[JayHT]

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I intend to go forward with the installation of the M Performance Raised Wing on my M2C and would like to know if anyone has the stats on the actual downward force that the raised wing exerts at various speeds. I am interested in the actual performance (i.e., function) of the wing as well as its sporty appearance on the vehicle. Is the wing in any way adjustable?

Any factual reference information would be of the utmost importance.

Thanks,
JayHT

[Bumpinjeep]

Well, the only thing on the BMW website states about the aero of the wing is "Thanks to optimized aerodynamics, it noticeably increases the sporty driving behavior."
So to me that just reads "No." I would imagine if there was a tangible difference, BMW would state it, let's say "Adds XXX of downforce to rear of car."

[M2C89]

I would even go as far as to (assume) and say that even IF there was any tangible improvement, you'll hardly get any use out of it at everyday speeds and probably wouldn't be able to tell until after 100MPH or even 150MPH.

This is one of those things that you have to do because you like the way it looks, any performance improvements may be very negligible at best.

That being said, more power to you for not giving a shit what people think about it.... it's not for everyone (myself included), but it's your car!

[goku7]

What if u track the car. I would assume the front lip and rear wing would help with stability ?

[AlpsRider]

AC downforce graph

[DriverDaily]

Isn't that graph showing the lip spoiler? Not the M performance wing?

[Anthony1s]

Originally Posted by M2C89

I would even go as far as to (assume) and say that even IF there was any tangible improvement, you'll hardly get any use out of it at everyday speeds and probably wouldn't be able to tell until after 100MPH or even 150MPH.

This is one of those things that you have to do because you like the way it looks, any performance improvements may be very negligible at best.

That being said, more power to you for not giving a shit what people think about it.... it's not for everyone (myself included), but it's your car!

^^This.

I know in drag racing aerodynamics don't matter until after the first 1/8 mile and later. There's a reason Leroy doesn't have a body and is still competitive.

"areo forces are affected increase with the square of the speed, you will find any aero effects at 50mph are four times as great at 100mph - drag, lift - whatever."

[AlpsRider]

Originally Posted by DriverDaily

Isn't that graph showing the lip spoiler? Not the M performance wing?

It states "rear wing" and "rear spoiler" on the graph

[aerokubectl]

as i always say, no data = only for looks.

That said, you’d be surprised how much aero matters at low speed. We ran full aero on our FSAE car that added about 50-100lbs of weight(total car weight of 350-450 lbs) and saw speeds averaging 40 mph.

You’d be amazed at the decisions you could make with scientific data.

This spoiler may be of benefit or may be just for looks.

[aerokubectl]

Originally Posted by AlpsRider

AC downforce graph

there’s no raw data behind this chart. It gets shared as some kind of source of truth, which is very disingenuous.

If this was any kind of engineering competition/review, it would be laughed out at first sight, but somehow in the car industry we just eat it up.

[AlpsRider]

Originally Posted by spetsnazos

there’s no raw data behind this chart. It gets shared as some kind of source of truth, which is very disingenuous.

If this was any kind of engineering competition/review, it would be laughed out at first sight, but somehow in the car industry we just eat it up.

Nobody said it was the holy Bible, take it or leave it.

[aerokubectl]

Originally Posted by AlpsRider

Nobody said it was the holy Bible, take it or leave it.

Not interested in analogies but if you’re going to make one between a random excel graph and the bible that’s on you.

That chart is designed to deceive, which I will gladly call out.

People on car forums are quick to discount track results from various car reviewers and magazines for obvious errors in experimentation such as:
- Different ambient temperatures
- Different weather conditions
- Tire wear
- Tire inflation
- Different vehicle setups(lack of seats, diff tires/suspension, tunes, etc)

Hell most of this forum has their senses about them not to compare different dynomometer results to each other and to merely look at directionality in results.

Yet when a random manufacturer that doesn’t post test procedures and test setup with anyone and merely posts an excel graph that any 11 year old could’ve put together while snapping pics of their Type R for the instagram profile, we accept it as “close enough”

Companies either post test procedures/raw data or just come out and say “have faith”.

I have a spoiler attached by double sided tape on my car as well but i’m under no illusion that it is generating downforce significant enough to be measured.

[lsbker]

Originally Posted by spetsnazos

Not interested in analogies but if you’re going to make one between a random excel graph and the bible that’s on you.

That chart is designed to deceive, which I will gladly call out.

People on car forums are quick to discount track results from various car reviewers and magazines for obvious errors in experimentation such as:
- Different ambient temperatures
- Different weather conditions
- Tire wear
- Tire inflation
- Different vehicle setups(lack of seats, diff tires/suspension, tunes, etc)

Hell most of this forum has their senses about them not to compare different dynomometer results to each other and to merely look at directionality in results.

Yet when a random manufacturer that doesn’t post test procedures and test setup with anyone and merely posts an excel graph that any 11 year old could’ve put together while snapping pics of their Type R for the instagram profile, we accept it as “close enough”

Companies either post test procedures/raw data or just come out and say “have faith”.

I have a spoiler attached by double sided tape on my car as well but i’m under no illusion that it is generating downforce significant enough to be measured.

In this case the random manufacturer is AC Schnitzer (https://www.ac-schnitzer.de/en/) who I believe to
have a good reputation and history in racing and tuning BMW over a long time period.

I do not disagree with your point but do feel you may have picked the wrong example to make it. I for one have no reason to doubt any claims that they make.

[AlpsRider]

This thread has gone to troll town. I just posted a graph. I made no claims about the background scientific data. Yet the troll town representative has turned it into a dissertation, get a grip.