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Old 08-27-2007, 02:36 PM   #126
Foska Oats
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Quote:
Originally Posted by 06subieWRX View Post
yea same here..... I was execting round 290 but 280 still is way better than stage 2. I'm running a cobb up-pipe, hks dp, borla xr-1 all catless. also k&n typhoon intake. I want to do the borla header soon and a lightweight pulley set also. what a huge difference from stage 2! can't wait for the protune and another run on the dyno.
The torque is what makes the differnces. I will take that torque figure anyday over getting more horses. Torque is what does damage on the track, it wins races. Just watch your box though.
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Old 08-27-2007, 04:48 PM   #127
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yea it has a ton of torque also.... Need to look at the dyno sheet again... since the up pipe was leaking I didn't pay much attention to it.
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Old 08-27-2007, 06:47 PM   #128
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Quote:
Originally Posted by Foska Oats View Post
The torque is what makes the differnces. I will take that torque figure anyday over getting more horses. Torque is what does damage on the track, it wins races. Just watch your box though.
Torque directly dictates acceleration, but a car making more horsepower will be faster thanks to mechanical advantage, ie: less torque in the high HP rpms of 2nd gear is still faster than low end torque in 3rd gear.

Its fun, but HP ftw.
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Old 08-27-2007, 07:09 PM   #129
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Sooo how does one go about getting this thread sticky'd?? This write up looks so good I might be doing the next upgrade by myself
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Old 08-27-2007, 09:22 PM   #130
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hmmm...might have to install the VF39 from my STi on the 9-2X now that I have the green on the STi.
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Old 08-28-2007, 09:25 AM   #131
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Question Just finished VF39 & STI TMIC swap on '07 FXT...

I have a tune scheduled with my tuner in Atlanta GA but i live in Tampa FL. My tuner said as long as I stay off boost and disconnect the wastegate arm I can safely drive up until the tune can be done. Is this the safest way I can get it there besides the obvious trailer route? There are no EM options besides UTEC currently for my model year Forester and I am getting ECUTEK'd Friday. Thanks for any advice!
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Old 08-28-2007, 12:05 PM   #132
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Originally Posted by Robbs FSTI View Post
I have a tune scheduled with my tuner in Atlanta GA but i live in Tampa FL. My tuner said as long as I stay off boost and disconnect the wastegate arm I can safely drive up until the tune can be done. Is this the safest way I can get it there besides the obvious trailer route? There are no EM options besides UTEC currently for my model year Forester and I am getting ECUTEK'd Friday. Thanks for any advice!
Yes man, you should be ok with the gate off.
Just take your time.
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Old 08-28-2007, 12:09 PM   #133
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Quote:
Originally Posted by ExpO View Post
Torque directly dictates acceleration, but a car making more horsepower will be faster thanks to mechanical advantage, ie: less torque in the high HP rpms of 2nd gear is still faster than low end torque in 3rd gear.

Its fun, but HP ftw.
I get what youa re saying, but I will take those figures anyday.
A car on this setup, will do better on the strip, than a car with more horses and less torque, depending on the figures of course
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Old 08-28-2007, 01:32 PM   #134
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Quote:
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Yes man, you should be ok with the gate off.
Just take your time.
Ok thanks I'll post how it goes when I get back!
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Old 08-29-2007, 02:48 AM   #135
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Alright. this whole thread is REALLY informative, and thanks a lot...but for newbs like me...i just got a few questions. I did read the whole thread, and i plan on getting a VF39 in the future but i just need a short summary to help remember all this.

1. a 07 WRX's injectors can handle this turbo, if not, what can? (again sorry)
2. better fuel pump
3. dont install this turbo without a accessport handy i'm assuming...or have a tuning shop put the turbo in along with a protune.
4. STI TMIC (getting this before a turbo anyway)
5. anything else i forgot that i should know...

again i'm really sorry, but this is 6 pages of talk that i and everyone else understand, but just might want summarized. Thanks a bunch guys!!
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Old 08-29-2007, 04:27 AM   #136
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Quote:
Originally Posted by Cosmic_Subie48 View Post
Alright. this whole thread is REALLY informative, and thanks a lot...but for newbs like me...i just got a few questions. I did read the whole thread, and i plan on getting a VF39 in the future but i just need a short summary to help remember all this.

1. a 07 WRX's injectors can handle this turbo, if not, what can? (again sorry)
2. better fuel pump
3. dont install this turbo without a accessport handy i'm assuming...or have a tuning shop put the turbo in along with a protune.
4. STI TMIC (getting this before a turbo anyway)
5. anything else i forgot that i should know...

again i'm really sorry, but this is 6 pages of talk that i and everyone else understand, but just might want summarized. Thanks a bunch guys!!
I have a vf39 on my 07 WRX. Im running stock injectors, so its plenty enough to handle this turbo. ANything bigger than ya start thinking about upgrading injectors. But with the vf39 your fine.

Fuel pump, its recommended, but...you can get away with it, you may max it out but still, I got the walbro just to be safe, only like 99 bucks or something.

Cobb Axis Port, or any other type of EM is a must with any other aftermarket turbo. TUNING

STI TMIC is a good upgrade for the vf39. Works well, I used to have this TMIC on my car! Perfect upgrade, or you can go bigger like SSAC TMIC, or APS TMIC.
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Old 08-29-2007, 09:08 AM   #137
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Good info...
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Old 09-20-2007, 03:55 PM   #138
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My vf 39 came with the stock sti pill in the line. Does anyone know if i have to modify this one? I know you have to modify the stock wrx pill, but what about the stock sti pill?
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Old 09-20-2007, 03:55 PM   #139
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bump ttt
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Old 09-20-2007, 03:56 PM   #140
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bump it up
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Old 09-20-2007, 04:02 PM   #141
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Why did you bump it twice in 2 minutes?
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Old 09-20-2007, 04:08 PM   #142
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haha sorry i just really need to know
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Old 09-20-2007, 04:18 PM   #143
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Quote:
Originally Posted by stealth06wrx View Post
My vf 39 came with the stock sti pill in the line. Does anyone know if i have to modify this one? I know you have to modify the stock wrx pill, but what about the stock sti pill?
Stock STI Pill u can leave be, no need to modify
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Old 09-20-2007, 05:47 PM   #144
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awsome! thank you.
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Old 09-21-2007, 01:02 AM   #145
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Quote:
Originally Posted by djennison View Post
+1 for swapping turbos with flip flops on!

flippies are crazy
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Old 11-20-2007, 06:24 PM   #146
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stupid question...the VF39 I bought has coolant lines attached already. do I still need to break the ones from the td04 or are those parts of the instructions for people who got a turbo with no lines?
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Old 11-20-2007, 08:22 PM   #147
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Just use the coolant lines that are attached to your turbo already. He is only showing if you dont have coolant lines that you could customize your td04 coolant lines to fit the vf39.
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Old 11-21-2007, 07:02 AM   #148
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First I need to find someone to put my damn injectors in. I don't have the time or all the tools I would like and the DIY car center here on post is closed for the entire four day weekend. If I don't get all this done by Monday I can't do it again until springtime so hopefully I can get someone to install the injectors for me at a shop where it will take a lot less time.
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Old 11-21-2007, 09:36 AM   #149
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If you really wanted to do it yourself I found a thread that has instructions on how to do it. This might help. haha

http://forums.nasioc.com/forums/showthread.php?t=964852
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Old 11-21-2007, 12:53 PM   #150
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Quote:
Originally Posted by Foska Oats View Post
I get what you are saying, but I will take those figures anyday.
A car on this setup, will do better on the strip, than a car with more horses and less torque, depending on the figures of course
Dead wrong.

For one, you can't have more hp without having more torque at a given rpm... If you're talking about low end tq vs high rpm hp you're still wrong.. At the strip you'll spend most of your time above 5k, you don't even experience the low end unless you bog your launch.

The proof is in the pudding... a laggy turbo that makes x amount of torque near redline (higher hp, less low end tq) is going to murder a turbo that makes the same peak torque at 3500 rpm and fades away.

Something something 800WTQ deisel motor vs 800HP formula motor.

Last edited by ExpO; 11-21-2007 at 01:03 PM.
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