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  1. EARLYHEMIBILL

    turbo: blow thru vs. draw thru

    My brother put a pair of 280ZX turbos on a 340 in his Scamp. It was a draw-thru with a Holley 600 sitting on a sheet metal box and the turbos drawing thru a pair of long tubes with the turbos sitting ahead of the motor and the box sitting on the intake. It didn't look like it should work very...
  2. EARLYHEMIBILL

    show off them turbo header/manifold pics

    Very nice. Where did you get them coated?
  3. EARLYHEMIBILL

    show off them turbo header/manifold pics

    341 Desoto hemi into 67 Valiant.
  4. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    I'll use the 69 hood as the plug. A draft angle will be made along the sides of the hood plug using Bondo. PVA will be the mold release along with wax. Strips of balsa will be used as stiffeners or I will use a special type of foam sheet to thicken the final product to make it stiff. Dumas...
  5. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    The car is a 67, but I got a 69 hood and grill assembly. The 67 has an assembly running down through the grill assembly that holds the hood hold down. That gets in the way of the intercoolers. No room for the tranny cooler, so I got a glass bumper and the cooler will fit in the bumper.
  6. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    I'll make a mold of the hood and do one from glass. It will have the openings. can't afford am AAR piece.
  7. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    The motor is in and the front end is together. Will be driven while it gets ready for paint.
  8. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    They're just in finger tight right now. Will pull one and add a photo.
  9. EARLYHEMIBILL

    retard timing mechanically?

    Here's a vacuum advance piece I have. On most units, when the vacuum is gone, it slides to a dead stop. On this one, when you add pressure to the same side, it pushes forward instead of pulling back, therefore retarding the timing. It has a second hose fitting in the front. Don't know why, but...
  10. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    The top holes will be plumbed into the cockpit to regulators so I can adjust boost from there. Pressure will first come off the intake manifold to the regulator and then to the wastegates. If I just add a filter to the top of the wastegates, they will always open at the factory rated pressure...
  11. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    The injector adapters screw into the manifold. It is a pipe thread. The injectors are held into each adapter by 4 set screws.
  12. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    I was just mocking up the hoses and cutting them to length then. I had to tear down the motor completely to do some machine work in the block. The roller lifters were too short to reach the cam, so I ended up milling down the top of the lifter galleries to clear the lifter crossbars.
  13. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    They go to the mag which is not installed yet. The advance is welded shut and timing will be controlled by the Megasquirt. The only thing in the mag now is the coil and rotor. The ignition is an MSD setup driving the coil. Here's a little better explanation I think at youtube. Bill's Desoto...
  14. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Here's a better shot of the timing cover. Notice that 2 of the bolts that hold the cover are recessed under the gasket surface and that 2 of the 318 water pump will clear. Also an oiler for the gear drive. It is for a 340, but just a little modification down near the bottom of the block was all...
  15. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Thanks. Unfortunately the machine shop has set me back a bit. I have the engine tore down to the bare block now. Cam bearings were put in bad and there was metal in the motor. Have had to put goodies on Ebay to raise cash to put it back together. Was having motor work done at Doc's Engine and...
  16. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    If you look at the cover, you'll see a brass tube and aluminum block. I modified a 340 gear drive to fit this motor. There was no longer any room for the oil splash plate that is used with the timing chain setup, so I made an oiler for the idler gear bearing instead. The oil will squirt through...
  17. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Pulled the motor apart today to change cams. Here's a better shot of the finished timing cover.
  18. EARLYHEMIBILL

    retard timing mechanically?

    I have a suggestion that perhaps you've already thought of. Since the vacuum advance on a distributor is sitting bolted down and very removeable, remove it and see if you can pull the pushrod out any further than it is while just sitting there. In other words, see if there is something blocking...
  19. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Here's another shot. I took the intake and modified it to accept 4-bolt GM carbs. Using a boring bar it was opened for the larger throttle bores. I also lowered it for hood clearance. He tried putting on the 904 trans only to discover that the Hot Heads adapter only works with the 727. He did...
  20. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    He does nice work. Body work is something he excels at. Will post photos of the car. May have him do my bodywork. Every time I try, it looks like the work was done by Spanky and Buckwheat Incorporated.
  21. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    I'm helping a buddy with his 64 Valiant wagon with 241 hemi. He grafted on a set of 2-door sides and added a 64 Barracuda grill. Hot Heads provided a lot.
  22. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    I have to send out to have tig done. A mill and a lathe and a mig.
  23. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Looks better without the filters.
  24. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    I asked Gene about that moter back in the 80s. He explained that the Hilborns available for the motor just wouldn't move enough air at high RPMs so he took a set of Hilborns for a Chrysler and cut and welded them to fit. That was the trick to get good flow up high.
  25. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    The motor started out as just an injected unit until I saw the Gene Adams motor. Then I switched. I also have some 3.23 and 3.55 gears to play with. Am working on just getting it running right now. Plan on getting some bigger tires on the back later.
  26. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Sweet! Can I assume that is a Desoto? How old is this photo?
  27. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    We're putting together the materials for a foundry now. I'm getting help from Kenton Greth of SPEED SPORT fame. Very talented father son team, the father ( RED ), was setting records in the 50s usually racing against Art Arrfons Allison powered dragster. They ran a simulated grudge match last...
  28. EARLYHEMIBILL

    Turbocharged Desoto hemi for 67 Valiant

    Gene Adams is my engine hero. After seeing a photo of their turboed 392, I just had to try to duplicate as close as possible. It doesn't look much like it, but his wasn't built for the street. Found another shot of the Adams and Enriquez dragster. This shot says it all.
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