Register now to get rid of these ads!

Event Coverage The XO/PP Virginia HAMB Special Is Ready for Bonneville!

Discussion in 'The Hokey Ass Message Board' started by TomT, Aug 4, 2018.

  1. Really kind of Erie this morning, like a bit if a ghost town affect - I can probably count on one hand how many runs have been done this am ....

    John just got here so it's tine to get to work
    ...
     
    Stogy, loudbang, MP&C and 4 others like this.
  2. Tim
    Joined: Mar 2, 2001
    Posts: 11,434

    Tim
    Member
    from Raytown Mo

    Man, so cool :)
     
    loudbang likes this.
  3. greybeard360
    Joined: Feb 28, 2008
    Posts: 1,503

    greybeard360
    Member

    Close ratio 4 speed .... Keep the motor in the power band between shifts. A T5 is pretty wide ratio and 5 th gear will lug it pretty hard. You will probably still have to push it to get it rolling but you guys have that part down by now.
     
    loudbang and chryslerfan55 like this.
  4. Scott_Rod
    Joined: May 23, 2006
    Posts: 332

    Scott_Rod
    Member

    Some random transmission gear info. It’s from the inter web so it must be true.

    Powerglide. 1.76 1st, 1.00 2nd gear
    Th350. 2.52 1st, 1.72 2nd, 1.00 3rd
    Th400. 2.48 1st, 1.48 2nd, 1.00 3rd

    Most of the Chevy automatics have a similar drop going into high gear. The th400 has the tightest shift to high.
    A short tail shaft TH 400 is the same length as a powerglide, but uses a 32spline yoke instead of the 27 spline of the PG and th350.
     
    Last edited: Aug 13, 2018
    loudbang, Stogy and chryslerfan55 like this.
  5. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,384

    GMC BUBBA
    Member

    I feel as if the overall air density should be taken into consideration . 100 degrees at the Salt the air density is the same as 7000 feet during the day etc. Thats a 20% reduction in everything compared to sea level ?? 6000 rpm now equals 4800 ?? And this even changes during the day. Just a thought ??
     
  6. @GMC BUBBA landracing.com is broadcasting this information every 10-20 minutes. I'm sure John has it covered!
     
    loudbang and Stogy like this.
  7. Working on the tranny bushing problem, the tailshaft was removed, yoke cleaned up, new bushing installed, and sanded down for enough clearance so fluid can ride between the two ....

    rps20180813_132411-2.jpg

    rps20180813_132337-2.jpg
    We still have not done a compression test ....
     
  8. old flopper
    Joined: Apr 23, 2013
    Posts: 337

    old flopper
    Member

    Have you heard if there is a minimum speed they have to run to get license and get off short 2 mile rookie course and on to 3 mile competitive course? That would help by giving another mile for acceleration.

    Or just get some nitro from Thompson, that take care of that 2 speed transmission problem. :D
     
    loudbang and chryslerfan55 like this.
  9. saltflats
    Joined: Aug 14, 2007
    Posts: 10,252

    saltflats
    Member
    from Missouri

    Looks like a fair amount of weight on that driveshaft.
    You may want to think about a new one when you get home.
     
    loudbang likes this.
  10. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,090

    winduptoy
    ALLIANCE MEMBER

    Not to distract from the focus of this thread, but it is speed week and..... IMG_20180813_135206661.jpg IMG_20180813_122555661.jpg

    Sent from my XT1254 using The H.A.M.B. mobile app
     
  11. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,090

    winduptoy
    ALLIANCE MEMBER

  12. Danny Thompson's new record holder @448 ....
    rps20180813_141807-2.jpg
    rps20180813_141741-2.jpg
     
  13. ...heard that Speed Demon went 452 and change in B/BFS...fastest MPH so far!



    Sent from my iPhone using H.A.M.B.
     
    chryslerfan55, loudbang and Stogy like this.
  14. Stogy
    Joined: Feb 10, 2007
    Posts: 16,683

    Stogy
    ALLIANCE MEMBER

    That fella Danny is quite the inspiration. Congratulations to Him and his Team...

    Thanks to all keeping us on the edge of Land Speed exhilaration...I mean acceleration...:D...hey...I'm wearing my 640 shirt today...Go Team 640 Go...;)
     
  15. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,090

    winduptoy
    ALLIANCE MEMBER

  16. chryslerfan55, loudbang and Stogy like this.
  17. oj
    Joined: Jul 27, 2008
    Posts: 6,247

    oj
    Member

    Air is 7000'?! Goddamn, theres barely enough oxygen for the driver let alone an engine! What are the actual numbers? Thats a killer.
     
  18. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,090

    winduptoy
    ALLIANCE MEMBER

    I believe they are going to try IMG_20180813_160203634.jpg

    Sent from my XT1254 using The H.A.M.B. mobile app
     
  19. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,090

    winduptoy
    ALLIANCE MEMBER

  20. We are ready for another attempt tomorrow. Cyl 4 is ok - comp was good, no cyl wall scores as we checked it with a borescope we rented.

    Tire size is smaller, we adjusted the throttle, aired up the tires to 75 lbs as Goodyear stopped by today, and the driveshaft/pg tailshaft is all buttoned up.

    Fingers crossed ....
     
  21. Go get’em boys!!!!


    Sent from my iPhone using H.A.M.B.
     
    chryslerfan55 and loudbang like this.
  22. jimmy six
    Joined: Mar 21, 2006
    Posts: 6,933

    jimmy six
    Member

    Bonneville or land speed always has a learning curve. Trouble is its a learning curve every year. We choose to do things in building we believe will work and be the best choice. Some times they work, don't, or break in ways we can never anticipate. Not giving up is the key and we are seeing it right before our eyes. It is not Friday yet..go get 'um...guys.
     
  23. RidgeRunner
    Joined: Feb 9, 2007
    Posts: 867

    RidgeRunner
    Member
    from Western MA

    Says it all well worded in a nut shell right there!

    Big +1 on the go get 'um...guys!

    Ed
     
  24. VeryTangled
    Joined: Nov 25, 2013
    Posts: 8

    VeryTangled
    Member
    from Outside DC

    7:45 eastern on the FordBarn from TomT:
    We are ready to make another attempt tomorrow - we've made sone changes and we are feeling pretty good about things right now. If she stays together and all the starts align, we hope to post good news .....
     
  25. GO, GO, GO. Have fun and be careful.
     
    chryslerfan55, loudbang and Stogy like this.
  26. VeryTangled
    Joined: Nov 25, 2013
    Posts: 8

    VeryTangled
    Member
    from Outside DC

    Speaking as a noob here. I hope they can get a couple of strong runs maybe 2-3 runs from now. Keep all the parts on the truck and inch it up as long as everything stays connected. EDIT TO ADD: Parts left on the track surely will not be hepful.
     
  27. Stogy
    Joined: Feb 10, 2007
    Posts: 16,683

    Stogy
    ALLIANCE MEMBER

    0_20180813_204938.jpg

    Suns going down but the thumbs are up...
    Go Team 640 Go!!!

     
  28. Tom Samson
    Joined: Aug 11, 2018
    Posts: 1

    Tom Samson

    chryslerfan55, catdad49 and loudbang like this.
  29. The 640 is prepped and ready for an early morning run tomorrow. It’s suppose to be a little cooler so we changed to a thinner fluid in the air density compensator to reduce the annular drag coefficient on the super wienel drive gear. That outta get ‘er rollin sweet!

    We managed to clear out a few grammeters of NaCl in the cross shaft cooling jet for the turbo encabulator as well. The idea to check that came when the guys pitted next to us had to tow back. Seems their jet got plugged, flux pulses reverberated and they blew a johnson rod.
     
    Last edited: Aug 13, 2018
    63fdsnr, MP&C, dirty old man and 17 others like this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.