rec.autos.simulators

gp2 engine or trans. troubles in rookie at imola

Chevy_Dav

gp2 engine or trans. troubles in rookie at imola

by Chevy_Dav » Tue, 26 Nov 1996 04:00:00

I am having troubles at imola as soon as I get the car into the 190s the trans
starts to flash yellow I dont know why?the car lasts about 5or6 laps seems like
only at this track what am I doing wrong?

Arnold van den Be

gp2 engine or trans. troubles in rookie at imola

by Arnold van den Be » Wed, 27 Nov 1996 04:00:00


>I am having troubles at imola as soon as I get the car into the 190s the trans
>starts to flash yellow I dont know why?the car lasts about 5or6 laps seems like
>only at this track what am I doing wrong?

It's not your engine or transmission, but you have the ride height set
too low. The plank under the car is scraping over the circuit, and
when the plank wear reaches 1mm you get a drag penalty (red).

So, choose a higher ride height, or stiffen up your springs.

Arnold

f1..

gp2 engine or trans. troubles in rookie at imola

by f1.. » Wed, 27 Nov 1996 04:00:00

It sounds like your car is bottoming out, you'll probably need to adjust
the ride-height of the car, ie raise it...

John Wehm

gp2 engine or trans. troubles in rookie at imola

by John Wehm » Wed, 27 Nov 1996 04:00:00


>I am having troubles at imola as soon as I get the car into the 190s the trans
>starts to flash yellow I dont know why?the car lasts about 5or6 laps seems like

>only at this track what am I doing wrong?

This is happening because the plank (a 10mm wooden board stuck to the bottom
of your chassis) is rubbing the ground due to the extensive downforce created
by your high speeds.  Once you have rubbed more than 1mm off of it, there
will be a substantial reduction in power, creating loss of speeds.  Depending
on how severely you are rubbing it (like, is it solid yellow, or just
flickering), this 1mm reduction could happen fairly quickly.

There are several ways to adjust this; the most obvious is to raise both your
front and rear "ride heights" (remebering to keep your rear heigher than your
front) until the plank no longer rubs down too much.  However, raising your
ride heights also reduces the amount of downforce traction you will have, so
there are things called "packers", which can offset the amount of ride height
vs. bottoming out.  I can't remember which works most effectively, but there
are a couple of setup guides out there that explain it pretty well, and even
though the manual looks like it doesn't do a very good job at first, really
read it thoroughly, and it might shed some light.

John Wehman


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