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Re: Here's one for the spoiler experts.
[Re: charlie_croker]
#1195464
02/04/2011 12:14
02/04/2011 12:14
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proccy
Unregistered
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proccy
Unregistered
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good stuff CC
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Re: Here's one for the spoiler experts.
[Re: Jimbo]
#1195499
02/04/2011 14:26
02/04/2011 14:26
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Joined: Jan 2006
Posts: 3,034 Sweden
Per
I need some sleep
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I need some sleep
Joined: Jan 2006
Posts: 3,034
Sweden
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Here's another: I believe the wind tunnel tests proved the rear spoiler didn't work, the coupé needed the squared off rear end to prevent the body from creating lift. Well no, they did extensive windtunnel experiments on the Coupe (even with long 917-style tails - according to Mr Bangle ). It's true they settled on the "boot"-rear cos the slanted hatchback-rear created too much lift. And they got rid of so much lift they didn't need additional spoiler. That said, a small lip/spoiler like the one pictured will probably work very well, and reduce lift even further.
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Re: Here's one for the spoiler experts.
[Re: Per]
#1195633
02/04/2011 22:24
02/04/2011 22:24
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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a small lip/spoiler like the one pictured will probably work very well, and reduce lift even further. Not really Per, you want the air to separate from the rear of the car cleanly, a spoiler (unless its a wing giving down force) will just make the air more turbulent at the rear which can actually slow the car down.
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Re: Here's one for the spoiler experts.
[Re: ]
#1195976
03/04/2011 21:12
03/04/2011 21:12
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dlongstaff
Unregistered
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dlongstaff
Unregistered
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My M3 spoiler ... fitted for aesthetic purposes only My two pennies, I think that the M3 is the most aesthetic and tempting. The ones at the beginning of the post, look like they have fallen off, just not right. When you see a Supra without a rear wing it just looks odd. So maybe its conditioning, if the coupe came originally with a wing fitted I wouldn't be saying that I think the coupe is one of the sports cars that really dont need a rear wing. Maybe they got it right! unlike the TT? As an aside without going way off THIS is very interesting to watch on its own, but look at the wings front and back about half way through.
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Re: Here's one for the spoiler experts.
[Re: Per]
#1196193
04/04/2011 11:53
04/04/2011 11:53
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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So that's why this kind of spoiler is so frequent on high-end cars like Audi RS-series, BMW M-series and Mercedes AMG-series..? That they're originally too fast..? No really, it helps! Per, The designers of these cars will do wind tunnel testing to make sure the spoilers have the correct effect, they don't just go to Halfords and glue on a spoiler or select one from another make of car and hope it will have the desired effect. Look at the Bugatti, the spoiler is retracted in standard mode and that's speeds up to 137mph, it deploys to give downforce in handling mode and in high speed mode it's flush with the chassis. Each to their own, I personally don't like the look of a wing or spoiler on the coupé but that's a styling choice and it's personal.
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Re: Here's one for the spoiler experts.
[Re: ]
#1196222
04/04/2011 13:16
04/04/2011 13:16
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Joined: Jul 2009
Posts: 2,617 SE Essex
charlie_croker
I need some sleep
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I need some sleep
Joined: Jul 2009
Posts: 2,617
SE Essex
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I know someone involved with design of Mk1 RS Focus and they told me that when they wind tunnel tested those, that the car needed 3BHP less power at 100MPH when fitted with the rear spoiler.
However, each spoiler needs to be wind tunnel tested for the coupe to indicate whether it would aid the Coupe
Happy
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Re: Here's one for the spoiler experts.
[Re: ]
#1196229
04/04/2011 13:23
04/04/2011 13:23
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Joined: Jul 2009
Posts: 2,617 SE Essex
charlie_croker
I need some sleep
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I need some sleep
Joined: Jul 2009
Posts: 2,617
SE Essex
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Also didn't they have to retro fit the little spoiler to all Mk1 Audi TTs together with ESP due to lift off oversteer accidents?
Happy
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Re: Here's one for the spoiler experts.
[Re: ]
#1196265
04/04/2011 14:37
04/04/2011 14:37
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Joined: Jan 2006
Posts: 3,034 Sweden
Per
I need some sleep
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I need some sleep
Joined: Jan 2006
Posts: 3,034
Sweden
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However, each spoiler needs to be wind tunnel tested for the coupe to indicate whether it would aid the Coupe
Well, there are some basic aerodynamic rules which applies to most 3-box cars (which the Coupe essentially is). The release at the end of the Coupe trunklid is a typical situation where you don't really need tests in windtunnels to make some estimations, if you like me, has seen a few before (I work at Volvo Cars, exterior design). Wings however, can do with some testing on the specific car to see if they add downforce or just drag..
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Re: Here's one for the spoiler experts.
[Re: ]
#1196267
04/04/2011 14:43
04/04/2011 14:43
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Joined: Jul 2009
Posts: 2,617 SE Essex
charlie_croker
I need some sleep
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I need some sleep
Joined: Jul 2009
Posts: 2,617
SE Essex
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But surely the lip at bottom of rear bumper fulfils that role?
rAzOr_20vt I like that spoiler, can you post some more pics as I am considering the M3 spoiler for my Sprinty. It looks good, very good in fact!
Happy
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Re: Here's one for the spoiler experts.
[Re: ]
#1196276
04/04/2011 14:59
04/04/2011 14:59
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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Yeah no problem mate, i'll post some pictures later tonight.
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Re: Here's one for the spoiler experts.
[Re: ]
#1196312
04/04/2011 16:00
04/04/2011 16:00
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Joined: Jul 2009
Posts: 2,617 SE Essex
charlie_croker
I need some sleep
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I need some sleep
Joined: Jul 2009
Posts: 2,617
SE Essex
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Per, that looks great, your coupe looks pretty awesome, can you post a photo from straight behind? As if being followed by another car?
Happy
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Re: Here's one for the spoiler experts.
[Re: ]
#1196357
04/04/2011 18:47
04/04/2011 18:47
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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Re: Here's one for the spoiler experts.
[Re: ]
#1196367
04/04/2011 19:03
04/04/2011 19:03
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Joined: Jul 2009
Posts: 2,617 SE Essex
charlie_croker
I need some sleep
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I need some sleep
Joined: Jul 2009
Posts: 2,617
SE Essex
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rAzOr_20vt That's made my mind up for me, I will be getting an M3 spoiler! Cheers for the photos, that looks awesome
Happy
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Re: Here's one for the spoiler experts.
[Re: ]
#1196368
04/04/2011 19:06
04/04/2011 19:06
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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very good choice and thanks very much lol
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Re: Here's one for the spoiler experts.
[Re: ]
#1546574
07/08/2015 19:30
07/08/2015 19:30
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Joined: Oct 2009
Posts: 296 Boston, UK
Spoonz
Making a profit
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Making a profit
Joined: Oct 2009
Posts: 296
Boston, UK
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Last edited by Spoonz; 07/08/2015 19:31.
Signature to large. 300 x 100 max
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