[Fot] Got a problem with the race car, need advice

[WILLIAM TOBIN]

  I don't know much about the PI, but I had the same problem a while ago
with carbs and it was fuel related.
  Does the PI have any kind of filter or screen in line? Could it be debris
in the fuel system or a partial clog?
  Are you running braided lines?  They can deteriorate inside. Do you run a
pressure gauge and if so, what does the presure do? What happens if you
switch off the fuel pump (I'm assuming it's electric) for a couple seconds ,
then switch it back on?
  A wise man once told me that about half of ignition problems were actually
fuel related. Or maybe it was the other way around; I'm getting old and
sometimes forget! Either way, check all possibilities.
  Good luck, Bill----- Original Message -----
  From: "Chuck Arnold and/or Kathleen Kelley" <triosan at gmail.com>
  To: "Friends" <fot at autox.team.net>; "Triumph" <6pack at autox.team.net>; "TR
list" <triumphs at autox.team.net>
  Sent: Monday, March 22, 2010 12:35 PM
  Subject: [Fot] Got a problem with the race car, need advice


  > I have a petrol injected TR6 race car.  It has a Pertronix distributor
  > [the whole distributor, not just the points replacement in a stock
  > dizzy].  I also have a Crane ignition.  First time out with the car
  > this year.  Drove a few sessions Friday, then more on Sunday.  First
  > two runs Friday went OK as far as the engine goes [had suspension
  > issues, but worked those out].  The third session was longer, and over
  > the course of it the car started to cut out under WOT at about 4500 to
  > 5500 RPM.  It did not do this always, but most of the time.  The tach
  > would swing wildly.  It felt a little like a rev limiter [which is
  > setto 7000 RPM],but only for an instant.  I did some investigating and
  > found that I did not have the distributor fully locked, and it had
  > "walked" to quite far advanced.  I though putting it back to where it
  > belonged would fix the issue.  IT did not.  At the Sunday event it
  > just got worse, so I only got one long session in.
  >
  > So, I beleieve there is a problem with either the Pertronix or the
  > Crane.  I am asking for advice from all the TR groups I belong to.
  > What do you think, and how should I diagnose it?  I do have a dual
  > point Mallory dizzy I can install -- but may have no way to check out
  > if it helps until race day.
  >
  > OR, do any of my Seattle area race buddies know of a road I could run
  > a couple of test on [6K in second will do it] \!
  >
  > Thanks,
  >
  > Chuck
  >
  > --
  > Chuck Arnold and Kathleen Kelley
  >
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