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Help on Fuel Management on SOHC motor

Discussion in 'Forced Induction' started by gettocrx, Feb 12, 2004.

  1. gettocrx

    gettocrx Member

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    Hey again! I'm planning to go with bigger injectors on my SOHC CRX DX with si head thats boosting 5 psi with a garret t3. I have a MSD high flow fuel pump with a 8:1 FMU. I was told that the 1st gen DSM 450cc stock injectors will work. What will I need, in order to run these injectors?? I also want to boost a little higher. What would be safe?? (thinking of 7psi)
    Thanks again for all your help! :D
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    you got some facts mixed up.

    if you are using an FMU, you use stock injectors. at most, 310's.

    dsm 450s will flood.

    if you want to go a little higher in the boost, throw out the fmu and missing link, and pick up an AFC controller, and run the "hack".
     
  3. gettocrx

    gettocrx Member

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    so if I get a safc. I wont need the fmu or missing link? so stock injectors will do fine for 7 psi??
     
  4. Loco Honkey

    Loco Honkey Banned

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    No. This is what you need: AFC, 450cc injectors, high flow (not high pressure) fuel pump- either in tank or in line, and maybe a 1:1 FMU just to be safe. If that's too much fuel, you can always trim it back using the AFC.
     
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