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Old 05-20-2009, 01:05 AM   #1
Tucker587
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Default 07 Wrx Vf48!!

Hi guys, ive been eagerly waiting to do this for quite the time now. I currently own a stg II 07 wrx that put down 232/324 at P&L's dyno with the following mods on a conservative tune:
Invidia V3 Downpipe
Invidia Uppipe
Walbro 255
STI TMIC
Im scheduled for a retune today, but this time with a few more goodies. In addition to the previous mods, I have added a K&N typhoon, GMS turbo inlet, VF48 and a HOA 3 port boost solenoid. Im excited to see what she can do after reading up about the success with the vf48's lately!!! Keep in mind that I will still be running stock injectors for now. Ill keep ya guys updates as the hours go by. Any nice inputs would be greatly appreciated. Thanks for all your time.

UPDATE: May 21st, 2009
Shes back and man am I glad. She put down 280/280!!! The torque curve "line" is amazing and pulls all the way to redline with torque dieing down to about 220 by 7krpm IIRC. I will scan the results when I get home in a few hours. I however now have 3 dilemas in my situation. 1st major dilema = Injectors are almost maxed at 96% IDC. 2nd= STI TMIC is limited to 17.5 psi of boost (Jorge even crushed the spring on the bpv). 3rd= Stock catback is maxed out!!. The amount of backpressure after 5k RPM is ridiculous. Plx give me any ideas all u fans!!!
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Last edited by Tucker587; 05-21-2009 at 02:17 PM.
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Old 05-20-2009, 07:17 AM   #2
RonJitsu
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Good luck today.

Your TQ is already pretty big.
Hopefully you'll end up with closer to 300whp tho.
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Old 05-20-2009, 08:27 AM   #3
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Hey by all means post your dyno today. I've got the same setup as you do on my 08 except I have a FMIC and 850cc injectors (just incase I go to a 20G if I don't find the 48 to be powerfull enough). I am hoping to get protuned next week after I can finish my build.

I just noticed you're over in kay-zoo and we both got red cars... Who is your tuner?? What do you say we take our cars down I-94 and see where we top out at??

Last edited by scramjett; 05-20-2009 at 08:35 AM.
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Old 05-20-2009, 08:47 AM   #4
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Stock catback as well? Interested to see what you end up with if so.
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Old 05-20-2009, 02:08 PM   #5
Tahoe SC
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hey let us know asap when you get this done today.

i'm looking at the VF48 as well!
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Old 05-20-2009, 02:26 PM   #6
scramjett
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Quote:
Originally Posted by Tahoe SC View Post
hey let us know asap when you get this done today.

i'm looking at the VF48 as well!
I might have to sell you mine before I install it! Someone has a 20G near my house...
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Old 05-20-2009, 04:19 PM   #7
Tahoe SC
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if you get the 20...I HAVE DIBS!!!!

i was also looking at the 18g, but 20g is more than my heart can take!
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Old 05-20-2009, 06:18 PM   #8
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tucker, great to hear, those 48's have been very popular lately
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Old 05-20-2009, 09:47 PM   #9
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Subscribed!
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Old 05-21-2009, 12:50 AM   #10
RonJitsu
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Well..... How'd it go?
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Old 05-21-2009, 12:55 AM   #11
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welllll.... we're waiting.
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Old 05-21-2009, 02:12 PM   #12
Tucker587
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Well time for an update. Plx check post #1 again as i will edit it with the results!!!!
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Old 05-21-2009, 02:22 PM   #13
Malaka628
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I say you get P & L's catback. Its amazing. I would upgrade your injectors and get a spearco top mount. PM me if you need a video of the exhaust.
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Old 05-21-2009, 02:25 PM   #14
Tucker587
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Jorge at P&L motorsports tuned the car. Jorge is absolutely the man. He spent countless hours talking to me in person before we even attempted to dyno the car. IF anyone knows Jorge, they too can vouch for me and say he is very very cautious about the tuning he does. He will not and I repeat not push the boundaries of your car at all, unless you ask for it . He gave me what he considered "the most conservative of conservative tunes" lol.
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Old 05-21-2009, 02:42 PM   #15
RonJitsu
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For stock injectors and only running 17.5 psi, I'd say those are great results. Congrats!
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Old 05-21-2009, 02:46 PM   #16
Tucker587
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Thanks all. Im absolutely stunned at how well this "identical to a vf39" turbo can hold power to redline.
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Old 05-21-2009, 02:49 PM   #17
jay25RS
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What kind of dyno was this?
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Old 05-21-2009, 02:56 PM   #18
arch4life
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seems right on track for 17.5-18 psi. could he not push any more psi? was that why he was crushing the bpv?

as far as identical to vf39, it is, except the wastegate is sprung a bit stiffer, thats why people say it holds better to redline.

you can do the same thing with a vf39 with a wastegate helper spring, or even a vf30, 34, 43, etc. (mebbe the 43 is sprung heavier too) top end flow is exactly in line between my vf30 and my vf39, same flow. verified via logs.
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Old 05-21-2009, 03:02 PM   #19
Tahoe SC
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wait...is there a typo or was this a totally different dyno than before? your torque decreased?
And as far as your injectors...same as the STI but different fuel pump...so stock tune on them must be horrible!
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Old 05-21-2009, 04:13 PM   #20
Cyni
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Losing 40wtq from the TD04 is strange... Interested to see the plot.

That's on the same dyno?
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Old 05-21-2009, 05:35 PM   #21
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Quote:
Originally Posted by Cyni View Post
Losing 40wtq from the TD04 is strange... Interested to see the plot.

That's on the same dyno?
i thought that too....

they put down 316/360 with a Saab on a similar setup. http://forums.nasioc.com/forums/show....php?t=1478419

at any rate, good work and keep us informed!! i'm curious to see what the catback/injectors do...i'm convinced this is the turbo i'm going to go with for my ride as well.
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Old 05-21-2009, 05:58 PM   #22
scramjett
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Quote:
Originally Posted by wrx-chris View Post
i thought that too....

they put down 316/360 with a Saab on a similar setup. http://forums.nasioc.com/forums/show....php?t=1478419

at any rate, good work and keep us informed!! i'm curious to see what the catback/injectors do...i'm convinced this is the turbo i'm going to go with for my ride as well.

Congrats on your newfound power!

So anyways, did you drive all the way to Ill to get tuned or were you in the area? That's a heck of a drive in an untuned car! Seing as I'm about 80 miles from K-zoo maybe I could make the trek one day to P&L.

So that stock catback is *that* bad... Yikes!!

So I'm guessing my fmic and turboback and injectors would put be around 310whp on the 48 and tappering down to 225lb-ft @ 7,000rpms just like every P&L tuned VF tappers down to. So do I sell the 48 and step up to the 20G for more high end? Questions, questions, questions....

My offer still stands, when I get my car together and tuned I'll come out to k-zoo and race you.

Last edited by scramjett; 05-21-2009 at 06:03 PM.
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Old 05-21-2009, 06:23 PM   #23
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I don't even know where you guys are comparing the Saab vs this car?

This car is running less boost, due to a more restrictive setup, and due to a cooling deficiency. Add ~97% IDC's. I don't know where the armchair tuner thinks anyone is responsibly going to try and push more out of a setup...

Give me a better IC, and 20-21 PSI on the bottom end and you'll see 350 lb/ft of torque on a different car.

You guys really can't compare one car to another. Just use it as a general guide.

Jorge (RiftsWRX)
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Old 05-21-2009, 06:26 PM   #24
Cyni
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So the Intercooler was the main thing holding the tq numbers back Jorge?

Wasn't the same STi Top Mount on the car for the TD04 tune though? Just surprising that he would lose that amount of torque with an "upgraded" turbo. I would've expected it to be equal or better all things considered.

The catback would only hold back the top end would it not?
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Old 05-21-2009, 06:31 PM   #25
Tucker587
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Yes same dyno (dynojet IIRC), as for the loss in torque... the 324tq achieved in my previous tune only lasted for so long before it dropped drastically. The 280 torque i put down on this tune holds for about 3k rpm more lol. As I write this im in the process of scanning the two dyno sheets. Ill keep u guys updated in about 10 minutes so you can see the differences yourselves. Plx keep in mind that I have not only one factor limiting me, but 3. Inj, top mount and exhaust. How am I gonna make more power without more headroom on stock injectors ?? And If i did have injectors, how would I raise the boost to make more power with my Intercooler. and finally lol, if i did have those two, I wouldnt be making much more power on the stock exhaust lol. Next time around ill make the torque I should be making without all the restrictions

Last edited by Tucker587; 05-21-2009 at 06:41 PM.
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