rec.autos.simulators

More ICR2 questions

Pasi P Ahopel

More ICR2 questions

by Pasi P Ahopel » Mon, 11 Sep 1995 04:00:00

No curbs, but I still have two questions about ICR2:
1) Does it have the 1.8 mpg fuel limit as real indycar races have?
2) Are the physics more realistic?  In ICR1 the car seems to have
   too much grip in corners and too low top speed in straights.

Pasi.

RickGent

More ICR2 questions

by RickGent » Mon, 11 Sep 1995 04:00:00

No curbs, but I still have two questions about ICR2:
1) Does it have the 1.8 mpg fuel limit as real indycar races have?
2) Are the physics more realistic?  In ICR1 the car seems to have
   too much grip in corners and too low top speed in straights.
<<<

The fuel restriction is a realism option in ICR II.

As for the physics, we've updated it for the '95 engines (Cosworth,
Mercedes and Honda) and the '95 tires (Goodyear and Firestone), and are
working feverishly to get the grip values right. As far as too low a top
speed, I think that has more to do with your car set up than anything
else.

Rick Genter
Technical Lead, IndyCar Racing II/NASCAR Racing for Macintosh/Windows
Papyrus Design Group, Inc.

Robert Berryhi

More ICR2 questions

by Robert Berryhi » Tue, 12 Sep 1995 04:00:00


That all depends on the setup you are using for the car.


Austin, Tx
============================================================
Scott Pruett or Robby Gordon as the 1995 PPG Cup Champion!
============================================================

Terje Wold Johans

More ICR2 questions

by Terje Wold Johans » Tue, 12 Sep 1995 04:00:00

[skip]

Great!!:))

What causes the ICR drivers to have up to 20mph less top speed at the
road courses and the street circuits is the fact that Papyrus has got
the drag/traction/torque/downforce figures wrong. We need much more wing
than the real drivers to get the same lap times. Don't say that we are
bad drivers because with similar wing settings the real drivers would be
far off the pace because the wings would only yield a lot of drag and not
enough traction to balance it out. That a *lot* of wing yields very good
lap times in ICR is a token that something is wrong.

The real IndyCars have 180mph at the end of the back straight at Toronto.
If we opt for 180mph top speed we can't even go through the turns without
crawling around(soft compound), which suggests that the wings give way too
much downforce(sounds contradictory...).  The point is that if the amount
of downforce was plotted on the y-axis and the amount of wing was plotted
on the x-axis the curve would have been hyperbolic(FIG. 1).

max^
   |                        .
 d |                        .
 o |                       .
 w |                      .
 n |                    .
 f |                  .
 o |               .                FIG. 1
 r |            .
 c |       .    
 e |.        
min--------------------------->
   zero wing                max wing  

If the wings yield a lot less downforce and the above curve was linear we would
maybe reach 180 mph at the end of the back straight at Toronto with our current
wing settings and be somehow slower in the turns. This probably would require
that the engines had some more torque in the top half of the power band too.

The bottom line is that the cars have too much drag and too much traction.

-- Terje Wold Johansen   "I am your inferior superior."       --

-- Dept. of Informatics, University of Oslo, Norway             --

G. Warren Ab

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by G. Warren Ab » Tue, 12 Sep 1995 04:00:00

I have even more questions:

1) Will the graphics for rainy conditions be improved?  World Circuit had
simulated spray graphics to simulate rooster-tails of water coming from
the tires, which ICR1 only showed gray roads and dark skies.  (BTW, I DO
like World Circuit's rainy graphics better, to set the record straight)

2) Will there be a pit speed limit?

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Thud '73'

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by Thud '73' » Wed, 13 Sep 1995 04:00:00


   >No curbs, but I still have two questions about ICR2:
   >1) Does it have the 1.8 mpg fuel limit as real indycar races have?
   >2) Are the physics more realistic?  In ICR1 the car seems to have
   >   too much grip in corners and too low top speed in straights.

   >Pasi.

   That all depends on the setup you are using for the car.


   Austin, Tx
   ============================================================
   Scott Pruett or Robby Gordon as the 1995 PPG Cup Champion!
   ============================================================

Yeah, sure, but you still can't pull off the same sort of speeds
that they do in reality.  Elkhart is a good example. In reality
(at least according to the commentators) IndyCars run close to
200 mph on the straights, but still make it out of the carousel
at 150...  Try the same with ICR and you'll find it pretty tough
to hit 190 and make it through the carousel above 120...  Ofcourse
at tracks like Cleveland ICR is totally unrealistic as you can
pile downforce up front and pull every turn at 120+, but only
catch a top-end of 160, and still slash the real laptimes...  It
helps to cut through the pits and mow the lawn as well... ;)
On the ovals you can get better times with more downforce, but less
top-end.  Michigan is the extreme example with 230 in the turns
and 250 on the straights...

The realistic balance of the setups isn't quite right...  A minor
thing compared to the 0 IQ AI... ;)

_________________________________________________________________________


            _/\_                    University of Helsinki
   ________/_\/_\________           Physics/Computer Science
   NIGHTSTALKERS 37th TFW           Web: http://www.helsinki.fi/~reimaa/

IWCC 3: #73 Finlandia - Ford           Internet IndyCar Challenge II:
  Flying Finns Motorsports            Thunder Racing International #73  
-------------------------------------------------------------------------
   "It seems to be easier to go    -V.Adm. Tom Connolly, USN            
    to the moon than it is to get   Deputy Chief of Naval Operations    
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_________________________________________________________________________

RickGent

More ICR2 questions

by RickGent » Wed, 13 Sep 1995 04:00:00

And, to add to this question, will the pit speed limits be realistic
like the real tracks (i.e. no 55mph speed limit at Michigan)?
<<<

It's currently set at 80 MPH. I want to put in variable (per track) speed
limits, but don't know if it'll get in.

Rick Genter
Technical Lead, IndyCar Racing II/NASCAR Racing for Macintosh/Windows
Papyrus Design Group, Inc.

Darrel David Cher

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by Darrel David Cher » Wed, 13 Sep 1995 04:00:00


: 2) Will there be a pit speed limit?

And, to add to this question, will the pit speed limits be realistic
like the real tracks (i.e. no 55mph speed limit at Michigan)?

BTW Rick, thanks for answering all these questions everyone's been
asking, we all appreciate the insight :)!!

   Darrel
=========================================================================  
 Darrel Cherry    
 San Jose State University - Math/Computer Science Dept.

 web:   http://www.isc.sjsu.edu/b/t/dcherry/public_html
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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  when you made that last turn."
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=========================================================================

RickGent

More ICR2 questions

by RickGent » Wed, 13 Sep 1995 04:00:00

1) Will the graphics for rainy conditions be improved?
<<<

I'm hoping so, but no promises. (I don't want to sacrifice frame rate to
get more realistic rain graphics.)

2) Will there be a pit speed limit?
<<<

Yes.

Rick Genter
Technical Lead, IndyCar Racing II/NASCAR Racing for Macintosh/Windows
Papyrus Design Group, Inc.

parker

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by parker » Sun, 17 Sep 1995 04:00:00

Is ICR 2 going to be ported to the Sony Playstation and if so when?

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