Seven Speed carbon wishbone aerofoils

[boss351]

Has anyone used the Seven Speed wishbone aerofoils on their wide-track seven? I am interested on before/after handling comparison for the track.

Though there are many ways to work on many things handling, my car is pretty well how I'd like it but still with some understeer that I don't think will take much to cure (I'd like a less stout front sway bar but I don't think there are any options for an SV.

These are the aerofoils I am interested in hearing about:

sevenspeed aerofoils

[BertBert]

If you like cosmetic stuff then fine. As for...

snakeoil salesperson said:

Aerodynamically designed to promote downforce

Hohohohehehe

[boss351]

BertBert said:

Hohohohehehe

This is why I ask before buying!

I am doubtful of it making a significant difference but I'd sure like to hear from someone that has them!

[Dave J]

they do realy add downforce ..... 14g per wishbone!!

you will have to re conerweight to allow for the reduced sprung weight from your wallet

[LostCroc]

Just between us girls, I am as much of a carbon tart as anyone and I did not buy them as I just did not think they add anything functional to the seven. They look pretty though.

I tried a set of my own crudely shaped polycarbonate versions to test the theory on my own local track before I bought the carbon version (as a side note - never use your oven for this while the girlfriend is at home!). Personally, I could not tell the difference with them on/off unlike other aerodynamic modifications I ended up making after some experimentation on track with my polycarb versions and an earlier 3 hour session in a university wind tunnel with my seven, some cardboard, some masking tape, 2 geeky students and 2 cases of beer(for the students).

I did read on USA7s that someone did buy a set but found they would not fit a aero sectioned A arm/wishbone as they are profiled to fit a round cross-section A arm/wishbone.

[boss351]

Thanks Croc for your input.. Cheers.

[coppice]

Blown diffuser is what you need on a Seven- it's such an aerodynamic masterpiece that it deserves nothing less.