Copperman05
New member
Melv, You able to attend our revised track day date on 20th May at Bedford? Edd
944 turbo cup
- Thread starter hgo
- Start date
Neil Haughey
New member
Sorry Nick I didn't understand what it was you were looking to achieve with it. Its not a half bad interesting design for keeping the car near to road trim and of course for historical accuracy it may actually make a lot of business sense to be able to offer such a thing, if I had a turbo it would definitely interest me. I have certainly found that my own race car IMHO has gone to far from what could be used as a multi purpose car and some of that is inevitable once one has X bars in the door aperture and no interior trim etc. (you can get wet when it rains as the holes in the original body shell are exposed for example). The 968 Matter cage I referred to is much more like a modern weld in design.
nicksonmsport
New member
your right in a current competition car you would want a full weld in multipoint cage, rather than a bolt in item. but as for a replica cup car, you would want to base the cage on the matter cage. you could make an exact replica of the original matter cage in a modern spec material, with all the same fixings etc, and have a cage that would pass current fia/msa standards. so perfectly safe! i build a lot of cages for historic vehicles, which have strict rules on the spec of the cage and what can and cant be used. basically the cages must be very similar to the cage used in the period the car was originally racing in. nearly always bolt in cages rather than weld in. the only thing you cant use is aluminium as a material to construct the cage from. so we use msa/fia compliant cds or t45 alloy tube. as a rollcage manufacturer, i would base the cage on the matter item so it is very similar in appearance and construction, but with some slight alterations to ensure it was as safe as possible, for example the original harness tube in the matter cage was mounted far to high, and so the harnesses were at an unsafe angle, a current version would have the harness tube lower so as to ensure the angle of the harness was to current regs. they also used an eyebolt type fixing on top of the harness tube, this would be binned and wrap around style harness would be used. its not so much an issue using an eyebolt type fixing on the cage, but more so the fact its installed vertically in the tube rather than horizontally. if u imagine the harness pulling on the eyebolt in an impact, it could snap it clean off, rather than try to stretch it when installed horizontally. in horizontal application the strength is from the harness trying to pull the threads out of the boss, which is nye on impossible. little things like this are where the design can be improved and made safer, but the general shape and construction of the original matter cage is up to current standards!
944 man
Active member
I shuddered when I saw the eye bolts. I will guess that the bar was intended for wrap arounds and that the eyelets were added later by someone who didnt understand what 'tensile' meant. [
] I understand the idea behind a replica, of course, but Id be looking at following the tube layout and revising the mountings. Id really like to get up close to one though as much of my opinion is based on 400x600 pixel pictures.
] I understand the idea behind a replica, of course, but Id be looking at following the tube layout and revising the mountings. Id really like to get up close to one though as much of my opinion is based on 400x600 pixel pictures.
Jonny944CS
New member
Lovely car Hgo. I noticed your car (or at least the driver name) features on this poster - Publication # WWM 352810 11/89 - recently sold on US ebay:
Or in [link=http://www.youtube.com/watch?v=hY0SM48V62M]this video from the '88 race at the Norisring [/link] - your car at 2:11, 2:59 or 3:45 maybe? Paul 'centerpunch' on Rennlist also has a very clean example (owned from new and never raced). His interesting thread searching for info on the US cars can be found [link=http://forums.rennlist.com/rennforums/924-931-944-951-968-forum/234752-looking-for-all-nine-1987-u-s-turbo-cup-cars-38.html]here[/link].
nicksonmsport
New member
yes simon, hopefully an afterthought lol! i agree, im not a huge fan of the sleeve joints used, especially as they scratch the hell out of the paint when u install/remove! there are much better options out there, and more attractive ones too! like u say you need to see one up close to make an accurate evaluation.
indeed a real honest 937 CGT, real fun car, lot invested to get it mechanically in good shape again. need to sell because lack of time and space for it full known history, all invoices with the car since 1990 full engine and gearbox rebuild, new original Porsche cloth interior redone, no cracked dashboard
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