This is my car's geometry for Monte Carlo 2003 (2002 Focus WRC)
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Typical M-Sport, they don't care about castor.
Also rear toe-in is quite big, which is interesting.
Anybody know what was max wheelbase and track allowed for Focus then?
BTW. Current cars geo settings I wrote some days ago in other thread - tech stuff
I also noticed the difference between left and right front castor and found it interesting. If I'm not mistaken the rear toe-in makes the car more understeering, right? That would fit with what Antony wrote about his preferred car behavior. I have seen several asphalt setups and in some there was rear toe-out used. However that was with fully mechanical S2000 cars while Focus WRC 02 was fully active car.
I think that for 2-litre WRC cars there was same rule for wheelbase as for recent cars which means stock value +/- 1%. That would mean 2615 mm +/- 26,15 mm in case of Focus. I'm not sure though. I have no idea about track limit.
toe in at rear gives the advantage of having a car that goes on straights in 150 Km/h without crawling. Makes the driver more confident not having to compensate with steering all the time.
Toe in in rear usually makes car more stable - less overstear, like all above said. Usually in non-active cars most people use some smaller toe-in, but that really depends on driver.
So if max wheelbase allowed was 2641mm they had still some way to make car "longer" - more stable, etc.
From what I noticed MSport never really paid attention to castor and all cars from them which I saw had different castor on both sides. Still castor around 8 is nothing special, but don't know the construction of its suspension too good.
Thanks guys about the toe-in at rear. I actually meant it like You said (less oversteer, more longitudinal stability) just wrote it incorrect.
Hi and happy new year guys! (and girls)
I have made a special video for all motorsport fans! You can call it my new year contribution.
http://youtu.be/Vhwm1sjKV6I
Hi everyone !
If you'd like to get a view some of the co-driver's many jobs, here's a video about it :
http://youtu.be/P9rje-aPNi0
Cheers,
Antony
Found and signed up to this forum as a consequence of your blog Antony. Please keep the posts coming, some absolutely fascintating reading on your blog!