FIA/CSI Homologation document Nr. 503

[Bantam]

Does anyone have any information on (or even better a copy of) the FIA/CSI Homologation document Nr. 503 relating to the 911T?

I am aware of document Nr. 577 dated 1/1/1968 and Nr. 607 dated 1/1/1969, however, I have not seen the earlier one. I got the number from some supporting documentation I recently received regarding my '68 car.

Regards

[Bantam]

I believe this will be dated 1/1/1966 and like the two later documents will be for Group 3 Grand Touring although I would expect it will be designated for "911" rather than "911T".

[HughH]

Tim
Chris Seven posted information regarding FIA #503 here
i have a lot of these but have not seen this one or form 183 that chris mentions

this is also taken from the Appendix K regs
"901/911
- The 901/911 short wheelbase model introduced in 1963 is eligible as a GTS in Period F, to the
specifications of the FIA homologation form n° 183 of 1965 only. (i.e. excluding subsequent extensions).
Form n° 503 (Weber carburettors) is only valid for Period G.
- Cars of Period F may use the camber adjustment facility featured on the front suspension top mounts,
introduced on chassis n° 302695.
- The use of the parts listed below is permitted (GTS, Period F, homologation form n° 183):
- Fuchs 5½ inches alloy wheel.
- Löbro half shafts.
- The 901/20 type engine, and the corresponding rocker arms, may be used only in post-1966 911R.
- Minilite wheels are not authorised for cars later than 1970.
- 911 Carreras model G of the year 1974 and beyond may use 7 inches wheels at the front and 8 inches
wheels at the rear, as supplied by the make concessionaire.
- 915 gearboxes are not allowed on 911 cars before 1972.
- 911 2.7 / 3.0 RS or RSR from 1974 onwards: the crankcases can be replaced by those for the 930 Turbo
3.0 (cast numbers: 930 101 101 4R & 930 101 102 4R, or 930 101 103 4R & 930 101 104 4R), provided the
cylinder capacity remains original."

i am not sure how much it helps but does point to the observation that form 503 was about using Webers instead of Solexes