Roof Spoiler functionality

kpjo4 · 10-21-2012, 07:45 PM

Does anyone know if the AC Schnitzer roof spoiler is actually engineered for high speeds or is it mainly aesthetic?

Here is a picture of it and it seems to be the most common roof spoiler I see on E9X cars.

Eric335 · 10-21-2012, 09:14 PM

I doubt it creates much difference. You would benefit more from suspension upgrades than a roof-spoiler for high-speed stability. Unless we are talking like 170+ mph, in which case it might create a few extra lbs of downforce, still not worth it at a performance perspective. Also, i wouldnt say that it is a performance inhibitor either. Having your windows down would influence your aerodynamics more than having this or not having this.

My $0.02, which you can take with a grain of salt.

abhishriv · 10-21-2012, 09:51 PM

just for looks

Thumperx · 10-27-2012, 05:38 PM

Quote:

Originally Posted by abhishriv

just for looks

I admit. I have one, and it just for looks.

#-JONAS-# · 10-27-2012, 06:44 PM

Looks only.

Crusader · 10-27-2012, 07:31 PM

Can't speak for the roof spoiler, but the OEM trunk spoiler allegedly kills 50 lbs of lift @ 100 mph.

edirtaynine · 10-28-2012, 04:47 AM

it's engineered to fuck up the rain water and have it swirl around the window instead of running off.

kpjo4 · 10-28-2012, 01:16 PM

Quote:

Originally Posted by Crusader

Can't speak for the roof spoiler, but the OEM trunk spoiler allegedly kills 50 lbs of lift @ 100 mph.

the m3 oe one?

10-21-2012, 07:45 PM	#1
kpjo4 Jo Who? JOYU! 31 Rep 168 Posts Drives: 2010 335ic Crimson Join Date: Dec 2011 Location: Centex iTrader: (1)	Roof Spoiler functionality Does anyone know if the AC Schnitzer roof spoiler is actually engineered for high speeds or is it mainly aesthetic? Here is a picture of it and it seems to be the most common roof spoiler I see on E9X cars.
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10-21-2012, 09:14 PM	#2
Eric335 Colonel 130 Rep 2,489 Posts Drives: 2007 E92 SG 335i 6MT Join Date: Apr 2011 Location: SW Florida iTrader: (0) Garage List 2007 BMW 335i [7.66]	I doubt it creates much difference. You would benefit more from suspension upgrades than a roof-spoiler for high-speed stability. Unless we are talking like 170+ mph, in which case it might create a few extra lbs of downforce, still not worth it at a performance perspective. Also, i wouldnt say that it is a performance inhibitor either. Having your windows down would influence your aerodynamics more than having this or not having this. My $0.02, which you can take with a grain of salt. __________________
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10-21-2012, 09:51 PM	#3
abhishriv Major 100 Rep 1,384 Posts Drives: 2007 335i Coupe (Space grey) Join Date: Oct 2011 Location: Toronto iTrader: (0)	just for looks
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10-27-2012, 06:44 PM	#5
#-JONAS-# Private 9 Rep 98 Posts Drives: E92 320D BLACK Join Date: Oct 2012 Location: Spain iTrader: (0)	Looks only.
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10-27-2012, 07:31 PM	#6
Crusader Private First Class 15 Rep 157 Posts Drives: E92 M-sport Join Date: Feb 2011 Location: Southeast iTrader: (0)	Can't speak for the roof spoiler, but the OEM trunk spoiler allegedly kills 50 lbs of lift @ 100 mph.
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10-28-2012, 04:47 AM	#7
edirtaynine Major General 81 Rep 6,092 Posts Drives: e92 Join Date: Mar 2011 Location: SoCal iTrader: (0)	it's engineered to fuck up the rain water and have it swirl around the window instead of running off. __________________ e90post killed plastidip Just say no to painted stock wheels jm3as hooks it up
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