avoiding over steering

[omani]

hi all..
iv got a sc 300 stock rims.. size 16inch

iv been racing lately with the car in sprint races , but iv been facing a big problem, which is over steering.. so is the re a way i can a void over steering in races ??

i kno it all depends on how i steer and takle the turns.. but is there anything else..

does reducing air in the front tyres help..
i mean if i normaly drive on 30psi in all 4 weels... does reducing to 28psi help...
guys plz help.. my next race is in less then an 9 hours..

thanx

[CapriRacer]

The answer depends on where you are starting. What cold pressures are you using now? Street tires?

First you need to get a pyrometer so you can diagnose where the real answer resides - springs, tire pressure, etc.

I'm going to guess you don't have enough pressure to start with so going up in the front makes sense. A good starting point should be 40 psi all around, assuming you are doing road racing with an unmodified car on street tires. If you aren't there, get there soon. Otherwise a tire failure is around the next corner.

Hope this helps.

[omani]

offfffffffff.... 40 psi... ??!!!!

but mate.. im running my tyres on 3o psi on everyday use...

anyways... im from the middle east.. so the temp .. here is fuckin.. high.. im talking a bout 25C-30C in winter.. and 35C-45C in summer... C= celcius

my car is absalutly standard.. exept for lowerd suspensions.. like 2 inches less then stock ones... and a air filter and blow off valve..

mate.. let me make the idea clear.... the track we race on is small... not really small.. bs very tricky.. coz origonaly it was build for go carts.. so i guess u can imagine the sharp turns it has.. ...
basicaly for my car its only 1st and 2nd gear..
my best time until now for one lap is 57 sec... (and that was my first time in there..) .. i was sliding alot.. espacioly at the time were the 2 turbos kick in.. .. lo0ol ppl think im drifting in there..
anyways.. im getting used to the car now.. im have a better control.. but still .. i need some help.. coz im not able to push full on the accelarater.. coz if i do.. ill just be burning rubber..
so any help.. ??
i thought a bout semi slicks.. but my mates told me that they have used them b4.. and by time.. they will fuck up the differential.. !!! is that right ?

[drdisque]

my suggestion would be to try to get some wider rear tires, another solution would be getting a thicker front sway bar.

[CapriRacer]

But here's a suggestion for the next time you go to the track.

Try "chalking" the tires. Before each run, rub a 1 inch wide line from the tread shoulder to about 25% down the sidewall. Use a white crayon or chalk. After the run see how much "rollover" you have. I think you'll be surprised.

You want to keep the part of the tire that was designed to grip to the road in contact with the road and too much rollover means you're not getting that.

You'll also want to measure the inflation pressure afterwards. I'm not quite sure, but are you doing single laps with rest in between? If not you could be getting significant heat build up, and heat is the tire killer.

BTW, every time you go, you should have a test plan, with a strategy that includes changes after every run.

Hope this helps.