Any road tests on e92 w/ sunroof?

ZenGuy · 08-30-2011, 09:44 PM

Does anyone know if one of the mags or webistes out there have done a road test on a e92 with sunroof? I'm just curious as to how it the numbers would compare to an e92 with CF, an e92 with comp pkg, etc.

Thanks

Team Plutonium · 08-30-2011, 10:00 PM

Quote:

Originally Posted by ZenGuy

Does anyone know if one of the mags or webistes out there have done a road test on a e92 with sunroof? I'm just curious as to how it the numbers would compare to an e92 with CF, an e92 with comp pkg, etc.

Thanks

There really is no difference.

1MOREMOD · 08-30-2011, 10:01 PM

CF roof adds 75whp.

ZenGuy · 08-31-2011, 09:51 AM

Quote:

Originally Posted by SehrSchnell

There really is no difference.

ok, I was just curious becasue I've seen some on here say there is a major difference while some say there is none at all.

Team Plutonium · 08-31-2011, 10:07 AM

Quote:

Originally Posted by ZenGuy

ok, I was just curious becasue I've seen some on here say there is a major difference while some say there is none at all.

The weight saving is minimal... not really enough to feel it. I highly doubt that anybody here could feel the difference on the track let alone during daily driving. If you are concerned go on a diet and loose a couple pounds to make up for it.

luis_m3 · 08-31-2011, 01:57 PM

Quote:

Originally Posted by chriszeh

CF roof adds 75whp.

Lol

jphughan · 08-31-2011, 02:06 PM

There isn't an appreciable performance difference, unless MAYBE you're a pro racing driver.

The most common reasons most people go for the moonroof seem to be:

1. They don't like the look of CF with their exterior color.
2. They want to be able to open their roof.
3. There's less road noise with a moonroof than CF.

The most common reasons most people go for the CF roof seem to be:

1. It looks cool and isn't a common feature of cars in this segment.
2. They want the additional headroom.
3. It's known to cause speed.

Poofyo101 · 08-31-2011, 02:11 PM

Quote:

Originally Posted by jphughan

There isn't an appreciable performance difference, unless MAYBE you're a pro racing driver.

The most common reasons most people go for the moonroof seem to be:

1. They don't like the look of CF with their exterior color.
2. They want to be able to open their roof.
3. There's less road noise with a moonroof than CF.

The most common reasons most people go for the CF roof seem to be:

1. It looks cool and isn't a common feature of cars in this segment.
2. They want the additional headroom.
3. It's known to cause speed.

+1

MEMMEZZ · 08-31-2011, 02:16 PM

Quote:

Originally Posted by ZenGuy

Does anyone know if one of the mags or webistes out there have done a road test on a e92 with sunroof? I'm just curious as to how it the numbers would compare to an e92 with CF, an e92 with comp pkg, etc.

Thanks

its about the same difference as whether u went to the bathroom or not before you drive.

Poppin Fresh · 08-31-2011, 02:28 PM

CF = because race car.

Twinbo · 08-31-2011, 03:43 PM

The above posters have all stated the important stuff. I would say if you track the car go CF because if you're tall, your helmet may hit the roof but if this is a DD/Weekend ride then I wouldn't be concerned from a performance perspective.

Also, depending on exterior colour you may want CF (Melbourne Red, Alpine White, Silverstone, Space Grey). The lighter colours make the roof pop. In my opinion the darker colour don't matter as much (Jerez, Black, Interlagos etc).

Mr. ///M3 RD · 08-31-2011, 03:46 PM

Quote:

Originally Posted by SehrSchnell

There really is no difference.

I have to agree having driven a e46 for many years with a sunroof and having not used it very often.

I purchase a new M3 with CF roof again in a heart beat it is a much better looker, lowers the centre of gravity and is lighter as well

so there you have it

1Sleeper · 08-31-2011, 03:55 PM

Quote:

Originally Posted by chriszeh

CF roof adds 75whp.

^This. I have an E90 but I added a bunch of CF junk so really I got the benefit of 4 doors AND the added horsepower of CF. You just have to be smart and understand what makes power and what doesn't.

mdosu · 08-31-2011, 06:16 PM

you wouldn't want one, you have a 95% chance of doing this with a sunroof:

gthal · 08-31-2011, 07:38 PM

Quote:

Originally Posted by MEMMEZZ

its about the same difference as whether u went to the bathroom or not before you drive.

Holy crap... you have a HUGE bladder and/or a VERY active bowel

gthal · 08-31-2011, 07:44 PM

Quote:

Originally Posted by Wall$treet

I dont get people who disregard as the carbon fiber roof as being neglible in difference. What do you want bmw to do already-they smartly added a carbon fiber light roof to save nearly 30 pounds from the highest point on hte car, just like the CSL did, they added aluminum to many parts of the body and suspension. Its a few pounds here and there but that is how you make a dent in weight.

You have a tough time feeling 30 horsepower yet you cannot say it does not matter. The lighter the better and 30 pounds (or 45 compared to moonroof which most get if not the CF) is a HUGE savings from the highest point of gravity! Like it or not if you want the better car, the CF roof is what you go with

People who buy a sunroof will defend it by saying the benefits of the CF roof are meaningless. People who go CF will say it makes a difference. IMO, I believe it would make a difference for many of the reasons you note (i.e. weight at the highest point possible) but I'm not convinced I would "feel" the difference. Would there be a measureable difference at the track if the same pro driver tried both? My guess is yes but it would be slight. I like it because it's unique and because I like the idea of the placebo effect and have convinced myself that I'm faster because of it

sensi09 · 08-31-2011, 07:51 PM

Quote:

Originally Posted by jphughan

There isn't an appreciable performance difference, unless MAYBE you're a pro racing driver.

The most common reasons most people go for the moonroof seem to be:

1. They don't like the look of CF with their exterior color.
2. They want to be able to open their roof.
3. There's less road noise with a moonroof than CF.

The most common reasons most people go for the CF roof seem to be:

1. It looks cool and isn't a common feature of cars in this segment.
2. They want the additional headroom.
3. It's known to cause speed.

Less noise with a moonroof?

jeff4598 · 08-31-2011, 07:53 PM

Tell me if I'm nuts but if we are discussing 45 pounds that is about 50 inches above the ground, wouldn't that lower the center of gravity as much as lowering our ~3600lb cars by about 0.65 inches? Is that not felt to be rather significant for handling?

gthal · 08-31-2011, 08:04 PM

Quote:

Originally Posted by jeff4598

Tell me if I'm nuts but if we are discussing 45 pounds that is about 50 inches above the ground, wouldn't that lower the center of gravity as much as lowering our ~3600lb cars by about 0.65 inches? Is that not felt to be rather significant for handling?

Don't say such things!! It can't possibly be true because that would actually make a difference and it would make the sunroof a poor choice

On a serious note, curious as to how you calculated the 0.65".

Totti · 08-31-2011, 08:14 PM

I weigh 155. The majority of fat asses on this board probably push 200+. I'm safe with my moon roof.

gthal · 08-31-2011, 08:18 PM

Quote:

Originally Posted by Totti

I weigh 155. The majority of fat asses on this board probably push 200+. I'm safe with my moon roof.

I bought CF so I wouldn't have to diet.

gblansten · 08-31-2011, 08:34 PM

I think the real question is whether a carbon fiber roof or a moonroof affects how you drive over speedbumps.

08-30-2011, 09:44 PM	#1
ZenGuy New Member Drives: 2011 335is Join Date: Aug 2011 Location: FL Posts: 19 iTrader: (0)	Any road tests on e92 w/ sunroof? Does anyone know if one of the mags or webistes out there have done a road test on a e92 with sunroof? I'm just curious as to how it the numbers would compare to an e92 with CF, an e92 with comp pkg, etc. Thanks Last edited by ZenGuy; 08-31-2011 at 09:50 AM.
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08-30-2011, 10:01 PM	#3
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,530 iTrader: (3)	CF roof adds 75whp. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

08-31-2011, 02:06 PM	#7
jphughan Colonel Drives: 2011.75 M3 E92 6MT Join Date: Mar 2011 Location: Austin, TX Posts: 2,168 iTrader: (0)	There isn't an appreciable performance difference, unless MAYBE you're a pro racing driver. The most common reasons most people go for the moonroof seem to be: 1. They don't like the look of CF with their exterior color. 2. They want to be able to open their roof. 3. There's less road noise with a moonroof than CF. The most common reasons most people go for the CF roof seem to be: 1. It looks cool and isn't a common feature of cars in this segment. 2. They want the additional headroom. 3. It's known to cause speed. __________________ 11 M3 E92 Le Mans \| Black Nov w/ Alum \| 6MT \| Premium 2 \| Convenience \| 19" \| EDC \| Prem Audio \| Moonroof \| BMW Apps \| Vorshlag Adjustable Camber Plates \| StopTech Street Perf Pads \| Castrol SRF Fluid \| ModMyNav.com rear camera

08-31-2011, 02:28 PM	#10
Poppin Fresh Colonel Drives: With a sunroof and front plate Join Date: May 2009 Location: Bergen County NJ Posts: 2,044 iTrader: (0)	CF = because race car. __________________

08-31-2011, 06:16 PM	#14
mdosu Help! Can't decide btw MW & AW, 1st world problems Drives: 2008.99989 SSII E90 "Civic" Join Date: Oct 2009 Location: Northern Virginia Posts: 5,950 iTrader: (4)	you wouldn't want one, you have a 95% chance of doing this with a sunroof: __________________ Yes, that's a xmas tree in my trunk

08-31-2011, 03:43 PM	#11
Twinbo First Lieutenant Drives: 2012 F150 Platinum Join Date: Jul 2011 Location: Calgary, AB Posts: 327 iTrader: (0)	The above posters have all stated the important stuff. I would say if you track the car go CF because if you're tall, your helmet may hit the roof but if this is a DD/Weekend ride then I wouldn't be concerned from a performance perspective. Also, depending on exterior colour you may want CF (Melbourne Red, Alpine White, Silverstone, Space Grey). The lighter colours make the roof pop. In my opinion the darker colour don't matter as much (Jerez, Black, Interlagos etc).

08-31-2011, 07:53 PM	#18
jeff4598 First Lieutenant Drives: 2009 e90 AW/BB lotsa Dinan Join Date: Jan 2009 Location: new jersey Posts: 357 iTrader: (0)	Well... Tell me if I'm nuts but if we are discussing 45 pounds that is about 50 inches above the ground, wouldn't that lower the center of gravity as much as lowering our ~3600lb cars by about 0.65 inches? Is that not felt to be rather significant for handling?

08-31-2011, 08:34 PM	#22
gblansten Captain Obvious Drives: 2011 BMW M3 SSII/Black Join Date: Sep 2007 Location: Thick ascending limb Posts: 1,255 iTrader: (0)	I think the real question is whether a carbon fiber roof or a moonroof affects how you drive over speedbumps.

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