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Like a brick...

Discussion in 'The Hokey Ass Message Board' started by GuyW, Jan 1, 2010.

  1. GuyW
    Joined: Feb 23, 2007
    Posts: 649

    GuyW
    Member

    Another thread got me sharpening my pencil (so to speak):

    Post #97 (and # 103) in the chevy II 4 banger thread had some data points

    http://www.jalopyjournal.com/forum/showthread.php?t=144835&highlight=guyw&page=5


    1927 full-fendered T touring / stock height windshield/ top up / 65 mph / auto trans / Chevy II 4-banger / 90 hp at the flywheel...

    From this I calculated a value for (C<SUB>d</SUB> x A) which would allow me to make simplified aerodynamic calcs FOR THIS CAR CONFIGURATION (although it must be close for T-buckets with stock-type windshields / tops).


    So, I though someone might be interested in my results:

    What mph with 20 hp and manual trans? (ie stock) 40 mph

    What mph with 60 hp and manual trans? (ie flatty 4-bangers) 58 mph

    What HP to go 70 mph (auto)? 112 at flywheel

    What HP to go 100 mph (auto)? 328 at flywheel

    I love Ts, but I need to be realistic....

    This could all be refined for Ts with more data points and good estimates of frontal area...


     
    Last edited: Jan 2, 2010
  2. retromotors
    Joined: Dec 10, 2008
    Posts: 1,045

    retromotors
    Member

    At some point I'd be worried about wearing that stock height windshield!
     
  3. Boyd Who
    Joined: Nov 9, 2001
    Posts: 2,196

    Boyd Who
    Member

    I had a BBC t-bucket with a full height windshield. Got it up around 120 mph on the highway once and noticed the glass was bending a slight amount in the center where there is no frame. I slowed down...scared the shit out of me.
     

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