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SCCA number rules

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Old 02-15-2010, 12:05 AM
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PushinTheLimit
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Default SCCA number rules

I'm trying to find the rules for what SCCA requires on the car numbers that are to be on the front, rear and sides of the car. I've looked around but I haven't found what I needed yet. If anyone can point me in the right direction... I would appreciate it. Thanks.
Old 02-15-2010, 12:17 AM
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Bimota Guy
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From page 75 of the 2010 GCR (General Competition Rules) which can be downloaded from www.scca.com The diagrams referenced are on pp 76-77. If you have never reviewed the GCR, you should.

Have you picked up the car?

9.3.29. IDENTIFICATION MARKINGS
Each car shall carry identification numbers and class letters per A and
B, below, SCCA logos per C, below; and any markings required by the
Supplemental Regulations.
A. Numbers and Class Letters
Numbers shall be placed on the front and both sides of the car so that
they are legible. All Formula cars with a rear wing shall have legible
numbers on each rear wing side plate. Numbers shall be no more than 2
digits, and shall meet the approval of the Chief of Timing and Scoring.
3 digit numbers may be used when individually approved in advance by
the Chief of Timing and Scoring. Class letters shall be placed on both
sides of the car so that they are legible. Rear numbers and class letters
are recommended. The numeral “1” shall be exclusively reserved for
the current national champion in each class for national events. If 2 or
more national champions are entered in the same run group, the first to
register shall have preference.
B. Size of Numbers and Class Letters
Numbers shall be at least 8 inches high, with a 1.5 inch stroke on a
contrasting background (rear winged Formula cars shall have as large
a number as possible on their rear wing side plates). Metallic (reflective)
numbers and class letters are prohibited. The distance between 2
numbers shall be at least as wide as the stroke of the numbers. Class
letters shall be at least 4 inches high, with a 1/2 inch stroke on a
contrasting background.
C. SCCA Logo
Each driver’s suit shall display the official SCCA uniform patch logo
(see figures 2 and 3). Each car competing in an event shall display the
official SCCA field logo (see figures 4 and 5) unobstructed and prominently on both sides of the car and adjacent to the side numbers. A third logo shall be displayed on the front of the car unobstructed and
prominently near the front number. The logo shall be on the spoiler of
cars so equipped. Effective 3/1/2010 for SCCA National Races, the
SCCA Field Logo will consist of the National Series Logo (Figure 4A) For
Regional Races and SCCA Driver Schools, either the SCCA Field Logo
or the National Series Logo will be acceptable.
Old 02-15-2010, 12:32 AM
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PushinTheLimit
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Thank you sir... I was looking over that document briefly but somehow missed that

I'm flying out to CA late March to finish the deal finally... can't wait!
Old 02-15-2010, 12:58 AM
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Bimota Guy
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Originally Posted by goldeneagle_10
Thank you sir... I was looking over that document briefly but somehow missed that

I'm flying out to CA late March to finish the deal finally... can't wait!
Mid-March would be much better. Double Regional at Buttonwillow on March 13 & 14. When will you have a chance like that again?

In any event, enjoy the car!
Old 02-15-2010, 08:51 PM
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Han Solo
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Ha that's funny. I am just finishing up my new auto-x numbers out of reflective vinyl. I actually made them from reflective red with a reflective white border. Doesn't matter to me for regional. I don't think they care. I'm sure they are more stickler for club racing.

I can't imagine why they would ban reflective.
Old 02-15-2010, 09:33 PM
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Olitho
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Originally Posted by Han Solo
Ha that's funny. I am just finishing up my new auto-x numbers out of reflective vinyl. I actually made them from reflective red with a reflective white border. Doesn't matter to me for regional. I don't think they care. I'm sure they are more stickler for club racing.

I can't imagine why they would ban reflective.
Although timing and scoring is done with AMB, when you are up in the scoring tower where they always do manual scoring as a backup, it is hard sometimes to read the reflective numbers.

Old 02-16-2010, 04:47 PM
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TravisD
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Speaking as a sometimes-T&S worker, exceeding the minimum standards is GREATLY appreciated. it's not just size, it's also contrast and general legibility. Even for the AMB timing system, visual confirmation is still the rule, and every lap of every car is recorded by hand as a backup and double-check to the computerized timing.

It's also not just T&S as well that needs to read them - it's used by corner workers too. From an overall safety perspective, it's nice to know who's medical contact info to pull when a car goes hard into the wall.

For Solo events, legible numbers are be just critical since there is no transponder in use.

In all cases, keep in mind that the people trying to read the numbers are usually trying to do it from an angle as you're coming towards or away from them, frequently thru glass, and many times for a large group of cars at the same time.
Old 02-16-2010, 08:56 PM
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vettehardt
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Originally Posted by Han Solo
Ha that's funny. I am just finishing up my new auto-x numbers out of reflective vinyl. I actually made them from reflective red with a reflective white border. Doesn't matter to me for regional. I don't think they care. I'm sure they are more stickler for club racing.

I can't imagine why they would ban reflective.
Most autocross timers work off of a reflected beam. The reflective numbers on the car can reflect the beam back and can cause faulty trips or no trip at all. My dad has even had probles with white cars doning it. We have figured out to turn down the strength of the beam to minimize this.

At NCCC convention this year they ran into a problem at the High speed event with bad timing. First they had the start and finish timers in a straigt line (one can read the other one also), and they also had pylons with the reflective tops on them at the start and finish lines. It created quite a havoc.
Old 02-16-2010, 09:00 PM
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never had an issue with anyone seeing my numbers. bigger the better.
Old 02-18-2010, 07:56 AM
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Han Solo
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Originally Posted by vettehardt
Most autocross timers work off of a reflected beam. The reflective numbers on the car can reflect the beam back and can cause faulty trips or no trip at all. My dad has even had probles with white cars doning it. We have figured out to turn down the strength of the beam to minimize this.

At NCCC convention this year they ran into a problem at the High speed event with bad timing. First they had the start and finish timers in a straigt line (one can read the other one also), and they also had pylons with the reflective tops on them at the start and finish lines. It created quite a havoc.
Crap, never thought of that. Guess I better take some tape with me in case mine create a problem.

I'm pretty sure our timers shoot below the height of my numbers though.

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