Project: Del Sol Kammback Trial Mockup
 

So I got the idea of putting a kammback on the back of my Del Sol thanks to some senior members of this forum. Here's what I was able to do with a couple hours of time and cardboard.

Do you guys think its worth continuing (perfecting?)

Pics continued

pics continued 01

Pics continued 02

What's the angle on it? It would be worth fiberglassing with a lexan window for sure if the airflow is attached. Nice work!

PS: I think the angle might be a little too steep. Run some tuft testing trials and see.

Angle from roof to trunk is approx 14*.

My first concept image has an angle of 11*.

PS: I haven't done anything scientific about this project, I was just testing a mockup to see if it's worth continuing.

Thanks for all of your input.

great :thumbup:

do you feel a difference in your car behavior ?

With my rear wheel skirts, the car coasts longer and I feel the car more nervous.

Denis.

PS I note the idea of using double side tape to second the single side tape to attach the coroplast more securely when I'll try a coroplast kammback.

Hi,

It might help to try and curve the initial transition off the back of the roof?

Clear engine lid cover/fastback style for the MR2? - NASIOC

The rear window area of a Del Sol is similar to an SW20 MR2. Check out what the MR2 guys in Japan have done. You won't need slots because you don't have a hot engine back there. ;)

Hm... amazing how the DelSol starts looking like a CRX when you put a kamm on it...

Looks great! I don't think Lexan would be too far off for a good looking customization that would also improve aero substantially.