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Old 10-03-2012, 05:25 PM   #1
Element Tuning
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Member#: 54918
Join Date: Feb 2004
Location: 673 WHP Element ProComp Engine
Default 535 WHP: Element Tuning Hydra EMS 2.7 08 STi ET Pro Comp 9:1 ENG Hydramist Pump 35R

535 WHP Mustand Dyno: Element Tuning Hydra EMS 2.7 08 STi ET Pro Comp 9:1 ENG Hydramist Pump Gas ET BV Heads 272 cams 35R

I don't have a lot of history on this dyno but I was told it reads 13% low which from my experience with other Mustangs is not out of the realm of reality. There aren't too many 08+ STis running around with this level of engine modification so it was a good project and we did learn a lot from this car. I was able to dial in the dual avcs maps in the Hydra for the BC 272 cams on the dyno but this took some time. Finding the right amount of overlap is not easy with the dual avcs setups. It's a balancing act of maintaining good spoolup but also good driveability. With the higher compression we never were going for big numbers on pump gas but managed 445 whp at 22 psi.

Moving into the pump and Hydramist maps we did get some misfires but the plugs were from the break in so we replaced and gapped them a little tighter. Like clockwork turn the Hydramist on, the Hydra switch maps, dial up the boost, lean out the AFR in the auxilliary maps, and we gained +90 whp with 80% water injection.

Numbers
Dyno: Mustang
Tuner: Phil Grabow Element Tuning
Wheel HP: 535 whp SAE
Wheel TQ: 500 ft-lbs SAE
Target Boost: 26 Psi
Target AFR: 11s
Fuel: 93 pump gas, Hydramist 80% water 20% meth
Ambient Temp: 95
Elevation: 0




Car Info Subaru STi
Year: 2008
Engine Management: NEW Element Tuning Hydra EMS 2.7 version 08+ STi with closed loop quad AVCS control
Turbo: Precision 35R
Intercooler: Custom
Meth Kit: Hydramist 80% water/20% meth
Injectors: 2200cc, Element Tuning custom fuel rails, DW1000cc, Aeromotive A1000 regulator, DW300 fuel pump, OEM pum, and Bosch 044
Engine: (STi 2.5 Element Tuning Pro Comp, Element Tuning Rods, Element STi Big Valve heads (+1mm valves), Brian Crower 272 Cams, Element modified 11mm pump, Element Tuning Dry Sump
Intake Manifold: OEM
Headers: Equal Length Perrin with External Gate
Uppipe: P&L?
Downpipe: Custom
CBE: Custom 3"
Other: Element Tuning Compeition Catch Can




I have to run so I will need to fill in the rest when I can….
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