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Jeff Sponaugle's WRX
"The Blue Line"
 Current
Modifications:
As the car currently rides, the engine
is a hybrid of the best USDM and JDM STI
parts. The block is the current
production US STI 2.5L, and the heads
and cams are from the MY03 JDM STI RA
Spec C. These were assembled with ARP
Headstuds and stock Subaru 2.5 STI
headgaskets. Since these heads have the
AVCS variable valve system, additional
wiring was added to allow installation
of a Japanese Spec RA ECU with variable
valve support. In addition to the engine
internals, externally a complete intake
and exhaust upgrade was performed. To
allow greater amounts of boost on pump
gas, an Aquamist 2D computer controlled
water injection system was installed,
along with a 5 gallon tank in the trunk.
(20% methanol)
To hold all of the power together, a
MY03 JDM STI 6 Speed transmission was
installed, along with the JDM STI clutch
and lightweight flywheel. Air
compression is achieved thru two
different turbochargers depending on the
application. Around town, the car runs a
Forced Performance 'Green' Turbocharger,
with the 6H exhaust wheel and 8cm
exhaust housing. At the track, a custom
AVO Turboworld AVO600 turbo is used.
This turbo is based on the GT35R
cartridge, and flows about 65lbs/min.
For open track day racing, the
suspension has also been upgraded. The
car rides on Tein HA coilovers with 448
lbs springs, Adjustable camber plates,
Perrin Rear Sway Bar and Endlinks, and
Cusco front strut tower bar. For the
track session, the tires are switched
out for Kumo Victoracer race rubber.
Supporting electronics, gauges, fuel,
and safety systems are also present.
Engine management is based on a
PDXTuning reflashed JDM ECU, as well as
a PDXTuning Tuned TurboXS UTEC.
Modifications
Engine
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USDM STI 2.5 Liter
Block, JDM MY02 STI RA
Spec C Heads and Cams,
ARP Head Studs
JDM STI RA 6 Speed
Transmission with LSD
front/center/rear, R180
Rear Diff
Forced Performance
Hybrid 'GREEN'
Turbocharger, T04e 50
trim based. (For Street)
AVO Turboworld AVO600,
GT35R based Turbocharger
(For Track)
MRT Front Mount
Intercooler
Perrin Catless Uppipe
Perrin 3.25" MAF Tube
and Intake
Perrin Replacement
Intake Manifold Hose
Perrin Radiator Hoses
HKS 4-1 Headers
BPM TT 3 Inch Turbo Back
Exhaust
STI RA Lightweight
Flywheel and Clutch
HKS Blowoff Valve
EcuTek Technology
Reflash JDM Spec C ECU
(AG970)
TurboXS UTEC Engine
Management with Launch
Control
Aquamist 2D Water
Injection System
PowerEnterprised
Aluminum High Capacity
Radiator
Greddy High Pressure
Radiator Cap |
Fuel
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GSS317 HP
255lph Fuel Pump
Perrin Performance Fuel
Rails and Steel braided
Lines
PE 800CC Injectors at
55psi static pressure
(1000ccs flow)
B&M Commandflo Fuel
Regulator |
Suspension and
Wheels
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Tein
HA-440lbs Coil-overs
w/adjustable camber
plates.
Cusco Front Upper Strut
Bar
Rota Gunmetal Grey 17"
Sub ZeroWheels with
235/45R17 ES100s
Rota Gunmetal Grey 17"
Sub Zero Wheels with
Victoracer 700s for the
track.
MRT Whiteline Anti-Lift
Kit
Perrin Rear Sway Bar and
Rear Mounts
Perrin Rear End Links
H&R 5mm wheel spacers, F
& R |
Brakes
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Wilwood
6-Pot 12.9" Front Brake
System
Prodrive Rear STI
Brakes, Rotors, and JDM
STI Rear hubs and Axels.
Goodrich Stainless Steel
Brake Lines |
Electronics
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ApexI
Electronic Boost
Controller (Set to 24
PSI)
Defi 60mm Electronic
Boost Gauge
Defi 60mm Electronic EGT
Gauge
Defi 60mm Electronic
Fuel Pressure Gauge
Defi 60mm Electronic Oil
Pressure Gauge
Defi 60mm Electronic Oil
Temperature Gauge
Perrin CenterMount Gauge
Cluster (2x60mm)
Defi Clock Replacement
Gauge Pod (3x60mm)
In car ECUTek Deltadash
and UTECEdit on Custom
Car PC
Apex-i Turbo Timer
Link KnockLink
TechEdge Wideband
Sensor, w/Display
TurboXS Tuner 'Tuna'
Wideband and Knock unit,
Integrated with UTEC.
Battery Relocated to
Trunk
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Exterior
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Prodrive
Replacement Headlights
Primitive Front
Replacement Grill
STI Foglight Covers
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Interior
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Recaro
Passenger and Driver
Racing Seats
Ralley-3 4 Point Seat
Harness, Driver and
Passenger
Speedware Harness Bar
Bailey Camera Mount
Momo RL Shift Knob
Indash MP3 Player
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