Best type of number decal for Track Days
My procedure for magnetics is to wash and wax doors before applying magnetics. Make sure magnetic is stored flat, and keep them from being cold when you apply them, or else they won't lie flat on door skin (these were instructions enclosed with my magnetics, and they're true.) I then tape all the edges down with electrical tape. I do it neatly so it looks like a contrasting color border. Electrical tape comes in various colors, so you can stylize your border as you wish. It leaves a small amount of residue right where you start peeling it off (maybe 3x3 mm) when you remove it, but nowhere else. This removes easily with car wax. From my experience, this procedure makes the magnetic nearly impossible to blow off, and there is no moving around to cause scratches, and no way for dirt and grit to get underneath them. I have been up to 136 mph with no problems. I do this procedure because the first set of magnetics I had blew off 3 times, getting destroyed.
Some sanctioning bodies require 10 inch tall numbers (which look a lot better than little numbers anyway.) I found out that NASA Time Trials require 3 digit numbers. Of course, I have a 2 digit number. If I were to order a set today, I'd get a 3 digit number.
Some sanctioning bodies require 10 inch tall numbers (which look a lot better than little numbers anyway.) I found out that NASA Time Trials require 3 digit numbers. Of course, I have a 2 digit number. If I were to order a set today, I'd get a 3 digit number.
My procedure for magnetics is to wash and wax doors before applying magnetics. Make sure magnetic is stored flat, and keep them from being cold when you apply them, or else they won't lie flat on door skin (these were instructions enclosed with my magnetics, and they're true.) I then tape all the edges down with electrical tape. I do it neatly so it looks like a contrasting color border. Electrical tape comes in various colors, so you can stylize your border as you wish. It leaves a small amount of residue right where you start peeling it off (maybe 3x3 mm) when you remove it, but nowhere else. This removes easily with car wax. From my experience, this procedure makes the magnetic nearly impossible to blow off, and there is no moving around to cause scratches, and no way for dirt and grit to get underneath them. I have been up to 136 mph with no problems. I do this procedure because the first set of magnetics I had blew off 3 times, getting destroyed.
Some sanctioning bodies require 10 inch tall numbers (which look a lot better than little numbers anyway.) I found out that NASA Time Trials require 3 digit numbers. Of course, I have a 2 digit number. If I were to order a set today, I'd get a 3 digit number.
Some sanctioning bodies require 10 inch tall numbers (which look a lot better than little numbers anyway.) I found out that NASA Time Trials require 3 digit numbers. Of course, I have a 2 digit number. If I were to order a set today, I'd get a 3 digit number.
You do have to store them flat and never put on a wet or Overly waxed surface as that will allow for movement. I have very small magnets for my class which I put on the bottom of each door and they have never come off.
Of course you get what you pay for. I used a very good sign company to make my numbers so I wouldn't have to worry about that.
Yes, get good magnetics. I got my magnetics from Rennline or Renntech (one of those Renn's). They're really good. I recommend them.
The 5 minutes it takes me to tape up the sides ENSURES that no fine particles of grit will make their way under the magnetics to permanently scratch the paint. My car is covered with grit after a session, but absolutely clean where the numbers were. No movement, no scratches. If I could not ensure that there would be no scratches using magnetics, then I would use adhesive vinyl numbers (which I have used. I got tired of having to buy more of them all the time; and I just don't have full trust in the static cling vinyls.)
Everyone I know tapes up at least the leading edges of their magnetics.
You can find several posters (including me) who had magnetics blow off on the track, ruining the numbers, and endangering other cars on the track. The tape ensures that this will not happen.
Blue painters tape is by far the cheapest, it's very quick and easy to apply and remove, and it works well. Personally, I just think it looks junky.
Happy tracking!
The 5 minutes it takes me to tape up the sides ENSURES that no fine particles of grit will make their way under the magnetics to permanently scratch the paint. My car is covered with grit after a session, but absolutely clean where the numbers were. No movement, no scratches. If I could not ensure that there would be no scratches using magnetics, then I would use adhesive vinyl numbers (which I have used. I got tired of having to buy more of them all the time; and I just don't have full trust in the static cling vinyls.)
Everyone I know tapes up at least the leading edges of their magnetics.
You can find several posters (including me) who had magnetics blow off on the track, ruining the numbers, and endangering other cars on the track. The tape ensures that this will not happen.
Blue painters tape is by far the cheapest, it's very quick and easy to apply and remove, and it works well. Personally, I just think it looks junky.
Happy tracking!
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