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Old 11-12-2012, 03:36 PM   #51
WMCCook29
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Quote:
Originally Posted by kilfarsnar View Post
IIRC the WRX doesn't really have a splitter. It's not needed with the smaller TMIC.
The necessity of a splitter has NOTHING to do with intercooler size! For any intercooler to work properly you need to force air through it, which is why the WRX comes WITH a splitter.
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Old 11-12-2012, 03:52 PM   #52
chitownej
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Lol this is getting confusing. I know I need turbo Tmic fuel pump and tune. But now half the people say I dont need splitter half the people say I do. And then from that half say I need to cut it and yadayada
Confused ??
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Old 11-12-2012, 03:57 PM   #53
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For ANY TMIC to properly be used, you NEED a splitter. Otherwise you're just sucking all that air around the engine and the TMIC barely sees any of it. Do yourself a favor and just buy the STI splitter if you get the TMIC lol
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Old 11-12-2012, 04:25 PM   #54
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Quote:
Originally Posted by Mr Wrex View Post
...Do yourself a favor and just buy the STI splitter if you get the TMIC lol
^ Yes.

I'm late to the party but have the setup you seem to be looking for...

- VF48 (bolts up just the same as a VF39 & VF43)
- STI TMIC & STI splitter (both from an '07 STI)
- SPT intake (not a necessity)
- Perrin turbo inlet (*read note below)
- Walbro 255 fuel pump
- Stock injectors (*read note below)
- COBB 3" catted TBE
- Grimmspeed 3 Port EBCS

When I was looking to do this upgrade I looked here then contacted 2 local reputable tuners. The above setup was the general consensus to make the upgrade work properly.

If you have the stock intake on the car, keep it. My tuner liked the SPT intake but said he could have achieved the same numbers with the stock intake as well. I already had the SPT intake installed so I just stuck with it.

* When installing the VF48 we discovered that my stock turbo inlet had a couple of small tears near where it connects to the turbo. So I installed a new Perrin one in its place. I've read that the stock inlet has a tendency to tear/rip like mine did on the '06-'07 models. Because of this I recommend planning ahead and just replacing/upgrading the inlet when you upgrade the turbo.

* The stock injectors should be plenty adequate for the VF39/VF43/VF48 with 91-94 octane fuel. My tuner recommended that I stick with the stock injectors since I wasn't planning on going e85. with the tune, at 19psi, I believe my maximum duty cycle on the injectors is around 85% so there is plenty of headroom.

(Note that if you plan on going with e85 you will want to upgrade the injectors.)

Last edited by sc00ter; 11-13-2012 at 12:57 AM.
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Old 11-12-2012, 04:38 PM   #55
chitownej
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Quote:
Originally Posted by sc00ter View Post
^ Yes.

I'm late to the party but have the setup you seem to be looking for...

- VF48 (bolts up just the same as a VF39 & VF43)
- STI TMIC & STI splitter (both from an '07 STI)
- SPT intake (not a necessity)
- Perrin turbo inlet (*read note below)
- Walbro 255 fuel pump
- Stock injectors (*read note below)
- COBB 3" catted TBE

When I was looking to do this upgrade I looked here then contacted 2 local reputable tuners. The above setup was the general consensus to make the upgrade work properly.

If you have the stock intake on the car, keep it. My tuner liked the SPT intake but said he could have achieved the same numbers with the stock intake as well. I already had the SPT intake installed so I just stuck with it.

* When installing the VF48 we discovered that my stock turbo inlet had a couple of small tears near where it connects to the turbo. So I installed a new Perrin one in its place. I've read that the stock inlet has a tendency to tear/rip like mine did on the '06-'07 models. Because of this I recommend planning ahead and just replacing/upgrading the inlet when you upgrade the turbo.

* The stock injectors should be plenty adequate for the VF39/VF43/VF48 with 91-94 octane fuel. My tuner recommended that I stick with the stock injectors since I wasn't planning on going e85. with the tune, at 19psi, I believe my maximum duty cycle on the injectors is around 85% so there is plenty of headroom.

(Note that if you plan on going with e85 you will want to upgrade the injectors.)

Okay! Ill look for sti splitter then and the turbo inlet as well. I have spt intake and tbe already!
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Old 11-12-2012, 04:51 PM   #56
NOT_2_SLOW
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Quote:
Originally Posted by sc00ter View Post
^ Yes.

I'm late to the party but have the setup you seem to be looking for...

- VF48 (bolts up just the same as a VF39 & VF43)
- STI TMIC & STI splitter (both from an '07 STI)
- SPT intake (not a necessity)
- Perrin turbo inlet (*read note below)
- Walbro 255 fuel pump **Not needed
- Stock injectors (*read note below)
- COBB 3" catted TBE

When I was looking to do this upgrade I looked here then contacted 2 local reputable tuners. The above setup was the general consensus to make the upgrade work properly.

If you have the stock intake on the car, keep it. My tuner liked the SPT intake but said he could have achieved the same numbers with the stock intake as well. I already had the SPT intake installed so I just stuck with it.

* When installing the VF48 we discovered that my stock turbo inlet had a couple of small tears near where it connects to the turbo. So I installed a new Perrin one in its place. I've read that the stock inlet has a tendency to tear/rip like mine did on the '06-'07 models. Because of this I recommend planning ahead and just replacing/upgrading the inlet when you upgrade the turbo.

* The stock injectors should be plenty adequate for the VF39/VF43/VF48 with 91-94 octane fuel. My tuner recommended that I stick with the stock injectors since I wasn't planning on going e85. with the tune, at 19psi, I believe my maximum duty cycle on the injectors is around 85% so there is plenty of headroom.

(Note that if you plan on going with e85 you will NEED TO upgrade the injectors.)
Fuel pump is not needed unless you upgrade injectors, stock fuel pump flows more than enough for stock injectors.
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Old 11-12-2012, 04:53 PM   #57
H_wells3000
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my opinion. Headers, up pipe (if 07 wrx is catted), turbo inlet, sti splitter, ebcs, 255 fuel pump, i say go bigger on the turbo by just a tad like a Big 16g, better then VF. you will be boooostin. Your tranny could handle more then 300, avoid launching and stick with the stock clutch and you'll be golden.
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Old 11-12-2012, 06:19 PM   #58
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Quote:
Originally Posted by H_wells3000 View Post
my opinion. Headers, up pipe (if 07 wrx is catted), turbo inlet, sti splitter, ebcs, 255 fuel pump, i say go bigger on the turbo by just a tad like a Big 16g, better then VF. you will be boooostin. Your tranny could handle more then 300, avoid launching and stick with the stock clutch and you'll be golden.
2006+ WRX does not have a catted up pipe.

Definitely a great point about the tranny and the clutch. The stock 5 speed can handle 300whp+ (mine has been going strong for a while now). Just avoid launching it and keep the stock clutch so you can be sure it's the weakest link in the drivetrain. My stock clutch has been going strong on this setup for almost a year now with absolutely no issues.
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Old 11-12-2012, 06:19 PM   #59
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Quote:
Originally Posted by chitownej View Post
Lol this is getting confusing. I know I need turbo Tmic fuel pump and tune. But now half the people say I dont need splitter half the people say I do. And then from that half say I need to cut it and yadayada
Confused ??
Don't listen to any advice from the people who said you don't need a new splitter with a bigger TMIC, because you do. Follow this link to get a better understanding of what we're talking about: http://forums.nasioc.com/forums/show....php?t=1985337
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Old 11-12-2012, 07:10 PM   #60
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Quote:
Originally Posted by WMCCook29 View Post
Don't listen to any advice from the people who said you don't need a new splitter with a bigger TMIC, because you do. Follow this link to get a better understanding of what we're talking about: http://forums.nasioc.com/forums/show....php?t=1985337
TECHNICALLY he can modify his WRX one to do the same job.
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Old 11-12-2012, 07:29 PM   #61
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Quote:
Originally Posted by HinshawWRX View Post
TECHNICALLY he can modify his WRX one to do the same job.
Nooooo waaay...is that why I posted a link to a DIY splitter thread?!? You know what I meant
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Old 11-12-2012, 07:39 PM   #62
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Since your improving the power on your car, my suggestion is to change the OE engine oil pick up tube to a beefier after-market one (look up killer b oil pick up), if you have not already.
There has been instance where the welds on the pick-up tube would crack on the MY06-07 and starve the engine of oil.
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Old 11-12-2012, 08:49 PM   #63
chitownej
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Quote:
Originally Posted by WMCCook29 View Post
Nooooo waaay...is that why I posted a link to a DIY splitter thread?!? You know what I meant
Hahah I figured that's how I'd modify it...it's so stupid simple why would I spend $200 like that one poster for the sti size one or even $75-$100, all I do is cut out the pieces from Wrx one on inside to create more space and mold them onto the sides only takes 10 min and I can do it for $0
Makes sense why you need the bigger area for bigger tmic now! So I need
VF48
Turbo inlet
Sti tmic
Fuel pump
Tune
Should be a good project to gain good power!
Mike
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Old 11-13-2012, 12:59 AM   #64
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^^ Throw an upgraded EBCS onto that list as well. I edited my earlier post to include it because I forgot to list it with my mods. I went with the Grimmspeed 3-Port EBCS and it's been flawless.

I replied to your PM as well.
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Old 11-13-2012, 01:35 AM   #65
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If you know of a body shop that works on a lot of STI's, you could probably pick up a STI splitter for well under $100. I don't remember exactly what I paid for mine, it was so long ago, but it was somewhere around $25-40. I had to trim it a little to fit under the smaller scoop.
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Old 11-13-2012, 07:15 AM   #66
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Quote:
Originally Posted by dragonwrx1 View Post
Since your improving the power on your car, my suggestion is to change the OE engine oil pick up tube to a beefier after-market one (look up killer b oil pick up), if you have not already.
There has been instance where the welds on the pick-up tube would crack on the MY06-07 and starve the engine of oil.
Overkill.
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Old 11-13-2012, 05:25 PM   #67
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Quote:
Originally Posted by WMCCook29 View Post
The necessity of a splitter has NOTHING to do with intercooler size! For any intercooler to work properly you need to force air through it, which is why the WRX comes WITH a splitter.
Yes, the WRX has a metal part that goes between the scoop and the intercooler. However, it doesn't have the same horizontal plane that cuts across the middle of the scoop to force air to the front of the IC. So it's not really "splitting" the air. That's what I meant. But yes, the WRX has ducting and a boot to channel the air.
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Old 11-14-2012, 01:20 PM   #68
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Quote:
Originally Posted by 575rider View Post
If you know of a body shop that works on a lot of STI's, you could probably pick up a STI splitter for well under $100. I don't remember exactly what I paid for mine, it was so long ago, but it was somewhere around $25-40. I had to trim it a little to fit under the smaller scoop.
The 06/07 WRX has the exact same scoop as the 06/07 STI so no modification to the splitter is necessary.
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Old 11-14-2012, 01:31 PM   #69
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Sweet mother of God. So much non-sense in here.

Make your life easier...call Turn in Concepts and and they'll tell you everything you need and don't need!
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Old 11-14-2012, 02:32 PM   #70
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OP, why ask people on here when you are ALREADY working with your tuner.

Stop asking people here ASK YOUR TUNER. Looks like you already are. Listen to your tuner, ask him all these questions instead. You will get a lot of misinformation mixed with good information on here. Your tuner can set you straight.

End thread.

PS. Update your profile as it states you have an 02 WRX . I assume you have an 07 WRX?

Last edited by Freep; 11-14-2012 at 02:41 PM.
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Old 11-14-2012, 05:51 PM   #71
chitownej
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Quote:
Originally Posted by Freep View Post
OP, why ask people on here when you are ALREADY working with your tuner.

Stop asking people here ASK YOUR TUNER. Looks like you already are. Listen to your tuner, ask him all these questions instead. You will get a lot of misinformation mixed with good information on here. Your tuner can set you straight.

End thread.

PS. Update your profile as it states you have an 02 WRX . I assume you have an 07 WRX?
I have an 07 Wrx. I bought it about a month ago, I have more important things to do then update my profile on a forum.
I asked here first so I had a background as to what things I needed when I talked to my tuner so I wasn't talking and not understanding what what was.

This also will help other people who might have to same question/s and clear up info other people may have mistaken
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Old 11-14-2012, 05:54 PM   #72
chitownej
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Guys all you need to get sti setup on a Wrx is:
VF48
Sti/larger tmic
Sti splitter
Turbo inlet
Bigger fuel pump
Tune dyno>street

Everything else is just extra, not NEEDED. Ill edit original post to show this so everyone who reads knows thanks!
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Old 11-14-2012, 06:14 PM   #73
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Quote:
Originally Posted by chitownej View Post
Guys all you need to get sti setup on a Wrx is:
VF48
Sti/larger tmic
Sti splitter
Turbo inlet
Bigger fuel pump
Tune dyno>street

Everything else is just extra, not NEEDED. Ill edit original post to show this so everyone who reads knows thanks!
Why do you think you need a fuel pump? It can be added to the list of items not needed.
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Old 11-14-2012, 06:39 PM   #74
HinshawWRX
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Quote:
Originally Posted by chitownej View Post
Guys all you need to get sti setup on a Wrx is:
VF48
Sti/larger tmic
Sti splitter
Turbo inlet
Bigger fuel pump
Tune dyno>street

Everything else is just extra, not NEEDED. Ill edit original post to show this so everyone who reads knows thanks!
STI's and WRX's use the same fuel pump. So why would you need one? Answer is, you don't.
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Old 11-14-2012, 08:57 PM   #75
chitownej
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It's one if those precautionary things just in case, it couldn't hurt and only costs $80-$100 so might as well.
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