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subarujim01

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About subarujim01

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  • Location
    Tucson, AZ
  • Referral
    searching for subaru brat information
  • Biography
    I have been a Subaru owner since in purchased the Brat in 1978.
    it was a daily driver until I relocated to AZ in 1989 (no AC)
  • Vehicles
    Subaru brat 1978, subaru baja 2005

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  1. subarujim01

    adding fuel injection to Ea71 1978 Brat

    Ok will do and thanks for the help and attention
  2. subarujim01

    adding fuel injection to Ea71 1978 Brat

    I talked to the Holley expert and the answer was YES the ECU is capable of metering down to very small flow rates and controlling the 1.6l 4 cyl engines As an example he said some large engines like my 1973 dodge 440 motorhome at idle low RPM's only require about 2-4 lb/hr. The ECU adjusts out the injector bounce to compensate and fine tunes the flow resolution. He also indicated the system is being used successfully on 1.9 l VW Wasserboxer engines the air-cooled 1.6l boxer as well as the small BMW's. So my puling the trigger maybe closer. Now I can look at the fuel delivery systems what makes the most sense. Fitech's command center, edelbrocks efi external sump tank system, or Holley's in-line system and see how to add a return fuel line. I will need to look at the spare fuel tank I have to see will work best.
  3. subarujim01

    adding fuel injection to Ea71 1978 Brat

    Thanks I am calling them now. any info on the valve question? I have not been able to identify by any numbers on the block just what year the engine was built.
  4. subarujim01

    adding fuel injection to Ea71 1978 Brat

    I have another question? Can anybody tell me exactly when Subaru (in it's wisdom) switched the Valve design of the 1.6l engine from the Manually adjusted valves found on my original engine to the Self adjuster type found on the 3rd used engine I got in 1993 to replace the 2nd one with. the old engine design required constant adjustments and if not done resulted in major problems. Back in 1982 a shop wanted over $2000.00 to rebuild original, but back than I found I could get used engines from Japan for as little a $145.00 so it was easer to just replace the short blocks.
  5. subarujim01

    adding fuel injection to Ea71 1978 Brat

    I pulled up the full Holley manual to see what the different Ecu setting and possible modifications would be page 65 talks about the fuel injector flow but indicates it can not be changed. except it indicated that the ecu internally adjusts it based on the engine displacement. which seem the indicate that it could work on the 1.6L engine I have in my 1978 Brat. https://documents.holley.com/techlibrary_199r11321.pdf The weber adapter plate will work just fine with the Holley. I really do not like the idea of cobbling together a bunch of modifications. If I wanted to do that I could get a complete 1.8L or 2.0l EFI crate engine and modify the extra engine support member I have laying around. as well as the extra gas tank I have to set up the return fuel line and install the in tank fuel pump. I did not get a chance to call Holley yet and speak with them about the injector variability but will do as soon a I can .
  6. subarujim01

    adding fuel injection to Ea71 1978 Brat

    Thanks that adds some clarity. I will talk to Holley about possibility of changing the injectors to better match , that is if the onboard ECU can not adjust the injectors. Depending on the cost it would than make the system they have really adaptable for a wide range of applications. If Holley can not/will not work with me, than maybe the link you added (thanks) will point me to the right person/company to help out. either way it seems like an better way to go then modifying the Subaru FI system I have.
  7. subarujim01

    adding fuel injection to Ea71 1978 Brat

    I currently have the engine pulled to replace the clutch and it seems like a good time to do some updates
  8. subarujim01

    adding fuel injection to Ea71 1978 Brat

    yes here is the link I have https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_2300_2bbl/sniper_2300_2bbl_master_kits_with_fuel_system/parts/550-849K not sure about the issue about how it would be running rich all the time as the system has an internal fuel regulator. according to Holley. I have considered using a Subaru fuel injection system that I pulled off a 1.8 l engine but that presents a host of problems also
  9. subarujim01

    Retrofitting FAQ

    I am considering adding a fuel injection system to my 1978 brat with a EA71 engine. Holley has a new 2bbl EFI kit available "Holley Sniper EFI 2300 self-tuning master kit", with a adapter plate that will fit unto the Weber plate I added when I upgraded to that from the orginal carburetor. Has any one tried this already? If so what issues did you run into. I have added a AC system the Brat but when I tried to use it last summer here in Tucson the current draw on the engine is too much , unless I change the electric chock to a manual unit on the weber carb.
  10. I am considering adding a fuel injection system to my 1978 brat with a EA71 engine. Holley has a new 2bbl EFI kit available "Holley Sniper EFI 2300 self-tuning master kit", with a adapter plate that will fit unto the Weber plate I added when I upgraded to that from the orginal carburetor. Has any one tried this already? If so what issues did you run into. I have added a AC system the Brat but when I tried to use it last summer here in Tucson the current draw on the engine is too much , unless I change the electric chock to a manual unit on the weber carb.
  11. some pic's of my 1978 brat. I am bought new in 1978 and bought the book end 2005 Baja for the wife in 2016
  12. subarujim01

    My 78 BRAT project....

    Did you get the fuel issues worked out? I added a second fuel pump and the vapor system from my 1982 donor brat. It included the vapor separators to get the weber carb to play with the rest of the system. The only issue I have now is sometimes it runs rich so have added a switch to shut off the forward engine compartment fuel pump.
  13. subarujim01

    My 78 BRAT project....

    I also have a 1978 gen 1 brat owned since it was new in 1978 and have enjoyed it thru the years, it's bullet proof. the issue you are having with the starting seems the be part and parcel of the weber carb design I started having the problem when I replaced the original Hitachi carb (tended to develop vacuum leaks. Replaced it with the same carb you have i still have the elect chock on it though. Had to finally get it adjusted but a mech who has the old emissions testing (tail pipe)equip. Runs great since then, except when I let it sit too long and it's cold. Then I have to use either and spray the carb to get it to start. As long as I do not let it set for more than 2-3 weeks it starts right up in the morning. I also have recently added an AC system (needed here in Tucson) I have had wiring issues since installing it but getting it worked out. Had you made sure that you do not have some of the original brat wiring connectors hooked up (do not need or want) the wire for the anti dieseling switch tied to anything And hopefully you have the vacuum line fittings that are not needed with the Weber carb sealed off.
  14. I also have a 1978 gen 1 brat

    owned since it was new in 1978

    and have enjoyed it thru the years, it's bullet proof.

    the issue you are having with the starting seems the be part and parcel of the weber carb design

    I started having the problem when I replaced the orginal Hitachi carb (tended to develop vacumn leaks.

    Replaced it with the same carb you have i still have the elect chock on it  though.

    Had to finally get it adjusted but a mech who has the old emissions testing (tail pipe)equip.

    Runs great since then, except when I let it sit too long and it's cold.

    Then I have to use eather and spray the carb to get it to start.

     As long as I do not let it set for more than 2-3 weeks it starts right up in the morning.

    I also have recently added an AC system (needed here in Tucson)

    I have had wiring issues  since installing it but getting it worked out.

     Had you made sure that you do not have some of the orginal brat wiring connectors hooked up (do need /want) the wire for the anti dieseling switch tied to anything And hopefully you have the vacumn line fittings that are not needed with the Weber carb sealed off. 

     

     

     

     

     

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    1. jonpaul03

      jonpaul03

      Thanks for the advice! I have had her running perfectly (900 rpm idle), but she didnt want to run after the accelerator pump and the EGR tube failed. I got her running now, but I still need to set the timing. I cant adjust the carb until I can get her to idle on her own. I get popping in the carb right now....kills the rpms.

       

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