Landracing Forum
East Coast Timing Association => ECTA Rules Questions => Topic started by: tylerm on October 26, 2012, 10:58:51 PM
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I have a couple LSR bikes I have run at Speed Week the last few years, and I want to bring one (or both) of them to some ECTA meets in 2013. Neither has a front brake. Is one required to race at Wilmington? How long is the shut down? I couldn't find a course map on the ECTA website. Thanks in advance!
- Tyler
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Tyler --- What class does the bike race in ...
Joe
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http://ecta-lsr.net/?page_id=678
http://ecta-lsr.net/ecta_wordpress/wp-content/uploads/2011/12/Full-Map-with-Parking.pdf
Whoa is more important than go! :cheers: Especially when the unexpected happens! :-o :-o :-o
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Tyler.
The short answer is that over 175 mph front brakes are required.
Joe
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We ran 189 at the Texas Mile with the 1000 in 05... in Bonneville trim... too much weight, no front brake... made for a nice blue back brake after it cooled enough that you couldn't feel it from a foot or so away. Rob was only in the dirt a couple of times :-o
I would suggest putting on the front brake for any of the mile events.
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From AirNav;
"Runway 4R/22L
Dimensions: 9000 x 150 ft. / 2743 x 46 m
HAS 200 FT PAVED AREA EACH END.
Surface: concrete/grooved, in fair condition "
The starting line is right at the north end of runway. The mentioned 200' run off apron is staging area. Timing is the last 132' of the mile. There is .704 mile of shutdown plus the 200' runoff apron.
If you want to see an aerial view;
https://maps.google.com/maps?hl=en&q=wilmington+airpark+ohio&bav=on.2,or.r_gc.r_pw.r_qf.&bpcl=35466521&biw=1786&bih=874&wrapid=tlif135135341407510&um=1&ie=UTF-8&sa=N&tab=wl
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Full width drum vs. disc:
Drum has inherently stronger wheel with shorter spokes, narrower aero profile, no parasitic drag
Disc needs less contact area for the same BTU dump (higher pressure), faster cooling of fraction surfaces, only some calipers can be completely floated for no-drag in release mode
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Thanks guys. The SCTA classes are 750cc A-VG and 1350 cc A-VF. The 750 (1955 Triumph) has no front brake, drum rear. Ran 120.9 at Bonneville.. so far. The 1350 is a dual-engine 1955 Triumph, no front brake, disc rear. Ran 129 mph so far, only have 12 or so runs on it as of yet, should be able to up that a decent amount.
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Twin engine Tryimph. :-o. O man I can't wait till spring. You got any photos ?
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Eric, you spelled the motorcycle brand like I rode it, but yes...pictures,pictures
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If I spell Triumph right can we have a video.. :-P
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Sure, here are some videos!
http://www.youtube.com/watch?v=GPzboM3sjRo
http://www.youtube.com/watch?v=pPwPBi-PZe8
http://www.youtube.com/watch?v=zw3BXgInpqc
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Marvelous videos - caught a couple of your others while on youtube. What did y'all run on the salt?
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Thanks for the Videos. That is a beautiful piece of work. I cant wait to see it. And hear it.
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Loved the sound when it was leaving the line! :-D :-D :-D
Pete
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Got about 12 runs on it at Speed Week, teething issues and just little BS, learning the bike first half dozen runs. Top speed was 129mph, was having issues with what I thought was clutch slip, but ended up being wheel slip, so I am either going to change my seating position, or add ballast to the rear. I just got some nice scales so I can weigh it and make sure weight distribution is pretty equal, I think when I hit the throttle it hunkers down in the front and unweights the rear just enough to give me some slip at high speed when shifting and revving up
Set a record in 1350 cc A-VF but it was beat at World Of Speed a few weeks later by a dual engine Indian, he creamed my record at something like 148. I have a lot of things in the works for my bike right now and aim to come back and try for it again. Also am working on my single engine 1955 Triumph iron head bike that I set 2 records on in 2011, bringing that back to the Salt for 2013
Tyler