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    1. Site News

      News and updates about our site.
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    2. Vendor Announcements

      Special sales, group buys, and product announcements from our supporting vendors. We encourage all members to read and submit vendor reviews as well.
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      Latest: Piston Skirt Coating Jon Lane, Apr 21, 2018 at 10:36 AM
    3. Site Problems/Feedback

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      Latest: How to delete dsm profiles ? Ludachris, Mar 28, 2018
    4. Welcome Forum/Member Intro's

      Stop in and introduce yourself
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      Latest: First dsm tk106, Apr 20, 2018 at 8:47 AM
    1. Tech Article Archives

      DIY Tutorials, VFAQ's and Parts Reviews posted by our members.
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      Latest: Emissivity and an engine KilleRabbit, Apr 5, 2018
    2. DSM Build Journals

      Start a Journal to document your DSM build and document race events, dyno days, etc for the car. To create a Build Journal you will need to Create a DSM Profile. A Build Thread will be created in this forum automatically.
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      Latest: 98 GSX Time Trial build gsxitement, Apr 21, 2018 at 8:09 PM
    1. Frequently Answered DSM Questions

      A collection of very common and repetitive DSM questions with links to the answers. Required reading for all newbies! All threads in this forum are locked, replies are disabled.
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      135
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    2. Maintenance & Repairs

      Oil choices, timing belt, setting timing, CV boot replacement, alternator servicing, fuse/relay checks, and other basic maintenance, repair and diagnosis Q&A.
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      10,858
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      Latest: Random lean condition Melbowski, Apr 21, 2018 at 7:59 PM
    3. Bolt-on Tech

      4G63 intake, exhaust, intake manifold, ignition, fuel system, cooling, etc.
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      26,695
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      Latest: Methanol Injection & Catalytic Converter Shooty, Apr 21, 2018 at 6:55 PM
    4. Turbo System Tech

      4G63 turbos, Intercooling, Boost Control, Wastegates, etc.
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      Latest: help purchasing new turbo streetraceboi, Apr 20, 2018 at 7:20 PM
    5. Tuning & Engine Management

      4G63 EPROMS, ECU, MAF, knock, EGT, wideband, datalogging, fuel trims, etc.
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      13,351
      Discussions
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      Latest: How does my WOT tune look? 0-60 in 6 sec! mountainbike91, Apr 21, 2018 at 12:16 PM
    6. Engine Swap Tech

      For all discussions surrounding engine swaps - DSM engines into other cars or other car engines into a DSM.
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      172
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      Latest: Motor swap input 219 Tuner, Apr 3, 2018
    7. Cylinder Head & Short Block

      4G63 cams, valvetrain, pistons, rods, stroker kits, 6-bolt swaps, hybrids, etc. Read this Forum's Strict Guidelines.
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      Latest: Minor damage on piston due to knocking. brian9397gsx, Apr 21, 2018 at 9:40 AM
    8. Custom Fabrication

      TIG/MIG welding, jig-building, metal working, fiberglass, carbon fiber, and other custom fabrication projects.
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      Latest: starting new side exit downpipe amsrn13, Apr 21, 2018 at 4:40 PM
    9. Handling Tech

      4G63 suspension, steering, brakes, tires, lightweight wheels, bushings, etc.
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      8,058
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      Latest: Front and Rear Sway Bars = More Understeer? 96dsmftw, Apr 18, 2018 at 11:40 AM
    10. Drivetrain Tech

      4G63 transmission, clutch, flywheel, driveshaft, gears, differentials, transfer case, shifter, etc.
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      11,976
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    11. Electrical Tech

      Wiring, turbo timers, electronic boost controllers, gauges, fuses, wiring harnesses, wire tucks, car audio, and all other electrical component discussions.
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      1,923
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      Latest: MAF WIRING ISSUE DTC 0012 MVRACING, Apr 20, 2018 at 2:51 PM
    12. Appearance/Interior/Exterior

      All interior and exterior tech discussions; body and paint, conversions, lighting, washing, waxing, etc.
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      20,103
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      Latest: Window rattle (SOlVED) bduran1220, Apr 21, 2018 at 6:51 PM
    13. Newbie Forum

      Common, repetitive, beginner DSM questions that have been asked and answered thousands of times. We use this forum as a dumping ground for noob questions.
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      170,285
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      Latest: TPS adjustment MasterMatt209, Apr 21, 2018 at 7:52 PM
    1. DSM 420A Frequently Answered Questions

      All the common and repetitive 420A DSM questions asked with links to the answers. Read-only.
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      7
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      Latest: Cylinder head parts list BogusSVO, Nov 28, 2012
    2. 420A Bolt-on Tech

      Intake, exhaust, ignition, fuel system, cooling, etc - specific to 2G N/T DSMs.
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      9,009
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      Latest: rebuild issue pauleyman, Mar 27, 2018
    3. 420A Turbo Conversion

      Turbo kits, swaps, etc - specific to 2G N/T DSMs.
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      2,061
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      Latest: 420a turbo pt2 Basick2G, Apr 12, 2018
    4. 420A Engine Management

      EPROMS, ECU, MAF, knock, EGT, wideband, datalogging, etc - specific to 2G N/T DSMs.
      Discussions:
      317
      Posts:
      3,056
      317
      Discussions
      3,056
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      Latest: Cams & Timing 99Mitsubihi, Apr 3, 2018
    5. 420A Drivetrain Tech

      Transmission, clutch, flywheel, driveshaft, gears, differentials, transfer case, shifter, etc - specific to 2G N/T DSMs.
      Discussions:
      340
      Posts:
      2,928
      340
      Discussions
      2,928
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      Latest: Clutch advice and information Basick2G, Apr 12, 2018
    1. Drag Strip

      Preparation, technique, tips, and "kill" stories from the Drag Strip. No street racing discussions.
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      3,027
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    2. Road Course & Autocross

      Autocross, Road Race, and Open Track Event discussions. Preparation, technique, tips, and stories from the events. Tell us about your last event.
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      1,015
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    3. Dyno Talk

      For all the DSM dyno queens. Discuss dyno results here. For tuning discussions, use the Tuning Forum.
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      298
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      Latest: AWD Dyno Mattjaye2198, Mar 20, 2018
    1. The Hangout

      All non-tech and non-DSM related discussions. Read the Forum Guidelines. Play nice or get booted!
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      37,353
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      Latest: Best Shot of your DSM 99gstuner, Apr 21, 2018 at 5:53 PM
    2. Regional Discussions

      Connect with other local DSMers and organize DSM meets and track days.
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      20,786
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      Latest: LOCAL DSM PRO'S - EVO-Camino build Help Blackhills, Apr 19, 2018 at 2:04 PM


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