Register now to get rid of these ads!

Projects rebuilding after the crash

Discussion in 'The Hokey Ass Message Board' started by racer-x, Sep 19, 2015.

  1. David Gersic
    Joined: Feb 15, 2015
    Posts: 2,492

    David Gersic
    Member
    from DeKalb, IL

    I think I got the only video of your second startup. I missed the actual start, but here's a few seconds of running. It's running rich, that's raw fuel coming out the exhaust headers.

     
    els, mad mikey and loudbang like this.
  2. Once we flipped the pump cover it ran on nitro. The barrel valve has a screw driver slot with a number stamped into it. At full throttle the slot should be horizontal with the number on the top. That is if the valve is mounted in the rear. We have it in the front. To do that the whole fuel block needs to be flipped so the inlet fitting is pointed in the right direction. Flipping it also makes the valve 180 out. One look at the pipes and we knew what was going on. I spun the valve 180 and it ran perfect. For a first time start up im ok with just having to adjust two things. The other way to set the valve is with a leak down gauge. I ran out of time so it wasnt done before i left. If i had time it would have been set at 70 percent leak. Im sure we are within a flat or two.
     
    els, loudbang, mad mikey and 2 others like this.
  3. saltflats
    Joined: Aug 14, 2007
    Posts: 11,252

    saltflats
    Member
    from Missouri

    Then when your in a flat or two will be all it takes.
    Hope to see you at the HAMB Drags
     
    els and porkshop like this.
  4. the adjustment bar that goes between the barrel valve and the throttle shaft has six sides. Each side or flat is about 1.5- 2 percent richer or leaner depending on which way its rotated. I was out so far the bar couldnt be adjusted to make up 180 out. The barrel valve arm has a pinch bolt that needed to be loosened up so i could spin the spool 180. We started it up again and found a slight mist coming out of the pipes. I leaned it out three flats while it was running with the desired results. I also played with the air valve. It works great at 50 percent open. The engine will talk to you. You just have to listen.
     
  5. saltflats
    Joined: Aug 14, 2007
    Posts: 11,252

    saltflats
    Member
    from Missouri

    For sure a tuners ear is worth a dozen or more drivers ears.
     
    els and loudbang like this.
  6. For those not familiar with the parts im talking about here are a few pics. The number stamped on the end of the spool refers to how the ramp is ground. There are diffent ramps for different fuels or for different percentages of nitro. I dont want to loose followers if they dont understand this stuff and what we are doing. 20160720_163937.jpg 20160725_093316.jpg
     
    els, Dog_Patch, volvobrynk and 6 others like this.
  7. mkebaird
    Joined: Jan 21, 2014
    Posts: 337

    mkebaird
    Member

    Racer-x, thank you for sharing your build of this fantastic car. Unsurpassed quality! A lot of us are not drag racers and it is very interesting to learn some of the finer points of your 'dual fuel' system. Really appreciate you taking the time with detailed explanations.
     
    els, loudbang and racer-x like this.
  8. You don't have to worry 'bout me.
    I've quietly been subscribed to this thread for months.
    The details are fascinating!
     
    els, loudbang, volvobrynk and 2 others like this.
  9. thanks guys. im sure there is a broad level of skill sets on the hamb. based on feed back and questions I agree most on here are not nitro racers but do find this all interesting. im just trying to share what it takes to build a crazy car from the ground up. sometimes I wonder if im posting too many details. some may find it boring. for my first thread it seems to be going ok so far. I never thought it would go over 100,00 views. im shocked every time I see the counter go up.
     
    els, Dog_Patch, loudbang and 4 others like this.
  10. squirrel
    Joined: Sep 23, 2004
    Posts: 50,919

    squirrel
    Member

    It's one of the better threads...probably because the car is so neat! and you're doing a great job explaining what you're doing, and why you're doing it. The pics really help
     
    els, Dog_Patch, bobwop and 4 others like this.
  11. Champscotty58
    Joined: Jul 1, 2010
    Posts: 121

    Champscotty58
    Member

    Yes, not boring. Never too much detail. Especially since the car is loaded with details.

    Bring it on
     
    els, loudbang and Peanut 1959 like this.
  12. David Gersic
    Joined: Feb 15, 2015
    Posts: 2,492

    David Gersic
    Member
    from DeKalb, IL

    Keep posting details. I'll never build a nitro drag / street coupe, but it's cool to see what goes in to building one.
     
    els, BurntOutOldMechanic and loudbang like this.
  13. Last september i was talking to squirrel on the last day of drag week about doing a thread on the rebuild. You are enjoying all of this because he showed me how to start the thread and post pics. Thanks jim
     
    els, bobwop, OahuEli and 4 others like this.
  14. squirrel
    Joined: Sep 23, 2004
    Posts: 50,919

    squirrel
    Member

    I forgot about that....yeah, I guess I did egg you on...the main thing I wanted you to know, is that folks love this kind of build thread. And you've shown us how to do it right!
     
    els, OahuEli, loudbang and 4 others like this.
  15. Folks like me DO love this build and the info will be more then handy if I ever do this to my coupe. Brian is good enough to share the blue print of the wildest street strip coupe on the planet!:D
     
    els and loudbang like this.
  16. The pics say it all. The steering is very smooth. The column bushings were fit by hand. The mount for the air lines turned out great. We did the final fitting this morning. 20160730_084649.jpg 20160730_084658.jpg 20160730_084738.jpg
     
    els, Dog_Patch, Stogy and 5 others like this.
  17. Taking a break tonight. We are at the largest german fest in the country. Bringing a little culture to the kids. Having a good time. We will get back on the car tomorrow.
     
    Last edited: Aug 5, 2016
    els and volvobrynk like this.
  18. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    I enjoy the amount of info you share. I wish I was closer because I would love to get some hands on learning.

    But other the that; keep up the good work and it will be all good.
     
    els and loudbang like this.
  19. loudbang
    Joined: Jul 23, 2013
    Posts: 40,111

    loudbang
    Member

    Like squirrel said we may never have a fuel car but we still enjoy reading the details. And your style of explaining what you are doing works very well.
     
    els, volvobrynk and mad mikey like this.
  20. mcmopar
    Joined: Nov 12, 2012
    Posts: 1,681

    mcmopar
    Member
    from Strum, wi

    I saw ya at the Meltdown drags, and was surprised that with everything going on you still took the time to answer my questions. Not only that you explained it so I understood it.
    I have learned that nitro doesn't need oxygen to burn, from this thread. I never even new it. Keep up the good work and thanks for posting.
    Hopefully we could get a video of the cockpit when going down the track when done.
    Tony

    Sent from my SM-G930V using The H.A.M.B. mobile app
     
    els and volvobrynk like this.
  21. jerry
    Joined: Mar 2, 2001
    Posts: 3,473

    jerry
    Member

    I've seen instances of the mag kill switch fusing the contacts over time, and not letting the motor start. It might be a good idea to change it out once in awhile, rather than having to trouble shoot it in the middle of a race!


    jerry
     
    els and loudbang like this.
  22. fast30coupe
    Joined: Nov 15, 2009
    Posts: 1,019

    fast30coupe
    Member
    from Illinois

    Brian
    Reread the whole build last night. I have a model a coupe body that's next in line rafter the 56. After rereading this last night it pretty clear there is only one direction to go with it. Keep up the good work.
     
    els, Dog_Patch and racer-x like this.
  23. woodbutcher
    Joined: Apr 25, 2012
    Posts: 3,286

    woodbutcher
    Member

    :eek: Hi racerx.I do hope that steering shaft is going to be shortened up a bit.:rolleyes::p.
    Good luck.Have fun.Be safe.
    Leo
     
    els and Stogy like this.
  24. i do use a mag specific switch. they are heavy duty. i do change them at regular intervals. sounds like a good plan with the a.
     
    Last edited: Jul 31, 2016
    els, loudbang and Dirty Deeds like this.
  25. jerry
    Joined: Mar 2, 2001
    Posts: 3,473

    jerry
    Member

    Good deal on the switch. I've seen them fail in the past and not have a spare. Ruins a day at the track!

    Glad that you are looking ahead!


    jerry
     
    els likes this.
  26. i use a msd mag switch. the light up 15 amp switches auto zone sells won't cut it.
     
    els, loudbang and mad mikey like this.
  27. 20160801_155841.jpg 20160801_155805.jpg 20160801_160619.jpg 20160801_155848.jpg 20160801_163101.jpg 20160801_172941.jpg 20160801_172814.jpg i was able to get out of work a little early today. i started out plumbing the shifter air lines. i need to be able to remove the steering wheel to get in and out of the car. So until the body goes back on i cant trim the lines any shorter. The bars that support the fuel tank look simple. They are far from it. The tank and all its attatched tubing are removable. There are several complex angles there. Its hard enough to build one on the first try. Now do it twice and make them match thats hard to do. It takes some balls to put a drill to mag halibrands. But what can you do it needed to be done. Next up for them is the mill. A 5x5 pattern needs to be drilled into them. Jim was hard at work with a piece of box tubing. He said this is your brake pedal. Im still trying to picture it in the car. The torsion bars are due to arrive tomorrow. the arms were shortened by six inches to make everything fit. this messed up all of the calculations. the bars were too strong now. because the arms were shortened half their length the bars had their diameter reduced by nearly half. they can't be cut on a lathe. they had to be sent back to be center less ground. Lucky im off so i get the fun of putting it all back together. Parts are starting to get bolted in their final places. Time is running short.
     
    Last edited: Aug 1, 2016
    els, volvobrynk, saltflats and 3 others like this.
  28. squirrel
    Joined: Sep 23, 2004
    Posts: 50,919

    squirrel
    Member

    The air hoses look just like the stuff we use on the high school robots :)
     
    els, volvobrynk and loudbang like this.
  29. i was told this air line can be run under real hot water so kit can be formed into nearly a 90 degree angle. do you have any experience doing this jim
     
    els and loudbang like this.
  30. squirrel
    Joined: Sep 23, 2004
    Posts: 50,919

    squirrel
    Member

    I know it will get soft if it's attached to a compressor that overheats.... my guess is that it probably can be formed like that. There are also 90 degree quick disconnect fittings, that look just like those elbows that have a thread on one side, you can get them without the threaded fitting. called an Elbow Union

    [​IMG]

    In the robot stuff we do, there are strict rules about not modifying pneumatic parts, at all, so we don't try to form the hoses.
     
    els, volvobrynk and loudbang like this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 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.