9m11RS-R - creation of a modern icon - '74 3.0RSR on 9m64RS platform
09-21-2010, 05:52 PM
#61
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pfff nice craftmanship there.
Although I think carbon has a lot of advantages I would be scared how it reacts to a collision or crash at speed. I believe it is strong, but how does it cope with collision type forces etc.
never the less, this seems to be going a very unique Porsche.
Although I think carbon has a lot of advantages I would be scared how it reacts to a collision or crash at speed. I believe it is strong, but how does it cope with collision type forces etc.
never the less, this seems to be going a very unique Porsche.
If you have a close look at the inside of the panels you'll see it's a yellow and black check. I could be wrong but it looks like a hybrid cloth of Carbon and Kevlar fibres. Carbon, although strong can be very brittle. Kevlar, well, used in balistic vests you know.
Maybe the the composite panels provide a slightly better "crumple zone" when coupled with the steel shell of the original car, thus offering better protection than the original.
10-05-2010, 03:36 PM
#64
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Thanks for everyone's interest. Now that Kermit is off the rotisserie we're finishing off the last few jobs so we can load on the 9m11RS and get to work seam welding the floorpan.
Today Marc has been backdating the rear end with the correct 1974-1984 light housing & rear deck panels, which is not as easy as it seems because the 964 panel is a lot more convex than the SC equivalent. To pull out the panel to the required position, Marc's spot welding on body pins which will be tugged using a special collet attachment slide hammer.
The rear deck also had to be fitted slightly proud of normal to allow for the thickness of the carbon quarter panel which has to be bonded on top of the original quarter panel - using the same adhesive as the carbon roof of an M3CSL.
Photos show the pins being welded on; the SC panels welded in & the rear deck mocked up & the final welding of the deck. Last shot is the cutaway front panel to make space for the RSR bumper.
Today Marc has been backdating the rear end with the correct 1974-1984 light housing & rear deck panels, which is not as easy as it seems because the 964 panel is a lot more convex than the SC equivalent. To pull out the panel to the required position, Marc's spot welding on body pins which will be tugged using a special collet attachment slide hammer.
The rear deck also had to be fitted slightly proud of normal to allow for the thickness of the carbon quarter panel which has to be bonded on top of the original quarter panel - using the same adhesive as the carbon roof of an M3CSL.
Photos show the pins being welded on; the SC panels welded in & the rear deck mocked up & the final welding of the deck. Last shot is the cutaway front panel to make space for the RSR bumper.
10-07-2010, 10:11 AM
#67
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Changed ends yesterday to do more fabrication work at the front of the shell. Pictures show notching the front lower roll cage tubes on the milling machine, Mark prepping for the new flat front panel & panel welded in place, the block-off for petrol filler neck & the seam welding around the inside of top mount.
Since the car is going to the Far East it has to have a/c, hence why the hole under the filler neck blank has been left open. If you study the last photo you may also notice the RS cutout switch bracket welded to the top of the chassis leg.
Since the car is going to the Far East it has to have a/c, hence why the hole under the filler neck blank has been left open. If you study the last photo you may also notice the RS cutout switch bracket welded to the top of the chassis leg.
Last edited by NineMeister; 10-07-2010 at 10:30 AM.
10-07-2010, 08:18 PM
#69
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Upper body fabrication is now complete, so it's time for the shell to come off the jig and go onto the rotisserie to give us full access to the underside.
10-17-2010, 07:15 PM
#71
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Here's last week's update. Now the shell is on the spit, Marc has been working on the floorpan doing the following:
Seam welding to RS specification
6 point harness anchors under seats
Front jack point shortening (originals would be visible without side skirts)
Gearbox tunnel mounts (adding 993 lateral mounts) & tunnel seat belt anchors
Roll cage to roof rail stiffeners
Seam welding to RS specification
6 point harness anchors under seats
Front jack point shortening (originals would be visible without side skirts)
Gearbox tunnel mounts (adding 993 lateral mounts) & tunnel seat belt anchors
Roll cage to roof rail stiffeners
10-18-2010, 12:37 PM
#74
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The 3.0RS one fits a turbo fendered car, the one we have is the 3.0RSR version to fit the even wider RSR fenders. We've never made one for a narrow bodied car but I'll ask our composite guy what it would take to do one.
10-19-2010, 10:17 AM
#75
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Marc's now pretty much finished the last of the fabrication work on the shell, the last job here is reducing the height of the driver's side seat mountings. This is obviously because the owner is quite tall & we wanted to sit him as low down to the floor as possible & hence regain adjustment for the Recaro race seat. Lowering the seat involves removing the pressed steel brackets, shortening them & rewelding back into position on the floor rails.
Note the new roll cage crossbar under the dash & the triangulation of the forward stiffening members which have also been added at the special request of the customer.
Note the new roll cage crossbar under the dash & the triangulation of the forward stiffening members which have also been added at the special request of the customer.
