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  1. Rotary Valve Cylinder Head Prototype

    Hey zedicus, Thanks for the feedback. I don't know much about that process but open to give it a shot if it works. Right now I just need to get the thing marginally running and things for now have taken a turn for the worse it would appear..So I have not really made any progress on this...
  2. Rotary Valve Cylinder Head Prototype

    @zedicus, thanks for the info.The project has been stagnant for a while but I made some progress this week. I finally got around to building an electric furnace to do this..I located some powdered metal, and made a die to press the powder. Here is the die I cam up with....And here is the...
  3. Rotary Valve Cylinder Head Prototype

    I had not thought of that but good point. I'm sure that is the case. I'll probably hack together a simple signal inverter between the CAS and the ECU for now.
  4. Rotary Valve Cylinder Head Prototype

    No I had not heard of that cam sensor. Thanks for sharing. I'll look into it. I'll shoot Jafro a message it sounds like he knows his stuff when it comes to that.Thanks for the advice. Yes I need to get the coolant sensor fixed for sure. I need to get a new pigtail ordered as well as the iac...
  5. Cylinder Head Casting

    Thanks for the suggestion. Silicon nitride is on my list of things to try. I did not know they used them for apex seals so that is good to know. When I was first looking into the rotary engine it the only material I could find being talked about being used for the seals them was nitrided cast...
  6. Cylinder Head Casting

    Probably a few weeks. The powdered metal probably is not going to get here until late this week or early next week. Also I need to figure out how I am going to get the right temperature for sintering. I don't think my furnace I have is going to hold the right temp. I went to a salvage yard today...
  7. Cylinder Head Casting

    Thanks. I tried to start it the other day but the seals blew out . I have some material on order to make some new seals. I'm going to attempt to make them from powdered metal with a solid lubricant in them.
  8. Rotary Valve Cylinder Head Prototype

    I got the sensor installed and am getting spark and fuel. I cranked her over. Some spits and sputters but will not start. I think the ignition timing is off. I'll hook up a timing light next to see where it's at.So close..
  9. Rotary Valve Cylinder Head Prototype

    Yes I think that would be the case of not timed correctly. I would have put it on the intake side but the regulator on the fuel rail is in the way. The cam gears turn the same direction and I hopefully timed it correctly. If there is something I'm not understanding let me know.
  10. Rotary Valve Cylinder Head Prototype

    Yes I used the OEM cam gears and they are in the stock position relative to the block so I can use the OEM timing belt.There are metal gears the OEM cam gears are connected to, these drive the rotary valves. This setup actually results in the rotary valves turning the same direction and speed...
  11. Rotary Valve Cylinder Head Prototype

    Ahhhhh it never ends. So I'm not getting spark anymore. I was not getting a signal from the CPS originaly. So I took it out and there was some metallic debris stuck on it as it's magnetic. I cleaned everything off and it started working. And now nothing but sometimes I can get it to work but its...
  12. Rotary Valve Cylinder Head Prototype

    It finally appears to be working! Hopefully will be starting her today.http://www.instagram.com/p/BOXY_fAAJs-/?taken-by=goldenfabllc
  13. Rotary Valve Cylinder Head Prototype

    Thanks a bunch guys! That is just what I need to know to get this worked out.Yes two sensors. The one in question on the exhaust "cam" and I also have the stock crank angle sensor that has the three wire triangular plug.No, I am not on there. If you know someone that has done this with a...
  14. Rotary Valve Cylinder Head Prototype

    Made a quick video to explain better.
  15. Rotary Valve Cylinder Head Prototype

    I'm so close. I got the fuel pump wired up and fuel lines connected today. My knock sensor and CAS came in today as they were broken (as in peices) on the donor car... Unfortunately I hit a bit of a snag with the CAS. The car the motor came out of is a '95 Talon but the block has a different VIN...
  16. Rotary Valve Cylinder Head Prototype

    Thanks miguelmcv I got it working! The CEL comes on and my scanner talkes to the ECU via the OBD2 port!I opened up the ECU and there were two leaking capacitors. I replaced them and cleaned up the board. At that point still no CEL but it was evident the ECU was booting up because some of the...
  17. Rotary Valve Cylinder Head Prototype

    Yes please that would be very helpful. I have been going off of these http://www.hotrodcoffeeshop.com/forum/viewtopic.php?t=72 http://www.hotrodcoffeeshop.com/forum/viewtopic.php?t=72 I think the manual should clear up for me whatever it is I am missing.Thanks for the info. I'll check if my...
  18. Rotary Valve Cylinder Head Prototype

    Unfortunately wiring the ECU is really taking a lot if time. ECU pins 13, 26, 92 are all connected to ground. I have ECU pin 80 wired to constant power (+12V) via a 5 amp fuse. The two black and red MPI wires are getting fed constant +12V power via a 20 amp fuse. I have ECU pin 82 getting...
  19. Rotary Valve Cylinder Head Prototype

    Thanks for the feedback Sp1kE. So it sounds like you are saying releiving excess pressure (if neeed) at the filter housing would be sufficient. If someone knows otherwise (would need to do it at the head instead) please chime in.If anyone knows of a write-up for taking a stock wiring harness...
  20. Rotary Valve Cylinder Head Prototype

    Status as of today: -I got the high pressure oil line to the turbo sorted out and finished. -Head is torqued down, all belts and pulleys are installed and the valves are timed. -Exhaust, intake, and cooling plumbing is finished. -I have a 2.5 gal fuel cell on order.Today I am working on the...
  21. Rotary Valve Cylinder Head Prototype

    I agree I really need to tone down the sharp turns and abrupt changes. One of the contributing factors to the crappy design was I was not able to draft the shape I wanted in the CAD software I was using. Lowesy excuse I know but now I have another CAD program that should make short work of it so...
  22. Rotary Valve Cylinder Head Prototype

    So I got the head on a flowbench yesterday. A little disappointed in the results but now I have a baseline to work from. I have room to re-design the ports for more flow. Of course static flown on a bench is only part of the picture but the numbers were still really low. I only tested with the...
  23. Cylinder Head Casting

    If I remember correctly the design compression ratio was around 10. I have yet to measure. A bit high I know for a boosted engine, I can machine away material to decrease it. Yes the combustion chamber is really deep with a good amount of squish, I'm hoping I get a benefit from it.Yes 16 v...
  24. Rotary Valve Cylinder Head Prototype

    Yes a 16 valve version could be good but easier to do 8 for now until the design is proven.I have some video I need to get up on youtube. Don't know when I'll get around to editing and posting it up though..The valves are cast from aluminum and then machined. I was able to do all the casting...
  25. Cylinder Head Casting

    Sorry about the pics not showing up. Not sure what the problem is. They show up fine on my end. The pics are hosted here http://www.goldenfab.com/temp_share/pics/ and here: https://www.facebook.com/pg/goldenfabllc/photos/?tab=album&album_id=1128121320563614I did take a lot of video of the...
  26. Rotary Valve Cylinder Head Prototype

    The cross section of the valve ports at the seal is 1" ID, exhaust and intake are the same size to make it easier to build for now, it will likely change. I forget what the ID of a stock valve seat is, maybe slightly smaller. But my prototype has half the number of valves so I'm with you -...
  27. Rotary Valve Cylinder Head Prototype

    I called that shop and talked to the wife and am waiting for a call back. Else I'm going to TX for turkey day where there is a shop I used to work for that has a flow bench.Thanks for the ideas on the oil line. Mine had a 1/4" brake line which the ends have a 7/16-24 threads which I thought...
  28. Rotary Valve Cylinder Head Prototype

    So I bought a talon for an engine to use for this project. The guy I got it from was fed up with it because it had so many problems. The guy he got it from had really screwed it up. His words were "it was like he took scissors to it". So it had a new turbo on it but unfortunately it probably...
  29. Prescott Area: Looking for Flowbench for Prototype Head

    Hi All,I'm in the Prescott area. Does anyone know if there anyone in the area that has a flowbench? I am finishing up a protptype cylinder head I cast and am looking to see what it flows.I have another thread going about the head here...
  30. Rotary Valve Cylinder Head Prototype

    AdR, I see what you are saying. This may be true for some rotary valve designs but not for the design I have done. For my design there is 100% overlap of the passage to the rotary valve chamber and the combustion chamber port. Also what you are referring to the rotary valve chamber is about the...
  31. Rotary Valve Cylinder Head Prototype

    AdR, great observations. As far as timing goes I have not got there yet. My initial design has the valves open/close exactly at TDC/BDC without any overlap for the proof of concept prototype to be changed later. The valve ports are in as cast condition so the tolorance are not great and I have...
  32. Rotary Valve Cylinder Head Prototype

    For those wondering about the design and how the seals work it is really close to this https://patents.google.com/patent/US5361739A/en
  33. Cylinder Head Casting

    5th Casting This time I tried using sodium silicate as the binder for all the mold and core pieces setting it with CO2 gas. I had a little better results but still unacceptable core blows. The pour temperature was 1350 deg F. Here is a picture of the casting.6th Casting I used #30 silica...
  34. Cylinder Head Casting

    Hi all this is a sister thread to this one http://www.dsmtuners.com/threads/rotary-valve-cylinder-head-prototype.507585/.Here I thought I would share some pics of the work I did casting a cylinder head. This is over a years worth of work summarized in pics.Here is the CAD model of the head...
  35. Rotary Valve Cylinder Head Prototype

    Has anyone seen anything actually for sale from Coates or anything they make independently tested? I called them years ago and told them I wanted to test out something they had, anything, I said name the motor and I'll buy it and they had nothing for me except to sell patent rights nobody could...
  36. Rotary Valve Cylinder Head Prototype

    I'm excited there is interest in this project.Crash, I'll let you guys know how it goes for sure.Sp1kE, the plan is that the valves would not wear out very fast but the seals would be the wear item as they are small and inexpensive to replace. Going to be doing some R&D on some material...
  37. Rotary Valve Cylinder Head Prototype

    Thanks Bobby, To answer your question rotary valve head designs are nothing new and there are many design flavors. There are numerous patents on them and a few designs that have been in production. The design I made is very similar to a ball valve (think of a ball with a hole in it that rotates...
  38. Rotary Valve Cylinder Head Prototype

    Hi All,I'm new here and new to DSMs but am a long time gear head. I would like to share a project that is a long time coming...This all started back in high school. A buddy of mine had come across a company that had a design for rotary valve heads for a small block ford with some impressive...
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