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RA004E

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Everything posted by RA004E

  1. Hello Adam, and CJ First of all really thanks for the help. I am trying to implement the ideas you guys said, and set it up in PClink. Please let me know what do you guys think. Am I getting it right? By using this method I think I can still retain the closed loop lambda auto mode - even in high boost. Fuel Main Injection mode - sequential/staged Fuel equation mode - traditional Stoich ratio - 14.7 (gasoline) Staged Injection Stage mode - Sec/Pri flow ratio Sec/Pri ratio - 2.089
  2. Hello CJ, I really appreciate you opinions! Will go deep thinking about what you said. I will probably stay with the method 2) and hopefully not fighting against the ECU fueling logics too much. method 1) was my original thought... 2 months ago I came out this idea and finally decide to give it up. Setting up two fuel system by using one fuel rail will eventually have some reliable issue, like the fuel flow control solenoid. And like you said, since you have to install the flex fuel sensor before entering the rail, it might be a restriction of the fuel system unless you run parallel.
  3. By setting up the secondarry injection staging table, using Sec/Pri flow ratio in staged injection control you get a pre-calcuated E%. It would be the same if I put the E85 in the second tank... Unless the second fuel has the same stoich ratio as the main fuel.
  4. Hello folks, Sicne the gas stations here don't sell E85 so I am trying to build a Subaru STi with a dual fuel system. The main goal is to have good street drive-ability (by using ID1050x injectors as main injectors) and E98 power on demand, anytime I want. HP goal is around 800~850whp. Turbo is going to be either EFR9180 or Precision 6870... Here is my plan; There are going to be 2 sets of fuel rails, total 8 injectors, one fuel system for gasoline and the other for pure ethanol. Primary fuel system - ID1050x *4, one rail for each bank, feed by an AEM320 pump thru stock gas tank, fuel is RON98 Secondary fuel system - ID2000 *4, one rail for each bank, feed by a huge in-tank brushless fuel pump thru a E100 fuel cell. (or a lift pump + in-line pump) I wanted to adjust the E% by different boost level. EX; below 1.5bar of boost - RON98 - using primary fuel system only 1.5~2.0bar of boost - E50 - using both primary and secondary fuel system above 2.0bar of boost - E100 - using secondary fuel system only In the mean time, I want to still retain the wideband closed loop lamdba control in auto mode. With two different VE & IGN maps, ramping by a multi fuel blending ratio, and using staged injection. Is it possible by using the G4+ Thunder? If I use "modled - multi fuel" equation mode I can't set the parameters of the secondary fuel system. The "multi fuel" injection parameters seems only correspond to the one(main) fueling system. Since I am a local Link ECU dealer I really want to finish this project by using LinkG4+. Don't really want to switch to syvecs or motec. Please help! Thanks, Mike Taipei, Taiwan
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