You made the Yellowbird a strange car. I won't say I don't like it, but now it's an understeering car.
It's very difficult to powerout through the corners, as how the Yellowbird did great in GT5...
To understand what I mean with a Yellowbird, look what I used to do in GT5 (Suzuka).
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...so you see I can't really rejoin you on your interpretation of the car
This is funny I remember this (oldschool) way to tune a gearbox, that came from GT4 !
Anyway, you can tune a gearbox, it's nice and spaced evenly.
The suspension is neutral, so no big surprises there. Spring strength and dampers are too loose for me though.
The car have been secured in all domains. I think you could tune the LSD with a little more initial and accel (+1/+2), and do something about the decel because she brakes straigth to the walls...
Since now it's been secured, you can handbrake with not much fear... Then she glides quite parallel for the intial direction where you want her to go, but since the suspension is loose, you won't keep the direction long and you won't take off quickly after this.
The tire selection works really great offline, but I think that won't be working with tire wearing on.
Few questions remaining :
- after an oil change, did you improved the car's rigidity or not ? I did...
- I also see on the photo you changed the wheels, you may have experienced the "wheel bug", there, no ? So we didn't test the same cars, maybe.
- If you removed the weigth she had (stock at 1150kg), you made her 1145 because of the carbon hood, if it's by will, why not +86kg @ -50 instead of +81kg ?
- if I were you, I'd try the stock clutch if you change her LSD.