Autocross

[jrtoffroad]

Took my ZR1 to an autocross last weekend for the 1st time and wow what a blast, I've been on a high all week. I'm already anxiously awaiting the next event!

The balance and power of the zr1 is simply amazing. I've only autocrossed 2 times before, once in a GT Mustang and once in my 69' TR6, and while those were fun, the performance doesn't even compare. My tires are a little old, and that combined with cold damp conditions made it tricky. I found my best times by short shifting to second and keeping the revs down to help keep the rear end in check.

Although I'd really like to pickup some new sticky tires, I was still able to get 1st in my class (B Street Prepared), and 3rd out of ~20 novices.

Anyways, just wanted to brag. Next event is in 2 weeks, hopefully I'll get some video.

Anyone else autocross their Z? Any input on tires, tire pressure, or alignment settings?

-Jordan

[bobbyhi]

Originally Posted by jrtoffroad

Took my ZR1 to an autocross last weekend for the 1st time and wow what a blast, I've been on a high all week. I'm already anxiously awaiting the next event!

The balance and power of the zr1 is simply amazing. I've only autocrossed 2 times before, once in a GT Mustang and once in my 69' TR6, and while those were fun, the performance doesn't even compare. My tires are a little old, and that combined with cold damp conditions made it tricky. I found my best times by short shifting to second and keeping the revs down to help keep the rear end in check.

Although I'd really like to pickup some new sticky tires, I was still able to get 1st in my class (B Street Prepared), and 3rd out of ~20 novices.

Anyways, just wanted to brag. Next event is in 2 weeks, hopefully I'll get some video.

Anyone else autocross their Z? Any input on tires, tire pressure, or alignment settings?

-Jordan

Don't know anything about the settings, etc. but good luck in 2 weeks

Keep the rubber side down...............

[ZR1@gmx.com]

Sounds fun! I have never done it but would love the opportunity!

[QB93Z]

Thanks for telling us about you experience at the track. Try posting a specific question about setting in the General Section. You will get a lot more responses.

Jim

[tomtom72]

Waaay cool! 1st in class!

You may want to call Doug Rippie or have a look at Dick Gulstrand's site for alignment suggestions....maybe even vette brakes & products might have something.

I would say maybe a set of Nitto NT05's or INVO's maybe; unless you want to have a set of dedicated track tires and another set for street use?

I know that this may sound stupid. In our pizza boxes is a small spiral bound book with the splash logo on it. That book is an owners' manual specific to the ZR-1, and it it there is an "off road" section. In that section it has a suggestion of alignment settings for track use....there is a whole bunch of info actually that I found good reading, JMHO.


Tom

[jrtoffroad]

Hit the autocross again today, here's a couple videos:

Interior (very shaky)-
http://www.youtube.com/watch?v=fY81J9M9DA8

Exterior -
http://www.youtube.com/watch?v=5JShaLf_EWc

Ended up getting 2nd in class, but still aways off the BTD. Car did GREAT, hope to get a new set of tires before the next event and maybe look into tweaking the alignment a little.

[94Admiral]

Thanks for the videos!! That looks like a real blast!!

Any hints on performance improvements you made or anything you learned about the car doing this? Thanks!

[jrtoffroad]

Went to my 10th autocross for the year yesterday and the ol ZR1 made me VERY proud.

Held FTD all morning, losing it to a c5 Z06 in the afternoon, but coming out 2nd overall (raw time) in a field of 84 cars. The course was long and fast, just what the ZR-1 likes. On the back straight I was just about at the rev limiter in 2nd before braking for a 3 cone slalom leading into a sweeper.

No recent changes to the car. Surprisingly the Nitto NT-01 really hooked up well even with cooler temps. Pressures were kept at ~33 front & ~30 rear hot.

No video, but will post some pics later.

[jrtoffroad]

Well, had another Auto-X Sunday (10/30) and took home FTD in a field of ~60 cars!

Only change on the car was properly torquing a few very loose rear suspension components (A couple nuts were just finger tight!!!). Ran the tire pressure VERY low for this event, ~28 front and ~26 rear. Traction was great, but car felt a little loose on the edge, probably run them a touch higher at the next event.

Even cooler at this event (high of ~60), and the NT-01's still did not disappoint.

Overall great event, with a slightly smaller turn out than usual we were able to get 8 runs in (with each averaging ~50sec).

[JThomas]

Yep, you're hooked! Keep it up.