Originally posted by InitialD
Michael, your suggestion seems to suggest to make the car have more on power steering with more caster and less rear toe in...
Like what RacerDude mentioned, shouldn't the rear toe in be more for technical tracks to prevent on power oversteer? Besides for a small track, scrubbing speed in the straight line is not so important and using more rear toe in, your rear is more stable.
I think in my opinion, to get more turn in the sharp corners and apexes, less caster is required...
I would agree on the open / looser diff though.
Well, the problem with rear toe is that it takes away steering! No matter if you are on or off throttle! It also takes away top speed!
So the goal should be as little as possible.
With the 705 my problem was usually turn-in oversteer, never on-throttle. Of course this also depends on the differential settings.
So again: a loose diff will make your car turn in faster but will create understeer out of the turn.
More rear toe will creat more understeer (or more rear traction) off and on-throttle.
Caster is more difficult. With more caster the inside rear wheel will lift more, when you turn the wheels. Because of that effect you actually gain steering (or loose rear traction). On the other hand you have less front rubber touching the surface because the inside wheel will run more on it's edge.
If you gain steering or not with more caster may depend on your diff settings. If you run a tight diff or solid rear axle, you will gain steering on and off throttle, because the lifted inside rear wheel will help the car to turn. With an open diff you don't need to lift the inside wheel, in that case the car may turn better with more front rubber on the street, which means less caster.
Something to think about!
