I need this info for "scientific" gearing setups. (I won't find the
seconds I need on the track, so I have to find them in the garage. :)
--
Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
.
| \
_________/ |
:)
--
* rrevved at mindspring dot com
>>Does anybody know a source for torque diagrams (and/or power diagrams)
>>of the engines portrayed in GPL?
> .
> | \
>_________/ |
>:)
I think I'd like a *bit* more detail. :)
--
Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
With some work and calculation, they maybe could be extracted from
replay data: Accelerating on a long straight (Monza, Mexico) in 3rd or
4th gear from idle to redline (without wheel spin), and then car mass,
drag and gear ratio have to be taken into consideration.
Drag and friction is somewhat hard to guesstimate, but the
deceleration after going into neutral at high speed should give a good
hint.
Using Juha K's gpldump (the old command line version), I once
extracted replay data and created Excel-Diagrams, also with
acceleration and deceleration: I was surprised that the cars could
AFAIR brake with over 15 m/s2 or 1.5g.
--
Matthias Flatt
This was a good application, however, it was written for Excel 97 (I
have 95) and it was written with only F1 in mind (I drive F3's). If I
still have the app. I'll post it in Alt.Binaries.autos.sims (or
something like that).
Mike barlow
> >On Thu, 05 Aug 1999 07:24:39 GMT,
> >>Does anybody know a source for torque diagrams (and/or power diagrams)
> >>of the engines portrayed in GPL?
> > .
> > | \
> >_________/ |
> >:)
> Nothing - nothing - nothing - a lot - nothing?
> I think I'd like a *bit* more detail. :)
> --
> Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
Race Communications Association
http://members.xoom.com/RCA/toc.html
Holodyne Engineering
Mystic Music
(have Your !!Name/Address!! placed here)
-Chris-
---Two wheels are better
---Proud owner of a 1998 ZX-9R
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
I think you've got that backwards. They look fine in a courier-type
fixed-width font. (trn in an Xterm window)
You must have drawn them in non-proportional (the only sensible thing
to do), and dejanews must be stupid enough to show news articles in
proportional (variable-width) fonts. Unless I've got *my* definitions
backwards... (But the guy in the next office agrees with me 8-)
Could you get around that by making it an html article?
Adrian.
Nitpickers 'R US.
-Chris-
I drew them in Courier New fixed width and pasted it into the
Deja-News posting window. It got changed after I posted.
They actually look pretty good if you copy and paste them into
a fixed width environment.
Next office!? You mean you're at work and not working!? :)
As if I didn't post this from work myself. <VBG>
Probably, but I don't know how to do that. If anyone is desperate
enough to want to really see these things I've got the .txt file and
can e-mail it.
-Chris-
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
Marc.
> I need this info for "scientific" gearing setups. (I won't find the
> seconds I need on the track, so I have to find them in the garage. :)
> --
> Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
cancellation
The same book also has a method using "Gear Charts"
that (as he promises) seems pretty close to optimal for this
task also. It's not hard to do your own gear charts
with simple spreadsheets, etc. I did my own baseline Lotus
gearing that way... ;)
For a road course you might want to include the effects of
the corner speeds and accelerations between the corners
to get the best results.
Drive to Win, The Essential Guide to Race Driving, Carroll Smith,
Carroll Smith Consulting, Inc., Palos Verdes Etates, CA, 1996.
ISBN-0-9651600-0-9
(Try http://amazon.com or http://www.motorbooks.com/)
> I need this info for "scientific" gearing setups. (I won't find the
> seconds I need on the track, so I have to find them in the garage. :)
Thanks for this comprehensive answer! I still wish we had the
"official" data, though.
--
Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
--
Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
AFAIR was max. acceleration about 1.1g only.
Wind drag gives extra deceleration at higher speeds.
Also, braking is done with 4 wheels, acceleration with only 2.
They seems to be like modern road tyres (or slightly worse).
--
Matthias Flatt
> >>Using Juha K's gpldump (the old command line version), I once
> >>extracted replay data and created Excel-Diagrams, also with
> >>acceleration and deceleration: I was surprised that the cars could
> >>AFAIR brake with over 15 m/s2 or 1.5g.
> AFAIR was max. acceleration about 1.1g only.
> >How can that be? It can neither be the wings, nor the sticky tires,
> >right? :)
> Wind drag gives extra deceleration at higher speeds.
> Also, braking is done with 4 wheels, acceleration with only 2.
> >Or are the GPL tires not that bad after all?
> They seems to be like modern road tyres (or slightly worse).
> --
> Matthias Flatt
Race Communications Association
http://members.xoom.com/RCA/toc.html
Holodyne Engineering
Mystic Music
(have Your !!Name/Address!! placed here)
