6 Attachment(s)
Another fuel bay detail: Spare tire hold down rig
Harness leather belting had been a traditional feature of Race Department spare tire hold down rigs from the days of the first Spyder. These rigs were usually "Y" shaped affairs with a look that harkened back to those used since the early days of motoring. This tradition carried over to the ST and beyond.
The three point hold down rig used on the factory built MY 1970-71 Group 4 and rally 911S combined a harness leather belt sewn to the bottom leg of a heavy canvas "Y" shaped strap. Each of the three ends of the rig are fashioned to surround the same ubiquitous footman's brackets seen on the parcel shelf and rear seat kick panel on all long hood cars.
The footman's bracket on the leather belted end of the rig mounts underneath the rear edge on the center of the front latch panel. The footman's brackets on the canvas ends of the rig mount on either side of the gas tank surround.
The 2,8L RSR used a very similar rig for the space saver spare tires that sat in the molded contours of their plastic 110L K. Kurz Hessental gas tanks.
Why did special GT Group 4 cars carry a spare tire at all? Because, it was a requirement of the FIA rules that all GT cars carry a spare tire (but not a jack or tools). This rule, like the old FIA "suitcase" rule that expired earlier, finally was deleted from the rule book for the 1974 season.
Images attached this post show:
- Werkfoto of MY 1971 Safari ST with 100L steel tank and tie down rig for full size spare
- MY 1973 RSR with 110L plastic tank and tie down rig for space saver spare
- Original used MY 1971 tie down rig sourced for the hot rod
Tie Down for Hot Rod
The tie down rig sourced for the hot rod came from an old parts trove in Germany, the same source that provided the balsa lid, plexiglas rear screen and some other bits that we will examine later on in the thread. The leather is in fine condition but one end of the canvas strap shows stains from use.
As one might expect, the stained end is that which sat closest to the fuel neck of a Safari car.
6 Attachment(s)
Lower mounting points for lap belts
Quote:
Originally Posted by
70SATMan
Tom, would this have included adding lower mounts as well? On the door side, I can't see that they would have attached the lap belts to the standard mounts for the production front three point belt. Did they utilize attachments off the seat rails?
I'm planning on putting in the SWB lower mounts along with my shelf mounts regardless but, would be interesting to know how the STs handled those points.
Hello Michael,
The MY 1968 lower mounts are really neat looking fixtures. The first image attached to this post shows a 68L Trans Am car roll bar footplate and the lower mounting fixture for the lap belt as used in all MY 1968 chassis.
However, in order to enhance the efficacy of the restraint system and locate the lap belt in a more anatomically correct position, the factory re-located the lower mounting points for the lap belts on race prepped MY 1969-73.
From what limited research I have been able to do on this aspect of factory style race preparation, I would say that 911S Group 4 cars had the revised outboard lower mounting fixtures welded into the longitudinal, just above the seat mount shelf . The inboard mounting point was welded into the shift linkage tunnel.
The second and third images show the locations of the outboard and inboard mounting points on the longitudinal and shift linkage tunnel, respectively, of a fellow board member's MY 1972 factory built 2,5L ST.
I will post images of the hot rod's lower mount intallation once pics are available.
4 Attachment(s)
VIN Pad: Satin Black or Body Color?
Quote:
Originally Posted by
varunan123
Tom
I was wondering if you could share your knowledge on vin stamps-the reason i ask is on 0001 it is painted matte black-i don't know if this is correct but how josh restored it.I noticed your's is currently body color.
Raj
Hello Raj,
Thank you for your question. It is an interesting detail that we looked into.
I think Michael's answer is a good one.
However, I know you are an enthusiast for original cars or failing that, restorations with originality in mind.
Josh has had his hands on more factory prepped cars than I will ever see so I think he probably did the OOO1 car the way it appeared.
For my hot rod, it has proven difficult to obtain period photos of the fuel bay of cars as they appeared when built by the Race Department. There are plently of photos of the fuel bays of restored cars and also some in period relevant images of cars that had been heavily raced and possilby redone in rattle can black.
I have only one image of a freshly built, factory prepared MY 1971 ST. This image is as far as I know un-published and was used internally by the Race Deparment to document the details of the Safari build specifications.
The image that appears below is a cropped excerpt to show detail of the VIN pad. As you can see, the pad has the number stamped and is all in body color, with perhaps some black in the cavities of the stamping.
Given this period image, an internal factory Werkfoto documenting a freshly built MY 1971 Safari ST, we decided to present the MY 1971 hot rod's VIN pad in Olive body color.
That being said, Raj, I really do like the way the brush-on black treatment looks on 0001...
2 Attachment(s)
Armaturen-Apparate-Fabrik Preschona, now in Edmonds, WA
Raj:
Looks like Jeff has been caught holding out on the S guys!
Who was to know that Preschona had relocated from Berlin to Edmonds, WA of all places?
Good looking piece: just paint the canister (plain bodied one on far left) red and the body of the valve cast black and visually it would convince just about anybody.
I think there are some on the board who would be interested to learn the specs and details.
Thanks
Note: edited to reflect the guilty as per Raj's following post
10 Attachment(s)
RePa Sports Security Belts
In an earlier post the mounting fixtures conforming to Race Department specs had been fabricated and welded on the parcel shelf for the installation of the shoulder harnesses and Sports Security Belts. In another recent post we looked at the revised mounting points located in the longitudinals and the shift linkage tunnel for the lap belt portion of the Sports Security restraints.
The Sports Security restraint system is comprised of a lap belt and twin shoulder straps. The entire harness is made up from two inch wide black webbing with a distinctive orange thread woven in an intermittent pattern down the center of the length of the webbing. The buckles for the lap belts are the familiar RePa buckles which release by working the triggers with usual small red plastic knobs.
Silk screened labels are sewn onto the shoulder straps in order to provide the manufacturer with visibility of its brand in the cockpit. The yellow nylon shoulder billboards are approximately 6 ½ inches long and are emblazoned with RePa in bright blue. RePa, now just one of many brands held within the seatbelt manufacturing division of TRW, made all of the seatbelts for Porsche during this period.
The harnesses are unlike the SCCA shoulder harnesses used in the U.S in those days. The RePa harness ends are simply sewn in a loop for the ends of the lap belt to be passed through, rather than being positively located with metal-to-metal aircraft safety hardware.
The Race Department fitted this identical model of restraint system in 2,3L and 2,5L ST, Carrera RS 2,8L Competition and Carrera RS 3,0.
The orange thread webbing used in the Sports Security harnesses is characteristic of the standard European delivery seat belt material, while those cars built to U.S. specs had belts conforming to differing U.S. Department of Transportation safety standards, being made up from solid black webbing.
Examples of these same RePa restraints are commonly seen in period photographs of the Group 4 and Rally prepped ST Porsche.
The images attached to this post show a
- Werkfoto of freshly built MY 1971 Safari ST with RePa harnesses (image courtesy of Mcklein.de)
- used RePa harnesses sourced for the hot rod
- accessories list from 1970 Competition Spare Parts List
- interior of ST rally car (note helmet boxes)
These used examples came from a shop in Germany where a Safari had been updated for use in events sanctioned by FIA Historic Rallying. These harnesses together with the padded Safari roll bar and some other parts were abandoned by the Safari’s owner and ultimately sold off.
The original RePa Sports Security Belts sourced for the hot rod still have their original date tags. The date tags on both harnesses are stamped 1970 with the usual PORSCHE logo and the RePa part number 01.90110.1. The yellow RePa shoulder billboards show frayed edges and worn surfaces - not as nice as they appear in the image.
There are two different harnesses listed in the Accessories section of the Competition Spare Parts list: the Monte Carlo and the Recaro. Please refer to the first and last entries on the parts list at the end of this post.
911.803.902.00 harness MONTE CARLO
911.803.111.00 harness RECARO
I believe the RePa harnesses sourced for the hot rod are the RECARO. Note that the parts list specifies usage of two harnesses, for driver and co-driver.
