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Motorsports & Track Forum
From Auto-X to Trackday to Racing and Professional Motorsports – this is the place to discuss making BMWs fast

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Old 01-22-2006, 02:40 AM   #1
Will ZCPM3
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track car progress

within the next month it will be at the cage shop. I used a 3m adhesive remover to get the sound insulation residue off. it worked ok, but if i were to do it again id try a different method.
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Old 01-22-2006, 09:25 AM   #2
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I heard that dry ice works really well for insulation removal.
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Old 01-22-2006, 11:50 AM   #3
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Nice work. Very clean. Do you have a cage design yet?

Good luck. You're off to the right start.
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Old 01-22-2006, 12:22 PM   #4
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wow.. ... you have seriously loose some pounds in there.


good luck on your project
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Old 01-22-2006, 04:31 PM   #5
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Originally Posted by Geo31
Nice work. Very clean. Do you have a cage design yet?

Good luck. You're off to the right start.
just the basic 6pt +2 w/nascar bars. Im setting it up to run KP and ITS
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Old 01-22-2006, 09:49 PM   #6
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Sounds great. Looking forward to more pix.
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Old 01-22-2006, 09:59 PM   #7
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Originally Posted by Will ZCPM3
just the basic 6pt +2 w/nascar bars. Im setting it up to run KP and ITS
You're going to have to weld up that sunroof.
If you haven't gotten belts yet, Get the 6-point belts as the 5 points are being phased out by the end of the year.
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Old 01-22-2006, 10:56 PM   #8
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You're going to have to weld up that sunroof.
If you haven't gotten belts yet, Get the 6-point belts as the 5 points are being phased out by the end of the year.

im just going to replace the whole roof panel with an oem non sun roof one. i have some 6 pt schrothes i was using with the rollbar before. once those are outdated ill get a set of hans belts
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Old 01-22-2006, 11:01 PM   #9
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im just going to replace the whole roof panel with an oem non sun roof one. i have some 6 pt schrothes i was using with the rollbar before. once those are outdated ill get a set of hans belts
Cool!

Definitely sticking to the rule book with the Factory roof replacement.
But wouldn't it be simpler to just fabricate a metal sunroof panel, and weld it to the roof? Of course you're going to reinforce the bottom of the sunroof panel too. I've seen many BMWCCA club race cars that have had their sunroofs covered up in that manner.
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Old 01-22-2006, 11:10 PM   #10
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Cool!

Definitely sticking to the rule book with the Factory roof replacement.
But wouldn't it be simpler to just fabricate a metal sunroof panel, and weld it to the roof? Of course you're going to reinforce the bottom of the sunroof panel too. I've seen many BMWCCA club race cars that have had their sunroofs covered up in that manner.
the place that will be doing it has done it on a bunch of e46's and they recomended just replacing the whole roof. they will be switching the actual panel and changing the supports b/c they are different from a sun roof to non sun roof.
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Old 01-23-2006, 01:07 AM   #11
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I want to get rid of my sunroof. I know it sounds ridiculous for a street car but I dont ever use it, its heavy, and the shades clips are broken. And when I say I dont use it I mean it, some girl broke the clips.

Any idea what the roof replacement is gonna run you?
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Old 01-23-2006, 01:31 AM   #12
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not really sure about labor added in but the bow and panel i believe run around $600-700. then its just spot welded on & painted.
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Old 01-23-2006, 10:48 PM   #13
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forgive me for my ignorance but what about a cf panel if you're going to have an extensive cage like that
imean id think flex would be minimized with a cage, no?
plus cf roof on silver looks gorgeous
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Old 01-23-2006, 11:02 PM   #14
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forgive me for my ignorance but what about a cf panel if you're going to have an extensive cage like that
imean id think flex would be minimized with a cage, no?
plus cf roof on silver looks gorgeous
Lots of racing organizations won't allow a CF roof.
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Old 01-24-2006, 10:37 AM   #15
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Lots of racing organizations won't allow a CF roof.
BMWCCA does
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Old 01-24-2006, 11:15 AM   #16
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BMWCCA does
in mod class but but not in prepared
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Old 01-24-2006, 11:22 AM   #17
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Oh I thought you were doing a Dm car.
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Old 02-12-2006, 05:47 PM   #18
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Old 02-13-2006, 11:51 AM   #19
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How much weight will the sunroof delete end up saving?
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Old 02-13-2006, 01:10 PM   #20
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i didnt weight the sunroof when i was home but i'd guess it was somewhere between 40-50 pounds. my guess is that with the new roof it would be like an overall saving of 30-40 pounds
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