XRAY - Model racing cars

What makes car to have more corner speed?
higher roll center?
what?
pls,help me

1st. buy new model and start drive

-.-
and then?
but seuriosly,guys,help

1 hole rear uprights, changes in setup, Harder tires, Heavier shock oil, heavier diff oil. Gear diff in front,

what about the roll center?

higher read setup book

There's no formula for higher corner speed directly. You need to see what happens to the car if you try to run through corners faster than the car actually could handle with the setup used. Once noticed that (like i.e. traction rolling, understeering or too much initial steering) you can work against these 'bad habits'. Of course there's a limit at a certain point.

okey....
next question...
if my rear is jumping because of too much grip what should i do?

In this case I would start with almost no rebound in the rear, then using one hole more outside on the rear shock tower and if this is not helping enough I then would use the outer camber link on the rear hubs. And finally but just when really needed I would raise the rear roll center to decrease rear grip a little. But the steps before should help already.

or may i use thicker oil?

Yes you could use thicker rear shock oil. But a setup should always be as soft as possible and as hard as needed. So I really would start with less rebound and so on. These things are done fairly quick I would say. What oil/piston/spring do you run in the rear? I assume you run on carpet meanwhile, right?

Possible also try changing the rear roll bar

yes,now i run on carpet,but tracks are very diffrent
i dont have local carpet track,unfortunatuly:(

i had 300 with 4holes

i changed anti roll bar on rear from 1.2 to 1.4

is stiffing the chassis gives me more corner speed?(stiffing by using more srews in top deck)

on carpet use 450-650 oil in shocks , lime me

Yes, I run F/R 550/450, 3-hole, 28lb/17.5lb springs with rubbers on carpet. I use **** ARB F/R. For trackwidth I use 1mm spacers around in the front and 2mm spacers around in the rear. (tight track) Maybe I change to 1mm spacers around in the rear, too. 300 with 4-hole pistons is really too soft for carpet.

ok
i will try with 500
but what if i use on front 300 and on rear 500?
and the opostie(f-500 r-300)
whatsa gonna happen in those two "options"?

car will be crazy

i wanna serious repleies

It might be better if you completely fill out an online setup sheet and link to it here so everyone can look at it for you.

It's hard to advise what to do if we don't know what you have already.

Skiddins