Quote:
Originally Posted by Bobcat
sspano01... you asked about 2 1/2 degrees negative camber on the street .... don`t do it as it wiil eat up your tires on the inside . It`s a pain , but I reset my camber etc before track time and then reset it for the street after the track . As you get faster , you will find that your brakes will probably not be good enough . I have street pads and track pads and change before going to the track and then after the event . Again , it`s more trouble , but keeps you from not being able to stop once you really start using the brakes hard . The ducting others mentioned is pretty much a must in my book .
You asked about my Avons and tire pressures . I start at 25 psi COLD on the front and 23 psi COLD on the rear . You will gain as much as 10 psi on a hot track after the tires come up to pressure . Just take it somewhat easy for a few laps until you get some heat in the tires .... you`ll be able to feel it .
Measure your tire pressure right after you come in and see what your buildup is . Take some white shoe polish and paint the inside and outside edges of you tires to see how much they are rolling over .... old school , but it works and is cheap . Tells you if you need more air or less .
Keep a detailed log book so you know what works and what doesn`t .... and I mean record everything ... air temps , clear , cloudy , everything .
Otherwise , have fun .... which you sound like you are already having .
David ... on the Miatas , X20 . At VIR , you don`t want to try to keep up with them in the uphills or any of the other tight parts , as they will eat you alive .
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Bob: I know, I've run VIR once before,I learned my respect for the Miatas a loooooonnnnnnnngggggggggg time ago!!!!!!
All very good advise, I stole of bottle of the window paint from my daughter,use it on the sides of the tires,works like a charm...also the part about keeping accurate records, tire type/air pressures and all, you can not keep enough good info....it'll save you a lot of time and trouble down the road...
Also, if you drive your car a lot on the street, I'd suggest another set of wheels and maybe some Hossier R6 road race tires or a similar tire...
A decent street/track setting is 1/2 to 3/4 degree of negative camber and 2 degrees of positive caster....depending on your annual street mileage this is a good compromise.....
And no one has mentioned yet, but you need to keep a "racing kitty" of $$$$$, you'll soon find out just how much tires and brake pads cost and how long or lack thereof they last,not counting your gas and
oil changes and all the upgrades you WILL be making as you progress......
But, damn,it sure is fun/fun/fun!!!!!!!!!!!!!
David