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Old 01-24-2010, 12:49 AM   #1
blacktrail
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Default My "rogue" vf39 protune results

Car:

2007 WRX Wagon

Power Mods:

K&N Short Ram Intake
Samco Turbo Inlet
Stock sti VF39 Turbo
Stock sti TMIC
NGK One-step colder plugs
Gtspec UEL Gen II Header
IAG Uppipe with 38mm Tial V-band EWG
Injen 3" DP
Invidia N1 Race 3" CBE
Walbro 255lph FP
Grimmspeed 3-port EBCS
Cobb Accessport V2

And the best part:

Tuned by Jorge of P&L Motorsports
Weather corrected 338awhp & 346awtq @ 14.78 psi (ewg pressure)
Gas was BP pump 93 octane
Dyno was IAG Performance's in house DynoJet
Stock Injectors are at 94% for those curious

Overall, just a few hours later and I'm still scratching my head. I know they're just numbers but even Jorge himself seemed surprised and had to ask me a couple times if I was sure it was a vf39. He basically said he watered it down as much as he could but couldn't go under 14.78 psi because of the ewg. And to think all I asked him was to get as much out of it as he felt comfortable with. I was in no way expecting anywhere near this much power.

Here is the plot, sorry bout the fuzziness my camera's kinda blah.





And heres one of the finishing runs on the dyno.


Big thanks to the IAG Team for their support and the best customer service I've experienced yet, and huge thanks to Jorge for one hell of a tune. Driveability & Power get an A++, smooth as butter.

I highly recommend both parties and will do business with them again.
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Old 01-24-2010, 01:22 AM   #2
radial
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not bad, good job
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Old 01-24-2010, 01:45 AM   #3
wrxtremeWGN
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those are great numbers but why do an ewg setup(all that added cost) and only run 15psi?
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Old 01-24-2010, 01:50 AM   #4
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So, a turbo that doesn't flow enough air to make 300+ on pump, and at less than 15 psi, making 338????



Ya, uhhh, I'm sure it's fun, but you do not have a 340whp car realistically. No offense to the tuner, but with that setup, an EvoIII 16G with a good TMIC or FMIC would be putting down upwards of 375whp on pump gas and 20ish psi, and that's absolutely ridiculous.
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Old 01-24-2010, 09:19 AM   #5
blacktrail
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Quote:
Originally Posted by wrxtremeWGN View Post
those are great numbers but why do an ewg setup(all that added cost) and only run 15psi?
This is the odd part, nobody expected it to make this much "supposable" power so we weren't expecting to leave it that low. I figured it'd be just like every other vf39 and I'd be able to run closer to 19 or 20.

Quote:
Originally Posted by Audiosavvy View Post
So, a turbo that doesn't flow enough air to make 300+ on pump, and at less than 15 psi, making 338????




Ya, uhhh, I'm sure it's fun, but you do not have a 340whp car realistically. No offense to the tuner, but with that setup, an EvoIII 16G with a good TMIC or FMIC would be putting down upwards of 375whp on pump gas and 20ish psi, and that's absolutely ridiculous.
Thats what the dyno told us, yes, as you can see in the printout. I don't really believe its a true 340whp car either but I still think its pretty interesting it came out that way. I can't really compare it myself because this is my first car i've owned with this much power. I just gotta wait until the local strip opens up so I can see what it'll run or hit a dyno day or something of the like.
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Old 01-24-2010, 09:44 AM   #6
paul_p1
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These figures look like crank figures we would get for this turbo setup in the UK.
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Old 01-24-2010, 10:52 AM   #7
pisymbol
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Correction factors are off on the dyno....or that's not a VF39....I thought the stock boost was ~15 pounds! LOL.
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Old 01-24-2010, 11:05 AM   #8
MattPersman
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there dyno reads high normally but they must have just got it recalibrated for this run
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Old 01-24-2010, 11:11 AM   #9
bgod
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Numbers aside I'm sure the car feels great.

Realistically can you achieve those kind of numbers with your set-up on that boost, no way. Dyno error, perhaps.


In any case, crank that sucker up to 20psi because you're leaving a lot on the table. If you think it's great now, get back on the dyno at get that 5psi.
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Old 01-24-2010, 12:08 PM   #10
vusalterego
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Quote:
Originally Posted by pisymbol View Post
Correction factors are off on the dyno....or that's not a VF39....I thought the stock boost was ~15 pounds! LOL.
dyno sheet says the numbers are uncorrected... so no correction factor was used, and it should read similar to any other uncorrected dynojet.. corrected numbers may go down if it was done in a cold environment.
typical VF39 setup should see 275-300whp on an uncorrected dynojet. But on the other hand, the OP doesn't have the typical VF39 bare minimum setup done on the cheap as many people do. that header/EWG combo isn't something you see posts about very often, and can very well contribute to the higher-than-norm numbers.
but even still, those numbers are bananas.. at 15psi?
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Old 01-24-2010, 12:12 PM   #11
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unless i missed it somewhere but your not even running larger injectors. If your still on stock injectors your seeing mid 290's MAYBE slightly more because the car just cant flow anymore fuel. With injectors you would be able to pull out a little more power but nothing close to what you have there. Those are E85 numbers for a 39. Car probably feel great though, im lookin into getting a 39 for my legacy. Enjoy.
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Old 01-24-2010, 07:09 PM   #12
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why were the dyno brakes hit before the run started?
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Old 01-24-2010, 07:31 PM   #13
C J
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Why did you tune the car at only wastegate pressure?
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Old 01-24-2010, 07:47 PM   #14
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subscribed. it might be a little before we see track times and answers here.
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Old 01-24-2010, 08:04 PM   #15
Remnex
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Who gives a ****? Dude is happy with his car, the dyno is a tool, numbers mean ****... how many times do we have to do this with you weenies?
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Old 01-24-2010, 08:34 PM   #16
blacktrail
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Quote:
Originally Posted by vusalterego View Post
dyno sheet says the numbers are uncorrected... so no correction factor was used, and it should read similar to any other uncorrected dynojet.. corrected numbers may go down if it was done in a cold environment.
typical VF39 setup should see 275-300whp on an uncorrected dynojet. But on the other hand, the OP doesn't have the typical VF39 bare minimum setup done on the cheap as many people do. that header/EWG combo isn't something you see posts about very often, and can very well contribute to the higher-than-norm numbers.
but even still, those numbers are bananas.. at 15psi?
Meh, he told me it was corrected from the original run so I just took it with a grain of salt.

Quote:
Originally Posted by RdiggA View Post
unless i missed it somewhere but your not even running larger injectors. If your still on stock injectors your seeing mid 290's MAYBE slightly more because the car just cant flow anymore fuel. With injectors you would be able to pull out a little more power but nothing close to what you have there. Those are E85 numbers for a 39. Car probably feel great though, im lookin into getting a 39 for my legacy. Enjoy.
Thats really all I was expecting. I was just hoping to break 300. But go for it, its worth it.

Quote:
Originally Posted by sidewayz View Post
why were the dyno brakes hit before the run started?
I'm assuming to just get the revs down to start the pull.

Quote:
Originally Posted by C J View Post
Why did you tune the car at only wastegate pressure?
He didn't want to go higher because of the reading the dyno was presenting us with.

Quote:
Originally Posted by jonfrow View Post
subscribed. it might be a little before we see track times and answers here.
I believe the local track opens the 1st of March? Somebody might have to remind me but I'll try an head up there sometime shortly after it opens. That and/or I'll hit a local dyno day and see what that gives me.

Quote:
Originally Posted by Remnex View Post
Who gives a ****? Dude is happy with his car, the dyno is a tool, numbers mean ****... how many times do we have to do this with you weenies?
Thank you, lol. I am extremely pleased with the car. Its a world's difference from the cobb stage 3 ots map and makes stage 2 feel like I was standing still. And no matter what the power actually is I'm completely satisfied with everything its giving me.
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Old 01-24-2010, 10:37 PM   #17
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Quote:
Originally Posted by C J View Post
Why did you tune the car at only wastegate pressure?
Stock injectors most likely...
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Old 01-24-2010, 10:46 PM   #18
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Quote:
Originally Posted by cireturbo View Post
Stock injectors most likely...
Question has been answered already.
And I have run 19 psi on a vf39 on stock injectors.
Newer wrx injectors are bigger than pinks I believe.
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Old 01-24-2010, 11:02 PM   #19
Phatron
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You guys are all talking out of your asses about this and you dont understand how things work.

Turning the boost up to peak at 20psi will gain alot of lowend torque but will in no way effect the boost after 5500rpm, it wont effect max IDC's, and wont effect peak hp.

Max boost, peak hp, and max IDC's all occur at different RPM. Turning the wgdc to 100% and maxing the turbo would only change the boost before 5500rpm and increase the tq.....the peak hp wouldnt change and the max idc wouldnt change.

I bet jorge left the midrange boost down to keep the Torque below 350 ft*lbs......many tuners use 350 ft*lbs as a max torque they will put on a customers car on the stock 5 speed.

Wow.......i just looked at jorge's last couple tuning sessions at IAG.....vf turbos were making 300hp. gt52 did 350 on pump...., gt35 360whp on pump....18g 330whp on pump.

sounds like either the dyno was messed up or that thing has a 20g wheel

Last edited by Phatron; 01-24-2010 at 11:20 PM.
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Old 01-24-2010, 11:46 PM   #20
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Quote:
Originally Posted by Phatron View Post
You guys are all talking out of your asses about this and you dont understand how things work.
I am inclined to agree.

Quote:
He basically said he watered it down as much as he could but couldn't go under 14.78 psi because of the ewg.
Quote:
Tuned by Jorge of P&L Motorsports
Weather corrected 338awhp & 346awtq @ 14.78 psi (ewg pressure)
It's totally reasonable for a wastegate spring to stop you from going under some level of boost - wastegate springs just do that. It sounds to me like he was trying to tell you that he couldn't taper to less than 14.78. Your peak boost is certainly higher than that.

338whp on a VF39 on straight pump is incredible. That's all I have to say about that.
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Old 01-25-2010, 02:13 AM   #21
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+1 In fact even though the pic of the dyno sheet is blurry as hell you can see that midrange boost was indeed higher. There is no physical way for a VF39 346wtq on less than 15 psi on pump gas. If boost was at least a couple psi higher then it makes sense. The peak power is completely believable to me. I've done over 330whp on 91 octane pump gas on an EWG stock turbo STI. That was admittedly a stronger than average car as I'm sure is also the case with the OP's car.
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Old 01-25-2010, 02:27 AM   #22
Phatron
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pretty sure the peak boost number on the graph is 16.94.
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Old 01-25-2010, 04:51 AM   #23
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phatron is correct, and it tapers 14.9psi @ redline. still lower than expected boost for the numbers but thats more like it...
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Old 01-25-2010, 03:47 PM   #24
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Quote:
Originally Posted by wrxtremeWGN View Post
phatron is correct, and it tapers 14.9psi @ redline. still lower than expected boost for the numbers but thats more like it...
Yes, I noticed that as well, but was told it was a spike.
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Old 01-25-2010, 04:03 PM   #25
Phatron
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Default Re: My "rogue" vf39 protune results

How can u look at a line that's striaght at 17psi for 2000 rpm and call it a spike?
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