Page 1 of 1
Wet Settings ...
Posted: Fri Dec 11, 2009 7:00 pm
by Mako Koiwai
We know that it's better to have a softly sprung race car in slippery conditions ... which can mean not stiffening up ones shocks, ie. leave them on the street settings. At some point one might want to disconnect ones sway bars.
What about alignment settings?
On the Vette we change toe when we go to our R tires. Toe in up front, toe out in back. How does rain slick asphalt effect what one does with ones alignment?
(Don't believe everything you read on the net. ;) )
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 7:13 pm
by Jonathan Lugod
Mako Koiwai wrote:We know that it's better to have a softly sprung race car in slippery conditions ... which can mean not stiffening up ones shocks, ie. leave them on the street settings. At some point one might want to disconnect ones sway bars.
What about alignment settings?
On the Vette we change toe when we go to our R tires. Toe in up front, toe out in back. How does rain slick asphalt effect what one does with ones alignment?
I typically do not touch much on the car when there is rain/wet pavement other than running my shock rebound as soft as allowed.
Toe in (rear) should keep the car stable. If it were me I wouldn't bother messing with the car and just try to focus more on the driving.
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 7:49 pm
by Will Kalman
Jonathan Lugod wrote:Mako Koiwai wrote:If it were me I wouldn't bother messing with the car and just try to focus more on the driving.
+1
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 8:04 pm
by Steve Ekstrand
At the '08 ProFinale it deluged for the about the whole damn thing. Second day I disconnected my rear sway. Tightened up the car a little bit which was obviously needed, but slowed it down because now I couldn't even look at the throttle. Inside wheelspin off idle with even the most subtle turning, it was hopeless.
Obviously, this is for a FWD car with no limited slip.
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 8:21 pm
by Jonathan Lugod
Steve Ekstrand wrote:At the '08 ProFinale it deluged for the about the whole damn thing. Second day I disconnected my rear sway. Tightened up the car a little bit which was obviously needed, but slowed it down because now I couldn't even look at the throttle. Inside wheelspin off idle with even the most subtle turning, it was hopeless.
Obviously, this is for a FWD car with no limited slip.
see, an example of doing too much.
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 8:30 pm
by Max Hayter
Steve Ekstrand wrote:At the '08 ProFinale it deluged for the about the whole damn thing. Second day I disconnected my rear sway. Tightened up the car a little bit which was obviously needed, but slowed it down because now I couldn't even look at the throttle. Inside wheelspin off idle with even the most subtle turning, it was hopeless.
Obviously, this is for a FWD car with no limited slip.
08 Pro finale - we left the car alone. I won, Aaron 3rd and Annie won
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 8:54 pm
by Mike Kazmierczak
How about tire pressures?
Does this seem reasonable?
Tire Rack wrote:TIRE PRESSURES IN THE RAIN
For both autocross and road racing, increase tire pressures 6-10 psi from what you would normally run in dry conditions. Hydroplaning occurs when a wedge of water develops between the tire and road surface. This wedge can actually lift the tire off the road and eliminate traction. Increasing the pressure rounds the profile of the tire by decreasing the deflection of the tire. This results in a smaller contact patch - narrower and shorter. It also helps keep the grooves in the tread open so they can channel the water out from under the tire.
http://www.tirerack.com/tires/tiretech/ ... ?techid=58" onclick="window.open(this.href);return false;
Re: Wet Settings ...
Posted: Fri Dec 11, 2009 9:45 pm
by Mako Koiwai
Good weekend to test wet air pressures
Re: Wet Settings ...
Posted: Sat Dec 12, 2009 4:52 pm
by Marshall Grice
Will Kalman wrote:Jonathan Lugod wrote:Mako Koiwai wrote:If it were me I wouldn't bother messing with the car and just try to focus more on the driving.
+1
add me to this list. don't touch.
Re: Wet Settings ...
Posted: Sat Dec 12, 2009 6:17 pm
by Aaron Goldsmith
Marshall Grice wrote:Will Kalman wrote:
+1
add me to this list. don't touch.
agreeed
Re: Wet Settings ...
Posted: Sat Dec 12, 2009 7:26 pm
by Christine Grice
Max Hayter wrote:
08 Pro finale - we left the car alone. I won, Aaron 3rd and Annie won
:unimpressed:
STU cheater index...