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Street Build Techboy's 99 4G63

Mitsubishi Eclipse GSX
  • Ownership Status:
    Currently Own
    Turbo Type:
    Transmission Type:
    Build Type:
    • Street
    HRC S16G turbo, HRC FMIC & hardpipes, FP manifold, FP oil return tube, port & polished 2G intake manifold machine matched to 1G TB, 650 FIC injectors, Custom-made JMF Downpipe, Greddy Evo 3" exhaust, JMF spark plug cover, JMF Coolant overflow bottle, JMF polished coolant pipes, Mishimoto aluminum radiator, fan shroud & high flow fans, Prothane Urethane motor mounts.
    Stock bottom end w/ machined head - 1mm O/S valves installed. Held together w/ ARP Head studs, BSEK, Gates Racing Timing belt.
    Mods-EMS & Logging:
    Apexi S-AFC & AEM WIdeband for tuning and monitoring. Autometer Phantom oil pressure & boost gauges.
    Short shifter & solid shifter cable bushings. ACT Lightened flywheel w/ Act 2600 & Pressure Plate.
    Lowered on Tokico Blues w/ Eibach Prokits. Aftermarket front and rear sway bars/strut bars. Rolling on Hankook Ventus RS-3's.
    Parts Wishlist:
    JMF street sheet metal intake, ECMLink V3.
    I started my journey with DSM's in summer of 2000 after purchasing a 99 GS Anniversary Edition off the lot. I turbo-charged that car in short order and drove it for roughly 5 years until I decided to make the jump to the 4G63 platform. I was searching for an X13 GSX, but came up short and settled on an X13 GST. The car is currently is setup with a mild street build. Future plans involve swapping the car to the GSX I always wanted and then running more power through it via a larger turbo and more robust fuel / engine management system.
  • 1/4 Mile E/T:
    1/4 Mile MPH:
    1/8 Mile E/T:
    1/8 Mile MPH:
    60' Time:
    Timeslip Details:
    Numidia Dragway, PA. May 2013. Rear interior of car removed w/ slicks upfront that didn't help with traction near as much as I was hoping it would.
    Dyno HP:
    305 bhp
    Dyno TQ:
    294.6 lb/ft
    Dyno Type:
    Dyno Sheet Photo Link:
    Dyno Video Link:
    Watch Video
    Dyno Shop Name:
    R/T Tuning, PA
    Dyno Session Details:
    94 Octane Pump gas. Photo link is of the only dyno sheet I can find right now. We made a few minor fuel and boost adjustments after the sheet linked and the car made just north of 300. Video link is of an older dyno session several years before when the car had less modifications.

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  1. PlanZero
    We gotta get together when the weather breaks, maybe do cars and coffee. Your GST is a very similar build to my Tsi atm, although I have no plans to convert her to awd.
    1. techboy
      I would have left it as a GST, but I like going to the track too much and I'm sick and tired of spinning wheels and trying different strategies to get it to hook up. I figured it I was gonna spend 1k on a Quaife, I might as well buy a donor car.
      techboy, Feb 20, 2018
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