Guess the ET

Discussion in 'Small Block Tech' started by UNDERDOG350, Sep 5, 2019.

  1. UNDERDOG350

    UNDERDOG350 350 Buick purestock racer

    Taking the new 73 Century to the Pure Stock drags this year. Giving the 72 a rest.
    Car has not been to the track before. Lets play guess the ET and MPH. Winner to receive 1 ataboy.

    Car details in case you have not read about it.

    Has a reman engine. Cam and compression ratio unknown. It has on average 145 psi per cylinder. Q-jet, pertronix, dual snorkle air filter, 2 1/2" exhaust, TH350- no shift kit, 2.73 gears and 255/60/15 tires. Probably 4100lbs. It's fully stock with AC.

    If you need more details just ask.

    I will hold my guess till the end so as to not influence anyone but will say it's no rocketship. The race is Sept. 13 and 14.
     
  2. johnriv67

    johnriv67 Well-Known Member

    That 2.73........
    Hmm no higher than 15.5, no lower than 18....
    17.12 at 77mph
     
    Last edited: Sep 5, 2019
  3. PGSS

    PGSS Gold Level Contributor

    Have to ask, is the 2.73 a posi?
    That low number gear or not you should get good tire spin if it's a peg leg..
     
  4. Doo Wop

    Doo Wop Where were you in '62?

    15.95 @86.35 MPH.
     
  5. Roberta

    Roberta Buick Berta

    Let's see a picture!
     
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    17.5 @75 MPH
     
  7. johnriv67

    johnriv67 Well-Known Member

    You have me second guessing myself, but I bet you've seen things that would back up that guess...
     
  8. TrunkMonkey

    TrunkMonkey Totally bananas

    17.64 @ 74.6 :D
     
  9. 1972Mach1

    1972Mach1 Just some M.M.O.G. guy.....

    17.1 at 75
     
  10. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    I figured 175 HP SAE net is about 140 at the rear wheels. the Dragtimes calculator figures at 4100 lbs, 140 RWHP goes 17.953 @ 75.92 MPH. That is probably ideal conditions though.
     
  11. TrunkMonkey

    TrunkMonkey Totally bananas

    Yeah. I was going with what Stephen was hitting with that '75 Electra at Bowling Green a few years back.

    Love seeing a big boat get up on plane! :D

    (One of Briz's pics...)

    [​IMG]
     
  12. MrSony

    MrSony Well-Known Member

    16.59 @ 79.7 mph
    :D
     
  13. gscalifornia

    gscalifornia Small blocks rule!!

    I'm guessing 16.2 @ 84 mph
     
  14. walts72

    walts72 Well-Known Member

    17.34 @ 76mph
     
  15. Dano

    Dano Platinum Level Contributor

    17.19 @ 77 MPH
     
  16. UNDERDOG350

    UNDERDOG350 350 Buick purestock racer

    No pictures until you guess.
    2.73 with no posi. hardly spins the 1 tire on the street with the 28" tall tires on it now. I've not even put the 255/60's on it yet. Would expect it to help the axle ratio. They prep the track pretty good. I'm not expecting wheel spin to be a problem.
     
  17. Fox's Den

    Fox's Den 355Xrs

    16.80@83
     
  18. 300sbb_overkill

    300sbb_overkill WWG1WGA. MAGA

    17.8 @ 76 MPH.
     
  19. UNDERDOG350

    UNDERDOG350 350 Buick purestock racer

    Derek you're killing me. It's not a pedal car.

    By the weigh (pun) I am guessing at the weight so you guys using a program could be a little off.
     
    Mart likes this.
  20. Mart

    Mart Gold level member

    ^^^ :D
    Curb weight seems to be 3,900. Heavier than his 3,570 Impala.:rolleyes:
    Steve tunes well......:D
    15.8 @ 86 mph
     

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