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  1. Thread: F500 carbs

    by Richard-6
    Replies
    85
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    25,164

    GCR change

    Does anyone know if the SCCA CRB agrees the change the wording as proposed, can the change be implemented this year?

    I seem to recall that the Board Of Directors once said that they would not...
  2. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    Scott, I think that this last suggestion is...

    Scott,

    I think that this last suggestion is good. However I am no longer a SCCA member so I will not be submitting a rule change even though it is a good idea.

    Richard

    P.S. I already had the...
  3. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    Just for you Clint, ...

    Just for you Clint,

    https://leadersrpmshop.com/ski-doo-new-oem-engine-593-hoe-400604029/?gclid=EAIaIQobChMIjuK0-J7z5gIVhcDACh1g3wrMEAkYASABEgKImvD_BwE

    And here:...
  4. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    I really doubt that your are sorry with the...

    I really doubt that your are sorry with the language that follows the "I am sorry"

    Richard
  5. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    First of all, the way the F440 started and then...

    First of all, the way the F440 started and then transitioned into the F500 was that it always used the snowmobile CVT clutch/gearing system. And all was well in the world.

    Then, about 7 years ago,...
  6. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    So you're suggesting that the 2 cycle guys use a...

    So you're suggesting that the 2 cycle guys use a single speed vs the 4 cycle Close-ratio six-speed ?

    Doesn't sound like a fair fight to me.

    Richard
  7. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    Tom - I believe you are correct in that...

    Tom - I believe you are correct in that assumption. The rule states "the jets will not be driver adjusted". Doesn't say that they can't be auto-adjusted by a mechanism.

    However, as I understand...
  8. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    OK, I agree with you about the Power Commander...

    OK, I agree with you about the Power Commander not doing fuel to air adjustments in real time.

    However the ECU coupled with the Power Commander does give the 4 cycle engine an advantage over the...
  9. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    Carbs and EFI

    Why are you yelling?



    Now there you go again, you don't know what I know or don't know. Implying that I am not as intelligent as you puts this discussion on a whole different level.

    Richard
  10. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    Well that may or may not be true. Your team may...

    Well that may or may not be true. Your team may not be using the closed-loop system but it certainly is available for the Honda CBR600RR.

    Did a little studying up on the Honda CBR600RR and the...
  11. Thread: F500 carbs

    by Richard-6
    Replies
    85
    Views
    25,164

    F500 carbs

    From the 2020 GCR
    9.1.1. Formula 500 (F500) Specifications
    14. Snowmobile Derived Engines
    A. Carburetors: The induction system is restricted to two (2) 38mm Mikuni VM 38 round slide carburetors...
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