wing comments, rear wing Options

[Glenn832]

This is just a fantastic forum! Being quite the newb, forgive me if I'm on the wrong thread. I need some advise and I know that it'll be freely if not copiously given. I like it already!

We've got a '74 that, at the moment, is in pieces. It's a street/track (little more focus on the track) baby that is getting some minor additions to help with high speed stability. One is the addition of a rear wing. There are two choices. As you can see from the pics, it's not pretty but at this point that's not the point.

What do you think about aerodynamics/functionality and also aesthetics?

[Joe Ricard]

My car is 5 MPH faster with wing and air dam than without and a heck of a lot more stable. Also bumped MPG so it's really not a fluke. Real air foils don't need a huge angle of attack to be effective.

Yes this very same wing mounted on a civic hatch with 10 degrees of angle slowed his car down 7 MPH.

I run my wing about 2 or 3 degrees high speed 100 + and crank it up high for Autocross. It has lees effect under 60 MPH.

[Glenn832]

My car is 5 MPH faster with wing and air dam than without and a heck of a lot more stable. Also bumped MPG so it's really not a fluke. Real air foils don't need a huge angle of attack to be effective.

Yes this very same wing mounted on a civic hatch with 10 degrees of angle slowed his car down 7 MPH.

I run my wing about 2 or 3 degrees high speed 100 + and crank it up high for Autocross. It has lees effect under 60 MPH.

For byndbad914 and joe, question:

What distance are you running your front dam/splitter off the ground for maximum effect? And how long/wide does a splitter have to be to effectively prevent air from "rolling" under the air dam?

We're in the midst of constructing a dam for the street with adequate clearance and then have an extension that would be even lower that would have the splitter attached to that to give us the required ground effects.