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-   -   do ef hatches and crx's hve bad aerodynamics? (https://www.honda-acura.net/forums/crx-and-pre-92-civic/174227-do-ef-hatches-and-crxs-hve-bad-aerodynamics.html)

Mackenzie C Jan 28, 2005 06:07 PM

do ef hatches and crx's hve bad aerodynamics?
 
like in a highway race would the shape of the car slow it down?

bluetwo Jan 28, 2005 06:22 PM

Yes. In a manner of speaking. All cars are drag limited even the supercars who are supposed to be good for three hundred or whatever.
That's not to say that they are areodynamically crappy, but just yeah. It's a factor.
I think lowered cars have a little less drag but don't quote me on that.

Kai Jan 28, 2005 06:31 PM

You'll run into drag problems around twice the legal speed limit. You don't need to be going that fast.

The coefficient of drag for the hatchbacks is right around .33.

For reference, my RX-7 comes in at ~.30 (.29 if some of the original aero parts didn't rust off,) and the Honda Insight comes in at .25. A Miata, with the top down, is around .38.

All in all, the EF body cars have decent aerodynamics.

Exempt Jan 28, 2005 06:51 PM

I can tell u this, my old car was an E30 BMW (1984 318i)... When I would drive on the hwy on windy days, from the boxiness body of the car, I feel the car being pushed around... In my CRX, I dont have that problem at all...

ED9man Jan 28, 2005 07:45 PM


Originally Posted by Kai
You'll run into drag problems around twice the legal speed limit. You don't need to be going that fast.

The coefficient of drag for the hatchbacks is right around .33.

For reference, my RX-7 comes in at ~.30 (.29 if some of the original aero parts didn't rust off,) and the Honda Insight comes in at .25. A Miata, with the top down, is around .38.

All in all, the EF body cars have decent aerodynamics.

Is the CRX better? I used to know the spec. Is it .30 for the Si and the HF is .29?

Also what exactly is the drag coefficent?

Kai Jan 28, 2005 07:58 PM


Originally Posted by ED9man
Is the CRX better? I used to know the spec. Is it .30 for the Si and the HF is .29?

Yes, .29 for the HF, .30 for the others.

Originally Posted by ED9man
Also what exactly is the drag coefficent?

It's a number where the smaller, the better. :chuckles:

I gave up on math and physics a couple years ago. Cd is some annoying shiz.

Here's a link:
http://www.google.com

:oh:

Mackenzie C Jan 30, 2005 03:44 PM

what about the eg hatches and 5th gen vics?


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