Ultimate ST thread

[Harvey Weidman]

I was told (by Porsche research) that the last factory "2.5" (ST) was the Keyser/Beasley car. I'll get the chassis number or I'm sure Gib will chime in. He had a mag article about the car.
H

[letsrollbabe]

I posted some details about this car from a 92 magazine article (post 249, p. 25 of this thread):


I came across an article form an old European Car Magazine by Steve Hornby (June 92) in which he describes a ride around the track at Moroso Motorsports Park near Palm Beach, FL in the restored Silverstone Racing 2.5L ST (73 Daytona 24, #77). This ST (911 230 1687) finished 4th overall (ahead of Kremer [6th], and Toad Hall [8th]), driven by George Stone, Bruce Jennings, and Mike Downs.

Steve Hornby's article captured my imagination as I read it because it was such an honest description of what it was like to ride in a restored 275hp 911ST as a passenger. The car passed through the hands of Bob Beasley, and then to George Drolsom, and finally as this article was written to Dennis DeFranceschi. It had gone from an ST to an RSR bodied car in the IMSA GTU class, and George Drolsom won the Porsche Cup in 75 in the under 2.5L class with it. Dennis returned it to an ST to compete in SCCA and SVRA vintage events still carring #77, and riding on 7+9x15 Fuchs as seen in the pic below.

The article said the car was delivered to George Stone and Bruce Jennings of Silverstone Racing in Aug. 72...which would probably put it near the end of the factory STs.

[Harvey Weidman]

Sorry, the same car. I have always heard it referred to as the Keyser/ Beasley or the Jennings (77) car. When records were requested from Porsche racing two years ago; they said by the way that is the last 2.5. The cars after were part of 73 RSR project. I have never experienced such a definitave answer. I think the cars after were part of the 73 RSR homoligation effort.
H

[Marek]

Hi Guys

here are the pics of the tank I had in mind

and a pic from the boat of a 72St I did for a Danish client ,missing rear bumper, and some wheels, engine , suspension etc :-)

[Flunder]

I was wondering if anyone had documentation as to when the front fenders were allowed to be fiberglass.Zazada's car has both entire front fenders in fiberglass and was added sometime during it's early racing carrier there is a letter from the factory that these are not legal for the RS series or the RSR.

When was it legal to have fiberglass entire fenders? i don't see that in any of the homologation documents that i have.

Any insight or thoughts would be appreciated.

raj


BTW The 914/6GT has fiberglass homologated so it does not surprise me that the 911 should also but just looking for documentation and which ST's had these?

Raj:

Most of the Group 4 Special GT parts were homologated for the C series 911S with the FIA in November 1969.

Those Group 4 parts included entire front fenders in grp as described in the homologation papers as follows:

aile avant gauche en plastique 911 503 901 00
aile avant droite en plastique 911 503 902 00

[HughH]

Raj

it is FIA 3025 for the 1970S page 12 on my copy just above the photos of the ST flares which are also homologated by that doc. there is a whole bunch of plastic and plexiglass stuff on that page

here is a photo of that page for people with better french than mine

[Flunder]

Raj

it is FIA 3025 for the 1970S page 12 on my copy just above the photos of the ST flares

Raj:

That is the same homologation doc that I looked at in answering your question.

However, I should add that it is also very interesting to note that the same fenders as well as all the other updates were added to each of the already existing homologations for 68T (Nr. 577), 69T (Nr. 607) and 69S (Nr. 608) via an amendment to those FIA/CSI documents on 15 May 70.

These amendments allowed the older chassis, including the SWB 68T and LWB 69T and 69S to be updated to the full 1970 spec for Special GT Group 4 racing.

This helps explain much of the confusion relating to how it was that so many older chassis morphed into wide body ST spec.

The point is that the homologations for all these cars were not static documents. Far from it.

Rather they were ones that stayed in a dynamic state over the course of a few seasons and allowed the factory a means of keeping teams with older chassis on the race grids with entries that were potentially fully competitive with cars newly built to the latest factory wide body ST spec.

[uai]

S-AK1336 featured in Sport Auto
Sorry typo in header

[uai]

This are more than 10 Chracters

[letsrollbabe]

It is interesting that in that Sport Auto article, it mentions that the 72 ST (maybe the one pictured) used 46 Webers....confirming our earlier discussions on the 2 induction choices for the 2.5L engines.

Tom: Your comment about the homologation papers in '70 allowing updating of Competition cars over several seasons also confirms some of our earlier discussions about all the cars we see in period pics that are of different MY than the event and with wide flares, and other enhancements.