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The Boot Lid doesn't look that good. Not compared to the quality of the Vorsteiner Hood. The CA Boot Lid fits better and is incredibly strong. You can use the original schocks but preferably you have to use only one or remake the M3 schocks to fit the M5 Boot Lid.
The bad thing abt the CA Boot Lid is that it's a CSL type, which can be a little too much for many of the members of the Board.
 

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The Boot Lid doesn't look that good. Not compared to the quality of the Vorsteiner Hood. The CA Boot Lid fits better and is incredibly strong. You can use the original schocks but preferably you have to use only one or remake the M3 schocks to fit the M5 Boot Lid.
The bad thing abt the CA Boot Lid is that it's a CSL type, which can be a little too much for many of the members of the Board.
You said you didn't like the "boot lid" but didn't state why? I would like to know what others think of it. Yes though I do agree a Vor and a CA A. are good boot lid/trunk but they are in credibly expensive for what they are.

*I did try running one shock. I can't see anyone doing this. It is a terrible idea because it pushes up further one side making it bend. Any CF product will crack in time being bent like this. They will also warp into that bent shape, (key word over time) and could be higher on one side.

*I am also going to take off my mechanical fan today folks!! I will report if I find any issues or gains.
 

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Discussion Starter #503
A stupid question as I've never actually looked closely - I'm aware that M3 shocks work well with cf hoods, are they the wrong size for cf trunk lids?

Dave
 

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I just took off my mechanical fan. I was scared to do this for a long time. I live in california and its decently chilly. Lows sometimes below freezing but 40's to 50's in the day time. Which doesnt matter too much cause a car can over heat almost in any conditions in certain circumstances. But to the point i have seen no difference in temp from usual and HAVE noticed the difference in power. It is much more responsive. I did check my electrical fan just to be extra safe. An this wasn't too hard to do. It took me about 1 hour with proper tools. I recommend taking off the clutch to this fan also. Its fairly heavy. If any one wants pics of this project an where to locate the electrical fan plug for testing please post.
 

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I just took off my mechanical fan. I was scared to do this for a long time. I live in california and its decently chilly. Lows sometimes below freezing but 40's to 50's in the day time. Which doesnt matter too much cause a car can over heat almost in any conditions in certain circumstances. But to the point i have seen no difference in temp from usual and HAVE noticed the difference in power. It is much more responsive. I did check my electrical fan just to be extra safe. An this wasn't too hard to do. It took me about 1 hour with proper tools. I recommend taking off the clutch to this fan also. Its fairly heavy. If any one wants pics of this project an where to locate the electrical fan plug for testing please post.
Did you install an electric fan in it's place, or do you just have the stock auxiliary electric fan right now? The stock fan is not enough, and you're taking a pretty big risk of overheating if you rely on just the stock electric fan.
 

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The M5 trunk shocks are rated for 520N - RealOEM.com BMW E39 M5 SINGLE COMPONENTS FOR TRUNK LID

E46 shocks are rated for 300N - RealOEM.com BMW E46 M3 TRUNK LID/CLOSING SYSTEM

The only question is, will they fit, and do they have enough travel?
They wont fit. The travel is long enough - but they are different. However it's possible to modify the M3 schocks so that they will fit. Involves taking one part (that fastens to the lid, its different) from the M5 schock and someway fit it to the M3 schock. I did, functions rather well. Have sold the Boot Lid and the modded schocks to one of the board members. Sorry no pics.
 

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Did you install an electric fan in it's place, or do you just have the stock auxiliary electric fan right now? The stock fan is not enough, and you're taking a pretty big risk of overheating if you rely on just the stock electric fan.
Thats a good question. At this time of year here in cali the factory electric up front is enough. I don't know if it would hold up in the summer. I guessing it probably wont. How ever even in the summer when both were in, I never saw it turn on. Which means it was just relying on one fan. The e39 cooling system works very well. I am also the guy who checks his oil and coolant levels every morning. I lost a turbo supra motor once from loosing oil with in just a few miles. So now that I learned I check them all the time because I like being able to monitor the cars changes if there is any. I also check my gauge's H2O temp all the time and have still, never seen a spike. The other day left the car running in the drive way for almost an hour. I saw no spike in temp and saw the electric kick on once for only about a minute. I have been driving it like this for about a week now and feel pretty comfortable with this set up. Towards summer IF i see spikes in the coolant temp I will just up grade to a high performance fan to replace to factory electric.
 

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One word. Gap!
ahhhh come on.. Its really not that bad in person. Its carbon fiber. Its never really gona fit perfect. Plus someone asked months ago about how many times will it last. I have opened and closed it probably a thousand times so far and it still works fine. Honestly though in person you can even tell, i swear.lovelove
 

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ahhhh come on.. Its really not that bad in person. Its carbon fiber. Its never really gona fit perfect. Plus someone asked months ago about how many times will it last. I have opened and closed it probably a thousand times so far and it still works fine. Honestly though in person you can even tell, i swear.lovelove
The bar on fit & finish is a bit higher for the particular M5 crowd :) Vorsteiner has pretty much set the standard for cf hood fit, but in many (most?) cases it is still less than OEM. One would hope the situation would be better for smaller pieces, such as the boot lid, but I think even the CA CSL style cf boot lid has its challenges.

Hey, we maybe need to re-calibrate our thinking. Maybe there is a dash of panache with a less-than-perfect fitment. Look at some of the great classic cars from the past, such as the Shelby Mustang with those horribly fitting fiberglass hoods. Hasn't hurt the resale/collectability one bit! :hihihi:

Dave
 

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The bar on fit & finish is a bit higher for the particular M5 crowd :) Vorsteiner has pretty much set the standard for cf hood fit, but in many (most?) cases it is still less than OEM. One would hope the situation would be better for smaller pieces, such as the boot lid, but I think even the CA CSL style cf boot lid has its challenges.

Hey, we maybe need to re-calibrate our thinking. Maybe there is a dash of panache with a less-than-perfect fitment. Look at some of the great classic cars from the past, such as the Shelby Mustang with those horribly fitting fiberglass hoods. Hasn't hurt the resale/collectability one bit! :hihihi:

Dave
"but I think even the CA CSL style cf boot lid has its challenges" Yes, definitely. The installation and finish (painting, clearcoating etc) of the Vorsteiner Hood was a walk in the Park compared to the CA Bootlid.

Magnus
 

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Thats a good question. At this time of year here in cali the factory electric up front is enough. I don't know if it would hold up in the summer. I guessing it probably wont. How ever even in the summer when both were in, I never saw it turn on. Which means it was just relying on one fan. The e39 cooling system works very well. I am also the guy who checks his oil and coolant levels every morning. I lost a turbo supra motor once from loosing oil with in just a few miles. So now that I learned I check them all the time because I like being able to monitor the cars changes if there is any. I also check my gauge's H2O temp all the time and have still, never seen a spike. The other day left the car running in the drive way for almost an hour. I saw no spike in temp and saw the electric kick on once for only about a minute. I have been driving it like this for about a week now and feel pretty comfortable with this set up. Towards summer IF i see spikes in the coolant temp I will just up grade to a high performance fan to replace to factory electric.
I have removed my auxiliary fan, it was broken, and the car seems to run a bit cooler now with it gone, probably because there were a bunch of leaves stuck behind it, and the fan assembly blocks a good portion of the radiator from airflow

With just the Spal fan, I find that the coolant temp is rock solid at 79C until outside temperatures get above 75F or so. On hotter days, I can not have the A/C on at idle or in heavy traffic, the temps climb pretty fast under those conditions, I'm sure the auxiliary fan would help a lot in reducing the temps in those conditions.
 

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A while back someone asked to get some weights on some of this stuff and the sun roof motor. I threw it away. But it had to be less then 10lbs. It wasn't super heavy.

These weights I dont believe to be accurate! I think the scale needs 50lbs+ to make it read anything so I had a lot trouble getting these weights so they could be off. But here ya go.

Not sides, just rear Sun shade and motor w package tray. 13.2lbs

Rear Seat back Small side 15.2lbs

Rear seat back larger side 13.7lbs why the bigger side is lighter im not sure again I dont think the scale was on par
<a href="http://s6.photobucket.com/albums/y222/Lmanifestdestiny/?action=view&current=DSC00903.jpg" target="_blank"><img src="http://i6.photobucket.com/albums/y222/Lmanifestdestiny/DSC00903.jpg" border="0" alt="Photobucket"></a>
Muffler 33.8lbs This thing felt like it was about 50lbs......?

Spare 41lbs - the 35 pounds of air lol

Factory Subwoofer Enclosure 18.8lbs

I didn't weigh each and every piece but this is only a little bit of what I removed and or replaced. I mean only a little honestly I threw a lot of stuff away.
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This thread is crazy. Got to pg 25 with all the Voltphreak's stuff. They're website the battery is now $1800!!! Anybody know what happened with the rest of the thread or do I have to read the other 25 pages?
 

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This thread is crazy. Got to pg 25 with all the Voltphreak's stuff. They're website the battery is now $1800!!! Anybody know what happened with the rest of the thread or do I have to read the other 25 pages?
Keep reading.... :haha2:

Actually, an update would be nice. I think Peter may have an item or two to add to the list...

Dave
 

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Keep reading.... :haha2:

Actually, an update would be nice. I think Peter may have an item or two to add to the list...

Dave
LOl! The CF roof saved right at 70 lbs net. The Recaro Sportster CS seats saved between 90 and 100 lbs. net. The Voltphreaks batter saved about 80 lbs. The CF bumper support swap saved about 20 lbs. net. I've now also deleted all of the fuses and relays from the trunk and related brackets and electronics and replaced it with solid state stuff. I'm also AC-less and deleted the aux fan and all stock seatbelts, except for the hardware necessary to use the Schroth easy fit harnesses. Stoptech Trophy Sports and the VOlk TE37s and aftermarket exhaust collectively probably net another 100 lbs. the CF trunk and hood net another 50-75 lbs. Finally, no trunk panels and no back seat. Conteracting all of these savings is a rollbar, a supercharger setup, a meth injection setup, and a stereo. (Raza would add to this how much more I weigh than he does....). What the net-net savings are will be interesting to see. I have ordered some scales to corner balance the car and so will know for sure the next time I'm with the car in September. I would just like the curb weight to be below 3500 lbs., and I'll be happy.

--Peter
 

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The new BMW Alpina B3 GT3 offers the optional Braille Lithium battery, and at 10 lbs is a 53 pound savings over the stock battery. It has considerably more cranking power than a lead-acid battery and plenty of capacity. Braille is one of the only lithium batteries that are DOT approved.

Aplina B3 GT3 BMW ALPINA - B3 GT3

Braille Lithium battery Braille Battery USA &nbsp&nbsp&nbsp&nbsp Lighter • Stronger • Faster -

Typical life of a lithium battery is 7-10 years, when you have the right size battery. It's amazing how many people try to use a battery designed for a motorcycle as a cheap way to put lithium into their cars and wonder why they don't last long.
 
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