Whats your guess? 475CID on the Dyno yesterday evening

Discussion in 'Race 400/430/455' started by Opa, Jun 4, 2009.

  1. standup 69

    standup 69 standup69

    640 hp
    615 ft lbs
     
  2. Jim Weise

    Jim Weise EFI/DIS 482

    Sure, already sold 2 555 CI Pro-Charged/FI motors... around 30K complete..

    For us more fiscally challenged folks, I did in fact order a development block, with all Buick specs, to build and test several different combinations. I would imagine the 503ci motors are going to come in between 12 and 20K, depending on options and how many parts you can re-use off your old engine.

    I beleive the 503ci version of your motor would have surpassed 700 HP.

    And would be 100 lbs lighter..





    I am going to stop by the dyno shop tomorrow and get a disc burned with the Superflow log files (the pulls).. I have the hard copies on my desk here.

    I have the Superflow program in my computer, and can use the saved files right from the session, and it really looks nicer to transmit via email and put on the board.

    JW
     
  3. gymracer01

    gymracer01 Well-Known Member

    I'm going to give my 2 cents guess at 588hp and 618 ft lb. Sounds like a lot of nice parts but i like C/R and Stage 2 heads.
    Jim N.
     
  4. Babeola

    Babeola Well-Known Member

    Lets try 570 HP and 590 TQ?

    Cheryl :)
     
  5. RG67BEAST

    RG67BEAST Platinum Level Contributor

    683hp 628tq
    Ray
     
  6. Topless64-455

    Topless64-455 Well-Known Member

    629 Hp 618tq
     
  7. TORQUED455

    TORQUED455 Well-Known Member

    675/640
     
  8. 75Riv

    75Riv A.K.A. Harry Clamshell

    I can use a 1-minute-vacation-in-my-own-country.... so a wild guess:

    647HP / 7500 Lbf/inch
     
  9. bostongsx

    bostongsx Platinum Level Contributor

    Update?
     
  10. Tim

    Tim Silver Level contributor

    Results????
     
  11. Opa

    Opa Torque/a 8 piston figure

    Just waiting on the Dynosheets. :Comp:

    I can say is that some of you are very very close to the HP and Torque numbers.
     
  12. bostongsx

    bostongsx Platinum Level Contributor

    Can you give us the peak numbers
     
  13. Jim Weise

    Jim Weise EFI/DIS 482

    Robert,

    Here's the sheets..


    With an 80513-1 1000 HP Holley


    [​IMG]


    With your carb- best pull

    [​IMG]



    JW
     
  14. whamo

    whamo 454 71 skylark custom


    hummmm..... looks like you were pretty close on both numbers. Are you sure that wasnt a SWAG?
     
  15. mygs462

    mygs462 Well-Known Member

    So 652hp and 616 tq if i read it correctly.
     
  16. K0K0

    K0K0 Jamie

    Those #'s are with the HP holley
    646 HP 617 TQ proform 950
    Great #'s you will have fun with your new motor.How much of a power increase is this giving you?
    Jamie
     
  17. mygs462

    mygs462 Well-Known Member

    I know I was quoting the highest # cuz noone is gonna say ya my motor makes the lower # when someone asks.
     
  18. sailbrd

    sailbrd Well-Known Member

    Oh doody doody do I win a swipwise? :laugh:
     
  19. Opa

    Opa Torque/a 8 piston figure

    That will be about 200HP more at the rearwheels, and alot more torque!

    So will be a ral good inprovement over my old 464 Stg1 11.1 compression engine. After 250+ runs I made with that motor and the former owner made about 150 runs with it also, it still was good for low 12s at the strip and 12.6-12.8 on street tracks.
    So with the new motor, the new trans/convertor, the rearaxle upgrade with a full spool (was still driving an orginal 12bolt posi unit), trailingarms upgrade with HRPARTSN&STUFF parts and also from them there chrome moly rear swaybar etc I have all my bases covered.
    We will go over the driveshaft also.
    We will have the car ready for the 10-13 july race.
    Gonna enter the car in the PRO-ET class so we can run the car as fast as it can.

    I don't no what a swipwise is :Do No: but I'm sure thats a GAG to! :laugh:
     
  20. K0K0

    K0K0 Jamie

    So you are still running the 12 bolt right? If so do you have the axle housings welded to the diff housing?I didn't and broke the spot welds and put the diff into the floor pan.From dr shaft to new diff $1800 lesson because i didn't listen.
    Jamie
     

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