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Discussion Starter · #1 ·
Just installed this Rear Trunk Lip Spoiler with Square Edge and 1 3/4" Flared up end in Matte Black to match up with my Matte Black Vinyl wrap.

Simply clean up the the Trunk Spoiler than used double sided 3M Tape to install.

Not a bad looking low cost upgrade :D
 

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Disciple of Chapman
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love the wrap:clap:

rear lip spoiler:shrug:
 

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Can't say I like it!
 

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Just installed this Rear Trunk Lip Spoiler with Square Edge and 1 3/4" Flared up end in Matte Black to match up with my Matte Black Vinyl wrap.

Simply clean up the the Trunk Spoiler than used double sided 3M Tape to install.

Not a bad looking low cost upgrade :D
What material is the Rear Trunk Lid Spoiler made of ? Vinyl, rubber, or ?
Where did you purchase it ?
 

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Discussion Starter · #5 ·

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And what affect does it have on the aero??? Didn't know a Gurney flap was needed on Evora
 

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IMHO not helping the look. Looks like a 90's add on. Sure I'm not alone just being honest
 

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Let me start by saying I am not an aerodynamics specialist, but I will say what I have heard/seen/read of on the forums, net, and track/autox days.

What you installed was/is a Gurney Flap more or less, not quite as extreme, but close enough to call it one. And from my understanding, it actually increases the downforce and drag pretty significantly considering how small it is.

There was a guy a few years back who ran an exige as an Auto X vehicle, and did a bit of experimenting on his vehicle for best aerodynamic results. He found that removing the factory wing (for auto X) and replacing it with a 1/3 gurney flap on either side of the rear end (leaving the center section clear of anything) gave the exige the most planted feel for his style of driving at such slow speeds (i.e. auto X course).

So where it does look 90s, it supposedly adds a bit to the aerodynamics/stability of the vehicle in a very subtle way.
 

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Discussion Starter · #11 ·
Let me start by saying I am not an aerodynamics specialist, but I will say what I have heard/seen/read of on the forums, net, and track/autox days.

What you installed was/is a Gurney Flap more or less, not quite as extreme, but close enough to call it one. And from my understanding, it actually increases the downforce and drag pretty significantly considering how small it is.

There was a guy a few years back who ran an exige as an Auto X vehicle, and did a bit of experimenting on his vehicle for best aerodynamic results. He found that removing the factory wing (for auto X) and replacing it with a 1/3 gurney flap on either side of the rear end (leaving the center section clear of anything) gave the exige the most planted feel for his style of driving at such slow speeds (i.e. auto X course).

So where it does look 90s, it supposedly adds a bit to the aerodynamics/stability of the vehicle in a very subtle way.

Thank you Giantmcm for sharing the info's

I like it BECAUSE it's different.

Thanks for sharing.

You are welcome Plackslayer, regardless I like it too :)
 

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There was a guy a few years back who ran an exige as an Auto X vehicle, and did a bit of experimenting on his vehicle for best aerodynamic results. He found that removing the factory wing (for auto X) and replacing it with a 1/3 gurney flap on either side of the rear end (leaving the center section clear of anything) gave the exige the most planted feel for his style of driving at such slow speeds (i.e. auto X course).
Placebo effect. If you're lucky, a road car gurney / spoiler / wing produces a couple pounds of downforce at autocross speeds. Aerodynamic forces go up with the square of speed. A 90s Indycar in roadcourse trim would generate in round numbers 5000lbs of downforce at 200mph (giant wings & full tunnels). That means at 40 mph it would generate 200lbs. A gurney on the back of an Exige probably weighs more than the downforce it creates.
 
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