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Mitsubishi Eclipse GSX
  • Ownership Status:
    I own it
    Turbo Type:
    GT30 Variant
    Transmission Type:
    Build Type:
    • Drag Race
    Engine: 1991 six-bolt 4G63t block and head .020” overbore (2021cc).
    Weight: 3,050 Lbs.
    80k miles on body and less than 10k miles on engine and trans.
    less than 8,000k miles on turbo + supporting mods.

    Engine Mods
    • Magnus Motorsports Stage 3 shortblock .020” overbore.
    • Ross Racing forged pistons (Magnus spec)
    • Pauter billet steel X-beam connecting rods.
    • Knife-edged OE 6-bolt crankshaft.
    • Clevite bearings.
    • Blueprinted and balanced to .25g (pistons, rods, and crankshaft with flywheel).
    • Magnufluxed block.
    • Balance shafts removed.
    • ARP head studs and fasteners.
    • Cometic MLS headgasket (86mm bore/.051” thickness).
    • 1G cylinder head with completely ported runners.
    • Ferrea 1mm oversized swirl polished stainless steel valves.
    • Ferrea dual valve springs and titanium retainers.
    • Ferrea spring seat locators and bronze valve guides.
    • 5-angle race spec valve job by D&G Motors.
    • Forced Performance “FPcam2” camshafts (Comp Cams: IN./EX. = 212 degrees @ .050” lift).
    - ARP cam tower bolts
    • AEM Tru-Time adjustable cam gears.
    • Magnus Motorsports V3 cast aluminum intake manifold.
    • MAperformance thermal barrier intake manifold gasket.
    • 1G 60mm throttle body with Magnus Motorsports 90mm-to-stock adapter.
    • Road Race Engineering oil catch can.
    • B&M external oil cooler and stainless steel braided lines/ AN fittings.
    • Earl’s Performance oil filter sandwich adapter.
    • Shaved and powder coated valve cover.
    • Gates blue Kevlar timing belt.
    • Prothane engine mounts.
    • Fluidyne 2G aluminum radiator.

    Turbo/Exhaust Mods
    • Forced Performance FP3052 ball bearing turbocharger with welded elbow and 2” extension from Boost Factory.
    • TiAL 44mm external wastegate with atmospheric dump pipe.
    • Large high flow stainless steel O2 housing with V-band connection.
    • Forced Performance -4AN inline oil filter/restrictor.
    • FP DSM ported and ceramic coated exhaust manifold.
    • Slow Boy Racing 2G front mount intercooler (28”x14”x4”).
    • Slow Boy Racing 2.5” short route intercooler piping.
    • GReddy Type S blow off valve.
    • Buschur Racing stainless steel exhaust manifold heatshield.
    • Buschur Racing 3” downpipe.
    • Buschur Racing 3” mandrel-bent cat-back exhaust system.

    ECU/MAF/Fuel System/Ignition System Mods
    • 1995 GSX ECU socketed by ECM Tuning.
    • ECMLink V3 with USB cable.
    • ECM Tuning SD cable.
    • Omni power 4-BAR MAP sensor and GM IAT.
    • Denso O2 sensor for leaded fuel.
    • Injector Dynamics 1700x fuel injectors.
    • Aeromotive A1000 fuel pressure regulator.
    • Magnus Motorsports billet fuel rail
    • Walbro 450LPH fuel pump (1) re-wired with large gauge wire and relay.
    • Full Blown billet tophat and fuel inline filter (-8 feed/-6 return).
    • 300M coil-on-plug conversion.
    • NGK ES spark plugs.

    Driveline Mods
    • Team Rip Engineering “New TRE” transmission rebuild.
    • Team Rip Engineering viscous coupling eliminator.
    • ACT 2600 clutch disk and pressure plate (balanced with flywheel).
    • Road Race engineering stainless steel braided clutch line.
    • B&M short throw shifter with carbon fiber shift knob.
    • Prothane shifter bushings.

    • Skunkworks fully adjustable coilovers.
    • Tokico Illumina 5-level adjustable dampers.
    • Extreme Motorsports front and rear anti-roll/sway bars.
    • Extreme Motorsports front and rear strut tower braces.
    • Powerslot front and rear slotted and zinc coated brake rotors.
    • Hawk HPS brake pads.
    • Stainless steel braided brake lines.
    • Powder coated control arms.
    • Enkei Tuning 18” wheels.
    • Advan/Yokohama AO48 225/40-18 tires.

    • Blitz Spec R dual solenoid Electronic boost controller.
    • Dynojet wideband O2 gauge and Bosch UEGO sensor and Autometer narrowband LED O2 gauge.
    • Viper Alarm and deterrent LED.
    • Autometer 30 PSI boost gauge.
    • Autometer oil pressure gauge and oil temperature gauge.
    • Autometer pyrometer/EGT gauge.
    • Autometer system voltage gauge.
    • Equis water temperature gauge.

    Interior Mods
    • Competition Engineering 8-point weld-in rollcage.
    • Corbeau fixed back race seats and Ultrasheild 5-point race harnesses.
    • Rear seats, carpet and cargo area panels removed.
    • Taylor battery relocation kit with aluminum box (moved to rear).
    • Carbon fiber dash inserts, A-pillar mounted gauge pods, and gauge cluster pods.
    • Fire extinguisher and mount.

    Exterior Mods
    • Blitz 4-piece body kit.
    • Professionally painted original red in 2003.
    • Shaved exterior emblems and insignia.
  • Dyno HP:
    436 bhp
    Dyno TQ:
    340 lb/ft
    Dyno Type:
    Mustang Dyno
    Dyno Session Details:
    22 psi on e85 90 degree day, stupid high Minnesota humidity 436whp

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CarNage likes this.


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  1. CarNage
    Are you going to use that vented hood in the future?
    Swap for hot days?
    1. smbgsx
      The whole widebody is pending sale actually. It's the AMB aero version 2 time attack kit.
      smbgsx, Feb 20, 2020
    2. CarNage
      Oh ic, nice but your selling.. ok
      CarNage, Feb 20, 2020
  2. smbgsx
    why does is say brake horsepower when I didn't write that? 436 is the all wheel horsepower. not brake horsepower at the flywheel.
    1. smbgsx
      smbgsx, Jan 9, 2019
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