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Track Report
Road America Raceway
Elkhart Lake, WI
April 12-13, 2003
Article, In-Car Videos and Photos by Philip Glazatov
{ Click the image
above to go right to the photos and videos. }
Highlights
Road America is a very cool
track. It is fast and reasonably safe. There are open areas or
sand pits in strategic locations and nice and cushy tire walls
(which saved me once). There are professional safety crews
patrolling the track and flaggers in fireproof suits on every
corner, who watch the cars and signal if problems occur. If
there is a problem with your car a crew will be there to help you in
a few seconds.
The Midwest F-Body Association
and Speed Seekers, LLP
sponsored this very well-organized event. Not too many strict
rules and plenty of track time. The contingent was very
serious. There were 120 cars and virtually all of them were
high-power beasts. Firebirds/Camaros galore, Corvettes,
Mustang Cobras, M3's (those were FAST), Porsches, etc. Even a
Saturn and a Contour, which somehow got there were running very
strong and were hard to keep up with.
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Rich
Merritt, Jon, and Jack T.
I finally met Rich
Merritt. Yes, he is a real person. :-) He does not
look like an old poop either. He is much taller than he
seemed in one of the pictures where I saw him sitting in his
car. I asked how he fits in his VR-4 and he replied that he
goes not fit in the car, puts the car on. He is a real
hardcore driver out there on the track, trying to kill everything
that moves, and usually does.
He is very hyped up about our cars, and rightfully so.
During our driver's dinner he had about 4 glasses of Scotch and we
had to listen to him telling us about our ***AMAZING CARS***,
LOL! The only weak point, according to him, is the
brakes. This is also one of my top priorities now after I
fell flat on my face with babying my brakes trying to keep them
from overheating, not being able to open it wide on straightaways,
having to let people pass me due to that, and still warping the
rotors slightly by midday Sunday.
We met some new 3S people there. A few local guys were
there. Jon from Iowa, Rich's student, was on the waitlist
and could not sign up because the event was all sold out. He
came there hoping to buy someone's track time if their car breaks
down. He was a little chicken to pay half the price for one
day that was offered to him by someone who quit after day one, but
he had no excuses not to buy Jack Tertadian's track time for $20
in the afternoon on Sunday.
Everyone had a great time there. Even Jack T, who ran only
half a day Saturday. He is just as great of a driver on the
open track as he is on the drag strip. He was not relaxing
too much there. He brought an AEM EMS to the track to map it
right there. He managed to correctly diagnose a fuel pump
problem that was happening at 120 MPH. Not many people can
race ahead of the pack at 120 MPH while tuning a brand-new ECU and
diagnosing bugs at the same time.
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Tuning
the Suspension
I left my AEM EMS at
home. I had a JIC suspension there to play with instead, and it
kept me busy most of the day Saturday. I was fighting
oversteer all day. I did not quite figure out my new tires
and new lowered setup with the JIC suspension and spun out the
car in the first session into a tire wall. Click HERE
to watch the crash into a tire wall video... Normally that
would have never happened. The car would have gone
sideways for a split second, I would have applied some gas and
the car would have straightened itself out, just like it did
here:
Sideways
at Gingerman video 4-12-02
But the oversteer was way too severe and I did not have much
power available in 3rd gear, so I could not save it.
Amazing, but here was no damage to the car other than a few
paint chips on the front bumper, which was already banged up
anyway and needed some paint work prior to the event. Even
after two days I could not get that turn #5 right. I think
I should have tried it slower in 2nd gear instead.
After this episode I realized that maybe I needed to spend some
time tuning my new suspension. I had a negative 2 degree
camber all around, JIC in the mid-range front and rear, zero
toe-in, and my tire pressure was 40/38 FR/RR. I ended up
doing a series of small iterations, after which I ended up with
the JIC on full stiff in the front, 3 clicks soft in the rear,
tire pressures 38/32 (when cold), camber or 1.50/2.00 FR/RR, a
little toe-out in the front simply due to changing the camber,
and I completely removed all the spring preload. Springs
are often installed on coilovers with some preload. The
stock front coilovers have a lot of preload. The rears
have very little. I put only about 1/4" of preload on
my springs, but then I realized that with the rear spring rate
of 564 lbs/in a 1/4" of preload is 141 lbs of force.
The inner shocks often extend in the turns fully and become
completely stiff as if there is no suspension out there, which
is not good for traction or handling. After all these
changes I ended up with a great balanced setup where the car was
neutral under partial steady throttle, with a minor understeer
under hard acceleration and a minor oversteer with closed
throttle.
JIC seems like an okay suspension, but I am not convinced yet
that it has a good road racing or street potential. It is
oversprung and underdamped. I did some dyno tests, about
which I will write separately, and they showed that its front
dampers are even softer than the stock "sport"
setting. It felt terrible driving through Chicago northern
districts. The car was rocking back and forth and did not
want to stop. It was much better on the track though. The
car stayed solid flat all the time. That allowed me to go
nuts smoking those tires through the carousel and even toy with
a light trail braking before some turns. Not that it was
faster, but I could do it if I wanted to. The JIC does its
trick with super stiff springs and does not rely on sway bars at
all. It is night and day in comparison to stock, but I
think a softer setup with more damping would have provided more
traction.
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Fun on
the Track
After I fixed all the
steering problems I had a ball! I was able to keep up
with most and pass a few cars. I could make distance on
almost anyone on the carousel and the back straight after the
carousel. However, virtually everyone there was
outbraking me.
I got Rich's friend Beluga, The Great White Whale, killed him
on the back straight after the carousel and turn #11. I
loved that little high-speed kink there. I was going at
100 mph there, squealing tires, scaring my passenger. I
was making 100 ft on him by the end of that straightaway. Even
on the front straightaway I was doing not too bad. I saw him
in the rear view mirror power oversteering coming out onto
that straightaway. Maybe because of his rear end was
stepping out he was not making much distance on me there.
I had my car go 135 mph only once in the front straightaway
and I was not even trying too hard. I was trying to save
the @#$% brakes, therefore I usually went at half-throttle
there and rarely exceeded 120 mph.
I tested new tires too. Flash rented me his wheels with
old 17" Yoko A-032 tires. The tires were worn but
still good for about two track days. Those are not
street tires. They have a treadwear rating of 70 and are
a little noisy on the street. On the track they were
good. They have some extra meat on the outer edges to
allow for extra wear in that area during track use. I
expected them to be a little more sticky, but they were still
very good. They were a little slippery and too quiet for
the first lap, but then they warmed up and worked very well
almost to the end of the event. I had to deflate them a
lot (see oversteer troubleshooting above). They still
worked well at that low pressure with most of the wear still
occurring in the middle. They were still not rolling
over too much. I noticed some tread peeling on three of
them by mid Sunday. I could not use them further because
I had another off-track excursion and broke one of the rims.
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The
Magic Exploding Rim
I never could get
turn #5 right. The same turn after which I spun out
and crashed into a tire wall. This time I went wide,
past the rumble strips (oh, they are hard!), past the little
asphalted section, and with two wheels off into the
sand. That did not feel right. A few feet later
I realized that I had a flat. I pulled over to the side in a
quiet spot and then a flatbed came, loaded me, and took me
to the pits.
In the pits I saw a few strange scuffmarks on the
rims. I thought, well, Flash won't get upset because
now these old rims just looked a little shinier than
before. Then I noticed a lot more scuffmarks inside
the rims, on the lower control arm and on the brake caliper,
which puzzled me more. Was that some rocks that got
stuck between the brake caliper and the rim? Nope, too
many scuff marks to be left by a few rocks. The rim was
round and everything else seemed fine. The outer lip was
intact and the tire beads were seated as normal. There
was nothing except the scuffmarks that indicated a
trouble. Then... I saw a crack! Right near the
weld seam going all the way around the rim where the cast
hub with spokes is welded to the aluminum rolled part of the
rim. The spokes separated from the rim! We
turned the wheel over and found no nipple! It was
gone. But there was no nipple hole there either.
WOW! The rim must have tuned around the spokes!
I gave the wheel a couple yanks and it came apart.
Here is the kicker: the two-piece wheel fell apart while I
was off-roading with my right side for several feet.
During that time I heard several nasty clunks. Then
everything was normal on the straightaway, except in the
next turn I felt that the front tire was losing
pressure. I stopped and only saw a flat. I did
not notice anything unusual. The rim put itself back
together!!! It could not have come off the car because
the cast hub with spokes is larger than the rim's ID.
So it wobbled around the wheel well a little and then worked
its way back on the spokes somehow! That happened so
fast that nobody, not even me, noticed it. I will post
a video of this incident, but I could tell you now that it
is not really spectacular. It looked almost like a
regular two wheels off the track kind of incident.
Now Flash wants me to get him a replacement rim. I
hoped that he would be happy that I broke it for him, found
a "weak link" sort of. Well, he is now
worried about the other three rims but still wants them back
nevertheless, including a replacement for the fourth.
If you could sell me one rim like that, let me know.
It is a 17" chrome 6-spoke 1997 or equivalent 3000GT SL
wheel. It could be ugly as hell, but must be
reasonably round.
Then I mounted a set of my street 18" rims with Kumho
712 street tires that I conveniently took with me. I
was impressed with then for about four laps. After
they warmed up in 1/2 a lap they ran pretty well in
comparison to the special track Yokes. They had
smaller slip angles, less yaw, they held direction better,
steering was faster, crisper and more precise. They
had a little less grip, but still very impressive.
However the street Kumhos overheated after 4 laps and I
could not push them hard anymore. They had at least
20K miles on them and still about 1/2 the tread
left!!! They were the same tires that I had at
Gingerman twice and with which I bought my car two years
ago. They felt great on the way home.
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Final
Thoughts
After driving my
car at 130 MPH for two days straight on a stiff suspension
and negative 2 degree cambers, driving my daily driver,
which I earlier thought had a pretty sporty ride, now
feels like bouncing on an old couch. Yuck!
I am now irreversibly hooked on open tracking. I am
in one the of the last stages of addiction, way past the
point of no return. I look forward to seeing you all
at the track next time!
--- Philip
Glazatov, '95 Stealth RT/TT
Click
here for the Road America photos and videos!
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