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  1. Thread: F500 carbs

    by Dan McMahan
    Replies
    85
    Views
    25,007

    Where is the argument? I just made a statement...

    Where is the argument? I just made a statement that I no longer have to deal with carbs. Just my preference with no push on anyone to change over. I would like to see the 493/494 get on par with the...
  2. Thread: F500 carbs

    by Dan McMahan
    Replies
    85
    Views
    25,007

    No longer have to do that.............Bike motor.

    No longer have to do that.............Bike motor.
  3. Thread: F500 carbs

    by Dan McMahan
    Replies
    85
    Views
    25,007

    When we were running 2 stroke, I went to grid...

    When we were running 2 stroke, I went to grid with a jet card in one pocket and an air density meter in the other. Not unusual to be changing jets at the 5min. We smoked quite a few, if you aren't...
  4. Thread: oil cooler

    by Dan McMahan
    Replies
    16
    Views
    12,510

    Ditto, no issues with -8.

    Ditto, no issues with -8.
  5. Thread: oil cooler

    by Dan McMahan
    Replies
    16
    Views
    12,510

    Oil Cooler Block Plate

    If you are running the stock filter with NO adapter, and plumbing the external cooler directly from the oil galleries, it needs to be a block off. If you are using an adapter and remote oil filter...
  6. Thread: F500

    by Dan McMahan
    Replies
    116
    Views
    138,267

    To stay on topic, I will agree that two stroke...

    To stay on topic, I will agree that two stroke may well fade away.
  7. Thread: F500

    by Dan McMahan
    Replies
    116
    Views
    138,267

    Enough 4stroke vs 2 stroke

    When are we going to talk about the disparity the 593 and the rest of the Rotaxes? My research tells me it's the dominant 2stroke.
  8. Replies
    34
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    16,080

    A claiming rule was on the survey that was sent...

    A claiming rule was on the survey that was sent out by the adhoc committee. It had a pretty unanimous thumbs down in the survey.
  9. Replies
    12
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    17,246

    They are holding their breath till the 4 strokes...

    They are holding their breath till the 4 strokes go away ;)
  10. Replies
    1
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    4,955

    http://www.formula500.org/viewtopic.php?f=96&p=336...

    http://www.formula500.org/viewtopic.php?f=96&p=33693#p33693
  11. The sound limit was the same as we have had all...

    The sound limit was the same as we have had all year, the problem was the location of the meter. It was track right as well as being directly opposite a bluff; an absolute worst case. The straw that...
  12. Replies
    43
    Views
    17,771

    sound

    First of all, Clint had the brake problem on the first test session. The throttle sticking came after he found the gravel trap at the corkscrew. I had to rework the throttle stop to cure the problem....
  13. tire compound

    It's my understanding that some sanctioning bodies have kept older chassis competitive by mandating a spec tire that is a hard compound. If so, that would be two positives; longer tire life and...
  14. Replies
    6
    Views
    2,585

    race2 qual from live timing

    Clint McMahan 1:29.489
    Cal Stewart 1:29.691
    Brian Novak 1:30.247
    Matt Strand 1:33.119
    Hunter Brayton 1:33.744
    Craig Laprade 1:37.102
    Ryan Barth 1:39.723
    Carl Maier 1:42.709
    Brandon Reed...
  15. Replies
    6
    Views
    2,585

    Race 1

    Clint McMahan
    Matt Strand
    Craig Laprade

    Brian Novak was making a run to the front but went out 4 laps in. Don't know what happened.
  16. Replies
    30
    Views
    7,361

    M-O Results

    https://www.race-monitor.com/Results/Race/18533



    Sorted by Best Time
    FV Practice 1

    Results are not official
    1 #25 Andrew Abbott
    Best Lap Best Time Diff Gap
  17. Replies
    6
    Views
    2,585

    Mid Ohio Pro

    Sorted by Best Time
    F600 Practice 2

    Results are not official
    1 #07 Calvin Stewart
    Best Lap Best Time Diff Gap
    10 01:29.389
    Novi MI
    2 #36 Clint McMahan
    Best Lap Best Time Diff Gap
  18. Replies
    8
    Views
    6,518

    Randy Pobst

    I always read his section first, not only a good read but there is always something to learn from him there.
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