Ok, here is a setup I did for the F2 BRM that comes as close to the
Cobra as I can with a GPL car.
I filled it up with fuel to get closer to the weight of the Cobra. I
set the spring rates, camber, tire pressures, differential, anti-roll
bars (i.e. none) and other parameters as close as I could get to the
Cobra.
I had to fudge a little on the dampers to get the car's balance to be
reasonably correct; in reality the Cobra has identical spring/damper
units front and rear. This is probably because the BRM's weight bias is
a little more rearward, at 64% on the rear wheels as compared to the
Cobra's 55% rear.
The F2 BRM set up this way is lighter and more powerful than the Cobra;
our car has about 240 hp and weighs about 2400 lbs, while the BRM has
about 275 hp and weighs 1837 lbs. Also the BRM probably has
significantly less drag, due to lower frontal area; the Cobra's street
windshield is like a giant barn door.
So, even though the Cobra's tires (shaved and heat cycled Kumho Victo
Racer DOT-legal racing radials) are probably superior to the 1967 F2
race tires, I would guess that this car is probably somewhat quicker in
terms of overall lap times than the Cobra is in real life.
Even so, this should give you a fairly good idea of what it's like to
drive the Cobra, especially if you substitute some nice robust American
V8 engine sound for the F2 engine sound in GPL. Compared to GPL's F1
and F2 cars the way they are normally run, this setup will feel slow on
acceleration, but believe me, in real life it feels anything but slow!
Nate and I ran the Cobra at Lime Rock this past Friday, and we had a
fantastic time. The car feels and sounds absolutely awesome. Brakes
are good, handling is precise with very good balance. Acceleration is,
um, how can I say, very gratifying. Afterwards, Nate said it is "the
perfect car".
Due to a road mishap on the way, we got to the track late and wound up
in the slowest run groups, so most of our track time turned out to be
"passing practice". This can be very frustrating, because the club's
rules require you to get a "point-by" from the driver being overtaken
before you can pass, and sometimes the other drivers are not very good
about watching their mirrors. We both spent a lot of time following
slower cars around.
Still, there's something ego-gratifying about being the fastest car on
the track, passing everything in sight. Toward the end of the day, we
found out that the optimum passing technique was to fill the slower
car's mirrors, after approaching with a very high closing rate. This
got their attention and generally got a quick point-by.
Nate is closing the gap on me, too. My best time was a mid 1:09, and
Nate's best lap was just a second slower. I think I need to practice
more!
Alison
>>> where can I download it ?
>>> I keep clicking on the pictures but
>>> the car simply did not download...
>>Uhhh, I hope you do realise it's a real car?
>Yeah that is unfortunate :) Why can't Alison develop a Cobra for use
>in GPL?
Alison
--- In loving memory of Kathi Simpson ---
http://eaglewoman.maximumspeed.com
http://gpl.gamestats.com/vroc/