HOW STIFF DO YOU WANT YOUR CHASSIS?
#16
Burning Brakes
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Slightly OT, but Honda was having some handling issues with their MotoGP and WSB bikes in the late 90's. They figured out that at full lean, the chassis was so stiff that the springs were no longer really engaged, and that the only real spring action/damping was coming from tire flex and chassis flex - both undamped. By reducing the stiffness (slightly) they were able to better engage the springs/shocks/forks which resulted in better handling.
#17
Rennlist
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I remember reading about that. They had to allow their front forks and rear swing arms to have a little sideways deflection in order to provide some movement when the bikes were leaned over hard. I think that's one of the reasons that they went away from single sided arms in racing.
Now if you have your Porsche leaned over that far, you have a bigger problem than chassis flex.
Now if you have your Porsche leaned over that far, you have a bigger problem than chassis flex.
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Larry Herman
2016 Ford Transit Connect Titanium LWB
2018 Tesla Model 3 - Electricity can be fun!
Retired Club Racer & National PCA Instructor
Past Flames:
1994 RS America Club Racer
2004 GT3 Track Car
1984 911 Carrera Club Racer
1974 914/4 2.0 Track Car
CLICK HERE to see some of my ancient racing videos.
Larry Herman
2016 Ford Transit Connect Titanium LWB
2018 Tesla Model 3 - Electricity can be fun!
Retired Club Racer & National PCA Instructor
Past Flames:
1994 RS America Club Racer
2004 GT3 Track Car
1984 911 Carrera Club Racer
1974 914/4 2.0 Track Car
CLICK HERE to see some of my ancient racing videos.
#19
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I started a discussion about this over at Pelican's forum. I compiled this info based on some web searches showing relative chassis rigidity:
Here's the rest of the thread:
http://forums.pelicanparts.com/showt...hlight=chassis
Sherwood
http://members.rennlist.org/911pcars
Here's the rest of the thread:
http://forums.pelicanparts.com/showt...hlight=chassis
Sherwood
http://members.rennlist.org/911pcars