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  1. CurtisEmery

    Duramax block strength

    Thank you! It has taken a long time and lots of broken parts to get to where it is today!
  2. CurtisEmery

    Duramax block strength

    Yes sir you are correct!
  3. CurtisEmery

    Duramax block strength

    We cracked a bore last season with a half filled block @ just over 2200hp measured on an engine dyno. Engine has billet mains and gurdle no deck plate. This season fully filled block and solid iron heads engine is still running strong. Hopefully everything looks and measures good on disassembly...
  4. CurtisEmery

    EFILive Engine dynos

    Castner performance in Penn Yan New York is where we dyno.
  5. CurtisEmery

    Duramaxzak 2.6 pulling truck build

    We haven't had any luck with them lasting. Ended up going back to a reinforced hose connection.
  6. CurtisEmery

    Brett Deutsch's current motor finally on the engine dyno!

    PM me if you have questions. I don't want to derail the thread.
  7. CurtisEmery

    Brett Deutsch's current motor finally on the engine dyno!

    That's not too surprising. I recently pulled a set of siezecos out of a dmax with the upper ring land beat out of them. I have never had much luck with any of their snowmobile or mx offerings for what it's worth.
  8. CurtisEmery

    Brett Deutsch's current motor finally on the engine dyno!

    Thanks for the Info troll.... nowhere in this thread is wades name mentioned. Way to muddy up a good informative thread with useless information .Though it may not seem possible to you, Wade is not involved in every high hp/competitive dmax engine build. End of rant. Congrats to Brett and...
  9. CurtisEmery

    So, Why Oval?

    Definitely nothing comes without compromise.
  10. CurtisEmery

    So, Why Oval?

    Sorry I should have been more clear in my original post. What I am getting at is I think getting rid of the valve reliefs altogether and adjusting bowl volume to reach desired compression is a plus. 1 it requires less machining and 2 I think it promotes more uniform combustion.
  11. CurtisEmery

    So, Why Oval?

    Exactly. I have a hunch that getting rid of the valve relief is gaining us some low lift flow as a side benifit. Last disassembly showed the fuel plumes we'll inside the bowl. How much is reaching the cylinder wall I can't say for sure. I haven't seen any signs of bore wiping or fuel dilution...
  12. CurtisEmery

    So, Why Oval?

    Competition.
  13. CurtisEmery

    So, Why Oval?

    Quite a bit wider and shallower.
  14. CurtisEmery

    So, Why Oval?

    This is an interesting topic. I have done a few engines with loose quench and no valve reliefs in the last couple years. The latest build had .120" piston to head 14:1 compression. Hasn't hurt performance in the least. The engine is more responsive than it ever was at 16:1. I should also add...
  15. CurtisEmery

    Niama-Reisser LLC compressor wheels

    I could see it working as a protrusion 3.0 on the 80mm exducer gt45 turbine. But a native 84mm compressor on a 76mm turbine would surge like a bastard. Might work on a 2litre engine turning 10000rpm, but not a diesel.
  16. CurtisEmery

    Niama-Reisser LLC compressor wheels

    Seems like some big claims with no conclusive data to support.... The wheel design looks crude imo. No way a 84mm compressor is going to work on a gt42 chassis.
  17. CurtisEmery

    whose gonna be at schied?

    We can always call a cab.... lol
  18. CurtisEmery

    whose gonna be at schied?

    Awesome Randy booked a room for myself and Mat at the motel 6 as well! Cant wait!
  19. CurtisEmery

    cam bearings?

    You can, just not in the caustic hot tank. I have had plenty done in a water based turbo washer no problems.
  20. CurtisEmery

    Competition Pulling

    Like has been previously stated. It comes down to rate of injection. We have more ci and much better heads,yet still lag behind. The only difference is the injection system. Once we can match the mechanical injection rate and flow things will start to swing in the common rails favor.
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