Rotax DD2 Road Race Video

Thom Andresen · Posted: Fri Oct 31, 2008 5:03 am Post subject: Rotax DD2 Road Race Video

Here is a twin cam version of the WKA Oct '08 National road race, two of us had helmet cams so I integrated them together into the video and synchronized them from the start. After about 8 laps or so they get a few seconds out of sync due to one camera recording 30.00 frames per second and the other recording 29.97 frames per second.

I also integrated the MyChron 4 data into a real time speedometer and tachometer, still working on the EGT data.

My camera ran out of tape two minutes prior to the photo finish of four karts crossing the finish line..... Rolling Eyes

Enjoy!

350MB WMV file.....

http://www.phossil.com/thom/RR%20Oct%202008%20DD2%20Nat%20Gauges%20PIP.wmv

BTW, there were 8 DD2s that started and finished this race, averaging 90mph for the entire 30 minutes.... Cool

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I spend my money on hunting, racing, women, and whiskey - the rest I waste.

Thom Andresen · Posted: Fri Oct 31, 2008 10:56 am Post subject:

Here's two practice laps around Road Atlanta in a DD2 this morning (Friday):

http://www.youtube.com/watch?v=JCUiayudQ0s

1st Race is Tomorrow....
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I spend my money on hunting, racing, women, and whiskey - the rest I waste.

Jim Emerson · Posted: Tue Nov 04, 2008 9:09 am Post subject:

The sync is awesome......Stay in the draft man on the start/finish straight then sneak under them on the right hander Cool

-Emmo

What are the lap times of a FR125 vs. the DD2? Makes me want to go race today in sunny Michigan!!

David Cole · Posted: Tue Nov 04, 2008 9:22 am Post subject:

Nick Weil · Posted: Wed Nov 05, 2008 7:05 pm Post subject:

Ken Schilling · Joined: 01 Dec 2005 Posts: 1351

Hey Thom,

That's fantastic Exclamation

That's road racing at it's finest. No bump drafting, excellent hand signals and working together. I'm a sprint racer and I'm very impressed. Looks like a lot of fun with a 90 mph lap average (80 - 100 mph). Comes down to being smooooooth, maintaining momentum and timing your draft passing.

I'd love to try it sometime with my Stock Honda!!! The closest we get to road racing here in SoCal is at Streets of Willow (1.8 miles). If you run the track backwards (CCW) I understand that the Stock Hondas can push close to 120 mph in the draft going downhill on the front straight.
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SKUSA Data Administrator

Good luck is where preparation and opportunity meet!!!

The opinions I express are mine alone and do not reflect those of any organization of which I am a member.

Thom Andresen · Posted: Thu Nov 06, 2008 6:19 am Post subject:

Ken, you would absolutely love it in a stock Honda! Cool

The Roebling Road track is basically a WOT track with zero braking or shifting for DD2s and sustained G-Force of 3.0-3.5 G's for up to 10-12 seconds around some of the corners (that puts a hurting on your body, sometimes I am black and blue under the arms, but I always come back for more).

During this race, there were 8 Rotax DD2s and RM1s out on the track.

My game was mostly to hang tight and film my friends and maybe beat them while I was at it. I had my four dogs locked up in the RV so didn't want to risk taking an excursion into the grass....four of us did cross the finish line within 0.2 seconds of each other after 30 minutes of duking it out.

Thirty minutes at 90mph takes allot of physical and mental endurance to get to the weigh scales, but it is damn sure close to the maximum amount of fun I can have without waking up in jail!!! Laughing

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I spend my money on hunting, racing, women, and whiskey - the rest I waste.

Jim Emerson · Posted: Thu Nov 06, 2008 10:38 am Post subject:

Nick Weil · Posted: Thu Nov 06, 2008 11:17 pm Post subject:

Thom Andresen · Posted: Fri Nov 07, 2008 5:45 am Post subject:

Only 50 days left until the green flag falls at Daytona, we will all be there to race! Very Happy

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I spend my money on hunting, racing, women, and whiskey - the rest I waste.

Thom Andresen · Posted: Sun Nov 16, 2008 8:00 am Post subject:

Thom Andresen · Posted: Wed Nov 19, 2008 7:12 am Post subject:

Sounds like we will have 12-14 Rotax DD2s and RM1s on track at the Daytona Speedway this year! Cool

_________________
I spend my money on hunting, racing, women, and whiskey - the rest I waste.

Alex R. Grandahl · Posted: Wed Nov 19, 2008 10:23 pm Post subject:

Very cool video.