Darkspeed
Club Retro Rides Member
Posts: 4,848
Club RR Member Number: 39
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Nov 20, 2018 13:27:25 GMT
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Last Edit: Nov 20, 2018 13:30:31 GMT by Darkspeed
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Nov 20, 2018 16:17:34 GMT
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There aren't many surfaces on an F1 car that aren't creating downforce or controlling flow and they aren't too bothered about drag, but I get your point.
Just chewing the cud, thinking about gaining that extra 0.5%
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tristanh
Part of things
Routinely bewildered
Posts: 990
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Nov 20, 2018 16:20:19 GMT
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Oh for sure. I'm not convinced about the dimples working on anything other than a spinning golf ball though the. You simply don't see them anywhere else, not on aircraft, bullets, in professional race engine ports etc.
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Whether you believe you can, or you cannot, you're probably right.
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Nov 20, 2018 16:41:48 GMT
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Aircraft, agreed, bullets, agreed. However, dimples have been used in engine intake tracts with some gains measured.
I will probably stick to traditional vortex generators, easier to fit and we know that they work :-)
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hoody
Part of things
Posts: 44
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Nov 20, 2018 16:44:22 GMT
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Nov 20, 2018 18:32:42 GMT
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Oh for sure. I'm not convinced about the dimples working on anything other than a spinning golf ball though the. You simply don't see them anywhere else, not on aircraft, bullets, in professional race engine ports etc. It’s used a bit in high end road bicycle stuff; frames, wheels, helmets, clothing.
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Nov 20, 2018 22:47:23 GMT
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Oh for sure. I'm not convinced about the dimples working on anything other than a spinning golf ball though the. You simply don't see them anywhere else, not on aircraft, bullets, in professional race engine ports etc. It’s used a bit in high end road bicycle stuff; frames, wheels, helmets, clothing. But you have to wonder how much serious wind tunnel testing has been undertaken.
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Nov 20, 2018 23:34:10 GMT
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It’s used a bit in high end road bicycle stuff; frames, wheels, helmets, clothing. But you have to wonder how much serious wind tunnel testing has been undertaken. I have to say that the cycle industry is never one to shy away from using a gimmick, that might just bring a perceived advantage, in order to sell stuff. From the same people who brought you things like these....
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Nov 20, 2018 23:52:38 GMT
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But you have to wonder how much serious wind tunnel testing has been undertaken. I have to say that the cycle industry is never one to shy away from using a gimmick, that might just bring a perceived advantage, in order to sell stuff. From the same people who brought you things like these.... Ohhh, that looks technical so it must work :-)
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I have to say that the cycle industry is never one to shy away from using a gimmick, that might just bring a perceived advantage, in order to sell stuff. From the same people who brought you things like these.... Ohhh, that looks technical so it must work :-) 😂 team Sky used it for their TT skinsuits so I imagine they wind tunnel tested it. I think I saw a video about it. I’m also fairly sure those suits got banned so there must have been something in it. Although it may have been a psychological advantage.
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Ohhh, that looks technical so it must work :-) 😂 team Sky used it for their TT skinsuits so I imagine they wind tunnel tested it. I think I saw a video about it. I’m also fairly sure those suits got banned so there must have been something in it. Although it may have been a psychological advantage. The suits work. Swimmers used them until they were also banned. Skiers also used them until banned because when they fell over they didn't stop due to the reduced friction between suit and snow!
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Last Edit: Nov 21, 2018 11:15:28 GMT by nalesutol
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Nov 26, 2018 22:45:49 GMT
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OK, don't laugh, I am looking for a rear splitter/wing lifting mechanism, similar to that fitted to the Porsche 986 Boxster. Not the wing, just the lifting mechanism. As it will be extensively modified, it just needs to be in full working order.
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jpr1977
Club Retro Rides Member
Posts: 656
Club RR Member Number: 18
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Nov 27, 2018 10:21:41 GMT
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I initially looked at the Corrado unit as my daughter used to own one. However they seem to be around £200 whereas the Boxster ones, as you point out, are around £40! I guess there are more Boxsters being broken than Corrados :-) Are there any others out there that have a faster deployment?
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jpr1977
Club Retro Rides Member
Posts: 656
Club RR Member Number: 18
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Nov 27, 2018 10:59:34 GMT
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Not too sure if those installed on TT's / A7, BMW GT's or the like are any quicker?
How quick do you need?
Could you do something spring loaded/hydraulic like the old Merc's R129's used for their role hoops which deployed in under a second in an emergency.
Or just thinking aloud, a spring loaded spoiler linked to a speed sensor activated micro switch which could be manually reset after deployment for minimum mechanisms?
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Last Edit: Nov 27, 2018 11:04:36 GMT by jpr1977
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Nov 27, 2018 12:57:49 GMT
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Not too sure if those installed on TT's / A7, BMW GT's or the like are any quicker? How quick do you need? Could you do something spring loaded/hydraulic like the old Merc's R129's used for their role hoops which deployed in under a second in an emergency. Or just thinking aloud, a spring loaded spoiler linked to a speed sensor activated micro switch which could be manually reset after deployment for minimum mechanisms? The bar didn't fair too well in the roll over test :-) I have been playing around with ideas for a year or so. I am looking for a system that both operates the wing quickly for emergency braking but is also adjustable so the wing can be used for downforce. Electric will cope with the adjustability side of things but they tend to be slow. Pneumatics work very quickly but difficult to make adjustable. So far the Boxster is the best that I have found that I can see working on YouTube. I will investigate the options you have suggested, thanks.
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Nov 27, 2018 19:36:00 GMT
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Bugatti Veyron rear spoiler mech does all you want
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Nov 27, 2018 19:44:39 GMT
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Oh for sure. I'm not convinced about the dimples working on anything other than a spinning golf ball though the. You simply don't see them anywhere else, not on aircraft, bullets, in professional race engine ports etc. The Bimmer E34 wagon we had in England had dimples on the inside faces of the of the wing mirror bodies to smooth airflow through the gap between the mirrors and the window frame. I always giggled at this fact when you look at the slab front of an E34. EDIT; it was probably to make things quieter? But they were there for a reason.
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Last Edit: Nov 27, 2018 19:45:56 GMT by yoeddynz
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tristanh
Part of things
Routinely bewildered
Posts: 990
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They're not on my e39 m5... So maybe they decided it didn't work?
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Whether you believe you can, or you cannot, you're probably right.
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pathnx
Part of things
Posts: 19
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TT 8J is definitely faster:
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