Newage wrx intercooler
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13 May 2009, 10:07 PM
#11
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Chris has very kindly made me a blanking plate
The question is if i run the car without a dump valve will i cause damage to the turbo?
The turbo is a vf22 running 1.3 bar of boost.
The question is if i run the car without a dump valve will i cause damage to the turbo?
The turbo is a vf22 running 1.3 bar of boost.
Last edited by mp24; 13 May 2009 at 10:09 PM. Reason: Added a bit more
13 May 2009, 10:26 PM
#15
The Dump Valve allows excess air to be released. Without it the excess pressure will go to the turbo.
You could end up with turbo bits in the engine...................eek!
Last edited by The Trooper 1815; 13 May 2009 at 10:28 PM.
14 May 2009, 10:18 AM
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vf22's r know for being very fragile so I wouldn't run it with out a dump valve if I was u, they don't like running at high boost either think 1.3 bar is about the recommend max.
14 May 2009, 03:44 PM
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I just found this
IHI VF22
(490cfm at 18.0psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V3 Subaru Impreza WRX and optional on the JDM Subaru Impreza WRX STi 22b. 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 VF22
(490cfm at 18.0psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V3 Subaru Impreza WRX and optional on the JDM Subaru Impreza WRX STi 22b. 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.
14 May 2009, 07:23 PM
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25PSI 
thats over 1.7bar, Andy F only reccomends up to 1.4 for any of the VF series turbos and the VF3* turbos are known to be a lot stronger than the VF2* turbos
Think it is the blades that r particulary weak on the VF22's, i've got one on the Type R it is mapped to 1.3bar and i wouldn't even consider running it at any more than that.
thats over 1.7bar, Andy F only reccomends up to 1.4 for any of the VF series turbos and the VF3* turbos are known to be a lot stronger than the VF2* turbosThink it is the blades that r particulary weak on the VF22's, i've got one on the Type R it is mapped to 1.3bar and i wouldn't even consider running it at any more than that.
14 May 2009, 11:34 PM
#21
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Prodrive quote the maximum boost pressure for the VF22 as 1.3 bar as anything in excess of 1.3 bar falls outside its efficency range so the turbo will run hotter without flowing any extra air. Turbine blade failures and bearing damage due to over heating are known to happen running greater boost levels.
As Dean has already mentioned the early IHI VF turbos are weaker so it's advised not to blank the dump valve off. Subaru's have run without dump valves on the later IHI VF30 range, TD04 and various TD05's including the hybrid 18g and 20g without any problems and reported agains in throttle recovery.
So replace your turbo and chatter away.
As Dean has already mentioned the early IHI VF turbos are weaker so it's advised not to blank the dump valve off. Subaru's have run without dump valves on the later IHI VF30 range, TD04 and various TD05's including the hybrid 18g and 20g without any problems and reported agains in throttle recovery.
So replace your turbo and chatter away.
Last edited by bluerigster; 14 May 2009 at 11:55 PM.
15 May 2009, 09:32 AM
#22
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this has probably been asked and i apologise for my ignorance. but whats the standard psi/bar a standard v3 sti should boost at?
just curious as i seem to sometimes hit around 1.5 on my defi gauges
however i know sometimes gauges can be out but doubt it will be that much out on the defi set up
just curious as i seem to sometimes hit around 1.5 on my defi gauges
however i know sometimes gauges can be out but doubt it will be that much out on the defi set up
18 May 2009, 08:52 PM
#23
Mark,
I have now managed to get a hose which I think will fit. It's been a nightmare getting the right shape so I gave up. Tried Pirtek, Samco (don't sell to the public ) for off cuts of the right size but failed. Everyone wants to sell the reinforced flexihose in 1 metre lengths.
So, after a bit of head scratching and delving I found this.
GATES VULCOFLEX - 225MM X 28MM VULCOFLEX - GVF-225-28
It's due tomorrow and hopefully the IC, clean sprayed and stickered up will be ready by Wednesday for a trial run.
I have now managed to get a hose which I think will fit. It's been a nightmare getting the right shape so I gave up. Tried Pirtek, Samco (don't sell to the public ) for off cuts of the right size but failed. Everyone wants to sell the reinforced flexihose in 1 metre lengths.
So, after a bit of head scratching and delving I found this.
GATES VULCOFLEX - 225MM X 28MM VULCOFLEX - GVF-225-28
It's due tomorrow and hopefully the IC, clean sprayed and stickered up will be ready by Wednesday for a trial run.
18 May 2009, 09:06 PM
#24
this has probably been asked and i apologise for my ignorance. but whats the standard psi/bar a standard v3 sti should boost at?
just curious as i seem to sometimes hit around 1.5 on my defi gauges
however i know sometimes gauges can be out but doubt it will be that much out on the defi set up
just curious as i seem to sometimes hit around 1.5 on my defi gauges
however i know sometimes gauges can be out but doubt it will be that much out on the defi set up
18 May 2009, 11:57 PM
#27
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Mark,
I have now managed to get a hose which I think will fit. It's been a nightmare getting the right shape so I gave up. Tried Pirtek, Samco (don't sell to the public ) for off cuts of the right size but failed. Everyone wants to sell the reinforced flexihose in 1 metre lengths.
So, after a bit of head scratching and delving I found this.
GATES VULCOFLEX - 225MM X 28MM VULCOFLEX - GVF-225-28
It's due tomorrow and hopefully the IC, clean sprayed and stickered up will be ready by Wednesday for a trial run.
I have now managed to get a hose which I think will fit. It's been a nightmare getting the right shape so I gave up. Tried Pirtek, Samco (don't sell to the public ) for off cuts of the right size but failed. Everyone wants to sell the reinforced flexihose in 1 metre lengths.
So, after a bit of head scratching and delving I found this.
GATES VULCOFLEX - 225MM X 28MM VULCOFLEX - GVF-225-28
It's due tomorrow and hopefully the IC, clean sprayed and stickered up will be ready by Wednesday for a trial run.