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View Poll Results: Do you like your ATP 3071R turbo
Yes! I love it, spools fast and makes good power 7 43.75%
yes, I do wish it had more top end though. spools great 2 12.50%
No! you will want more power 7 43.75%
Voters: 16. You may not vote on this poll

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Old 06-01-2009, 11:59 AM   #1
Stames_wiltz
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Default Calling all ATP 3071R owners...

I want to know;

spool
power/torq made
WRX or STi and model year
Dyno's if available
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Old 06-01-2009, 01:50 PM   #2
ownnij
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the thing is that atp 3071r is not worth the money to power ratio. you could find the same spool and power with a cheaper turbo, possibly a 20g? probably the cheapest you could get a atp turbo is for around... 1699.99 shipped? or so a 20g would cost you like what 1199.99? i dont know if you were going to get a 30r stock replacement i would get a dom3 or a 3076r at least on a 2.5l
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Old 06-01-2009, 02:06 PM   #3
godforbid67
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Yeah the spool difference, I feel, would not be worht it for the top end lost.
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Old 06-01-2009, 02:12 PM   #4
kellygnsd
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Quote:
Originally Posted by Stames_wiltz View Post
I want to know;

spool
power/torq made
WRX or STi and model year
Dyno's if available
I thought the Dom 3.0R was the best turbo ever. What's making you think about something smaller?
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Old 06-01-2009, 03:03 PM   #5
klattery
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The upper-end feels a lot like an 8cm TD06H 20G. On my 04 STi the ATP 3071 flows 318 g/s, about 42lb/min. My VF39 flowed 265 g/s. So a 20% improvement in flow. On Airboy spreadsheet I make about 310whp in 3rd and 320whp in 4th with 93 octane. That power is very consistent from 5000 to 7000 rpm - no drop at all.

Regarding boost, the positive apsect is that transient response is exceptional. Between shift boost recovery is phenomenal - it keeps fully spooled. On-off throttle is also exceptional - keep it above 3500 RPM during a long turn, hit the pedal and boost is there.

The initial spool up is nothing great, though it may be ever so slightly better than an 8cm TD06H-20G. So if youre on a tight autox course, and come out of a corner at 2500 RPM in 2nd, you will have to wait for power. On a tight autox course, Id take the VF39 or TD05H 18G any day. But on a high speed autox , circuit, track, etc, the ATP3071 delivers response like the VF39 (above 3500) with much nicer top-end.

Power of ATP3071 is much less than a Dom 3 (or ATP3076). Transient response is noticeably better, and initial spool-up is slightly better. I'll probably post some of my details in another thread.
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Old 06-01-2009, 03:45 PM   #6
klattery
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The chart below shows the initial spoolup in boost for my ATP 3071. I can brag that in 4th gear I hit 23psi at 3600, but in 2nd gear at 3600 I only hit 7 or 8 psi. Certainly most folks won't say that the turbo is laggy. But compared witha stage 2 VF39 it's about 500 rpm difference in initial spool-up. Transient response I can't complain about.

This is on a Spearco TMIC. Chart shows 4th, 3rd, and 2nd gear spoolup from left to right.

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Old 06-01-2009, 04:10 PM   #7
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it'd be a better comparison if you started at the same RPMs......
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Old 06-01-2009, 04:23 PM   #8
Stames_wiltz
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Quote:
Originally Posted by kellygnsd View Post
I thought the Dom 3.0R was the best turbo ever. What's making you think about something smaller?
The Dom 3 is a good turbo, but I never said it was the best ever. Sometimes though change is good. I am debating between two turbo's and the edge is going to the HTA Green right now. I realize that these two turbos that I am comparing are like apples and watermelons. I am just trying to decide if I want a "race from light to light" or "freeway queen"
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Old 06-01-2009, 04:29 PM   #9
klattery
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^^^^ LOL I Tried FujiK! ^^^
Boost chart above shows all 3 gears at 100% throttle opening. Started to hit throttle around 2k RPM for all 3 gears, but in 2nd gear car was already at 3k RPM by the time I was at 100% throttle. Next time I log I'll start 2nd gear around 1500, 3rd gear around 2000 and 4th gear around 2300RPM. Then I should be at 100% throttle around 2500RPM.

All 3 runs above were within 10 minutes on same road, and 4th gear corresponds with dyno chart below. Airboy dyno chart:
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Old 06-02-2009, 12:12 AM   #10
FuJi K
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Quote:
Originally Posted by klattery View Post
^^^^ LOL I Tried FujiK! ^^^
Boost chart above shows all 3 gears at 100% throttle opening. Started to hit throttle around 2k RPM for all 3 gears, but in 2nd gear car was already at 3k RPM by the time I was at 100% throttle. Next time I log I'll start 2nd gear around 1500, 3rd gear around 2000 and 4th gear around 2300RPM. Then I should be at 100% throttle around 2500RPM.

All 3 runs above were within 10 minutes on same road, and 4th gear corresponds with dyno chart below. Airboy dyno chart:
hit me up, lets go do a few pulls to be consistant.
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Old 06-02-2009, 02:22 AM   #11
Fierysun
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Year: 2005
Engine Management: Cobb AP v2
Turbo: ATP 3071R IWG
Intercooler: Spearco TMIC
Injectors: PE850cc
Intake/Inlet: Cobb cold air with box / APS 3" hard line inlet
Headers: GTspec Gen 3 EL header (Copper Thermo-Tec wrap)
Uppipe: GTspec 3 bolt (Copper Thermo-Tec wrap)
Downpipe: Cobb Catted (Copper Thermo-Tec wrap)
CBE: Cobb
Other Power Mods: 91 Octane California, Walbro fuel pump, NGK one step colder, Prodrive EBCS, Crawford A/O separator, TGV deletes




For around town driving, even earlier spool would work better for me. If I'm going WOT, I can use some more top end. The perfect turbo would be a twin-scroll stock location ATP 3076R. Which ATP is working on.

Last edited by Fierysun; 06-02-2009 at 02:27 AM.
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Old 06-02-2009, 10:50 AM   #12
chongl
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And when is this twin scroll due to be out?
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Old 06-02-2009, 11:00 AM   #13
r8r4life
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Quote:
Originally Posted by kellygnsd View Post
I thought the Dom 3.0R was the best turbo ever. What's making you think about something smaller?
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Old 06-02-2009, 12:26 PM   #14
kellygnsd
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Quote:
Originally Posted by r8r4life View Post
Just before his car broke he was the biggest Dom 3.0R fanboi on earf. The only reason I ask is by looking at his choices they aren't to far from the DOM 3 he has already.
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Old 06-02-2009, 12:56 PM   #15
r8r4life
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Quote:
Originally Posted by kellygnsd View Post
Just before his car broke he was the biggest Dom 3.0R fanboi on earf. The only reason I ask is by looking at his choices they aren't to far from the DOM 3 he has already.
That is some funny ****.I know him locally and always like to give him **** about that piece of crap DomIII.He found out the hard way that it isn't cracked up to be what everyone thought.Still couldn't make 400 on 104 and meth so he is broken hearted right now.
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Old 06-02-2009, 01:56 PM   #16
Fierysun
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Quote:
Originally Posted by chongl View Post
And when is this twin scroll due to be out?
They didn't give a hard date. They said it's in development. They did say, it'll use the JDM twin-scroll flange and it's stock location.
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Old 06-02-2009, 06:27 PM   #17
LittleBlueGT
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Quote:
Originally Posted by Fierysun View Post
The perfect turbo would be a twin-scroll stock location ATP 3076R. Which ATP is working on.

Really? Any more details?
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Old 06-02-2009, 08:59 PM   #18
Stames_wiltz
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Quote:
Originally Posted by r8r4life View Post
That is some funny ****.I know him locally and always like to give him **** about that piece of crap DomIII.He found out the hard way that it isn't cracked up to be what everyone thought.Still couldn't make 400 on 104 and meth so he is broken hearted right now.
The real funny thing is my weak sauce bolt on turbo with a TMIC made more power than your Rotated 3076R r8r4life. Even though I didn't crack the 400 mark, you didn't crack 320

I am not broken hearted, just broken motor'd
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Old 06-04-2009, 08:35 PM   #19
Fierysun
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ATP just sent me an email, saying their stock location twin-scroll turbo is schedule for released by the end of this year.
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Old 06-04-2009, 09:30 PM   #20
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I can't lie, a very well setup vf39 can put up these numbers pretty easily on pump+meth or E85. If you don't belive me search, yes it puts more strain on the motor and your target boost has to be high to hold a good amount of boost till redline and you need good octante.

*not to start a fire here, flame suit on*
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Old 06-04-2009, 10:10 PM   #21
Fierysun
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Like you said, pump+meth or E85, with both setup at high boost and you'll going to need to run EWG. Or just run the 3071R IWG on 91 pump. Seems to me, the 3071R or equivalant is cheaper and more reliable power in the long run.

Also on meth or E85, the ATP turbo will be over 400whp. So the VF39 is not putting down the same power under the same conditions.
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Old 06-05-2009, 01:19 AM   #22
NotMyGT
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Interesting, I was considering the ATP3071R until reading all this. I may just wait until I see numbers for the TS 3076R.
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Old 06-05-2009, 01:20 AM   #23
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Quote:
Originally Posted by FuJi K View Post
it'd be a better comparison if you started at the same RPMs......

It really doesn't matter how early you start when the initial rpm is that low Fuji.
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Old 06-05-2009, 01:25 AM   #24
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Quote:
Originally Posted by soon2bblackongold View Post
I can't lie, a very well setup vf39 can put up these numbers pretty easily on pump+meth or E85. If you don't belive me search, yes it puts more strain on the motor and your target boost has to be high to hold a good amount of boost till redline and you need good octante.

*not to start a fire here, flame suit on*
AMEN Carmi. I've seen at least 5 vf cars with just as much power as most in this thread
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Old 06-05-2009, 02:06 AM   #25
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Quote:
Originally Posted by STi Mikey View Post
AMEN Carmi. I've seen at least 5 vf cars with just as much power as most in this thread
You make it sound like the VF makes the same power under the same conditions. Which is completely false. Using the same boost, fuel types, and so on, the ATP and comparible turbos makes considerably more power.

I'm not trying to take anything alway from those VF setups, but it's not a apples to apples comparison.

A VF turbo running meth, race gas, E85, higher boost, EWG, exhaust dump, and what not. Is not going to be as daily drivable friendly as a larger turbo running just pump with IWG at a lower boost settings.
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