sfsvettes

On a C5 Z06 how much diff is there between a car properly set up for HPDE track day car vs. autocross set up etc ?

Im looking for a autocross car , but I seem to find more track purpose cars available right now.

Not sure if a HPDE car will perform as well in an a lower speed autocross enviroment.

I need some help on this ?
My idea, is to find a decent C5Z with good shocks/springs/bars and a set of Hoosiers or V710's ?

Thanks

brkntrxn

An Autocross car will not need things like oil cooler, tranny cooler, diff cooler, Cool Suit setup, fire extinguisher, full cage, etc.

mountainbiker2

Just go buy a stock C5 Z06 2002-2004. Put on Hoosiers A6's on the stock wheels. No need for oil coolers, fancy brakes, coil overs, etc. You will be faster then 95% of the cars out there. I just bought a 2004 Z06 and did the following mods. Stock rear wheels 18x10.5 on all 4 corners. 315/30/18 Hoosiers A6's. 35mm front sway bar. Hotchkis rear sway bar. Great Alignment. That's it. It makes me smile every time I Autocross it.

Last race.


Steve A.

acrace

If you're looking for an autocross car, have you thought about what class you want to run the car in? Semi-serious or just for fun? The other posters are correct - there's stuff on a track day car like cage/seat/harness (safety) and coolers (durability) that you don't need for autocrossing, and other stuff (like a gutted interior) that would put you into a much higher class for autocrossing.

As mountainbiker2 said, getting a nice clean stock C5 Z06 and doing bar/basic shocks (Koni 3013s)/alignment will get you a nice car, and one that is capable of being near the top at national level autocross events in the Super Stock class.

rfn026

The biggest difference will be in the driving style.You need to be really aggressive in AutoX. Driving on the track not so much.

Richard Newton

sfsvettes

would a track car set up still work well as an autocrosser ?
Too soft or too stiff ?

acrace

http://www.sccaforums.com/forums/aft/444873

Check out the above link and you're all set.

sfsvettes

thanks for the heads up.. i will check it out...

Bad Karma

Class setup within autocross could make a big difference. Brake pad choice would be different too; Autocross you want good initial bit, on the track something that can really take the heat.

mountainbiker2

I like hardly any initial bite. If you only want to scrub off a few mph, it's hard to do with high initial bite. It's different for everyone.

Steve

63Corvette

For Autocross, I personally want great initial turn-in, but very quick rotation.
For track, I personally want great high speed turn stability, coupled with good initial turn-in and good corner exit traction.......however this last one is also a requirement for Autocross.

I never use 1st gear for track, but might use it for slow areas of a tight Autocross.

rfn026

You want a brake pad that doesn't need a lot of heat. My track pads work best at about 900-degrees. A good street pad will work at around 400 to 500 degrees.

Richard Newton
Car Tech Stuff

Bad Karma

I should have put good bite when cold, meaning I'd want a pad with a lower temp range for Autocross and for the track if it takes a lap to heat up the pads to their optimal operating range, no problem as long as they ritjdyand yhr heat of a session. But that same pad will not hit its optimal temp range around a short Autocross run.