Rear wing options???
03-02-2009, 07:32 PM
#138
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Thread Starter
That's a bit of a coincidence re the widths, maybe too much to ignore, but is there a downside to going that wide...apart from reverse parking
03-02-2009, 07:39 PM
#139
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03-02-2009, 08:44 PM
#140
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Ok we've decided to give one of these a go as they're so much cheaper than some of the uber ones available from Overseas.
So there are 3 to choose from. One is 138cm/54" wide, the next 142cm/55", and the next is big at 173cm/68" wide. The large one is about a $1000 locally and the others are $450 -$500Au. They're 100% c/f and the finish looks pretty good in the pics. Obviously we'll have to make up the mounts and struts but which one do we go for?
Is bigger always better? How wide are our cars btw? I would think the larger the wing the more solid the supports need to be.
So there are 3 to choose from. One is 138cm/54" wide, the next 142cm/55", and the next is big at 173cm/68" wide. The large one is about a $1000 locally and the others are $450 -$500Au. They're 100% c/f and the finish looks pretty good in the pics. Obviously we'll have to make up the mounts and struts but which one do we go for?
Is bigger always better? How wide are our cars btw? I would think the larger the wing the more solid the supports need to be.
03-02-2009, 09:11 PM
#141
Rivets are very likely to cause cracks in lexan. The holes should be bigger than the fasteners. Some of the really nice cars in this thread look like the hatch is glued. What is the glue of choice? I've made an aluminum cover that overlaps the rear end of the hatch glass and is screwed to the frame, glued to the glass.
03-02-2009, 09:25 PM
#142
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03-02-2009, 09:27 PM
#143
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Thread Starter
Rivets are very likely to cause cracks in lexan. The holes should be bigger than the fasteners. Some of the really nice cars in this thread look like the hatch is glued. What is the glue of choice? I've made an aluminum cover that overlaps the rear end of the hatch glass and is screwed to the frame, glued to the glass.
03-02-2009, 09:36 PM
#144
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03-02-2009, 09:49 PM
#146
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Thread Starter
My guess it's a Chinese copy so they probably haven't done any design work so to speak, just copied someone else's design. I would bet that it's never been anywhere near a windtunnel. Though it looks pretty similar to some other designs.
03-02-2009, 10:14 PM
#148
Drifting
Well heres a good picture to compare yours to:
That wing has been in the windtunnel. It obviously has the upper element but the base element works by itself(at a higher angle of attack), so you can look at that one for comparison.
Another example (drool on the seat!)
More of a traditional airfoil:
That wing has been in the windtunnel. It obviously has the upper element but the base element works by itself(at a higher angle of attack), so you can look at that one for comparison.
Another example (drool on the seat!)
More of a traditional airfoil:
03-02-2009, 10:25 PM
#149
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Thread Starter
Nice pics! Well from what I can see, these cheap ones do mimic the expensive ones to some degree so I'll give it a go.
Yup, nice seat too.
Yup, nice seat too.
03-02-2009, 10:33 PM
#150
Drifting
I think your major decision from there is which wing to go with- conventional airfoil style or the newer 3D style.
Most GT cars other than Super GT/GT300 (JGTC) use a large airfoil with multiple elements. I would imagine a lot of it has to do with the overall aerodynamics of the car.
You would think our cars are probably pretty close aerodynamically to an rx7. The re amemiya gt300 car uses somewhat of a mix between a 3D wing and an airfoil. Heres a picture:
Most GT cars other than Super GT/GT300 (JGTC) use a large airfoil with multiple elements. I would imagine a lot of it has to do with the overall aerodynamics of the car.
You would think our cars are probably pretty close aerodynamically to an rx7. The re amemiya gt300 car uses somewhat of a mix between a 3D wing and an airfoil. Heres a picture: