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Old 05-16-2010, 07:48 PM   #1
tino
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Member#: 43630
Join Date: Sep 2003
Location: Down Under
Vehicle:
2004 GT40R-built 2.5
604 whp @1.8 BAR on VP109

Default GT40R twin scoll 604 WHP at 1.8bar

Many of you may not have seen my thread so i thought id also post a new thread for the power figures.

On VP109 race fuel we made 604 WHP @1.8 bar and 711 nm WHP torque. This is compared to the 579 WHP 1.9bar on the conventional high mount GT40R turbo setup.

Dyno was done in 5th gear to get 1:1 ratio on an STI 6 speed gearbox

The only difference between the two graphs (see below) of each setup is the new turbo setup was a true twin scroll low mount GT40R, 4" exhaust off a 3.5" dump; properly ported heads. Everything else on the setup was identical.


Only running 1.8 bar boost with this setup, as tuner says that the tune is very happy at this level and didnt want to start hurting the setup. Could easily smash 2.5 bar but there is really no point, at this power level should be well into the 10s no need to get another 50whp..


Event: dyno pull
Location: ASG Perth Australia
Ambient Temp: 24 Degrees celcius
Elevation: 31.5 m above sea level.
Weather: nice sunny day


Car: 2004 STI
Tuner:Sean ASG
Dyno Info: Dynopack
Transmission: 6 SPEED DCCD 05 STI
Gear: 5TH
Peak HP at RPM: 603.7 hp at 7100 rpm
Peak Torque at RPM: 710.5 nm at 4750 rpm
Baseline hp/tq for a stock on same dyno: 180-200 WHP Stock STI
Target Boost: 1.8 bar
Target AFR: 11.5
Fuel: VP109 race fuel
Engine/Power Modifications: see build thread http://forums.nasioc.com/forums/show...470621&page=54
Driveline Modifications: see build thread http://forums.nasioc.com/forums/show...470621&page=54
Suspension Modifications: see build thread http://forums.nasioc.com/forums/show...470621&page=54
Other Modifications:

On with the graphs:

Power vs Torque



Power vs Manifold pressure



Power vs Air fuel ratio



New VP109 tune (low mount turbo difference/heads) vs Old VP109 tune Power vs Torque



New VP109 tune (low mount turbo difference/heads) vs Old VP109 tune Power vs Manifold pressure

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Last edited by tino; 05-16-2010 at 07:57 PM.
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Old 05-16-2010, 07:59 PM   #2
gene4ace
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WOW nice work!!!! FTW
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Old 05-16-2010, 08:05 PM   #3
godforbid67
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35r, PPG, 280's, PSS9.

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Sick!
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Old 05-16-2010, 08:38 PM   #4
CosworthSTI77
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Awesome Tino, I bet that is a crazy ride with that power band !
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Old 05-16-2010, 08:49 PM   #5
DTSTI
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Which 40r is this?
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Old 05-16-2010, 10:14 PM   #6
PHATsuby
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Quote:
Originally Posted by DTSTI View Post
Which 40r is this?
Yes, curious which turbine housing you went with. Also any pics(or direct links) of the header/turbo setup?

Thanks, and congrats that is sweet!

Ben
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Old 05-16-2010, 10:35 PM   #7
tino
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Join Date: Sep 2003
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Vehicle:
2004 GT40R-built 2.5
604 whp @1.8 BAR on VP109

Default

Its a GT4088R with 1.06 rear housing


Heres the link to my build and heres some pics

http://forums.nasioc.com/forums/show....php?t=1470621



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Old 05-16-2010, 10:39 PM   #8
WRX SEX
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ballin
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Old 05-16-2010, 10:52 PM   #9
Steve.804
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wow...incredible.
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Old 05-17-2010, 01:00 AM   #10
atprex
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that baby pullin right to redline!.. awesome work brother
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Old 05-17-2010, 01:06 AM   #11
AceV
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Unnnnnfffff......wow!
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Old 05-17-2010, 02:17 AM   #12
evan_impreza
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Your car is disgustingly sick man. Truly an incredible build. Congrats.
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Old 05-17-2010, 02:41 AM   #13
All4bSpinnin
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any plans to turn the motor higher than 7500?
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Old 05-17-2010, 02:51 AM   #14
tino
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2004 GT40R-built 2.5
604 whp @1.8 BAR on VP109

Default

Thanks for the replies guys.


Quote:
Originally Posted by All4bSpinnin View Post
any plans to turn the motor higher than 7500?
yeh mate the rev limit is set to 8200 currently just not shown on the dyno plot.
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Old 05-17-2010, 03:08 AM   #15
seanathanq83
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now with one more gear

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That is insane, I Dont even plan to go that high on the power, but really makes me concider a Turbo setup like that
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Old 05-17-2010, 03:33 AM   #16
GeneralTJI
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Good Lord that thing is beautiful
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Old 05-17-2010, 04:04 AM   #17
Concillian
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1 Bar on a GT40 at 4k RPM... most 3076 don't hit 1 bar by 4k RPM. Low Mount craziness...700 RPM spool gain?
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Old 05-17-2010, 05:13 AM   #18
Beetspeed
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Amazingly good powerband! VERY impressive for such a relatively old turbo design that some have descarded as ancient or surpassed...
I'am starting to like the 40R more and more.

Quote:
Originally Posted by Concillian View Post
1 Bar on a GT40 at 4k RPM... most 3076 don't hit 1 bar by 4k RPM. Low Mount craziness...700 RPM spool gain?
Yes, I noticed too. Is that all to be contributed to the twin scroll set-up you'd say?
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Old 05-17-2010, 05:58 AM   #19
KP
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What's impressive is the spool gain between his 2 plots, but comparing this car to anything else on NASIOC with a 3076 really isn't fair. I know what you meant, that it spools like a 30r, but look at his setup. NOTHING on NASIOC like it.

Truly an incredible build. His main thread is well worth going through...


Tino, I would've liked to have seen how the ITB's came out. But with that being said I have no complaints regarding how the car came out!

Edit: Also is this after you took that cat out?
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Old 05-17-2010, 07:38 AM   #20
Pavlo
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Hi Tino,

I see you finally gave in went with the frotn mounted turbo! I have always found it worked really well, not just for the power but also the flexibility.

Well done.

Paul
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Old 05-17-2010, 07:54 AM   #21
xsblack
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Tino, you are an inspiration to everyone. It is really good to see all the hard work and time paying off for you. Keep pushing the envelope!
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Old 05-17-2010, 09:01 AM   #22
norexyet
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Fantastic! Looks great tino.
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Old 05-17-2010, 10:47 AM   #23
bertune
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Nice Tino, nice!
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Old 05-17-2010, 10:51 AM   #24
cpturbo
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Default the McLauren F1 of GD Subaru STi

It is now official that you have the best GD on this board! no doubt in my mind. I will PM YOU !
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Old 05-17-2010, 10:58 AM   #25
slowmike
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Tino that is an awesome build! How do you get the oil to to drain out of the turbo?
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