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Old 10-01-2012, 06:23 PM   #1
Squidz
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Member#: 142608
Join Date: Mar 2007
Chapter/Region: TXIC
Location: Cute fuzzy cuddly kitten hell.
Vehicle:
2003 Sonic Yellow
Marginally well behaved.

Default Dyno Tune: Cobb Plano + 03 WRX + NEW Forced Performance HTA71 makes 426 WHP/417 WTQ

Event: dyno pull
Location: Cobb Tuning Plano, Tx.
Ambient Temp: 95 degrees
Elevation: Unknown
Weather: Sunnny & Humid

Car: 2003 Sonic Yellow WRX
Tuner: Calvin Dotson - Cobb Tuning
Dyno Info: Mustang
Transmission: 5spd ppg gearset
Gear: 3rd
Peak HP at RPM: 426 HP @ 6000 (uncorrected)
Peak Torque at RPM: 417 @ 4000 (uncorrected)
Baseline hp/tq for a stock on same dyno:
Target Boost: 23 psi
Target AFR: 11.7
Fuel: E85

Engine/Power Modifications: Watt's Shop Built 2.5L, CP Pistons (9.2:1 CR), Pauter Rods, 2.0L Heads, EQ Tuning CNC Chambers, 2006 STi Camshafts, BC valvesprings, Forced Performance HTA71 with advanced flow port, Internal Wastegate, FP 84mm turbo inlet, ETS Top-Mount Intercooler, KS Tech Intake, Invidia Catless DP, GT Spec UEL Header, ID 1000 injectors, DW 300lph in-tank.

Driveline Modifications: PPG 5-Speed, OBX Front Diff, Kartboy shifter and bushings, Group N Engine/Trans Mounts, Positive Shift Kit, Diff lock bolts.

Suspension Modifications: BC Coilovers with custom valving and spring rates, Cobb Sway Bars, TIC Enthusiast Control arm bushings, Whiteline Positive Steering Response Kit, Vorshlag Camber Plates, STi Control arms and lower rear links, Front and Rear strut mounts, under car cross-bracing.

Other Modifications: STi Steering Rack.

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Old 10-01-2012, 07:28 PM   #2
wrxsubiemod
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Join Date: Nov 2007
Chapter/Region: SCIC
Location: name where you like it
Vehicle:
E85 bug-i sti swap
Phatron tuned

Default

How did this turbo respond? Well, in your opinion and the tuners? Its looking good so far

Last edited by wrxsubiemod; 10-01-2012 at 07:34 PM.
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Old 10-01-2012, 08:53 PM   #3
Squidz
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Location: Cute fuzzy cuddly kitten hell.
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2003 Sonic Yellow
Marginally well behaved.

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Both me and my tuner were both very impressed with the response of this turbo. We actually ran out of injector...at 26-27 psi, this turbo should make 470-490 WHP.

It actually spoools very fast for the power that it makes.
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Old 10-02-2012, 01:53 PM   #4
JoeTX
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2007 STi 302/350
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Quote:
Originally Posted by Squidz View Post
It actually spoools very fast for the power that it makes.
I'd say it spools damn fast for the what its making. Good job!
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Old 10-01-2012, 08:58 PM   #5
Zee Biker
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2005 Saab 92x
Beaten Silver

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Hardwire and FPR with more base pressure?
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Old 10-02-2012, 02:57 PM   #6
Squidz
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2003 Sonic Yellow
Marginally well behaved.

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Quote:
Originally Posted by Zee Biker View Post
Hardwire and FPR with more base pressure?
Probably...down the road. Didn't really want to have to put aftermarket fuel rails on it...looks really clean this way. I'm really happy with it right now...and as an autocross car, it makes more than enough power.

Now i just have to re-learn how to drive it with 100 more WHP.
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Old 10-01-2012, 09:18 PM   #7
wrxsubiemod
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Location: name where you like it
Vehicle:
E85 bug-i sti swap
Phatron tuned

Default

Quote:
Originally Posted by Squidz
Both me and my tuner were both very impressed with the response of this turbo. We actually ran out of injector...at 26-27 psi, this turbo should make 470-490 WHP.

It actually spoools very fast for the power that it makes.
Thank you
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Old 10-01-2012, 11:36 PM   #8
ArSoN9
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2004 STi-

Default

very impressive torque curve with internal wastegate

id like to see some engine bay shots of ur setup!
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Old 10-02-2012, 10:40 PM   #9
sonic_wrx189
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Location: Texas
Vehicle:
2003 subaru wrx
sonic yellow

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How is running higher comp pistons? I'm in the process of building a 2.1 stroker and am advised to stay away from higher compression because it's mote knock prone.
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Old 10-02-2012, 10:54 PM   #10
Squidz
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2003 Sonic Yellow
Marginally well behaved.

Default

Quote:
Originally Posted by sonic_wrx189 View Post
How is running higher comp pistons? I'm in the process of building a 2.1 stroker and am advised to stay away from higher compression because it's mote knock prone.
Havn't had any issues. The off-boost response is excellent and the engine takes boost like a champ. Tuner did not have any knock issues when tuning the car. he actually wished we had had a bigger injector or more fuel pressure to turn the boost up.
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Old 10-03-2012, 02:11 AM   #11
Concillian
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Midnight Black

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Quote:
Originally Posted by sonic_wrx189 View Post
How is running higher comp pistons? I'm in the process of building a 2.1 stroker and am advised to stay away from higher compression because it's mote knock prone.
E85 has tons of margin in it at stock CR. You sure will see these issues with a 0.5-1 point CR bump on pump gas, but on E85? Shouldn't see knock with such a small bump in compression.
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Old 10-03-2012, 08:36 AM   #12
CatfaceType-R
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Default

Pretty interesting, shawn. How does she spool on the street?

No avcs, right?

Carmi (new sn)

Last edited by CatfaceType-R; 10-03-2012 at 08:48 AM.
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Old 10-03-2012, 02:59 PM   #13
tja1618
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WRB

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Pretty excited to see this seeing as I have a 71HTA on order my self. Although I'm putting mine on a stock 2.0L in a 2003 WRX. I'll be running pump gas as well, so I'm not expecting these kind of numbers. Either way that's pretty impressive.

Have you seen this turbo on a 2.0L? I wonder how much different it will spool...I'm getting my stock manifold ported with a new crosspipe and EWG.
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Old 10-04-2012, 07:34 AM   #14
Squidz
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Join Date: Mar 2007
Chapter/Region: TXIC
Location: Cute fuzzy cuddly kitten hell.
Vehicle:
2003 Sonic Yellow
Marginally well behaved.

Default

Quote:
Originally Posted by CatfaceType-R View Post
Pretty interesting, shawn. How does she spool on the street?

No avcs, right?

Carmi (new sn)
It spools great...only thing i wish is that it was a little more linear...but for the power it's making, it's very impressive on the spool side of things. Can't believe that this thing is capable of easily 50 WHP more. Turbo was actually designed to run 26-27 psi. The engine increased off-boost response significantly, and the turbo is making a bar of boost by 3500...so the car feels plenty quick down low.

No, no AVCS, which i'm regretting just a little bit with this build. I think the power would have come on a lot smoother and a bit sooner with it.

Quote:
Originally Posted by tja1618 View Post
Pretty excited to see this seeing as I have a 71HTA on order my self. Although I'm putting mine on a stock 2.0L in a 2003 WRX. I'll be running pump gas as well, so I'm not expecting these kind of numbers. Either way that's pretty impressive.

Have you seen this turbo on a 2.0L? I wonder how much different it will spool...I'm getting my stock manifold ported with a new crosspipe and EWG.
Havn't seen this turbo on anything. Mine is the first Suby to have one.

I would personally think this turbo really needs E85 to perform the way it was designed. As stated above, it was originally developed for use in higher boost applications.

Last edited by Squidz; 10-04-2012 at 10:12 AM.
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Old 10-04-2012, 09:13 AM   #15
JGLew82
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Impressive! Nice job man. Wouldn't mind checkin it out sometime.
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Old 10-04-2012, 09:20 AM   #16
rexworx
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MY05 GDA,MY04FXT6spd
2.5ltr,PPG,Front LSD,4.44

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Nice too see some results. Thing seems to be a beast. Also has nice spool.
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