CF roof for M Coupe

Dammmittt · 05-24-2007, 08:29 AM

Anyone out there know of any current or planned CF roofs for the M Coupe...it would be cool to drop another couple hundred pounds or so.

vladinecko · 05-25-2007, 03:07 AM

i think CF roof is something M cars will get standard starting with the new M3. i'd be very surprised if they put it on current models. just like twin-turbo is probably never going to make its way to regular Z4s.

Dammmittt · 05-25-2007, 08:50 AM

I was thinking something atermarket like from AC Schnitzer or Hamman

inTgr8r · 05-25-2007, 09:07 AM

Don't most aftermarket CF roofs just install over the tin top?

If you want to loose weight.... talk to TC Kline about the carbon coupe

Dammmittt · 05-25-2007, 03:47 PM

Hmmm...

Yal · 05-26-2007, 12:35 AM

a guy on baybimmerz has a nice pictorial of the removal of his normal roof and the installation of a cf roof. Can't remember what it was, certainly wasn't a Z4.

Dammmittt · 05-26-2007, 09:39 AM

Something like this...Not that I could ever do that by myself

http://forum.e46fanatics.com/showthread.php?t=428660

sixspeed · 05-26-2007, 12:13 PM

A few mates and I have been talking about doing this on my Coupe, although it won't be at least until next year. It's too new yet to go chopping it up

But it looks like a very easy job to remove the current roof, and I have plenty of contacts for doing the carbon-work and making a replacement panel.

ward · 05-26-2007, 01:35 PM

you can't just cut the roof out dude, it's structural

and just adding carbon over the top is really weak!

I wouldn't even consider doing something so drastic as removing the roof panel on such a new/expensive car

takedown8 · 05-26-2007, 02:08 PM

Wow. Pretty extreme measures. I hope it's worth it.

sixspeed · 05-26-2007, 06:54 PM

Well, we need to get the headlining off yet to have a proper look, but the gut feeling is that the roof isn't structural. From having a brief look at mine, we reckon that it just a tack-welded/bonded panel. Don't forget the Z4MC is just a Z4M Roadster with a fixed roof. They built the fixed roof onto the already structurally-sound Z4MR design. All the strengthening is already in the Roadster design. The Z4MC is stiffer, but that comes from the main structures around the roof (ie the C pillars and any crossmembers under the roof-panel).

Dammmittt · 05-27-2007, 10:11 AM

I don't think the panel is structural either. I'm sure the roof is pretty similar to the M3 roof in the DIY 'cept smaller. I think the CF would definatly help drop the weight of the steel and lower the the COG tho. I doubt it'll happen on mine any time soon tho. She's still too perty to be cuttin open

sixspeed · 05-27-2007, 12:42 PM

That's it. It'll be a fairly simple mod in a way, but I'm not 100% sure I've got the guts to say - yup, cut open my Z4!... lol

inTgr8r · 05-27-2007, 02:36 PM

subscribing

Can't wait too see how this unfolds.....
sixspeed - the CF roof on AW would be absolutely amazing

....just do it!

Dammmittt · 05-27-2007, 04:00 PM

hahahah it would look better on Black sapphire

Dammmittt · 06-01-2007, 01:10 PM

Just heard back from TC Kline.

Here's some info on the CF roof.

Yes, cost is $1650.00. We make them to order. Allow 2 weeks. Shipping approx 70.00

sixspeed · 06-01-2007, 01:58 PM

Dammmittt.. you too eh? I figured it would be worth giving them a shout, since it would be a lot easier to buy a ready-done roof, than take mine off then try and get someone to copy it (and turn the car into a roadster in the mean time

)...

So yes - I'm waiting on a shipping quote to the UK, but I expect I'll take TC Kline's offering as it will reduce this to a days work.

Oh, and I had a bit of a closer look on the car, and had a bit of a more in-depth chat with the chaps at TCK, and they confirmed my thoughts - the roof is actually just bolted and glued/bonded on! I thought there might be some tack/spot welds, but not even that. Don't know if anyone else has noticed how our cars are like big Meccano kits. Everything is bolt on, even the rear wings/quarters....

Will certainly make a roof swap a hell of a lot easier though!

Watch this space

sixspeed · 06-01-2007, 02:06 PM

Incidentally, they also sell the hood (but without the "M" darts/creases) and the trunk/boot lid in carbon fibre, and they are direct replacements for the originals. Obviously they sell the whole car in carbon, but the other parts (wings, doors etc) are wider and so will alter the look of the car....

Shame about the hood, but that trunk lid must weigh a bit .... (although I guess half of that is the glass rear screen anyway!)

Dammmittt · 06-01-2007, 02:15 PM

Yeah...that sux about the hood (or should I say bonnet?). But I think the roof would look really nice and I'm not too sure I'd want to do too much cutting. I'm glad it sounds pretty simple to do. Not that I'd try it myself

SunnyD · 06-01-2007, 03:34 PM

What kinda weight savings would you see with the TC Kline CF roof?

epbrown · 06-01-2007, 04:37 PM

I think the estimate is 60lbs, but its very significant because it is high in the car's center of gravity. As far as handling impact, that ranks up there with removing unsprung weight.

Dammmittt · 06-05-2007, 08:42 AM

The CF roof panel weighs 7.9 lbs. Not sure what the stock roof weighs..but I'm guessing that since it weighs more than the roadie...it's alot.

05-24-2007, 08:29 AM	#1
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	CF roof for M Coupe Anyone out there know of any current or planned CF roofs for the M Coupe...it would be cool to drop another couple hundred pounds or so.
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05-25-2007, 03:07 AM	#2
vladinecko Brigadier General 277 Rep 3,924 Posts Drives: '11 E92 M3 Join Date: Jun 2005 Location: Bay Area, CA iTrader: (1) Garage List 2011 BMW M3 [9.00] 2008 BMW 335i [0.00] 2006 BMW 330i [0.00] 1994 BMW 325i [0.00]	i think CF roof is something M cars will get standard starting with the new M3. i'd be very surprised if they put it on current models. just like twin-turbo is probably never going to make its way to regular Z4s. __________________ 2011 E92 M3 - IB/Beige/Sycamore Wood/6MT/EDC/ZPP2/Nav/PDC/Heated Seats/iPod-USB/Enh. Audio 2008 E92 335i - Montego Blue/Black/Gray Poplar/6MT/ZPP/ZSP/Nav/PDC/Heated Seats/HDRadio/iPod-USB - *Sold* 2006 E90 330i - Mystic Blue/Black/Aluminum/6MT/ZPP/iDrive/PDC/Heated Seats/Sat. Prep - *Sold* 1994 E36 325i - Boston Green/Beige/Automatic/ZPP/Heated Seats/Premium Sound - *Sold*
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05-25-2007, 08:50 AM	#3
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	I was thinking something atermarket like from AC Schnitzer or Hamman
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05-25-2007, 09:07 AM	#4
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Don't most aftermarket CF roofs just install over the tin top? If you want to loose weight.... talk to TC Kline about the carbon coupe __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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05-25-2007, 03:47 PM	#5
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Hmmm...
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05-26-2007, 12:35 AM	#6
Yal Lieutenant 10 Rep 490 Posts Drives: '03 Z4 2.5 Maldives Blue Join Date: May 2007 Location: Santa Cruz, CA iTrader: (0)	a guy on baybimmerz has a nice pictorial of the removal of his normal roof and the installation of a cf roof. Can't remember what it was, certainly wasn't a Z4. __________________
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05-26-2007, 09:39 AM	#7
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Something like this...Not that I could ever do that by myself http://forum.e46fanatics.com/showthread.php?t=428660
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05-26-2007, 12:13 PM	#8
sixspeed Z4M CSL 31 Rep 173 Posts Drives: Alpine White Z4M Coupe Join Date: Feb 2007 Location: London iTrader: (0)	A few mates and I have been talking about doing this on my Coupe, although it won't be at least until next year. It's too new yet to go chopping it up But it looks like a very easy job to remove the current roof, and I have plenty of contacts for doing the carbon-work and making a replacement panel. __________________
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05-26-2007, 01:35 PM	#9
ward Major General 155 Rep 6,158 Posts Drives: F Join Date: May 2005 Location: T iTrader: (0)	you can't just cut the roof out dude, it's structural and just adding carbon over the top is really weak! I wouldn't even consider doing something so drastic as removing the roof panel on such a new/expensive car
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05-26-2007, 02:08 PM	#10
takedown8 Major 56 Rep 1,068 Posts Drives: 2005 BMW Z4 3.0i Join Date: May 2007 Location: Seattle, WA iTrader: (0)	Wow. Pretty extreme measures. I hope it's worth it.
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05-26-2007, 06:54 PM	#11
sixspeed Z4M CSL 31 Rep 173 Posts Drives: Alpine White Z4M Coupe Join Date: Feb 2007 Location: London iTrader: (0)	Well, we need to get the headlining off yet to have a proper look, but the gut feeling is that the roof isn't structural. From having a brief look at mine, we reckon that it just a tack-welded/bonded panel. Don't forget the Z4MC is just a Z4M Roadster with a fixed roof. They built the fixed roof onto the already structurally-sound Z4MR design. All the strengthening is already in the Roadster design. The Z4MC is stiffer, but that comes from the main structures around the roof (ie the C pillars and any crossmembers under the roof-panel). __________________
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05-27-2007, 10:11 AM	#12
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	I don't think the panel is structural either. I'm sure the roof is pretty similar to the M3 roof in the DIY 'cept smaller. I think the CF would definatly help drop the weight of the steel and lower the the COG tho. I doubt it'll happen on mine any time soon tho. She's still too perty to be cuttin open
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05-27-2007, 12:42 PM	#13
sixspeed Z4M CSL 31 Rep 173 Posts Drives: Alpine White Z4M Coupe Join Date: Feb 2007 Location: London iTrader: (0)	That's it. It'll be a fairly simple mod in a way, but I'm not 100% sure I've got the guts to say - yup, cut open my Z4!... lol __________________
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05-27-2007, 02:36 PM	#14
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	subscribing Can't wait too see how this unfolds..... sixspeed - the CF roof on AW would be absolutely amazing ....just do it! __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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05-27-2007, 04:00 PM	#15
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	hahahah it would look better on Black sapphire
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06-01-2007, 01:10 PM	#16
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Just heard back from TC Kline. Here's some info on the CF roof. Yes, cost is $1650.00. We make them to order. Allow 2 weeks. Shipping approx 70.00 __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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06-01-2007, 01:58 PM	#17
sixspeed Z4M CSL 31 Rep 173 Posts Drives: Alpine White Z4M Coupe Join Date: Feb 2007 Location: London iTrader: (0)	Dammmittt.. you too eh? I figured it would be worth giving them a shout, since it would be a lot easier to buy a ready-done roof, than take mine off then try and get someone to copy it (and turn the car into a roadster in the mean time )... So yes - I'm waiting on a shipping quote to the UK, but I expect I'll take TC Kline's offering as it will reduce this to a days work. Oh, and I had a bit of a closer look on the car, and had a bit of a more in-depth chat with the chaps at TCK, and they confirmed my thoughts - the roof is actually just bolted and glued/bonded on! I thought there might be some tack/spot welds, but not even that. Don't know if anyone else has noticed how our cars are like big Meccano kits. Everything is bolt on, even the rear wings/quarters.... Will certainly make a roof swap a hell of a lot easier though! Watch this space __________________
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06-01-2007, 02:06 PM	#18
sixspeed Z4M CSL 31 Rep 173 Posts Drives: Alpine White Z4M Coupe Join Date: Feb 2007 Location: London iTrader: (0)	Incidentally, they also sell the hood (but without the "M" darts/creases) and the trunk/boot lid in carbon fibre, and they are direct replacements for the originals. Obviously they sell the whole car in carbon, but the other parts (wings, doors etc) are wider and so will alter the look of the car.... Shame about the hood, but that trunk lid must weigh a bit .... (although I guess half of that is the glass rear screen anyway!) __________________
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06-01-2007, 02:15 PM	#19
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Yeah...that sux about the hood (or should I say bonnet?). But I think the roof would look really nice and I'm not too sure I'd want to do too much cutting. I'm glad it sounds pretty simple to do. Not that I'd try it myself __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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06-01-2007, 03:34 PM	#20
SunnyD Major 452 Rep 1,288 Posts Drives: M4 GTS Join Date: Dec 2006 Location: Long Beach, CA iTrader: (0)	What kinda weight savings would you see with the TC Kline CF roof? __________________ '16 ///M4 GTS '11.75 ///E90 M3 ZCP \| DCT '06 ///M5 \| SMG - Gone '98 ///M3 \| 5MT - Gone '07 ///M Coupe \| 6MT - Gone
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06-01-2007, 04:37 PM	#21
epbrown Colonel 60 Rep 2,128 Posts Drives: BMW M Coupe, Porsche Boxster S Join Date: May 2007 Location: Chicago, IL iTrader: (0)	I think the estimate is 60lbs, but its very significant because it is high in the car's center of gravity. As far as handling impact, that ranks up there with removing unsprung weight.
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06-05-2007, 08:42 AM	#22
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	The CF roof panel weighs 7.9 lbs. Not sure what the stock roof weighs..but I'm guessing that since it weighs more than the roadie...it's alot. __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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