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Thunderhill repave

Old 09-30-2008, 01:50 AM
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MJM
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Default Thunderhill repave

See the new pavement for yourself!

Lap time isn't that great, around a 2:10. I was nursing stock brakes and seeing high engine oil temps but at least now you can see the new pavement.

Overall they did a great job. The surface is very smooth with only a few exceptions. The biggest is a seam on the backside of the bypass. I ended up going wider than normal to avoid it since my suspension is pretty stiff.

Enjoy.

Matt

http://www.youtube.com/watch?v=BVvYYVUYmjM

Last edited by MJM; 09-30-2008 at 01:53 AM.
Old 09-30-2008, 03:00 AM
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Last C5
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Thanks for the video. I'm headed down there Oct 18/19. How were the new curbs?
Old 09-30-2008, 09:08 AM
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Originally Posted by MJM
See the new pavement for yourself!

Lap time isn't that great, around a 2:10. I was nursing stock brakes and seeing high engine oil temps but at least now you can see the new pavement.

Overall they did a great job. The surface is very smooth with only a few exceptions. The biggest is a seam on the backside of the bypass. I ended up going wider than normal to avoid it since my suspension is pretty stiff.

Enjoy.

Matt

http://www.youtube.com/watch?v=BVvYYVUYmjM
Just go airborne at the top of the bypass and jump the seam! j/k . . . saw a P-car try that last Friday. Wasn't pretty. But, yea, the seam upset my car a lot.

Originally Posted by Last C5
Thanks for the video. I'm headed down there Oct 18/19. How were the new curbs?
They've ground down the 90* angles that were on many curbs immediately after the repave. They're rounded, but VERY rough. Looks like they "ground" them down with a jack hammer. At least you can kiss the curbs now without destroying a rim. But man is that track smooth!!!

FM
Old 09-30-2008, 12:19 PM
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Where did you have the camera mounted?
Old 09-30-2008, 02:46 PM
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Joy of 6
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Good video but no sound???? Were you driving a Prius?
Old 09-30-2008, 06:24 PM
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Originally Posted by Joy of 6
Good video but no sound???? Were you driving a Prius?
2000 C5

technical issues with the sound.

Camera was mounted on the front of the car.
Old 09-30-2008, 06:44 PM
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Middle? I'm trying to gauge your line versus mine. You seemed well off some of the curbs and markers that I used to brush/use prior to the repave. I don't have video or times, unfortunately.
Old 09-30-2008, 11:02 PM
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Originally Posted by gkmccready
Middle? I'm trying to gauge your line versus mine. You seemed well off some of the curbs and markers that I used to brush/use prior to the repave. I don't have video or times, unfortunately.

I usually clobber, jump or ignore the curbs at Thill myself. But that was the old track this is the new. Additionally the camera is mounted on the nose of the car in the middle so the curbs that I did use this time appear off to the side in the video.

I'm sure I can turn a quicker time, but I'm shifting at 5k to keep my oil temps under 300. Time for an oil cooler.
Old 10-01-2008, 01:11 AM
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Originally Posted by gkmccready
You seemed well off some of the curbs and markers that I used to brush/use prior to the repave.
You can still use some of the curbs!


Old 10-01-2008, 01:28 AM
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Originally Posted by MJM
Lap time isn't that great, around a 2:10.

Upon further review a 2:10 ain't that bad. ST2 qualifying time was 2:03 in the last race. Ditch the stock brakes, add an engine oil cooler so I can run hard, put in a cage....who knows?
Old 10-01-2008, 01:58 AM
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WOW! When you said the camera was mounted on the front of the car I didn't realize you really meant the very front.
Old 10-01-2008, 04:14 AM
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Where's Thunderhill?
Old 10-01-2008, 08:14 AM
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Originally Posted by lilmonster
Where's Thunderhill?
One hour north of Sacramento on I 5.
www.thunderhill.com
Old 10-01-2008, 08:46 AM
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Originally Posted by Last C5
WOW! When you said the camera was mounted on the front of the car I didn't realize you really meant the very front.
I guess that means no bumping!
Old 10-01-2008, 08:48 AM
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It looks like a lot of fun, especially the elevation changes. You West Coasters are spoiled, nothing to hit like NASCAR "soft walls" that are not very soft.
Old 10-01-2008, 08:59 AM
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Nice video! Thunderhill is a fun track - I ran it for the first time in August and enjoyed it. The elevations changes are interesting and were pretty unsettling to the car I was driving. The interesting thing about Turn 3 and "The Bypass" which I guess is Turn 5 is that you land on the backside of the hill on an off-camber right-hander. So, you have to get all your braking done and be pointed the right direction before you crest or you'll end up in the dirt!

Not many walls at Thunderhill other than on the front straight, but some of the "natural barriers" which are basiclly berms are pretty gnarly - I noticed the one on the outside of Turn 8 several times as I was flat-footed through there in 5th gear and running out of runoff!

The pavement really is very nice - exceedingly smooth compared to anything else I've ever run on. I'll be back in December to run it for 25 hours straight, after that my opinions may differ!
Old 10-01-2008, 10:49 PM
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=mikahb;1567309216 I'll be back in December to run it for 25 hours straight, after that my opinions may differ!
Are you running your Corvette or something else in the 25 hour?

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To Thunderhill repave

Old 10-02-2008, 08:22 AM
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Originally Posted by MJM
Are you running your Corvette or something else in the 25 hour?


Old 10-02-2008, 08:25 AM
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Cool! Can a Ferrarri actually run 25 hours between service?
Old 10-02-2008, 08:50 AM
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Originally Posted by ghoffman
Cool! Can a Ferrarri actually run 25 hours between service?
Likely not! Thankfully, this is a heavily modified Factory Five Racing GTM - currently the only one in the world that is built for, and actively racing. It's got an ASA LS3, C5 suspension (coilovers) and a custom-built Porsche Racing 6-speed gearbox. They've spent most of this year adding performance and reliability to the car, so I think we've got a very real shot at a class win and an overall podium. Car will be turning 1:55's or so in race trim.

More information about the car here. My writeup and lots of pictures of August racing in the GTM at Thunderhill here.

Car used to be painted red and EVERYBODY thought it was a Ferrari - still kinda has that look.

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