it all depends on how the tracks magic data is programmed
first suggestion is try running with exactly the same wing/gear settings as the ai
if that doesn't do the job, give yourself 16384 grip and the same bhp/wing/gears
as the pole sitter, do a few qualifying sessions reducing your grip until you
just get pole.
so for example you set pole with 2000 grip less than the 16384 default, with a bit
of luck subtracting 2000 from 15990 will get you qualifying closer to your team
mate, this should work for any car you want to drive on that track.
also make sure your random grip value (range in gp3 edit) is set to zero when you're
working out your grip level as this does make a difference when using the grip patch
if you want to get your hands really dirty, get stuck into the magic data, set up the ai
wing level and gears, than use the same setup for your car with 16384 grip optimum
bhp, take notice of your top speed
now the tricky bit, you need to edit both these values
desc20=ride height - lowering the value has the effect of raising your cars ride height
desc21=air resistance (a value of 10 desc 20 = value of around 150/170 for desc 21)
if you lower desc 20 then you also need to lower desc 21 as it effects your top speed
try lowering desc 20 by 50 and desc 21 by 750, go out on track and match you're
top speed altering desc 21 value, then try another q session and repeat process until
your just on pole, now you should get the right performance from any car you want to
drive on the grid.
after all that, make sure your fuel consumption is correct, altering these values will
change fuel usage
this of course take a lot of time but it's worth it
pk