTrader: (4)

Power figs are wrong but otherwise v useful.
Assume they are flywheel horse power rather than wheel as stated and you wont be disappointed

scooby350bhp

ive got a vf28 on my 1997 uk with supporting mods, awesome bit of kit, hit full boost by 3000 rpm