My procharged grocery getter

Discussion in 'The Bench' started by Thumper (aka greatscat), Jul 22, 2018.

  1. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

    My 71 GS procharged grocery getter on the dyno.
     
    Brian Albrecht, docgsx, Briz and 11 others like this.
  2. john.schaefer77

    john.schaefer77 Well-Known Member

    I love how the front lifts up! Bet you can get the groceries home before the ice cream melts!
     
    65Larkin likes this.
  3. sriley531

    sriley531 Excommunicado

    Awesome!!!!
     
  4. Dwayne B

    Dwayne B Well-Known Member

    That is one wicket motor, you can just tell it has got the torque, the way the front comes up.
     
  5. bill lagna

    bill lagna Well-Known Member

    WOW Gary ,
    Ya got a real stump puller there !!!
    VERY , VERY NICE !!!!!!
    Bill
     
  6. mbusher83

    mbusher83 Well-Known Member

    Sweet! What kind of numbers did it pull Gary?
     
  7. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

    I don't remember Mark, lol
    over 550 hp and less than 650 hp at the wheels. on 6psi and 27 deg. total timing. started to go lean at 5600rpm so we shut it down.it was still climbing,will make some fuel delivery improvements then make some more pulls. then increase the timing some.I also have a 8psi pulley if I dare. ha-ha
    gary
     
    300sbb_overkill and 1972Mach1 like this.
  8. Taulbee2277

    Taulbee2277 Silver Level contributor

    If I had a car like that I would go to the market more.
     
    OHC JOE, Houmark and john.schaefer77 like this.
  9. rmstg2

    rmstg2 Gold Level Contributor

    Outstanding!

    Bob H.
     
  10. mbusher83

    mbusher83 Well-Known Member

    Very cool!
     
  11. Mike B in SC

    Mike B in SC Well-Known Member

    To steal an ad line from Pontiac, that car is a device for shrinking time and distance... And I would go to the store more often, too!
     
    Last edited: Jul 23, 2018
  12. sailbrd

    sailbrd Well-Known Member

    sriley531 likes this.
  13. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

  14. dr

    dr Well-Known Member

    I love this I played it realllllllllllllllllll loud. My wife gave me the look. I have to admit the dyno pulls scare me, I saw one pull in person I walked towards the door in a cool but quick manor
     
  15. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

    My butt puckered the first pull too. But then I remembered the race cars have transbrakes and its what I do on the starting line.
     
  16. 70staged

    70staged Well-Known Member

    I was expecting a wagon on the dyno. But either way that is impressive.
     
  17. 12lives

    12lives Control the controllable, let the rest go

    sweet!
     
  18. jake csordas

    jake csordas Well-Known Member

    We are running 38 degrees of timing and then start pulling as the boost comes in. I believe we are down around 26 degrees with 10 pounds of boost.
     
  19. jake csordas

    jake csordas Well-Known Member

    Very nice on the dyno. Glad it's starting to come together. I am sure you were impressed with the real numbers it made.
     
  20. sailbrd

    sailbrd Well-Known Member

    I am so chicken chips. At 8 pounds of boost I am pulling 14 degrees so that is around 22 degrees total. All iron motor. Gary, the crank, rods and pistons are from a shortblock I bought from you 15 years ago! I would add some timing but the thing hits like a ton of bricks now. Don't know what I am going to do for traction with the "big" motor.
     
    Buick#455 and 300sbb_overkill like this.

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