Welcome to the North American Subaru Impreza Owners Club Saturday March 30, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Proven Power Bragging

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 04-21-2008, 05:17 PM   #1
socalLGT
Scooby Specialist
 
Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

Default 05 STi ATP3071 Tuned by Tim Bailey

Tim Bailey from Surgeline Tuning was in town this past weekend to tune a few cars. Since there haven't been too many ATP3071's tuned out there, I figured I'd share the results. The car belongs to 05cgm and he is a serious track junkie so the maps were intentionally left ultra conservative. They are road racing maps, not dyno glory maps. Tim and I were both pretty impressed with the ATP3071 turbo. It spools like a 20g but makes about 15-20 more whp/wtq.
Here is what I recall of the mods on the car:

05 STi stock motor
ATP3071R stock location bolt-on turbo IWG
APS turbo inlet pipe
TGV deletes
PE850 injectors
Cusco headers
Catted turboback
Ebay FMIC
Perrin big MAF
Cobb AP2

91 octane street map and 100 octane road racing map:

* Registered users of the site do not see these ads.

Last edited by socalLGT; 04-22-2008 at 02:50 AM.
socalLGT is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 04-21-2008, 05:33 PM   #2
wrxhard
Scooby Specialist
 
Member#: 108091
Join Date: Feb 2006
Location: Fargo, ND
Vehicle:
2002 WRX

Default

Not mind blowing results, but good results none the less!!!
wrxhard is offline   Reply With Quote
Old 04-21-2008, 06:12 PM   #3
Illusive
Scooby Specialist
 
Member#: 90436
Join Date: Jul 2005
Chapter/Region: SCIC
Location: LA, CA
Vehicle:
2005 STI
Obsidian black pearl

Default

looks good to me. Power isn't falling off by redline. something that always sticks out like a sore thumb to me on these engines.
Illusive is offline   Reply With Quote
Old 04-21-2008, 06:54 PM   #4
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

Nice results. This is about the same power I saw on this turbo on a car I recently tuned.

This car has the ATP GT3071 bolt-on turbo, Catless helix downpipe with a very quiet catback, AEM CAI, 3" inlet, XO TMIC, Deatschwerks 740cc injectors, MBC, Cobb AP with EQ Tuning custom tune.

Here is the chart:


My road dyno software reads approximately 15% lower than a Dynojet, so the numbers are very close after conversion. The tune was done on California 91 Octane at about 20.5psi peak, tapering to about 19.5psi by redline.

My personal take on this turbo is that it makes about the dame power as a 20G on 91 Octane but it provides significantly better spool and overall transient response. Overall the car feels very similar to the VF39 in terms of response above 4k RPM, but makes about 30whp more and pulls nicely all the way to redline. This is a great upgrade for auto-x or anyone looking to retain as much response as possible but still get a significant gain up top.

Thanks
-- Ed
Equilibrium Tuning is offline   Reply With Quote
Old 04-21-2008, 07:07 PM   #5
socalLGT
Scooby Specialist
 
Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

Default

Quote:
Originally Posted by Vaus View Post
My personal take on this turbo is that it makes about the dame power as a 20G on 91 Octane but it provides significantly better spool and overall transient response. Overall the car feels very similar to the VF39 in terms of response above 4k RPM, but makes about 30whp more and pulls nicely all the way to redline. This is a great upgrade for auto-x or anyone looking to retain as much response as possible but still get a significant gain up top.

Thanks
-- Ed
Good response and a broad powerband is exactly what the customer asked for when he came to us for a turbo recommendation and that's what he got

The ATP bolt-on Garrett turbos aren't cheap but they do what they are supposed to do and represent a good option for those willing to pony up a couple more bucks over the more common MHI based bolt-on turbos.
socalLGT is offline   Reply With Quote
Old 04-21-2008, 07:13 PM   #6
Clark Turner
Former Vendor
 
Member#: 178047
Join Date: Apr 2008
Chapter/Region: SWIC
Location: AZ
Vehicle:
02 WRX STI Spec C
Black

Default

Thats about right. I have tuned a few. Not impressed. I get 20G power and spool. It might have better response which is nice but its not worth the extra cost in my opinion. The 3076 is alot better. It comes a tad later than the 20G but makes alot more top end.

Good tune!

Clark
Clark Turner is offline   Reply With Quote
Old 04-21-2008, 07:25 PM   #7
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

Quote:
Originally Posted by Clark Turner View Post
Thats about right. I have tuned a few. Not impressed. I get 20G power and spool. It might have better response which is nice but its not worth the extra cost in my opinion. The 3076 is alot better. It comes a tad later than the 20G but makes alot more top end.

Good tune!

Clark
I agree that the boost threshold and overall powerband looks very similar to a 20G but the transient throttle response is significantly better with this turbo, almost to the point of making it feel like a VF39. Weather or not its worth the extra cost will depend heavily on what the customer is looking for IMO.

Thanks
-- Ed
Equilibrium Tuning is offline   Reply With Quote
Old 04-21-2008, 07:28 PM   #8
4ST-AIR
Scooby Specialist
 
Member#: 148681
Join Date: May 2007
Chapter/Region: MWSOC
Location: WI
Vehicle:
TBD Looking for STI
Back in the Game!

Default

Thats nice power gives me a lot of hope for my P&L GT3076R .82 thats getting tuned this week. very nice for such a limited amount of mods AND ON IWG!!!! Nice!!!
4ST-AIR is offline   Reply With Quote
Old 04-21-2008, 07:32 PM   #9
Jhovany
Scooby Specialist
 
Member#: 137317
Join Date: Jan 2007
Chapter/Region: SWIC
Location: Ruidoso, New Mexico
Vehicle:
2006 STI
Rally Blue

Default

Quote:
Originally Posted by Clark Turner View Post
Thats about right. I have tuned a few. Not impressed. I get 20G power and spool. It might have better response which is nice but its not worth the extra cost in my opinion. The 3076 is alot better. It comes a tad later than the 20G but makes alot more top end.

Good tune!

Clark
Nice...seems like the 3071 is not so bad after all!! How do you think the ATP3076 compares to the APS SR56 turbo? Spool? Power? Reason being is that I was thinking of "upgrading" to the ATP3076 turbo but I am wondering if it is worth the hassle?
Jhovany is offline   Reply With Quote
Old 04-21-2008, 08:26 PM   #10
verc
Scooby Specialist
 
Member#: 41754
Join Date: Aug 2003
Location: san ramon
Vehicle:
03 wrx
gt35r, 2.5L, meth

Default

Quote:
Originally Posted by socalLGT View Post
Here is what I recall of the mods on the car:

05 STi stock motor
ATP3071R stock location bolt-on turbo IWG
APS turbo inlet pipe
TGV deletes
PE850 injectors
Cusco headers
Catted turboback
Ebay FMIC


Nice, everyone's rockin' the ebay fmic nowadays
verc is offline   Reply With Quote
Old 04-21-2008, 08:48 PM   #11
Clark Turner
Former Vendor
 
Member#: 178047
Join Date: Apr 2008
Chapter/Region: SWIC
Location: AZ
Vehicle:
02 WRX STI Spec C
Black

Default

Quote:
Originally Posted by verc View Post
Nice, everyone's rockin' the ebay fmic nowadays

Yeah.. It would made 20whp more with a better FMIC

As for the SR56 compared to the ATP 3076? To close to call. Not going to be worth the cost to upgrade.

Clark
Clark Turner is offline   Reply With Quote
Old 04-21-2008, 08:56 PM   #12
4ST-AIR
Scooby Specialist
 
Member#: 148681
Join Date: May 2007
Chapter/Region: MWSOC
Location: WI
Vehicle:
TBD Looking for STI
Back in the Game!

Default

Quote:
Originally Posted by verc View Post
Nice, everyone's rockin' the ebay fmic nowadays
Not really.

Willing to bet not half as good as a Spearco TMIC JMO we all have one

Last edited by 4ST-AIR; 04-21-2008 at 09:01 PM.
4ST-AIR is offline   Reply With Quote
Old 04-21-2008, 09:02 PM   #13
young j
Scooby Specialist
 
Member#: 144478
Join Date: Mar 2007
Chapter/Region: TXIC
Location: houston
Vehicle:
2005 sti
wr blue

Default

dissapointed , from what i read on this turbo i thought it would make
at least 400hp on pump gas.
young j is offline   Reply With Quote
Old 04-21-2008, 09:11 PM   #14
linky
Scooby Newbie
 
Member#: 118000
Join Date: Jun 2006
Chapter/Region: Tri-State
Location: Long Island, Ny
Vehicle:
04 STi
Java Black Pearl

Default

Quote:
Originally Posted by young j View Post
dissapointed , from what i read on this turbo i thought it would make
at least 400hp on pump gas.
without meth??
linky is offline   Reply With Quote
Old 04-21-2008, 09:14 PM   #15
4ST-AIR
Scooby Specialist
 
Member#: 148681
Join Date: May 2007
Chapter/Region: MWSOC
Location: WI
Vehicle:
TBD Looking for STI
Back in the Game!

Default

Quote:
Originally Posted by linky View Post
without meth??
why does everyone want to be so quick to toss out the METH on everything. 3071 not so much on pump;p 3076 .82 should clear 400/400 on a Dynojet no problems with all supporting mods and a built engine.
4ST-AIR is offline   Reply With Quote
Old 04-21-2008, 09:30 PM   #16
linky
Scooby Newbie
 
Member#: 118000
Join Date: Jun 2006
Chapter/Region: Tri-State
Location: Long Island, Ny
Vehicle:
04 STi
Java Black Pearl

Default

......

Last edited by linky; 04-21-2008 at 09:51 PM.
linky is offline   Reply With Quote
Old 04-21-2008, 09:37 PM   #17
Clark Turner
Former Vendor
 
Member#: 178047
Join Date: Apr 2008
Chapter/Region: SWIC
Location: AZ
Vehicle:
02 WRX STI Spec C
Black

Default

THe Real GT35R rotated setup with GT housings will make 400whp on pump 93 no problem. Its been dont time and time again. No bolt on is going to do that including the 71 and 76s. ITs a compromise to have a small turbine and inlet. Even so they have a place in the market. This car made great power for what it has and the tune looks solid!

Clark
Clark Turner is offline   Reply With Quote
Old 04-22-2008, 12:43 AM   #18
Dyno Flash
Vendor
 
Member#: 73568
Join Date: Oct 2004
Location: Stamford, CT
Vehicle:
'05 STI 11.1 @ 127
03 Evo 8 9.5 @ 149

Default

I like the ATP units a lot.

The 3076 is a really great unit but there is some skill to get the inlet hose sorted right. At the end of the day the rotated mount Gt35 is the best option, however, for those seeking a factory location I feel the ATP 3076 is one of the best options. On a '08 WRX we did recently on alchy and pump it was making over 400 TQ and broke the trans at a very moderate boost level.

I would suggest the 3071 for someone who is doing auto cross of who hates turbo lag.

We like these units a lot and highly recomend them.

Al
Dyno Flash is offline   Reply With Quote
Old 04-22-2008, 01:47 AM   #19
socalLGT
Scooby Specialist
 
Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

Default

I personally prefer the ATP3076 as well but I am more tolerant of lag. The customer who has the ATP3071 is a circuit racer and asked for a turbo with close to stock responsiveness, so we recommended the ATP3071.

As for 400whp on pump gas, I believe that ATP has some kind of chart showing 400whp allegedly on pump gas and frankly anyone who has any familiarity with Subaru motors and Garrett turbos will quickly realizes that 400whp on a pump gas 3071 is never going to happen. I think the results are perfectly within the range of reasonable expectation and that the balance of spool, boost recovery and overall power are excellent.
socalLGT is offline   Reply With Quote
Old 04-22-2008, 02:20 AM   #20
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

Quote:
Originally Posted by socalLGT View Post
I think the results are perfectly within the range of reasonable expectation and that the balance of spool, boost recovery and overall power are excellent.
Very well put.
Equilibrium Tuning is offline   Reply With Quote
Old 04-22-2008, 07:48 PM   #21
klattery
Scooby Newbie
 
Member#: 48503
Join Date: Nov 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
2004 STi ATP3071
Silver

Default

This ATP3071 doesn't look like it spools much quicker (or at all) compared with the ATP3076 you tuned (same dyno) a week ago. I know the cars are different, as this one had Cusco headers and a catted turboback. Any thoughts on just how much difference there is in spool between the 3071 and 3076? Because the 3076 put down some serious numbers, and it makes 300 lb-ft @3700:

klattery is offline   Reply With Quote
Old 04-22-2008, 09:06 PM   #22
godfather2112
Papi Chulo
Moderator
 
Member#: 53794
Join Date: Jan 2004
Chapter/Region: RMIC
Location: Boner kill city
Vehicle:
... 2017 BMW M2
2017 F-150

Default

Compared to the DomIII i would have gone a diff route. Turbo seems to spool late. DOM III FTW
godfather2112 is online now   Reply With Quote
Old 04-22-2008, 09:53 PM   #23
socalLGT
Scooby Specialist
 
Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

Default

Quote:
Originally Posted by klattery View Post
This ATP3071 doesn't look like it spools much quicker (or at all) compared with the ATP3076 you tuned (same dyno) a week ago. I know the cars are different, as this one had Cusco headers and a catted turboback. Any thoughts on just how much difference there is in spool between the 3071 and 3076? Because the 3076 put down some serious numbers, and it makes 300 lb-ft @3700:

Comparing the 3076 I tuned versus the 3071 Tim tuned is an apples to oranges comparison. The car I tuned with the 3076 was an 07 STi. The car in this thread with the 3071 was an 05 STi. With the longer gears there is a lot more load on the car so the turbo spools quicker. Both cars were tuned and dynoed in 4th gear, but since 4th gear on the 07 is so much longer it equalized the spool up you see in the graphs.

I did a couple runs with the 3076 equipped 07 STi in 3rd gear and it spooled about 500 rpm slower and frankly 3rd gear in the 07 tranny is only a touch shorter than 4th gear in the 04-06 trannies. Hence why I say the 3071 it spools about 400 rpm faster than the 3076.

On the street the difference in spool up is pretty obvious between the two turbos.
socalLGT is offline   Reply With Quote
Old 04-22-2008, 11:29 PM   #24
Frank A
Scooby Specialist
 
Member#: 49979
Join Date: Dec 2003
Chapter/Region: MAIC
Location: MD, US
Vehicle:
11 need a 2nd STI
08 black TA STI

Default

Quote:
Originally Posted by socalLGT View Post
Comparing the 3076 I tuned versus the 3071 Tim tuned is an apples to oranges comparison.

On the street the difference in spool up is pretty obvious between the two turbos.
Very interesting discussion. How much would you say a header like the Perrin EL affects the spool-up of the 3076? Are the two a good match for each other? How about Spearco TMIC vs an ebay FMIC? The 3076 tune was with a TMIC or FMIC? I think the ATP website tune was supposedly with a TMIC.

I'm seriously looking at the ATP3076 and TMIC for an '08 STI. My target is 400 whp w/o meth on 93 pump gas, and 300 by 4k rpm. If I can't do this, I'll look at something like a twinscroll setup. In either case, I'd be willing to swap out pistons to tolerate a bit more boost.

Frank
Frank A is offline   Reply With Quote
Old 04-22-2008, 11:35 PM   #25
socalLGT
Scooby Specialist
 
Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

Default

Quote:
Originally Posted by Frank A View Post
Very interesting discussion. How much would you say a header like the Perrin EL affects the spool-up of the 3076? Are the two a good match for each other? How about Spearco TMIC vs an ebay FMIC? The 3076 tune was with a TMIC or FMIC? I think the ATP website tune was supposedly with a TMIC.

I'm seriously looking at the ATP3076 and TMIC for an '08 STI. My target is 400 whp w/o meth on 93 pump gas, and 300 by 4k rpm. If I can't do this, I'll look at something like a twinscroll setup. In either case, I'd be willing to swap out pistons to tolerate a bit more boost.

Frank
400whp should be possible with an ATP3076 on 93 octane, but it will take a good tune for sure. That will be pushing any TMIC pretty hard but that is not to say it won't work.

The 3076 I tuned had an APS FMIC, and my personal preference with turbos in this size class is for an FMIC, but I do live and tune in a warmer climate. A good TMIC like the Spearco could work for you.

Stay tuned though, we'll be getting the first ATP3582R (bolt-on GT35R) sometime this week and it should be installed and tuned shortly thereafter on our shop 08 STi.
socalLGT is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
05 STi with Dom3 by Tim at Surgeline thepigsti Proven Power Bragging 20 06-03-2009 09:03 PM
18g 2.0liter on e85 tuned by Tim Bailey (Surgeline Tuning) Nutz Proven Power Bragging 30 02-11-2009 02:45 AM
2007 STi Limited tuned by Tim Bailey JiveMasterT Proven Power Bragging 18 07-24-2007 02:28 AM
06 STI Tuned by Tim Bailey of PDXTUNING 289hp 329 trq jdmmuscle Proven Power Bragging 11 04-07-2007 12:51 PM
Anyone interested in a group tune by Tim Bailey from PDX? BiggSean Southern California Impreza Club Forum -- SCIC 122 01-08-2007 05:06 PM

All times are GMT -4. The time now is 01:41 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.