57 replies to this topic

[The Batman]

Bored at work

So been lookin ay various exige/Elise websites lately at bodywork mods to improve cornering/downforce/aerodynamics and have seen a few websites that sell canards and side skirts like this below:



Now as said in a previous thread I have no idea about aero etc so was wondering if the people that do can answer a few questions for me.

What is the benefit of the side skirts?
What is the optimum angle/size for the canards?

Many thanks and await being slated

[vocky]

You must be seriously bored

[The Batman]

Oh yes just looking for things to keep me busy I haven't touched my Vx in weeks!

[slindborg]

find out who the PCM person is you lazy mofo.

[FLD]

Side skirts extend the flat area of the floor. Especially on an elise / exige with their very curved in sill sections. On the VX squaring off the sill section to prevent bleed from sides under the car. Might want a small, flat side piece. Generally the bigger canards are the more downforce but also the more drag you have. How about a front diffuser? Thats what my mk2 splitter will incorperate.

[Goosenka]

Sorry I thought this was about ducks and chicks in mini skirts

[Muncher]

[FLD]

Thats nice.

[slindborg]

Edited by slindborg, 30 August 2011 - 09:05 PM.

[Muncher]

~£300 per pair plus VAT. Here's the wind tunnel data for them: http://www.reverie.l...est_Session.pdf

[The Batman]

Do they have any info on them like size or angle? Pictures look great but don't tell me anything So what do you reckon? A slight skirt possibly 50-75mm? Edit - will do some reading on that PDF cheers buddy

Edited by joe_589, 30 August 2011 - 09:08 PM.

[slindborg]

~£300 per pair plus VAT.

Here's the wind tunnel data for them:

http://www.reverie.l...est_Session.pdf

cant possibly have real test data here... must be roundabouts only!

[The Batman]

If someone can tell me what the vest angle and size is that would be great as it all looks foreign

[slindborg]

If someone can tell me what the vest angle and size is that would be great as it all looks foreign

vertical and about 1sqM should do it per side

[techieboy]

I did some reading on canards when I picked a pair up on eBay and as far as I could tell, the angle of attack needed to be at least 15° and upto as much 45°. They're not meant to add front downforce (so it's not like getting the correct angle on the rear wing) but rather, they're meant to stall and separate the air into two streams of air along the side of the car, one of which is meant to go up and over the rear of the car and one along the lower side of the car. That, of course, could be total bollox and me totally misunderstanding the reams of stuff I tried to read. Maybe hope Winstar or somebody else with a grasp of aerodynamics comes along soon.

[The Batman]

That makes making them very easy slindy Hmm cheers for that techie that makes 30' a happy medium I was kinda hoping Winstar would pop up and make my life easy

[Winstar]

I did some reading on canards when I picked a pair up on eBay and as far as I could tell, the angle of attack needed to be at least 15° and upto as much 45°. They're not meant to add front downforce (so it's not like getting the correct angle on the rear wing) but rather, they're meant to stall and separate the air into two streams of air along the side of the car, one of which is meant to go up and over the rear of the car and one along the lower side of the car.

That, of course, could be total bollox and me totally misunderstanding the reams of stuff I tried to read.

Maybe hope Winstar or somebody else with a grasp of aerodynamics comes along soon.

I think they are to add down force in this application, on F1 cars they are oftern used to divert airflow from the front wing.

From the data I've seen on the VX it's not short on front downforce compared to rear would be better spending your time trying to reduce the drag from the blunt front end. Plus due to the shape of the vx I doubt you'd get them big enough and still be able to get it through a MOT

[The Batman]

Mot isn't a problem especially for Jjj race car etc How big we talking? What do you think should be done to reduce front drag?

[Mangham54]

Mot isn't a problem especially for Jjj race car etc

How big we talking?

What do you think should be done to reduce front drag?

Fit the nose of an Exige.

[Nev]

Joe, whats the delay on your car ATM, I thought u were pretty close to completion?