Refresh 1982 crossfire vette

Discussion in 'Engine: Repairs and Modifications & generally corv' started by jac1892, Sep 29, 2017.

  1. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

  2. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Holley Sniper 800cfm.
    Nitrous and boost compatibility.

    FI Tech is crap unless you plumb like a Race Drag Car.
     
  3. jac1892

    jac1892 Member

    Hi, guys does anyone flash proms anymore? I have a idle problem, at a light it wants to stall I'm wondering if this could be fixed by a prom flash? thanks guys.
     
  4. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    http://garage.grumpysperformance.co...sfire-vette-won-t-run-right.10096/#post-39710

    http://garage.grumpysperformance.co...ing-of-porting-an-x-fire-intake.144/#post-178

    http://garage.grumpysperformance.com/index.php?threads/the-cross-ram-intake.623/#post-2154

    http://garage.grumpysperformance.com/index.php?threads/a-few-cross-fire-tips.303/#post-987

    http://garage.grumpysperformance.com/index.php?threads/installing-a-crossram-on-a-c4.511/#post-636

    http://garage.grumpysperformance.com/index.php?threads/crossfire-sleeper.12732/page-2#post-65554


    while the dual throttle body cross fire intake design is comparatively restrictive and you'll benefit noticeably,
    swapping to better heads and the renegade after market intake and a cam like a crane 114132 ,
    theres always been a problem with many of these dual throttle body injection system simply being improperly adjusted and tuned,
    Ive found most of the 1984 corvette pick up noticeable power through simply correctly tuning and balancing the throttle bodys
    the stock engines O.E.M. power is PATHETIC compared to the corvettes true potential.
    theres an easy 70-80 hp or more in upgrading the cam,heads and intake
    now that might not sound impressive but its easily a 45% plus power increase
    the stock engine barely exceeded 205hp and 290 ft lbs
    reaching in excess of 330 hp and 350 ft lbs with correctly selected parts even retaining most of the original short block 350 is do-able,
    upgrade to a higher compression 383 stroker assembly and , better heads,
    intake and cam, and even retaining the dual throttle body renegade of offy intake,
    400 hp plus is not that difficult

    https://auto.howstuffworks.com/1984-corvette3.htm
     
    Last edited: Sep 12, 2018
  5. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    The Torque gain is what Think counts Grumpy.
    Once you hit 400+ Ft/lbs get it moving fast Street Driving.
     
  6. jac1892

    jac1892 Member

    Hi, guys what type of O2 wide band sensor do I need. Th check engine light goes on and off. thanks
     
  7. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I like the AEM UEGO Wideband 02 Sensor and Guage combo.
     
  8. jac1892

    jac1892 Member

    Thanks, I need one that will plug into my E.C.M.
     
  9. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    The Factory ECM from 1982 is very limited what it can read.
    A standard Nerst Cell O2 Sensor only.
     
  10. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    You will have to Data Log.
    Tune that way.
     
  11. jac1892

    jac1892 Member

    Hi, guys its been a while, I want to have the throttle bodies rebored and put in different injector. Whom ,would you suggest to rebore them and how do you get the injector in and out without messing them up. thanks . jac1892
     
  12. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I don't know.
    A good machinist friend if you have one.
    I have one here. Bob specializes in 1 off projects.
     
  13. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    The injectors should pull out using needle nose pliers.
    Grab both electrical pins at the same time.
    Twist and pull up.
     
  14. Kane

    Kane Member

    I've had Maxbore bore out two sets of TBs.

    Very reasonable & quick turn around.
     

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