VF39 swap instructions w/pics - Page 3

06rexwagon · 03-02-2007, 01:16 PM

Quote:

Originally Posted by t3ch9

i drive a 02 wrx. Do I have to purchase pink injectors or is there a cheaper alternative. So the stock fuel pump will work with this turbo? Will the cobb 2 reflashed ECU work with the new turbo or should i purchase an access port?

Your stock injectors won't work. I'm not sure which one's you should get, but the pinks or the new '06 injectors flow enough, just not sure if they'll fit.

Fuel pump, I think you'll need a walbro

Your stage 2 reflashed ecu will definitely not work with this turbo.

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sluflyer06 · 03-02-2007, 04:48 PM

Quote:

Originally Posted by t3ch9

i drive a 02 wrx. Do I have to purchase pink injectors or is there a cheaper alternative. So the stock fuel pump will work with this turbo? Will the cobb 2 reflashed ECU work with the new turbo or should i purchase an access port?

both the pinks and the 06' oem injectors will fit your car and you will need them, oh and yea you'll need a fuel pump as well...either the pump off the 06' a STI pump or (and best choice) a Walbro 255 for like $90.

you could also search on modding your stock injectors if your going for cheapest route possible.

adn as said ^^^ your current reflash won't work with the vf39 and neither will any of Cobb's shelf maps. The only year cobb has shelf maps for the vf39 is the 06-07 wrx.

amayhem · 03-06-2007, 03:10 PM

does anyone know if this install will work with a 06 wrx upgrade to a STI TMIC and a FP18G? cuz ima do this tomorrow.. and i dont have any dyi... if anyone knows where ican find one.. please let me know

sluflyer06 · 03-09-2007, 11:07 AM

yes it will...it should work for almost all stock mount turbos out there.

SixSick6 · 03-09-2007, 11:42 AM

Where is the link on Cobbs website?

Just so you guys know, the brass restrictor is common with IHI turbos because their wastegates are so small and open at a relatively low threshhold. The brass restrictor is there to even the boost pressure out. If it weren't there, the pressure leaving the compressor would hit the wastegate at once and open it that much earlier than it already does. The stock wastegate on the RHF55 series starts to open at 8 psi and is fully extended by 10 psi. Putting the restrictor in place changes the dynamic of how/when the wastegate diapragm operates when it recieves it's signal.

Here is more info from my own forum. We have IHI turbos too:
http://www.mx6.com/forums/showthread.php?t=104772

Here is a simple test for your own wastegates:
http://www.mx6.com/forums/showthread.php?t=118043

And here is my wastegate thread:
http://forums.nasioc.com/forums/show...php?p=17298704

jeeps1998 · 03-11-2007, 06:39 PM

SCribed

Weakness · 03-14-2007, 12:23 PM

Quote:

Originally Posted by SixSick6

Where is the link on Cobbs website?

I hope you are kidding, but for post count sake (hehehe) it is http://www.cobbtuning.com.

06rexwagon · 03-18-2007, 09:39 PM

Quote:

Originally Posted by tankerWRX

I think this is the one you need. http://www.subaruparts.com/cart/?pn=15197AA060

Part #15197AA060

As for modifying it you basically just drill a hole because the spacing for the bolts are different.

That's the same one as the TD04. I just bought it and it's not for the VF39 so now I have to modify it or order another.

NRTmotorsports · 03-22-2007, 02:02 PM

Dumb question, but if I have a VF39 with the pill in the vacuum line, theres no need to drill? Drilling is only neccessary if sawpping the stock TD04 pill to the VF39 correct? Just wanted to clear that up, its going in this weekend. Thanks

06rexwagon · 03-22-2007, 02:49 PM

I believe the pill that comes with the vf39 is slightly larger than the #57 drill bit that cobb uses. You may have trouble hitting target boost. I'm installing my vf39 next week with the vf39 pill and I'll let you know how it does. Since I'm tuning it myself, I can adjust my WGDC's if I don't hit target boost.

NRTmotorsports · 03-22-2007, 04:16 PM

Im still confused a bit, if I order a stock vacuum "T" with the pill do I still need to modify?

06BlackSTIwith550WHP · 03-22-2007, 04:20 PM

Quote:

Originally Posted by djennison

+1 for swapping turbos with flip flops on!

thats funny, when i work on my car in my garage I work barefoot, whenever someone walks the first thing I hear is why the hell are you barefoot?

E6V6I6L · 03-22-2007, 10:03 PM

I spoke with cobb before I did mine and they told me first hand that an 04/05 sti restrictor pill is the right size. I decided to drill mine cuz the bit was only
0.70 but if a local dealer has one might as well get it.

sluflyer06 · 03-22-2007, 10:29 PM

i would start smaller (stock td04 pill) and work your way up to the #57...i've been running the cobb stage 3 shelf map for a month and a half or so and can't hit target boost whether its 83F or 10F in any gear....i ordered the stock vacuum line with pill at the parts department at my dealer and is coming in tomorrow, i'm gonna run it stock size and see what happens....the highest boost i get is about 15psi in 4th gear.

also for you guys already running the 39's in your 06-07 when are you getting full boost? i'm not getting full spool until around 4K.

06rexwagon · 03-22-2007, 10:39 PM

Quote:

Originally Posted by sluflyer06

i would start smaller (stock td04 pill) and work your way up to the #57...i've been running the cobb stage 3 shelf map for a month and a half or so and can't hit target boost whether its 83F or 10F in any gear....i ordered the stock vacuum line with pill at the parts department at my dealer and is coming in tomorrow, i'm gonna run it stock size and see what happens....the highest boost i get is about 15psi in 4th gear.

also for you guys already running the 39's in your 06-07 when are you getting full boost? i'm not getting full spool until around 4K.

My coworker hits 16.5 lbs by 3200 rpm on his vf39 with a fmic. That's with a protune though.

06rexwagon · 03-22-2007, 10:39 PM

Quote:

Originally Posted by E6V6I6L

I spoke with cobb before I did mine and they told me first hand that an 04/05 sti restrictor pill is the right size. I decided to drill mine cuz the bit was only
0.70 but if a local dealer has one might as well get it.

Good to know. Mine came with all the vacuum lines and the stock sti boost solenoid.

ray101381 · 03-23-2007, 10:17 AM

i got a used vf39 off a 06 sti, does that means i should use my stock vacuum line and drill it to the #57 bit or use the vacuum line that came with the turbo?

biker921 · 03-23-2007, 10:25 AM

Wow, now that's a funny thing. Google has a search bar that does most of the hard work. A person just need to know the name of what they're looking for. Come on now sixer.

Quote:

Originally Posted by Weakness

I hope you are kidding, but for post count sake (hehehe) it is http://www.cobbtuning.com.

biker921 · 03-23-2007, 10:28 AM

I'm running pretty much stock as far as intake/exhaust goes on my 06 WRX. Will I need to upgrade my fuel pump or injectors for this swap?

ray101381 · 03-23-2007, 04:13 PM

you'll def need a new fuel pump

biker921 · 03-23-2007, 05:05 PM

Any you'd recommend over another?

Quote:

Originally Posted by ray101381

you'll def need a new fuel pump

biker921 · 03-24-2007, 01:10 PM

Would just the STi Pump work with injectors?

TopEndPull · 03-24-2007, 01:26 PM

just get a walbro, its only a 100 bucks.

06rexwagon · 03-24-2007, 05:24 PM

VF39 went on yesterday. Shredded my hands up pretty good. On the oil drain rubber line, I used a real screw type hose clamp to hold it to the hard line on the turbo and it kept it in place. I'm running the sti pill and hitting target boost.

alpnwhite96 · 03-25-2007, 07:54 AM

bleh my setup is only hitting about 13.5 psi, read from the accessport.

03-06-2007, 03:10 PM	#53
amayhem Scooby Newbie Member#: 137236 Join Date: Jan 2007	hey does anyone know if this install will work with a 06 wrx upgrade to a STI TMIC and a FP18G? cuz ima do this tomorrow.. and i dont have any dyi... if anyone knows where ican find one.. please let me know

03-09-2007, 11:42 AM	#55
SixSick6 Scooby Newbie Member#: 76658 Join Date: Dec 2004	Where is the link on Cobbs website? Just so you guys know, the brass restrictor is common with IHI turbos because their wastegates are so small and open at a relatively low threshhold. The brass restrictor is there to even the boost pressure out. If it weren't there, the pressure leaving the compressor would hit the wastegate at once and open it that much earlier than it already does. The stock wastegate on the RHF55 series starts to open at 8 psi and is fully extended by 10 psi. Putting the restrictor in place changes the dynamic of how/when the wastegate diapragm operates when it recieves it's signal. Here is more info from my own forum. We have IHI turbos too: http://www.mx6.com/forums/showthread.php?t=104772 Here is a simple test for your own wastegates: http://www.mx6.com/forums/showthread.php?t=118043 And here is my wastegate thread: http://forums.nasioc.com/forums/show...php?p=17298704 Last edited by SixSick6; 03-09-2007 at 12:15 PM.

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03-09-2007, 11:07 AM	#54
sluflyer06 Scooby Specialist Member#: 111641 Join Date: Apr 2006 Chapter/Region: MWSOC Location: St. Louis, MO Vehicle: 2020 CWP STi RIP - 06' WRX w/ 6spd	yes it will...it should work for almost all stock mount turbos out there.

03-11-2007, 06:39 PM	#56
jeeps1998 Scooby Newbie Member#: 99473 Join Date: Oct 2005 Location: WA Vehicle: 2006 WRX TR stg 2 Blue	SCribed

03-22-2007, 02:02 PM	#59
NRTmotorsports Scooby Specialist Member#: 16517 Join Date: Mar 2002 Chapter/Region: NESIC Location: Weymouth, MA Vehicle: '13 BRZ	Dumb question, but if I have a VF39 with the pill in the vacuum line, theres no need to drill? Drilling is only neccessary if sawpping the stock TD04 pill to the VF39 correct? Just wanted to clear that up, its going in this weekend. Thanks

03-22-2007, 02:49 PM	#60
06rexwagon Scooby Specialist Member#: 114730 Join Date: May 2006 Chapter/Region: SWIC Location: Albuquerque, NM Vehicle: 2006 WRX Limited Wag [email protected]	I believe the pill that comes with the vf39 is slightly larger than the #57 drill bit that cobb uses. You may have trouble hitting target boost. I'm installing my vf39 next week with the vf39 pill and I'll let you know how it does. Since I'm tuning it myself, I can adjust my WGDC's if I don't hit target boost.

03-22-2007, 04:16 PM	#61
NRTmotorsports Scooby Specialist Member#: 16517 Join Date: Mar 2002 Chapter/Region: NESIC Location: Weymouth, MA Vehicle: '13 BRZ	Im still confused a bit, if I order a stock vacuum "T" with the pill do I still need to modify?

03-22-2007, 10:03 PM	#63
E6V6I6L Scooby Specialist Member#: 123710 Join Date: Aug 2006 Chapter/Region: MWSOC Location: On the toilet	I spoke with cobb before I did mine and they told me first hand that an 04/05 sti restrictor pill is the right size. I decided to drill mine cuz the bit was only 0.70 but if a local dealer has one might as well get it.

03-22-2007, 10:29 PM	#64
sluflyer06 Scooby Specialist Member#: 111641 Join Date: Apr 2006 Chapter/Region: MWSOC Location: St. Louis, MO Vehicle: 2020 CWP STi RIP - 06' WRX w/ 6spd	i would start smaller (stock td04 pill) and work your way up to the #57...i've been running the cobb stage 3 shelf map for a month and a half or so and can't hit target boost whether its 83F or 10F in any gear....i ordered the stock vacuum line with pill at the parts department at my dealer and is coming in tomorrow, i'm gonna run it stock size and see what happens....the highest boost i get is about 15psi in 4th gear. also for you guys already running the 39's in your 06-07 when are you getting full boost? i'm not getting full spool until around 4K.

03-23-2007, 10:17 AM	#67
ray101381 Scooby Specialist Member#: 131327 Join Date: Nov 2006 Chapter/Region: MAIC Location: Alexandria, VA Vehicle: 2013 2014 BMW M5 CP BMW Individual LSB	i got a used vf39 off a 06 sti, does that means i should use my stock vacuum line and drill it to the #57 bit or use the vacuum line that came with the turbo?

03-23-2007, 10:28 AM	#69
biker921 Scooby Specialist Member#: 118236 Join Date: Jun 2006 Chapter/Region: TXIC Location: Austin Vehicle: 2020 STI Series. White	I'm running pretty much stock as far as intake/exhaust goes on my 06 WRX. Will I need to upgrade my fuel pump or injectors for this swap?

03-23-2007, 04:13 PM	#70
ray101381 Scooby Specialist Member#: 131327 Join Date: Nov 2006 Chapter/Region: MAIC Location: Alexandria, VA Vehicle: 2013 2014 BMW M5 CP BMW Individual LSB	you'll def need a new fuel pump

03-24-2007, 01:10 PM	#72
biker921 Scooby Specialist Member#: 118236 Join Date: Jun 2006 Chapter/Region: TXIC Location: Austin Vehicle: 2020 STI Series. White	Would just the STi Pump work with injectors?

03-24-2007, 01:26 PM	#73
TopEndPull Scooby Specialist Member#: 126112 Join Date: Sep 2006 Chapter/Region: TXIC Location: Houston,Texas Vehicle: 93.5 Toyota Supra Red	just get a walbro, its only a 100 bucks.

03-24-2007, 05:24 PM	#74
06rexwagon Scooby Specialist Member#: 114730 Join Date: May 2006 Chapter/Region: SWIC Location: Albuquerque, NM Vehicle: 2006 WRX Limited Wag [email protected]	VF39 went on yesterday. Shredded my hands up pretty good. On the oil drain rubber line, I used a real screw type hose clamp to hold it to the hard line on the turbo and it kept it in place. I'm running the sti pill and hitting target boost.

03-25-2007, 07:54 AM	#75
alpnwhite96 Scooby Specialist Member#: 115482 Join Date: May 2006 Chapter/Region: MAIC Location: Richmond, VA Vehicle: 2006 WRX Limited Aspen White	bleh my setup is only hitting about 13.5 psi, read from the accessport.