|
|
|
|
Thread Tools | Display Modes |
03-28-2014, 03:18 PM | #1 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
570whp, 93oct 50/50 Meth, 30psi, HTA86, IAG built, 105k daily driven,IMPOSSIBRU??????
2021 update (175,000 miles):
XR8269S turbo, IAG stage 4 extreme, stage 5 heads My previous thread (http://forums.nasioc.com/forums/show....php?t=2594791) and now I only added the Cosworth Intake Manifold! Performance shops can always put out big powered builds however they later turn out to be only mercurial and volatile setups that flicker and die away. What speaks resoundingly to a shop's expertise is churning out crazy builds that last and with a warranty that they stand by. IAG FTW! IAG V-band rotated turbo kit - Cosworth Intake Manifold - HTA86 0.82 Tial V-band housing - IAG FMIC kit with Spearco core and front bumper beam - IAG 4" Intake - IAG V-band Uppipe - IAG V-band Catless Downpipe - Tial 44mm External Wastegate with open dump - GT Spec Equal Length Headers V-band with Uppipe - Harman Motive Catback Exhaust - Aquamist HFS-6 running Boost Juice (50% methanol/50% water) - Injector Dynamics 2000cc injectors - Aeromotive 340lph Fuel Pump - Aeromotive Fuel Pressure Regulator - IAG Fuel Rails - IAG TGV Deletes - Cosworth Phenolic Spacers - Grimmspeed Electronic Boost Control Solenoid - Grimmspeed Thermostat - Mishimoto Radiator - Tial Q BOV - LFR7AIX Spark Plugs - IAG Catchcan - Stock Air Pump deleted - IAT sensor and 4 Bar MAP sensor - Cobb Accessport Speed Density protuned by Jorge IAG Stage 2 Bottom End - Manley Platinum Series 99.5mm Piston Set - Manley H-Beam Rods - ACL Main and Rod Bearings - OEM Nitrided Crank, OEM headgasket - Killer B Oil Pickup with Baffle - Gates Racing Timing Belt Kit - 12,000mile/1year warranty IAG Stage V Heads - ARP2000 Head Studs - Manley Extreme Duty 33mm Exhaust Valve Set - Manley Race Flow 37mm Intake Valve Set - Manley Valve Spring and Retainer Kit - IAG Stage V headwork with Multi Angle Valve Job/Port&Polish - Kelford Dual AVCS 272/268 11.30/10.50mm Lift Street Cams Stock STi baseline = 225whp __________________________________________________ _________ Long term follow up 1/2015: 40,000 miles daily driven with this setup. Motor got hit with the fuel pump failure but the Manley components took it like a champ and recovered apparently Had the car strapped to the dyno as an annual cardiac stress test in November 2014: Still pumpin' out great numbers __________________________________________________ __________________________________________________ 4/4/2015 - 45,000 miles still pulls okay 60k wear
* Registered users of the site do not see these ads.
Last edited by user1029; 05-26-2022 at 02:48 PM. |
03-28-2014, 03:32 PM | #2 |
Scooby Specialist
Member#: 127099
Join Date: Sep 2006
Chapter/Region:
BAIC
Vehicle:02 IMPERZA WRX BLACK |
nice build
|
03-28-2014, 04:18 PM | #3 |
Scooby Specialist
Member#: 78640
Join Date: Jan 2005
Chapter/Region:
NESIC
Vehicle:19 Tundra 20 Landcruiser | 12 IS-F |
Nice man. IAG is a great shop. I'm at 440whp daily driving, it's a great feeling lol. Most people in the 400whp+ range aren't driving these cars every day.
|
03-28-2014, 04:34 PM | #4 |
Scooby Newbie
Member#: 186194
Join Date: Aug 2008
Chapter/Region:
Tri-State
Location: Abbottstown, Pa
Vehicle:04 PSM STI :Agile Tuned 391hp/387tq: |
Nice build man!! I bet its a blast driving that everyday.
|
03-28-2014, 04:50 PM | #5 |
Scooby Newbie
Member#: 247611
Join Date: May 2010
Chapter/Region:
MAIC
Location: MD
Vehicle:2011 Built Motor STI SSM--410whp 475tq-MS109 |
Sick car- I think i saw that last weekend when I had mine tuned!
|
03-28-2014, 05:17 PM | #6 |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
do you have a overlay of this tune and your last one perferably both at the same boost pressure?
|
03-28-2014, 05:20 PM | #7 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
|
03-28-2014, 05:21 PM | #8 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
Thanks for the comments guys
|
03-28-2014, 06:15 PM | #9 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
This is the interesting graph on straight 93 octane, boost is the same but varied greatly on ambient temperatures.
Impressions: 1. Even at 25psi, the Cosworth IM is still not able to "wake up". There are huge losses of power down low and shifting of the curve to the right. 2. I wouldn't say I lost power with the Cosworth IM because you have to account for the temperatures differences in the tunes but certainly the benefits of the Cosworth IM on low boost are marginal at best. 3. The OEM STi manifold is fantastic and I would recommend keeping it if you are not building a drag/road racer. |
03-28-2014, 06:16 PM | #10 |
Scooby Specialist
Member#: 179846
Join Date: May 2008
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:07 STi Limited EFR 8474 TS EWG |
stage 5 heads, coool
|
03-29-2014, 01:10 AM | #11 |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
thats exactly what I was looking for....surprised you lose that much down low. I guess you can you feel that on the street? If it picked up around 5-5.5k it wouldn't be so bad since thats where the shifts land...
|
03-29-2014, 01:31 AM | #12 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
Yup it takes awhile to fill up those huge runners at tip-in with low/mid rpms. I feel the lag if I just floor it at 4000rpms. However, I downshift or brake boost or left foot brake around turns to minimize the lag
|
03-29-2014, 02:59 PM | #13 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Sure really ties the bay together well with that Cosworth in there.
Seeing the comparison for just the intake manifold is GREAT, I got the Cosworth IM as well on my car this makes me want to pull it off and see the difference. I don't need to spool sooner because my power band it as long as I need it to be to never shift out of it but this gets me curious to how soon my turbo would have picked up if I would have tested my OEM IM on it first. Do you know what specifically was the reason that the power doesn't hold on this build to the upper rpm? I just keep looking over everything you did and nothing stands out as a clear choking point. |
03-29-2014, 03:22 PM | #14 |
Scooby Newbie
Member#: 345840
Join Date: Feb 2013
Vehicle:2006 STi |
Awesome build and good looking car! Too many built motors blowing up during break in or during the first tune.
|
03-29-2014, 03:26 PM | #15 | |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
Quote:
thanks guys |
|
03-29-2014, 06:54 PM | #16 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
|
03-30-2014, 08:13 AM | #17 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
I'd pull timing to if I was out if fuel flow
|
03-30-2014, 05:24 PM | #18 |
Scooby Specialist
Member#: 193757
Join Date: Nov 2008
Chapter/Region:
MWSOC
Location: Cedar, MI HP Techs MPS-SSLR2.5
Vehicle:2006 XTI Limited OBP, Junior tuned 573WHP |
Something does not seem right here. That Cossie manifold should not hurt your spool like your graphs show and you should be making quite a bit more power at that boost even with moderate timing. You must have a or some boost leaks, somewhere! I would look it over vary carefully, pressurize the system start spraying some soapy water and find those leaks. You should be well over 600 on a Dynojet with that 75 lb. turbo! I'm making more power with less boost on PnL's Dynojet with a much smaller turbo.
My take on this is not a Cosworth manifold problem. I have buds with them on builds with similar power and I felt the response after the Cossie manis was overall improved, maybe not far left but everywhere else. |
03-30-2014, 05:45 PM | #19 |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
Why don't you think it would hurt spool??
there was another thread with a review (wanna say it was perrin) but with the cossy mani on a 30r setup it lost some down low and only picked up about 5hp past 6k |
03-30-2014, 06:44 PM | #20 |
Scooby Specialist
Member#: 193757
Join Date: Nov 2008
Chapter/Region:
MWSOC
Location: Cedar, MI HP Techs MPS-SSLR2.5
Vehicle:2006 XTI Limited OBP, Junior tuned 573WHP |
Friends of mine running them with positive results and the thread you're referring to Jeff/ sponagle's did not show it much later but showed midrange and upper end gains.
|
03-30-2014, 07:06 PM | #21 | |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
I disagree with your comment about Jeffs thread
Quote:
|
|
03-30-2014, 07:22 PM | #22 | |
Scooby Specialist
Member#: 193757
Join Date: Nov 2008
Chapter/Region:
MWSOC
Location: Cedar, MI HP Techs MPS-SSLR2.5
Vehicle:2006 XTI Limited OBP, Junior tuned 573WHP |
Quote:
Bottom line is this build should be making way more power at 30psi and way sooner! This car had more boost with the Cosworth. Last edited by manitou; 03-30-2014 at 07:31 PM. |
|
03-30-2014, 10:36 PM | #23 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
Not every car is the same get a grip.
|
03-31-2014, 12:10 AM | #24 |
Scooby Specialist
Member#: 316296
Join Date: Apr 2012
Location: Metro Detroit
Vehicle:2006 STIROID 10.5@131 on 29psi |
Very Clean engine bay! Hot side IC piping routed under the car?
|
03-31-2014, 02:18 PM | #25 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
^^Yup, thanks
|
Thread Tools | |
Display Modes | |
|
|