Fenders?
- Thread starter bracketracer
- Start date
About what length do you use for front and back? About how far from the front do you drill the axle hole?
I don't use a template. Trial and error process works for me. You can always purchase a set from DD4H and then use that as a template for your future fenders.
resullivan said:
On a Street Stock car with rear fenders only,
what effect on performance do you think rear fenders would have that went over the top and behind the rear wheels? The fenders would just be tall enough to make it over the top of the wheel so they would not act as sails as 5Kids pointed out in a previous post.
what effect on performance do you think rear fenders would have that went over the top and behind the rear wheels? The fenders would just be tall enough to make it over the top of the wheel so they would not act as sails as 5Kids pointed out in a previous post.
- Nov 24, 2011
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They would be slower than if they didn't go over the top. Were talking 10 mph not super sonic.
tmeyer said:
- Nov 24, 2011
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DerbyDad4Hire said:
+1. And I think they need to be parabolic, not pointed. Think jumbo jet nose, not fighter jet nose.
@bracketracer, unless I'm misunderstanding you, all real world trailing edges in aviation seem to come to a point rather than a parabola to minimize drag and reduce the turbulence caused by splitting the air in the first place (if you're referring to extending the rear fender behind the wheel). If you mean the leading edge of the rear fender it appears to me that most of the fastest racers have it in a point.
bracketracer said:
- Nov 24, 2011
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You need to realize there's a huge difference between a 10 mph derby car and a 500 mph aircraft. There are trade offs. Keep the wheels back as far as possible and forget about the trailing edge of a wheel.
P.S. I work on aircraft.
P.S. I work on aircraft.
jator359 said:
Yes, I was referring to the leading edge being a parabolic shape. I'm going to make the trailing edge come to a point. Kinser's right, though. By the time you get them (leading and trailing fenders) to an optimal shape, they are too heavy to retain a benefit.
I was actually thinking of making them hollow and capping the inside with some thin plywood. The Michael's store near me sells birch plywood down to 1/64. I could try balsa, I haven't really messed with it. I saw some guys on the internet rubbing it down with CA glue and then sanding it. Got any tips?
I have built and bought all kinds of fenders, from balsa to foam and I am telling you now that you look at the cost of DD4H fenders and think WOW that is a lot of money??? But you spend the next week building your own fenders and sometimes they break just when you are almost done, or the right does not match the left, etc. At the end of the week your time has to be worth something and then add the cost of the materials you bought...In my case it was WAY cheaper and faster to put on a set from the Godfather himself DD4H!!! All you have to do is stick them on and your done! Best of luck to you!
bracketracer said:
Heck Chief, I need something to keep me busy until next fall! It's just one more unfinished project on my list! Stephen
