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2G Little to no Accel from stop

Posted by Baymax, Aug 12, 2018

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  1. Baymax

    Baymax Probationary Member

    4
    0
    Joined Jul 26, 2018
    Taylorsville, Kentucky
    So I recently purchased a pretty built gsx that I intend to build for autocross and track. Ive owned it for a week so for the most part I'm still figuring it out. I've noticed on two separate occasions if I go to accelerate from a stop it's like the car has zero power. I'm talking scary oh sh** I'm gonna get plowed low power (even though rpms are around 2500). I am not sure where to start looking, I've capped all the vacuum leaks I can find, spark plugs are brand new, vehicle runs like a raped ape any other time. A bit sluggish out of boost but I figured that was to be expected. This almost feels like no fuel, except no check engine light, no bogging or what would seem out of the ordinary except I'm giving it gas and not going anywhere. I'll post the mod list when I can. Any help is appreciated thabks.
     

    Autocross Build 382  1

    1998 Mitsubishi Eclipse GSX
    430 whp · 410 lb/ft · 2G DSM
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  2. Baymax

    Baymax Probationary Member

    4
    0
    Joined Jul 26, 2018
    Taylorsville, Kentucky
    Mod list

    MAP 4G63, stage 2, 6 bolt 2.01 block
    - wiseco pistons
    - ACL race bearings
    - MAP connecting rods
    MAP STAGE 2 HEAD
    -MAP valves
    -supertech valve seals
    -Ferrea valve guides
    - Brian Crower springs and retainers
    -ARP head studs
    Gates timing before
    Hks purple adjustable cam gears
    Brian Crower stage 2 272 camshafts
    Map ef1 turbo upgrade
    Act xt clutch
    Koyo oversized racing radiator
    Hallman pro manual boost controller
    Injen intake and filter
    Rm racing sway bars
    Stage 2 awd transmission rebuild by Shepherd transmission
    Greddy type s bov
    Perrin performance oil catch can and coolant overflow tank
    Aem air/fuel radio gauge, vdo boost and oil pressure gauge (have aem that will swap soon)
    Force performance race manifold
    Thermal 3" catback
    Agp full race fmic
    Pte 680cc fuel injectors
    Walbro 255 fuel pump
    Megan racing downpipe
    Symbroski solid shift kit
    B&m short throw shifter
    Russell SS brake lines
    Tokico illumina adjustable shocks (have got to go)
    Eibach pro drop springs 1.5" drop
    Ingall camber kits
    Dynamat through entire vehicle
    UNGO sr9000 security systems
    Dsm V3 ecu

    That's about all I can think of.
     

    Autocross Build 382  1

    1998 Mitsubishi Eclipse GSX
    430 whp · 410 lb/ft · 2G DSM
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  3. motomattx

    motomattx Proven Member

    1,320
    298
    Joined Dec 9, 2010
    wampum, Pennsylvania
    Might have a bad knock sensor.
     

    Drag Race Build 2K  13

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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