[F500] The "REAL" Fmod tour event.

[Richard W Schmidt]

----- Original Message -----
From: "James F. Libecco, MD" <jfl at neoucom.edu>
To: "Madurski, Ronald M." <RONALD.M.MADURSKI at saic.com>
Cc: <f500 at f500.org>
Sent: Monday, July 01, 2002 12:15 PM
Subject: [F500] The "REAL" Fmod tour event.


> Past weekend was fairly embarrasing for the F500 crew.  Jeff Blumenthal,
> Christina Libecco, and myself were the only F500 in the Fmod group, made
up of
> about seven or eight other solo vee's.  Jeff was the fastest of the F5's,
but
> neither car was fully up to the game.  Jeff is still trying to fight some
> random carb problem that somewhat defies logic resulting in him aborting
> several of his runs on saturday.  He came back sunday and ran within a
second
> of the fast time of the day from the report I received, as I only got to
run
> on Saturday secondary to work conflicts.  (Nothing like twelve+ hours
drive to
> run for four minutes...hmm, finishing that SCCA license gets more
appealing.)
>
> Saturday we got spanked by Scott Nardin, who has been extremely fast in
> everything he has touched this year.  Thankfully Jeff was able to come
back on
> Sunday with a little better show.  Christina was the fastest of the ladies
> classes, but big blisters on the palms from too much steering effort did
her
> in.  I...just can't seem to drive.
>
> Too bad more of you didn't make it down, it was a very fun, very fast
track.
> We should have hope for nationals if Jeff can figure out why his EGT's get
> LOWER when he leans out the jet settings...I'll let him worry about
explaining
> that one.

I'll let you take advantage of my last years learning experience - for free!
I had the same problem ever since I put 38MM carbs on my Kawasaki. Darnes't
thing I ever saw, the left  EGT down about 1000 and the right up at 1300.
Kept putting smaller and smaller jets in the left, and a little bigger in
the right. No good. Finally got to talking to a guy at work who used to race
Kawasaki's and he said that I am on the wrong side of the EGT temp/jet size
curve. After a lot of work, I got a dyno hooked up and started working on
the EGT problem. Ended up going up about 100 points on the left, (310 to
410) and from 380 to 420 on the right. The one cylinder was pulling the
other along. Putting smaller jets only gets you down on the left side of the
curve. (no power) If it was a single cylinder engine, it would not even run!


> Jim-I hate overdriving and solo vee's, too-Libecco
>
> PS Ron--you will really need to get in touch with a tire pyrometer.  A
half or
> quarter degree of camber makes a huge difference in handling for both solo
and
> road.  Right now it seems most are between 1.75-2.5 degrees depending on
car,
> tire pressure, and driving style.
>
> >