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Old 01-19-2015, 08:25 PM   #1
Karyuko
Scooby Newbie
 
Member#: 330719
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Utah
Vehicle:
2004 Impreza WRX STI
Java Black Pearl

Default 04 STI - Stock block - Cavalli Stage 2 turbo

Event: dyno pull
Location: Ziptie Dynowerks
Ambient Temp: 33f
Elevation: 4,226ft
Weather: Cloudy, slightly wet


Car: 2004 STI
Tuner: Ziptie Dynowerks
Dyno Info: Mustang
Transmission: 6spd stock
Gear: 3rd
Peak HP at RPM: 341whp 6800rpm
Peak Torque at RPM: 357wtq 4700rpm
Target Boost: 20psi
Fuel: 91oct


Engine/Power Modifications:
Stock block
Perrin turbo intake hose
Perrin FMIC
Custom Short RAM
Tomei Unequal Length Header
Tomei Up pipe
APS 3.5in Turbo Back Race exhaust
Greddy Turbo Timer
Exedy Stage 1 Clutch
Access Port V2
Injector Dynamics Top Feed 1000cc
Injector Dynamics Fuel rails
TGV deletes
Cavalli Stage 2 turbo
Grimmspeed Manual Boost Controller
Forge BOV
Walbro Fuel Pump 255lph
Phenolic Thermal Spacer
Moroso Air/Oil Separator
Turbo heatshield/blanket
Heatwrap/deflective material

Build thread here: http://forums.nasioc.com/forums/show...4#post39238074

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Old 01-19-2015, 09:42 PM   #2
BigRob74
Scooby Specialist
 
Member#: 305107
Join Date: Dec 2011
Chapter/Region: Tri-State
Location: Long Island, NY
Vehicle:
2016 GT 5.OHH
DIB

Default

nice #'s? what made you pick this turbo?
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Old 01-19-2015, 09:49 PM   #3
VladiWrX
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Member#: 145658
Join Date: Apr 2007
Location: NorCal
Vehicle:
On my 5th scoob
and lovin it

Default

I'm not sure if it's the elevation, or the dyno, or perhaps you're leaking exhaust or boost, but that looks kinda laggy, and it's dropping torque pretty hard up top so it can't be a very high flowing turbo. Maybe I'm missing something.
*edit: then again you're on pump 91 at elevation, so maybe I'm just spoiled by e85 and sea level.

These new turbos are definitely interesting.
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Old 01-19-2015, 11:47 PM   #4
calebw15
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Member#: 358808
Join Date: Jun 2013
Chapter/Region: South East
Location: Raleigh, nc
Vehicle:
2003 Hybrid WRX
White

Default

Definelty does look kind of laggy. Are you sure you don't have exhaust leak? When do you make full boost on the street. How is the transient response of the turbo?
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Old 01-20-2015, 12:32 AM   #5
Karyuko
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Member#: 330719
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Utah
Vehicle:
2004 Impreza WRX STI
Java Black Pearl

Default

Quote:
Originally Posted by BigRob74 View Post
nice #'s? what made you pick this turbo?
Triple ceramic ball bearing and turbosmart wastegate. Rallysport had good results with their stage 3 and I wanted something that would spool better.

Quote:
Originally Posted by calebw15 View Post
Definelty does look kind of laggy. Are you sure you don't have exhaust leak? When do you make full boost on the street. How is the transient response of the turbo?

Quote:
Originally Posted by VladiWrX View Post
I'm not sure if it's the elevation, or the dyno, or perhaps you're leaking exhaust or boost, but that looks kinda laggy, and it's dropping torque pretty hard up top so it can't be a very high flowing turbo. Maybe I'm missing something.
*edit: then again you're on pump 91 at elevation, so maybe I'm just spoiled by e85 and sea level.

These new turbos are definitely interesting.
It does seem kinda laggy in this graph. Im going to try and get some more pulls to compare it too. It doesnt feel this laggy on the street but ill have to play with it more to find out when it makes power. Ill run it by ziptie tomorrow to see what they think. My eco map dyno pull shows a very straight boost line and doesnt spike like this does. The pull that they showed me had 353whp/358wtq. So this may have been corrected. Ill find this out.
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Old 04-26-2015, 02:49 AM   #6
aeromech
Scooby Newbie
 
Member#: 415519
Join Date: Mar 2015
Chapter/Region: SWIC
Location: Surprise, AZ
Vehicle:
2005 WRX STi
Obsidian Black Pearl

Default

Pretty solid numbers for 91 octane. I made 370 hp/375 tq on E85 with the same turbo on a stock motor 2005 STI with all the possible bolt ons. Boost was 20 PSI for my tune. I was tuned for a mix of summer and winter blend E85 though, so my numbers could have been better. My turbo is also pretty laggy compared to other stock location turbos. Doesn't get into full boost until right around 5000 rpm and the torque tapers off just like in this dyno graph. I feel like I should have just gone rotated with a Garret GT3576 but didn't have the money for a built short block. It's fun for the meantime, but I definitely see myself getting bored with this power soon.
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Old 04-30-2015, 01:07 PM   #7
Andrewsox
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Member#: 180297
Join Date: May 2008
Default

Do you hear a dry bearing sound on shutdown?

Last edited by Andrewsox; 04-30-2015 at 01:59 PM.
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Old 04-30-2015, 04:06 PM   #8
Karyuko
Scooby Newbie
 
Member#: 330719
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Utah
Vehicle:
2004 Impreza WRX STI
Java Black Pearl

Default

Quote:
Originally Posted by aeromech View Post
Pretty solid numbers for 91 octane. I made 370 hp/375 tq on E85 with the same turbo on a stock motor 2005 STI with all the possible bolt ons. Boost was 20 PSI for my tune. I was tuned for a mix of summer and winter blend E85 though, so my numbers could have been better. My turbo is also pretty laggy compared to other stock location turbos. Doesn't get into full boost until right around 5000 rpm and the torque tapers off just like in this dyno graph. I feel like I should have just gone rotated with a Garret GT3576 but didn't have the money for a built short block. It's fun for the meantime, but I definitely see myself getting bored with this power soon.
Im pretty happy with the turbo but If was getting full boost at 5k rpm I would probably feel the same way. Not sure if you have done this but Iv heatwrapped everything and use a turbo blanket. My downpipe bell housing is ceramic coated/heat wrapped as well. I also have TGV deletes as well.

I use a perrin FMIC as well, the perrin seems to have smaller diameter tubing then most FMIC. The smaller tubing would help with spool.

When fully warmed up I feel like I hit full boost at 4300-4500 ish. Which is what I expected with a larger turbo.

Quote:
Originally Posted by Andrewsox View Post
Do you hear a dry bearing sound on shutdown?
Iv had no issues so far or weird noises. The only issues im aware of are the first gens of stage3 (fitment issues) and stage1 trim ratio causing to much bottom torque.

Last edited by Karyuko; 04-30-2015 at 04:16 PM.
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