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Thread: Base fuel Pressure?

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  1. #1

    Base fuel Pressure?

    Anyone know what the base fp is for the 7g? I am going turbo very soon, with a 2g eclipse ecu swap and don't want to run overly rich. Also, does anone know if a 2g eclipse fpr will fit the galant rail?

  2. #2
    You are here entirely tooo much!! seth98esT's Avatar
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    2g Eclipse ECU is set for 43.5psi. If you use a 2g ECU you have to do a DOHC headswap, and swap the distributor setup for a coilpack setup.
    7g for life!

  3. #3
    Experienced TGC Member DryBear's Avatar
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    38psi at idle w/vacuum
    47-50psi at idle without/vacuum
    (According to Mitchell On-Demand)

  4. #4
    You are here entirely tooo much!! seth98esT's Avatar
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    Yeah 2g ECU is 43.5psi w/o vacuum, 38psi with vacuum.
    7g for life!

  5. #5
    Quote Originally Posted by seth98esT
    2g Eclipse ECU is set for 43.5psi. If you use a 2g ECU you have to do a DOHC headswap, and swap the distributor setup for a coilpack setup.
    I am not doing the dohc swap, but am swapping over to a 4g64 spyder cam sensor setup.....cas housing, cam cylinder (piece that the cas reads).

    I was looking for the base fp of the galant, not the 2g eclipse

  6. #6
    You are here entirely tooo much!! seth98esT's Avatar
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    Ah yeah, I remember, let us know how that goes, will be interesting to see how well it works.
    7g for life!

  7. #7
    Quote Originally Posted by seth98esT
    Ah yeah, I remember, let us know how that goes, will be interesting to see how well it works.
    I don't see why it won't run flawlessly. The spyder guys seem to do the ecu swap without a problem. We have the same cam and head as they do, so it "should" all bolt on. Then a little re-wiring

  8. #8
    You are here entirely tooo much!! 4-G-rim's Avatar
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    Base fuel pressure on a stock 7g is 47.6 psi.

    A 2g turbo FPR will fit on a stock 4g64 fuel rail...thats what I am running on my setup.

    1991 Galant VR4 1948/2000_________1996 Galant "S" 5 speed 2.4L turbo

  9. #9
    You shouldn't need to swap fpr's. I am running the stock one and it works perfectly at 10 psi with 450s.


    222whp/250wtq

  10. #10
    Senior Moderator DOHCstunr's Avatar
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    if you are running a 2g ecu, run a 2g regulator.
    you will have the proper base pressure for the stock fuel maps and stock injectors.

    you won't need to tune a thing. unless you are running larger injectors
    ______________________________

    1994 Galant GS-Turbo

  11. #11
    Quote Originally Posted by DOHCstunr
    if you are running a 2g ecu, run a 2g regulator.
    you will have the proper base pressure for the stock fuel maps and stock injectors.

    you won't need to tune a thing. unless you are running larger injectors
    Thats what I was thinking.

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