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  1. #1

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    need help adjust my fuel ratio

    my setup is the riva stage 3 with a et 137 +4

    riva fuel regulation with a afr

    my last test was 42 on my fuel regulator

    idle 11.4
    cruising 12
    top speed 12

    need help
    rxt 2005


  2. #2
    Eric Ocman's Avatar
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    Quote Originally Posted by philon18 View Post
    my setup is the riva stage 3 with a et 137 +4

    riva fuel regulation with a afr

    my last test was 42 on my fuel regulator

    idle 11.4
    cruising 12
    top speed 12

    need help
    rxt 2005
    are u using the boost reference line?

  3. #3

    Join Date
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    Location
    canada
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    im not shure wath is the reference line

    i take my vacum with the tube on my throttle body
    i cut the oem tube and i use it for my fuel regulator

    sorry for my english im a french guy

    Quote Originally Posted by Ocman View Post
    Quote Originally Posted by philon18 View Post
    my setup is the riva stage 3 with a et 137 +4

    riva fuel regulation with a afr

    my last test was 42 on my fuel regulator

    idle 11.4
    cruising 12
    top speed 12

    need help
    rxt 2005
    are u using the boost reference line?

  4. #4
    Eric Ocman's Avatar
    Join Date
    Aug 2008
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    Quote Originally Posted by philon18 View Post
    im not shure wath is the reference line

    i take my vacum with the tube on my throttle body
    i cut the oem tube and i use it for my fuel regulator

    sorry for my english im a french guy

    Quote Originally Posted by Ocman View Post
    Quote Originally Posted by philon18 View Post
    my setup is the riva stage 3 with a et 137 +4

    riva fuel regulation with a afr

    my last test was 42 on my fuel regulator

    idle 11.4
    cruising 12
    top speed 12

    need help
    rxt 2005
    are u using the boost reference line?
    Cap your're throttle body line off, there are little runners on your stock plastic intake (they are very small) take a drill bit and drill through one of them until the bit goes through then connect your reference line to it. You want the vacuum going to your fuel regulator. It will lean your idle and midrange some. The runner you want to find is on the side of the intake closest the fuel tank. If I find a picture I will post it.


    Try that are report back the results.

  5. #5

    Join Date
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    thanks for your help
    ''merci pour ton aide''
    tomorrow i will do some test with your trick


    Quote Originally Posted by Ocman View Post
    Quote Originally Posted by philon18 View Post
    im not shure wath is the reference line

    i take my vacum with the tube on my throttle body
    i cut the oem tube and i use it for my fuel regulator

    sorry for my english im a french guy

    Quote Originally Posted by Ocman View Post
    Quote Originally Posted by philon18 View Post
    my setup is the riva stage 3 with a et 137 +4

    riva fuel regulation with a afr

    my last test was 42 on my fuel regulator

    idle 11.4
    cruising 12
    top speed 12

    need help
    rxt 2005
    are u using the boost reference line?
    Cap your're throttle body line off, there are little runners on your stock plastic intake (they are very small) take a drill bit and drill through one of them until the bit goes through then connect your reference line to it. You want the vacuum going to your fuel regulator. It will lean your idle and midrange some. The runner you want to find is on the side of the intake closest the fuel tank. If I find a picture I will post it.


    Try that are report back the results.

  6. #6
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    WAIT...do not drill any holes....Are there any holes on the front of your IC block off? There should be, put a fitting there and refrence that locations. Its more accurate...

    What size injectors? 50's?

    Your numbers...

    idle 11.4
    cruising 12
    top speed 12

    ARE ALMOST PERFECT....maybe a just a jump in base pressure, from 42 to 44...


    Also, what size air intake are you running? Riva intake? 4" kanaflex? What IC?

  7. #7

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    canada
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    4 '' riva intake and a riva gen 3 intercooler and 50 lbs bosh injector

    Quote Originally Posted by Danny View Post
    WAIT...do not drill any holes....Are there any holes on the front of your IC block off? There should be, put a fitting there and refrence that locations. Its more accurate...

    What size injectors? 50's?

    Your numbers...

    idle 11.4
    cruising 12
    top speed 12

    ARE ALMOST PERFECT....maybe a just a jump in base pressure, from 42 to 44...


    Also, what size air intake are you running? Riva intake? 4" kanaflex? What IC?

  8. #8
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    Quote Originally Posted by philon18 View Post
    4 '' riva intake and a riva gen 3 intercooler and 50 lbs bosh injector

    Go from 42 to 44, see what happens......dial in your top speed AFR's to 11.9-12.0....

    What is your top RPM? What is the REV limit?

  9. #9

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    Rev limit 8600rpm
    Max rpm 8600rpm

  10. #10
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    44, see where you sit.....Your are looking good as it is!

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