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Projects Supercharged Ford Flathead project

Discussion in 'The Hokey Ass Message Board' started by AndrewB, Mar 5, 2014.

  1. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    20141130_091233.jpg Not part of the engine build but earlier this week this 8-3/4 aluminum carrier arrived from Mopar Performance. I'm going to start out with 3.55 gears, aluminum spool, and drilled axles.

    Andrew
     
  2. Holeee shit man. I WOULD LOVE to see success with this. It's one thing to cruise blown flatty'....but to ride the boost envelope as you pursue......pure rocket porn. 900 hp in a flathead is new to me.....and I would be happy if you hit anything close to half or over......so OF COURSE I am subscribed !! Good luck with everything.....wallet especially.
     
    1927graham likes this.
  3. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    Ya, the cost is why it's taking me so long to complete this project. I have a spreadsheet of every expense associated with it and it's not something I want my wife to see. Custom parts are 5x the cost and everything has been custom to this point.

    Andrew
     
  4. Gene Boul
    Joined: Feb 9, 2006
    Posts: 805

    Gene Boul

    The girdle won't hurt but not a necessity...front crank support is!
     
  5. Gene Boul
    Joined: Feb 9, 2006
    Posts: 805

    Gene Boul

    The girdle won't hurt but not a necessity...front crank support is!
     
  6. HotRodMicky
    Joined: Oct 14, 2001
    Posts: 1,764

    HotRodMicky
    Member

    Why do you chosse so much overlap with a supercharged engine?
    You will bleed of a lot of pressure
     
  7. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    HotRodMicky. From what I understand (which isn't much), overlap isn't as important in a supercharged application because scavenging isn't as necessary. I talked to Larry about this and from what I remember, he said it was in order to take advantage of the 180 degree crank, which is all about moving the exhaust out of the engine.
     
  8. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    I had the crank snout elongated a few inches to accommodate the pulleys and some left over for a front crank support, which I'll need to figure out how to fabricate.
     
  9. seb fontana
    Joined: Sep 1, 2005
    Posts: 6,596

    seb fontana
    Member
    from ct

    What will firing order be with a 180° crank, is there choices? I have heard 180° cranks can not be balanced as well as a 90° ones, any truth to that?
     
  10. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    The 180 firing order is 1-8-3-6-4-5-2-7. No real balancing and they'll rattle the teeth out of your head. Man, I can't wait.
     
  11. seb fontana
    Joined: Sep 1, 2005
    Posts: 6,596

    seb fontana
    Member
    from ct

    Thanks for the firing order; I've been telling people that the order goes bank to bank and I'd just get a strange look..How much rpm?
     
  12. 296ardun
    Joined: Feb 11, 2009
    Posts: 4,250

    296ardun
    Member

    Great build!! I agree on the girdle, or at least steel main caps. I ran some made by Wilcap years ago, had to reshape the front of the oil pan to get it to fit around the caps, but ran 40 runs with Ardun heads (no blower, though), but on almost straight nitro and never broke the welded stroker...I don't know if there are still Wilcap steel mains out somewhere on the used market or in someone's garage, but I really liked them.
     
  13. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    I'll be using a set of aftermarket Pro-Gram Engineering main caps. I have drilled the center main that will have an oil line feeding the bearing from the bottom. It's something my father in law has been doing on all his racing flathead engines.

    Andrew maincaps.jpg
     
    loudbang likes this.
  14. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    Marry Christmas to me! The 180 degree (4.25" stroke) crank showed up on my doorstep yesterday courtesy of Moldex. The reason for the longer snout is to accommodate a pulleys for the supercharger, fuel pump, oil/vacuum pump, and crank support. In the one pic you can see it compared to an original Norden crank. 20141216_145347.jpg 20141216_145551.jpg
     
  15. damn, nice...........
     
  16. Gene Boul
    Joined: Feb 9, 2006
    Posts: 805

    Gene Boul

    Generally you want to keep that "stuff" on the end of the crank as close to the front cover as possible. The blower drive and the blower pulleys should be compact. The blower crank hub, for a crank support, has an extended snout that fits into a bearing that is mounted in a plate. The plate spans the front of the motor. (Chrysler concept)
     
  17. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    I'll have to figure out the design and have something fabricated for a crank support. I'm not running a big blower cog belt for the centrifugal supercharger. I'm going to try Jones Racing 1" radius tooth HTD pulleys. Since I'll have room, I don't see the need for a crank hub and can just install the bearing on the crank snout. It's just a matter of aligning and securing the bearing in the front crack support plate.

    Andrew
     
  18. saltracer
    Joined: Jan 4, 2006
    Posts: 293

    saltracer
    Member

    Any updates?
     
  19. This thread is so cool, watching!!
     
  20. quickchangeV8
    Joined: Dec 7, 2010
    Posts: 384

    quickchangeV8
    Member

    Excellent thread!!
     
  21. AndrewB
    Joined: Nov 11, 2009
    Posts: 37

    AndrewB
    Member

    Well I've been sidetracked for the past year. My wife's son wanted to start bracket racing so I pulled a 63 Dodge Dart out of my father-in-laws field last January and re-built it. Still running the slant 6. That took 6 months. My wife took a year off of racing because of a scary experience she had on the track. Well, she took a ride down the strip in the Dart and decided she wants to race again but in a rear engine car. She doesn't want the engine in front of her anymore. So right now I'm building her a RED with a blown alky flathead. I'm hoping to have it done by June then get back to my project.

    This is the blower setup I'm purchasing from Luke Balogh in Canada.
    IMG_3806.JPG

    Dodge Dart before 20141220_111412.jpg

    Dodge Dart after 20150628_101301.jpg
     
    kidcampbell71 and loudbang like this.
  22. saltracer
    Joined: Jan 4, 2006
    Posts: 293

    saltracer
    Member

    very nice! The Dart is pretty cool too. Great family fun.
     
  23. I've been hearing bits and pieces of this story over with the Nitro for lunch bunch. Thought I'd put my Finger in the mix just to keep track of the story from the other side.
    The Wizzard
     
  24. youngrodder1929
    Joined: May 28, 2006
    Posts: 416

    youngrodder1929
    Member
    from Vancouver

    love the thread ! Building a nitro flatty as well no boost tho
     
  25. fullhouse296
    Joined: Jan 30, 2009
    Posts: 387

    fullhouse296
    Member
    from Australia

    I Have a KONG 3 main girdle with integrated seals ,if ya intristed in some surance .
     

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