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Old 10-02-2012, 08:51 AM   #1
amorgan93
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Member#: 267563
Join Date: Dec 2010
Vehicle:
2006 Forester XT
Champagne Gold Opal

Default AP stage 2 (td04) vs stage 3 (vf39), FXT

the td04 turbo in my 04 forester xt 4eat went out not long ago, so I replaced it, went with sti catless uppipe, invidia catless downpipe, 05 sti catback, p&l braided avcs line kit, and flashed stage 2 map on the accessport. Turns out the used td04 I put back on the car is also bad, bearings whine, and blows some blue smoke, yet the car feels quite a bit quicker at stage 2 (the torque is impressive ). I was considering just going stage 3, vf39 instead of staying with td04s, but looking the accessport maps, the stage 2 and stage 3 are estimated at the same hp, with the vf apparently having just a tad more torque (I thought the td04 was the torque monster). I already have an 09 sti tmic, so to go stage 3 all I need is a vf39 and the sti/wrx BPV and recirc hose. Is the vf39 worth switching to with the 2.5l and 4eat? How will 0-60, 1/4th be affected? I'm gonna estimate my car at 0-60 in around 5.5 or 6 at stage 2. Thanks a bunch!

And yes I hope to get it protuned eventually, but for now I'm gonna be stuck with OTS maps. Thanks again
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Last edited by amorgan93; 10-02-2012 at 08:56 AM.
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Old 10-02-2012, 09:00 AM   #2
h00z0r
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PSM

Default

AFAIK your 60ft shouldn't change much at all, the vf39 holds on to boost a bit better north of 5500rpms, the tune is the seller. Do you launch from idle or do you brake boost?
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Old 10-02-2012, 09:28 AM   #3
amorgan93
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I normally just go from idle (or sometimes at around 2200rpm, but I normally don't brake boost, seems really hard on the trans. I also have a long tru-cool 13,000 BTU trans cooler on its way,

Last edited by amorgan93; 10-02-2012 at 09:42 AM.
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Old 10-02-2012, 06:37 PM   #4
h00z0r
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Its awful for the stock torque converter

a GREAT mod for 0-60/60ft/ET would be:

http://www.importperformancetrans.co...4eat-1721.html
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Old 10-02-2012, 07:03 PM   #5
Black94Snake
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12.70 @ 108.4mph

Default

the stage 3 AP tune ran crazy rich on my car (07 WRX) I was not impressed at all. I finally went OS and re-mapped the car with help from several people. My end result was over a 25hp improvement as viewed in Virtual Dyno. There was definitely a large improvement between stage 2 and the VF39 tune though. Even just the OTS maps.
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Old 10-02-2012, 07:32 PM   #6
amorgan93
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Default

Quote:
Originally Posted by h00z0r
Its awful for the stock torque converter

a GREAT mod for 0-60/60ft/ET would be:

http://www.importperformancetrans.co...4eat-1721.html
Is high stall TC going to do anything for me if I don't launch though? I know that if I hard launch I can reach over 3k rpm before take-off on the stock tc. Are they any harder on the trans? I'm not really familiar with auto transmissions. Thanks
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Old 10-02-2012, 07:36 PM   #7
amorgan93
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Quote:
Originally Posted by Black94Snake
the stage 3 AP tune ran crazy rich on my car (07 WRX) I was not impressed at all. I finally went OS and re-mapped the car with help from several people. My end result was over a 25hp improvement as viewed in Virtual Dyno. There was definitely a large improvement between stage 2 and the VF39 tune though. Even just the OTS maps.
And I'm guessing a pro-tune and ebcs would yield even more.. but 25hp for about $800-$900 (vf39, sti tmic, sti bov, sti recirc hose), not including a pro-tune, seems a bit low especially considering its not gonna improve my 0-60 at all. Maybe I should go gt30r... hah yeah right
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Old 10-02-2012, 08:25 PM   #8
Black94Snake
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2007 CGM VF'd WRX
12.70 @ 108.4mph

Default

im pretty sure you read everything I posted completely wrong.

My average HP reading on VD with stage 2 was ~240hp. my stage 3 tune put me up around 295. The 25hp was the difference between stage 3 and stage ME.

But let me ask you this... Why do you need an STi BPV, or recirc hose? they are no different that what you already have! TMIC is maybe $275, and my VF43 was $550! IMHO, having a ~300hp car that still drives like it's completely stock... win-win
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Old 10-03-2012, 01:24 PM   #9
amorgan93
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Quote:
Originally Posted by Black94Snake View Post
im pretty sure you read everything I posted completely wrong.

My average HP reading on VD with stage 2 was ~240hp. my stage 3 tune put me up around 295. The 25hp was the difference between stage 3 and stage ME.

But let me ask you this... Why do you need an STi BPV, or recirc hose? they are no different that what you already have! TMIC is maybe $275, and my VF43 was $550! IMHO, having a ~300hp car that still drives like it's completely stock... win-win
Well, the 04/05 XTs have a totally different design of BPV, the recirc hose comes in on the right hand side while the STI BPV bends down on the left side. The intercooler wont even slide completely on because the recirc hose gets caught between the intercooler and the intake. 295hp sounds more respectable for stage 3, i definitely misread it as you only gaining 25hp total Thanks for the clarification.

I bought my 09 STI TMIC for $50 including the inlet hose, because it had quite a few bent fins, but i'm in the process of straightening them all out, almost done and have it looking it pretty nice. However, it did not come with the BPV. Do you think the VF43 is honestly worth the price compared to a vf39? Even though it seems everyone wants ~$500 for a used VF39 nowadays.

Extra: Would you care to PM me some tips on tuning? I messed around a bit with AccessTuner on my Accessport, watched a few tuning videos, and read an entire PDF guide on tuning subarus, but am too scared to do much to my car, and am still pretty confused. Only if you have some free time and don't care to help out a fellow subie enthusiast haha

Last edited by amorgan93; 10-03-2012 at 01:29 PM.
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Old 10-03-2012, 01:35 PM   #10
Black94Snake
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Join Date: Feb 2011
Chapter/Region: NESIC
Location: RI
Vehicle:
2007 CGM VF'd WRX
12.70 @ 108.4mph

Default

My VF43 was hardly used, so I had no problem paying what I paid. There was NO wastegate crack at all, and turbine side had no external rusting either. I would have sprung for a 48 though, if they were reasonably priced.

I personally don't think I would bother with a used 39. If for no other reason than the age of the unit.
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Old 10-03-2012, 02:05 PM   #11
amorgan93
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Champagne Gold Opal

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Theres a Vf48 for sale right now, $550 shipped with less than 20k miles..
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Old 10-03-2012, 03:10 PM   #12
Black94Snake
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2007 CGM VF'd WRX
12.70 @ 108.4mph

Default

So buy it.
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