Ferrari Mailing List: Re: High Speed Experience in C5 Vettes...Fw: ORR Video

[robert_h_bowser [at] juno.com (robert_h_bowser]

Lash -

The only thing I've had to add (other than safety equipment) to my Z06 is a 
transmission oil cooler.  The tranny sits in a well with CATs on either side.  
So it gets very hot at speed.  Mine would overtemp if I ran more than 130mph 
for over 20 minutes.  GM offers a kit in its performance catalog.

Strongly suggest getting a roll bar.  I got mine from Autopower here in San 
Diego.  And of course a racing harness, fire suit, etc.  Most events have a 
list of required equipment that varies with the speed class.

Bob

-- LS <lashdeep [at] yahoo.com> wrote:
Bob, I'm enjoying the thread on your ORR experiences. I hope to be able to do 
that one day soon.
Due to your considerable high speed C5 experience in competitive events, you 
are probably the right person for my friend Hamid to talk to.
He just bought a 98 C5 coupe (hatch) and wants to do some upgrades for open 
track, high speed driving.
Is there a checklist of mods that you would do? Also, what order would you 
tackle things?

Thanks,
LS

----- Forwarded Message ----
From: Hans E. Hansen <FList [at] hanshansen.org>
To: LS <lashdeep [at] yahoo.com>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Sent: Wednesday, April 30, 2008 4:38:21 PM
Subject: Re: [Ferrari] ORR Video

How do you obtain "track knowledge"?  I mean, w/o a high speed pre-run,
it would seem awful easy to mess up on a corner that was a tad sharper
than you thought.

On a related note, how fast (slow) are the slowest corners?  How fast
do you have to go to make up for the slower sections?

100K - that's pretty good.  If you have not already, give the wheel
bearings a good look - especially the rears.  A friend used to rent track
time for his C5 on the higher speed tracks like Daytona.  After only
5k miles, the rears were dangerously shot.  Like 2" - 3" freeplay at
the rims.

Hans.

On 4/30/08, robert_h_bowser [at] juno.com <robert_h_bowser [at] juno.com> wrote:
> No, I just look around for anything that doesn't look right.  I drive it 1000 
> miles just to get to the race, so I figure that if anything is amiss, the car 
> will let me know before I get there.  I've driven it over 100K miles, so I 
> know pretty well how it is supposed to feel.
>
> Bob
>
> -- LS <lashdeep [at] yahoo.com> wrote:
> Indeed, just being facetious about the belts and coil springs Hans...
> Bob, do you check torque on all chassis bolts or just for tightness?
> Also, how do you assess any stress fractures or fatigue in metal?
> I remember that the Porsche 917-30 had a gas charged frame...a simple check 
> valve and gauge rendered the frame usable or not.
> LS
>
>
> ----- Original Message ----
> From: Hans E. Hansen <FList [at] hanshansen.org>
> To: LS <lashdeep [at] yahoo.com>
> Cc: The FerrariList <ferrari [at] ferrarilist.com>
> Sent: Wednesday, April 30, 2008 12:00:15 PM
> Subject: Re: [Ferrari] ORR Video
>
> Timing belts?  This is a pushrod engine.  Short little chain driving
> the one and only cam.
>
> Hans.
>
> On 4/30/08, LS <lashdeep [at] yahoo.com> wrote:
> > Bob, this is awesome!
> >
> > Please tell me what your pre-race prep involves. What do you check? Timing
> > belts? Coil springs? :)
> >
> > LS
> > --- "robert_h_bowser [at] juno.com" <robert_h_bowser [at] juno.com> wrote:
> >
> > > Paul -
> > >
> > > Actually, it is pretty noisy at speed, but mainly road noise.  I've
> > > retained the stock exhaust system, as I drive it to and from the races
> > > and prefer to be able to listen to the stereo.  But up at 160, we have
> > > to yell to be heard.  The older Z06s like mine have minimal sound
> > > insulation.  Depending on the surface, road noise can be a problem.
> > >
> > > I have a GPS installed to get accurate speed readings, but the timing is
> > > all done with stopwatches.  We survey the course using a GPS, create
> > > course notes based on the GPS readings and then a handheld stopwatch to
> > > calculate the difference between actual and theoretical time.
> > >
> > > Speedo on the Corvette is fairly accurate.  Indicated 160mph is actually
> > > 163mph (measured by the GPS).
> > >
> > > Bob
> > >
> > > -- Paul Bennett <pbennett [at] macnet.com> wrote:
> > > Thanks for Utubing that.  Your car is amazingly quiet - virtually no
> > > engine/exhaust noise and little road noise.
> > > The road looked hypnotic at that speed.  What was the car spacing?
> > > And was the timing (called out by passenger) by GPS?
> > >
> > > >I ran the Corvette in the Big Bend Open Road Race last weekend.  The
> > > race runs from Fort Stockton to Sanderson in West Texas.  Got a first
> > > place finish in the 145mph class, averaging 145.009mph over the 118 mile
> > > course.  Dodging deer, buzzards and wild pigs.  Only vaporized one small
> > > bird, and a bunch of bugs.
> > > >
> > > >Just for fun, I uploaded a video of part of the race onto YouTube.  If
> > > anyone is interested, the URL is:
> > > >
> > > >http://www.youtube.com/watch?v=9vdapNrApM4
> > >
> > >
> > >
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