# E90/92's and the functionality of big wings

**URL:** <https://forums.speedlife.net/t/e90-92s-and-the-functionality-of-big-wings/266836>\
**Category:** Shift518 Automotive\
**Created:** [April 22, 2013, 12:31pm UTC](https://forums.speedlife.net/t/e90-92s-and-the-functionality-of-big-wings/266836 "2013-04-22T12:31:07Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![MSport1223](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/msport1223/32/6735_2.png) [@MSport1223](https://forums.speedlife.net/u/MSport1223)\
**Post date:** [April 23, 2013, 7:44am UTC](https://forums.speedlife.net/t/e90-92s-and-the-functionality-of-big-wings/266836/16 "2013-04-23T07:44:45Z")

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> [@So - you sell a car with a lien on it](https://forums.speedlife.net/t/so-you-sell-a-car-with-a-lien-on-it/52459/11):
>
> and what speeds do you think he needs to reach in order to gain benefit?

In what type of corner? The fast sweeper at Lime Rock, or something like turn 1?

All he would need is an M3 rear lip in my opinion. The car doesn’t have a front splitter or under body, and that would help his cause.

It’s entirely based on airflow over and under the car. For this example however, we would be discussing the over aspect.

All the large rear wing would do would be to create drag because the car isn’t as streamlined as something such as a GT car in the ALMS series. It’s all up to how well you can make a car move through the air that it’s pushing around.

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