VIN: the Brumos Racing / Bruce Leven Porsche 934/5 chassis 9307700952

Porsche - Porsche 934 - Porsche VINs - 934 VINs - Peter Gregg - Brumos - Bruce Leven - Les Lindley - Dennis Aase

History of chassis 9307700952

Having produced 31 examples of the original 934 in 1976, Porsche manufactured a batch of ten uprated cars for the 1977 season. Dubbed 934/5, these latest iterations were created for the US market where the IMSA championship (run to Group 4 regulations) now permitted turbocharged engines.

Most notably, the 934/5 came with a more powerful engine in addition to the wider wheels and rear spoiler from the 935.

Chassis 9307700952 (‘0952’) was the second 934/5 delivered to multiple IMSA champion, Peter Gregg. Gregg was Porsche’s top representative in the USA and owner of the world famous Brumos Porsche dealership in Jacksonville, Florida.

Gregg had used his first 934/5 (chassis 9307700951) to contest the 1977 Sebring 12 Hours where he and Jim Busby finished third overall. This car was then sold to Busby.

Meanwhile, Gregg retained ‘0952’ for his ‘77 campaign and planned to race it in that year’s IMSA championship. However, the new car failed scrutineering for its debut outing, a 100 mile race at Road Atlanta on April 17th. It transpired that Gregg had fitted ‘0952’ with several un-homologated parts from a 935 he had taken delivery of (chassis 9307700909 – which remained un-raced during the 1977 season).

In protest at his treatment, Peter Gregg planned to play no further part in that year’s IMSA championship (although he later relented and did contest the Mid-Ohio 3 Hour race in August)). Instead, he used ‘0952’ to contest the 1977 Trans-Am series, two rounds of which formed part of the World Sportscar Championship.

Gregg got off to an inauspicious start in the eleven round Trans-Am series when, having set a time quick enough for pole position at Kent, he crashed out and ‘0952’ could not be repaired in time to start.

Thereafter, Gregg contested nine of the remaining ten races (skipping round three at Portland). In the seven non-World Championship graded he events, he took six pole positions and five wins.

At the Watkins Glen 6 Hours (round five of both the Trans-Am and World Championship), Gregg was co-driven by Claude Ballot-Lena and John Gunn. For this event, the governing body was the FIA who categorised the 934/5 as a Group 5 car. ‘0952’ started and finished sixth.

At the other dual World Championship / Trans-Am contest (the Mosport 6 Hours, round eight), the FIA excluded the pole-starting and event-winning duo of Gregg and Bob Wollek after ‘0952’s suspension set-up was deemed illegal in post-race scrutineering.

In his solitary IMSA outing of the year, Gregg won the Mid-Ohio 3 Hour race having started from tenth.

Peter Gregg ultimately won the 1977 Trans Am title having accumulated 185 points compared to runner up and fellow 934/5 driver Ludwig Heimrath’s 162.

For 1978, the IMSA organisers decided to allow the Group 5 935 to compete and Peter Gregg finally got to race his thus far mothballed example.

As for ‘0952’ it was sold to Seattle waste disposal magnate, Bruce Leven, for his first year of serious motor racing. Campaigned under the Bayside Disposal Racing banner, ‘0952’ finished each of the seven races it started as Bruce Leven proved himself perfectly capable of competing at such a high level. Highlight of the season was fourth overall at Portland.

Encouraged by his debut campaign, Leven went on to purchase Peter Gregg’s old 935 for 1979 (chassis 9307700909).

‘0952’ was sold to collector Les Lindley who retained it for just under ten years. It then passed onto fellow Porsche racer, collector and salvage yard owner, Dennis Aase, since which time it has been sold again.

Notable History

Sold to Peter Gregg, Jacksonville, Florida (Brumos Porsche+Audi)

17/04/1977 IMS Road Atlanta 100 mile (P. Gregg) DNS (#59)
30/05/1977 TRA Kent (P. Gregg) DNS (#59)
05/06/1977 TRA Westwood (P. Gregg) 1st oa, 1st TA II class (#59)
26/06/1977 TRA Road Atlanta (P. Gregg) 7th oa, 4th TA II class (#59)
09/07/1977 WCM Watkins Glen 6 Hours (P. Gregg / C. Ballot-Lena / J. Gunn) 6th oa, 6th Gr.5 class (#59)
31/07/1977 TRA Hallett (P. Gregg) 1st oa, 1st TA II class (#59)
14/08/1977 TRA Brainerd (P. Gregg) 1st oa, 1st TA II class (#59)
20/08/1977 WCM Mosport 6 Hours (P. Gregg / B. Wollek) DSQ (#59)
28/08/1977 IMS Mid-Ohio 3 Hours (P. Gregg) 1st oa, 1st Gr.5 class (#59)
03/09/1977 TRA Road America Race I1(P. Gregg) 2nd oa, 2nd TA II class (#59)
04/09/1977 TRA Road America Race 2 (P. Gregg) 1st oa, 1st TA II class (#59)
11/09/1977 TRA Mont Tremblant (P. Gregg) 1st oa, 1st TA II class (#59)

Sold to Bruce Leven, Mercer Island, Seattle (Bayside Disposal Racing)

04/06/1978 TRA Westwood (B. Leven) 7th oa (#85)
11/06/1978 TRA Portland (B. Leven) 4th oa (#85)
13/08/1978 TRA Brainerd (B. Leven) 7th oa (#85)
19/08/1978 TRA Mosport (B. Leven) 16th oa, 10th Cat II class (#85)
04/09/1978 TRA Road America (B. Leven) 14th oa (#85)
08/10/1978 TRA Laguna Seca (B. Leven) 6th oa (#85)
05/11/1978 TRA Mexico (B. Leven) 12th oa (#85)

Sold to Les Lindley, Fullerton, California

Later sold to Dennis Aase, Orange County, California

Text copyright: Supercar Nostalgia
Photo copyright: Porsche - https://www.porsche.com