Welcome to the North American Subaru Impreza Owners Club Friday October 31, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
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.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 12-31-2009, 02:54 PM   #1
AkumaMotorsports
Former Vendor
 
Member#: 214570
Join Date: Jun 2009
Chapter/Region: Tri-State
Location: NJ/SLC
Vehicle:
2008

Default AKUMA Tuned/Owned-2008 STI

Event: dyno pull
Location: Akuma Motorsports
Ambient Temp: unk, around 36F
Elevation: sea level
Weather: sunny, cold


Car: 2008 Subaru STI
Tuner: John@AkumaMotorsports
Dyno Info: Mustang AWD 500
Peak HP at RPM: 447whp uncorrected
Peak Torque at RPM: 431wtq uncorrected
Baseline hp/tq for a stock on same dyno: approx210
Target Boost: 24.2
Target AFR: 11.6
Fuel: 93 octane/Methanol-HFS-6
MODS:
ENGINE MANAGEMENT:
Cosworth/Pectel ECU: AKUMA Tuned
5BAR MAP AEM
Bosch Wideband

ENGINE:
Cosworth Shortblock-Forged Pistons/Rods/Crank
Cosworth bearings-Main/Rod
Cosworth Hi-Volume Oil Pump
Cosworth Intake Manifold
Cosworth Head gasket and ARP Headstuds
AKUMA ported TGV Housings
AKUMA 5 AXIS CNC Heads
Supertech Valves/Springs/Titanium retainers and seats
9mm Phenolic spacers
Mishimoto Radiator and Low Temp Thermostat
Killer B Pick up tube
Killer B Hi Volume Oil Pan
AKUMA Oil Cooler and Mocal thermostatically controlled sandwich plate
AKUMA Air/Oil Separator

FORCED INDUCTION / EXHAUST:
Forced Performance 3082 Turbo(GT35R comp/ GT30 turbine)
Tial V Band Turbine housing
-8AN Oil and Coolant lines- Flex Lite
AKUMA Custom FMIC(Spearco Core) and piping....reduced 90deg bends for superior flow and spool
AKUMA Cold air intake
Synapse 50mm Wastegate with Nitride piston
AKUMA Up-pipe and External Dump
APS Split pulse Header
AKUMA Dual Exhaust(quad tips)-prototype

SUSPENSION:
KW variant 3 Clubsport Coilovers-RobiSpec alignment and corner balanced
Cusco Front Camber Plates
Whiteline Steering Rack Bushing
Whiteline Anti lift kit
Whiteline Toe ADj ARMS Front
Cusco Front brace X
Cusco Rear Trailing arms
Cobb front sway bar
Cobb 3 piece rear sway

TRANSMISSION:
Cobb front and rear shifter bushings
Cobb Short shifter
Robispec CarbonFiber Driveshaft

BRAKES
AXIS Ultimate pads-fr/r
Stoptech braided lines
ATE Superblue fluid

EXTERIOR/INTERIOR
Red tail overlays
Prova Steering Wheel-Alcanter:retains stock radio controls and airbag

FUEL and EXTRAS:
DW1000cc Injectors
Aeromotive FPR
Perrin Rails with 6AN Braided lines
Full Blown DUAL Walbro In-tank Hanger(Billet Aluminum) -6 AN lines
AQUAMIST HFS6 AKUMA Spec Methanol Injection kit
HKS EVC 6 and Easy Writer Software


The first plot is a comparison to an STI with a Cobb OTS map, Stg 2. I wanted to put this up for a comparison that people can be familiar with, both on the dyno and actually driving the car.



The second plot is to demonstrate the difference AVCS tuning cam make on the Intake cam. One plot as the cam in a neutral position(131deg) and the second has a deviation of approx. 21deg from centerline. The spool is quite better and the difference in torque and power is astounding. This is actually 3 pulls after the change. My AFR were so lean on the first pull I had to stop the run. the send pull was better, and this is the third.



The tune is not complete. I wanted to get this started to show the progression in the tune with this new motor and ECU. The Pectel unit is the best ECU I have used to date. This unit is phenomenal. As a tuner, I have complete control over the vehicle and calibration, which is key.

I will keep this updated, as I will have her back on the dyno next week to tune the exhaust Cam and play with a bit more boost.

Here are some pics of the car....I know it is a bit dirty. LOL








I have a bunch more build pics. as soon s I get them from the other camera I will upload them.

Thanks for looking, and Happy New Year!

John
* Registered users of the site do not see these ads.
AkumaMotorsports is offline   Reply With Quote
Old 12-31-2009, 03:07 PM   #2
KB'izzle
*** Banned ***
 
Member#: 169955
Join Date: Jan 2008
Chapter/Region: SCIC
Location: PhatBotti'd/Phatron'dAnaheimCA
Vehicle:
30R BUILT STI /AREA
P no limits/ALLIANCE FABn

Default

very nice guys, sure are whipping out alot of cars recently
KB'izzle is offline   Reply With Quote
Old 12-31-2009, 03:18 PM   #3
CVR STi
Scooby Specialist
 
Member#: 127428
Join Date: Sep 2006
Chapter/Region: Tri-State
Default

Looks good! Hows IAN aka kiwi doing ?
CVR STi is offline   Reply With Quote
Old 12-31-2009, 03:37 PM   #4
CatfaceType-R
Scooby Guru
 
Member#: 81102
Join Date: Feb 2005
Chapter/Region: MWSOC
Location: I sell platinum cat jewelry.co
Default

nice engine and fmic piping
CatfaceType-R is offline   Reply With Quote
Old 12-31-2009, 04:12 PM   #5
Dom Terreto
Scooby Newbie
 
Member#: 180034
Join Date: May 2008
Chapter/Region: Tri-State
Location: IAG performance
Default

Anyone that's been to the shop knows that this project has been long and laborious but it is being tied up in excellent fashion! John did the majority of the work himself and if you know him, you know how particular he is... Especially with his vehicle.

That being said, even seeing the project step by step.. The results are extremely impressive. This is a rotated turbo that is spooling as fast as a bolt on and making loads of power. If you have seen any other of our recent threads then you know what a heartbreaker we have, and what the numbers this car achieved really mean. As John stated, he will be pushing it farther soon, and hasn't even begun revving it out to where he can.

I think this car has been an excellent example of how matching the proper parts, allowing the right flow, and doing things the right way can pay off. I don't think anyone can argue that what you're looking for is the spool of a bolt on, but the power of a rotated. Well here it is! Congrats John... See you tomorrow lol.

Evan
Dom Terreto is offline   Reply With Quote
Old 12-31-2009, 05:05 PM   #6
mapleleaf
Scooby Specialist
 
Member#: 103399
Join Date: Dec 2005
Chapter/Region: E. Canada
Location: Halifax, Nova Scotia
Vehicle:
2009 Stripped STI
Dirty White

Default

Nice mod list....too bad about the brake pads.
I hope you don't plan on road racing it.
mapleleaf is offline   Reply With Quote
Old 12-31-2009, 05:38 PM   #7
fourmicah
Scooby Specialist
 
Member#: 128760
Join Date: Oct 2006
Chapter/Region: RMIC
Location: Over there>
Vehicle:
2012 Ruckus/WRX
Red&White/Gray

Default

Nice set up! That seems like amazing power for your dyno. I'm sure that thing pulls like a freight train. I've heard that a hybrid turbo like this is the best way to go for Subies. I'm very interested in the turbo and how it works out for you.

The only question I have, is there a reason why you decided to run the intercooler piping directly over the turbo? It seems like most people are working on avoiding that these days. I notice that the Cosworth Intake doesn't leave much room for running something like that underneath it like the stock unit, is that the reason?
fourmicah is offline   Reply With Quote
Old 12-31-2009, 09:48 PM   #8
pisymbol
Scooby Newbie
 
Member#: 174448
Join Date: Mar 2008
Default

Interesting, does Akuma sell the ECPro? I didn't think anyone in NJ do ECPro.

Nice power gains. I am probably going with the ECPro for the New Year myself.
pisymbol is offline   Reply With Quote
Old 01-01-2010, 01:12 PM   #9
AkumaMotorsports
Former Vendor
 
Member#: 214570
Join Date: Jun 2009
Chapter/Region: Tri-State
Location: NJ/SLC
Vehicle:
2008

Default

Yes we can sell you the EC Pro should you want one. I would caution you, that you will have to have some understanding of how to identify and fix small issues. I firmly believe anyone who is purchasing a stand alone ECU, should have some basic understanding of EFI calibration principles. If we sell this unit to a customer, I will personally train the person on the unit. This will be included in the price.

As far as the pads, they are not off the shelf Axxis pads. They work very well on the track, promise. I will be getting the Ferrodo 2.1 for the track though with new rotors for next season.

I designed the intercooler this way deliberately. I have many different set ups, from reversed manifold, counter clockwise/clockwise flow, under the mani, over the mani. I know I am going to get some resistance to this statement, but it is tested. They shorter piping makes no difference in performance.

The key to a proper intercooler set up rests on two main points, IMO. 1. The inner Diameter of the piping and the number of 90 or greater than 90 degree bends. Shorter piping will add the benefit of less weight, but it is negligible.

On the first point, it is critical to mate your turbo, piping ID, and core dimensions correctly.(I am not going into displacement/header set up). Many people go for the biggest core and piping. Not the best choice. As far as cores go it is all about efficiency, fin density is king here. You all may remember the Surface area to Volume Ratio idea.... here it is. You want to keep the piping smaller on the hot side of the core to keep up velocity, and larger on the cold side to allow for flow/expansion...you get the idea. The piping is far enough above the turbo that heat is no issue. The meth jet placement also assists in cooling.

The second point is easy to visualize. Picture running down a hallway. Which can you run down faster a straight one 20 feet long or one with 4 90deg turns 15 feet long? This is an over simplified concept, but I think it get the point across. The idea was to keep the path of flow as straight as possible. The extra foot or two make no difference at this level of flow. If we made the kit correctly, piping diameter and core choice, then the kit would exhibit proper flow and cooling properties without sacrificing performance. This is the case for the current iteration of the kit.

The FMIC is our prototype. It will be put into production very soon. We just put our GTR Intake out. As soon as they are done, we will start on this. I am just debating on weather to keep this core(works awesome, but you have to trim the bumper beam and bumper) or go with a taller core that requires no cutting. Keep in mind, a proper FMIC is not going to fix a poorly set up header/up pipe combo. The vehicle needs to be set up correctly to realize the full potential of any turbo set up.

Sorry for the long post. Happy New Year!!

John
AkumaMotorsports is offline   Reply With Quote
Old 01-01-2010, 01:33 PM   #10
IMPORTEDCARS
Scooby Newbie
 
Member#: 56945
Join Date: Mar 2004
Chapter/Region: Tri-State
Location: CT
Vehicle:
08 STI Base Model
Black

Default

Quote:
Originally Posted by AkumaMotorsports View Post
Yes we can sell you the EC Pro should you want one. I would caution you, that you will have to have some understanding of how to identify and fix small issues. I firmly believe anyone who is purchasing a stand alone ECU, should have some basic understanding of EFI calibration principles. If we sell this unit to a customer, I will personally train the person on the unit. This will be included in the price.

As far as the pads, they are not off the shelf Axxis pads. They work very well on the track, promise. I will be getting the Ferrodo 2.1 for the track though with new rotors for next season.

I designed the intercooler this way deliberately. I have many different set ups, from reversed manifold, counter clockwise/clockwise flow, under the mani, over the mani. I know I am going to get some resistance to this statement, but it is tested. They shorter piping makes no difference in performance.

The key to a proper intercooler set up rests on two main points, IMO. 1. The inner Diameter of the piping and the number of 90 or greater than 90 degree bends. Shorter piping will add the benefit of less weight, but it is negligible.

On the first point, it is critical to mate your turbo, piping ID, and core dimensions correctly.(I am not going into displacement/header set up). Many people go for the biggest core and piping. Not the best choice. As far as cores go it is all about efficiency, fin density is king here. You all may remember the Surface area to Volume Ratio idea.... here it is. You want to keep the piping smaller on the hot side of the core to keep up velocity, and larger on the cold side to allow for flow/expansion...you get the idea. The piping is far enough above the turbo that heat is no issue. The meth jet placement also assists in cooling.

The second point is easy to visualize. Picture running down a hallway. Which can you run down faster a straight one 20 feet long or one with 4 90deg turns 15 feet long? This is an over simplified concept, but I think it get the point across. The idea was to keep the path of flow as straight as possible. The extra foot or two make no difference at this level of flow. If we made the kit correctly, piping diameter and core choice, then the kit would exhibit proper flow and cooling properties without sacrificing performance. This is the case for the current iteration of the kit.

The FMIC is our prototype. It will be put into production very soon. We just put our GTR Intake out. As soon as they are done, we will start on this. I am just debating on weather to keep this core(works awesome, but you have to trim the bumper beam and bumper) or go with a taller core that requires no cutting. Keep in mind, a proper FMIC is not going to fix a poorly set up header/up pipe combo. The vehicle needs to be set up correctly to realize the full potential of any turbo set up.

Sorry for the long post. Happy New Year!!

John
Great work! See you soon -)

-George Kakaletris

Last edited by IMPORTEDCARS; 01-01-2010 at 01:51 PM.
IMPORTEDCARS is offline   Reply With Quote
Old 01-01-2010, 01:43 PM   #11
bhhamblin
n00b Moderator
Moderator
 
Member#: 99397
Join Date: Oct 2005
Chapter/Region: RMIC
Location: Clinton, UT
Vehicle:
13 STI, 83 DR30
93 R32 GTS-T, 93 R32 GTR

Default

Very nice numbers John. Must be a blast to drive!

Any plans on coming to UT again? My wrx could use a touch up and my sti will need a tune once the new motor is installed.
bhhamblin is offline   Reply With Quote
Old 01-01-2010, 02:28 PM   #12
mapleleaf
Scooby Specialist
 
Member#: 103399
Join Date: Dec 2005
Chapter/Region: E. Canada
Location: Halifax, Nova Scotia
Vehicle:
2009 Stripped STI
Dirty White

Default

Pardon my ignorance but what is "not off the shelf" about Ultimates.....
Are they making a proprietary race compound I'm not aware of?

I'm curious why you are going with the 2.1's versus the 1.1's? Is this car going to be doing Time Attack duty?
mapleleaf is offline   Reply With Quote
Old 01-02-2010, 08:19 PM   #13
whitestar
Scooby Newbie
 
Member#: 130454
Join Date: Oct 2006
Chapter/Region: Tri-State
Location: NJ
Vehicle:
2006 STI
White

Default

Hey John, are you still on the stock clutch?
whitestar is offline   Reply With Quote
Old 01-02-2010, 09:29 PM   #14
Dom Terreto
Scooby Newbie
 
Member#: 180034
Join Date: May 2008
Chapter/Region: Tri-State
Location: IAG performance
Default

Nooooo.. Lol. Clutchmaster clutch
Dom Terreto is offline   Reply With Quote
Old 01-02-2010, 10:04 PM   #15
AkumaMotorsports
Former Vendor
 
Member#: 214570
Join Date: Jun 2009
Chapter/Region: Tri-State
Location: NJ/SLC
Vehicle:
2008

Default

Clutchmasters. The Axxis Pads are made for another company, not Axxis. That is what I meant. I misspoke abut the Ultimates'. They are a more race oriented compound. I had to call to find out exactly.
AkumaMotorsports is offline   Reply With Quote
Old 01-03-2010, 08:24 AM   #16
mapleleaf
Scooby Specialist
 
Member#: 103399
Join Date: Dec 2005
Chapter/Region: E. Canada
Location: Halifax, Nova Scotia
Vehicle:
2009 Stripped STI
Dirty White

Default

Thanks for clearing that up....
Nice build.
mapleleaf is offline   Reply With Quote
Old 01-03-2010, 11:05 AM   #17
rexworx
Scooby Guru
 
Member#: 103232
Join Date: Dec 2005
Chapter/Region: Tri-State
Location: GTX3076R-276/272, GTX3071R
Vehicle:
MY05 GDA,MY04FXT6spd
2.5ltr,PPG,Front LSD,4.44

Default

Great Job john and the Akuma team. Car must be a beast to drive...
rexworx is offline   Reply With Quote
Old 01-04-2010, 06:24 PM   #18
fourmicah
Scooby Specialist
 
Member#: 128760
Join Date: Oct 2006
Chapter/Region: RMIC
Location: Over there>
Vehicle:
2012 Ruckus/WRX
Red&White/Gray

Default

Thanks for the reply on the FMIC piping. There is so much about the design of them that I don't understand, specifically the piping. That kits looks awesome and the turbo looks like the perfect turbo for the street if you want relatively quick spool and good HP.
fourmicah is offline   Reply With Quote
Old 01-05-2010, 03:32 PM   #19
AkumaMotorsports
Former Vendor
 
Member#: 214570
Join Date: Jun 2009
Chapter/Region: Tri-State
Location: NJ/SLC
Vehicle:
2008

Default More Pics!!!

These are our 5 axis CNC Heads. We can offer these for 1999.00!! If you want the full valvetrain and assembly, just let me know and I can get a full estimate(requires your heads as core)




KILLER B OIL PAN!!! This thing rocks.

Into the beast!



AkumaMotorsports is offline   Reply With Quote
Old 01-05-2010, 07:07 PM   #20
ImprezaRSfan!
Scooby Specialist
 
Member#: 13520
Join Date: Dec 2001
Chapter/Region: MAIC
Location: Springfield, VA
Vehicle:
99rs ej207 spec-c
its for sale

Default

Quote:
Originally Posted by AkumaMotorsports View Post

They shorter piping makes no difference in performance.
+1

I was disappointed when my gt35r reverse-manifold setup didnt make any difference in spool-up compared to the normal manifold placement. Infact, i had more 90-degree bends after the change to make the reverse-manifold setup work correctly, so i probably made it spool slower LOL.

I did all that work for nothing
ImprezaRSfan! is offline   Reply With Quote
Old 01-06-2010, 08:05 AM   #21
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Great build, I'm glad we could be a part of it!

Great innovative stuff here and I'm looking forward to following this and future projects!
KillerBMotorsport is offline   Reply With Quote
Old 01-06-2010, 09:46 AM   #22
AkumaMotorsports
Former Vendor
 
Member#: 214570
Join Date: Jun 2009
Chapter/Region: Tri-State
Location: NJ/SLC
Vehicle:
2008

Default

The Killer B pick up and oil pan are critical parts to this build. The increased volume of the pan and the structural integrity of the pick up are two details that make this part of the build. Not having to worry about oil volume and delivery, are two very important details often overlooked on hih HP builds.

The fit and finish on the Killer B parts are excellent. We still need one more pick up and one more pan for a 2005 STI! Waiting patiently.

John

Quote:
Originally Posted by KillerBMotorsport View Post
Great build, I'm glad we could be a part of it!

Great innovative stuff here and I'm looking forward to following this and future projects!
AkumaMotorsports is offline   Reply With Quote
Old 01-06-2010, 02:40 PM   #23
whitestar
Scooby Newbie
 
Member#: 130454
Join Date: Oct 2006
Chapter/Region: Tri-State
Location: NJ
Vehicle:
2006 STI
White

Thumbs up

awesome build John... can't wait and see what it does when you turn up the boost!!
whitestar is offline   Reply With Quote
Old 01-09-2010, 06:57 PM   #24
STIdad
Scooby Newbie
 
Member#: 195929
Join Date: Nov 2008
Default

I'd really like to hear more about the ECPro. What kinds of little issues would an end user face that you were referring to earlier? What other drawbacks are there, and what are the real benifits?

I've always thought that the ECPro would be the best ECU solution available, but very few have used it to this point and less have really commented on it. The product description from Cosworth only tells so much.
STIdad is offline   Reply With Quote
Old 01-09-2010, 09:14 PM   #25
Dom Terreto
Scooby Newbie
 
Member#: 180034
Join Date: May 2008
Chapter/Region: Tri-State
Location: IAG performance
Default

I'll leave the real pros and cons list to John.. But this car has amazing drivability and the ecu allows control over EVERYTHING... In the right hands(emphasis), this may be the best ecu on the market.

Evan
Dom Terreto 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
FS : 2008 STI OBP 30k miles sublimeplaid SCIC Private Classifieds 24 11-05-2010 02:43 AM
Sold law MWSOC Private Classifieds 2 06-09-2010 11:03 PM
FS : 2008+ STI SPT cat back exhaust Hokie-wrx wagon MAIC Private Classifieds 6 06-08-2010 10:33 AM
FS : oops sublimeplaid SCIC Private Classifieds 0 06-04-2010 11:14 PM
FS: 2008 STi (San Antonio) HaloWRX TXIC Private Classifieds 0 05-14-2010 01:00 AM


All times are GMT -4. The time now is 04:51 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.