Jeremy's 455 motor build thread

Discussion in 'Street/strip 400/430/455' started by Jeremy Zepnick, Mar 30, 2022.

  1. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Hasn't been warm enough to drive around town and roads are salty yet.. need rain. Track opens next week for test and tune.

    I hope it runs wayyy better with the rebuilt transmission and new converter.
     
    dan zepnick and 12lives like this.
  2. TrunkMonkey

    TrunkMonkey Totally bananas

    I use painter's cotton drop cloth. It's 8x10 and slides around on my (polished) concrete floor.
    Just that thin layer makes a tremendous difference when the garage floor is 40-50 degrees.

    And I can slide under and out from under the car rather than "scootching".

    Been doing it like this for 50 years, and I keep telling myself, "I should buy a lift...". :)
     
    dan zepnick and FLGS400 like this.
  3. Max Damage

    Max Damage I'm working on it!

    Dadrider and 12lives like this.
  4. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Well it was test and tune day, first of the season. Car went it's best 12.95 at 102mph with 10-15mph head wind.

    First two passes were 13.12 and 13.10. Then my dad changed the front jets from 78 to 84. This car can probably run 12.60's on a good day!!

    See what a rebuilt transmission and a better torque converter does? And I was shifting on my own at 5000rpm. Through the lights it's about 4900rpm with the new converter.
     
    patwhac, dan zepnick and Mark Demko like this.
  5. Mark Demko

    Mark Demko Well-Known Member

    FANTASTIC!!
    I love hearing about trips to the track and the results, whether you think it’s good or not so good!
    Keep on tuning:cool:
    Post results;)
     
    dan zepnick and Jeremy Zepnick like this.
  6. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Try looking for my dad's video from today with his tomahawk motor. Yikes!
     
    dan zepnick and Mark Demko like this.
  7. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Well today my dad and I both used my car today. I raced street, he races hot rod.
    We both lost 2nd round.

    Car ran its best 12.699. (for me)
    Dad one upd me at 12.690.
    104mph.
    Alittle head wind.

    Car is pretty consistent from all 8 runs.

    Last week it was 84°, today it was 43°
     
    Last edited: Apr 22, 2023
    FLGS400, 12lives, dan zepnick and 2 others like this.
  8. 12lives

    12lives Control the controllable, let the rest go

    Please post a link to you dad's video - my search did nothing!
     
  9. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    It's on facebook.
     
  10. Max Damage

    Max Damage I'm working on it!

    I don't see it on his facebook page or on the Tomahawk group. Any other leads? A link would be nice..
     
  11. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    It's nothing fancy, it's just a huge wheelie, almost bumper dragger. But was unexpected. I'll see if I can youtube it and link it here if he wants it posted that is.
     
    12lives and Max Damage like this.
  12. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

  13. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Car went it's best 12.63. little tailwind. Then the heat set in and kept running slower.

    Had a .002 light and got a bye, but ended up racing someone and lost. 12.77 on that run.
     
  14. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Need more air in rears. Normally run 16lbs IMG_20230521_074642.jpg
     
    jr_, FLGS400, dan zepnick and 5 others like this.
  15. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Anyone catch that license plate number? Howd I get that lucky?
     
    FLGS400, Dadrider and dan zepnick like this.

Share This Page