9 replies to this topic

[gablet]

Hi all,
I have scanned a picture from an old italian magazine, very interesting as a technical reference for modeling purposes.



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Unfortunately I can't find at which GP race was taken and what team used it.
The only way someone could understand more is "translating" those writing over the triangular plate.
Could someone help in any way?
My theory is it is a McLaren M23 engine.
Thanks in advance!
Gab

[Bloggsworth]

Canadian GP 22.9.1974 McLaren M23 #M23/6 - Ford Cosworth DFV V8/90° Texaco-Marlboro Team McLaren Denny Hulme (NZ) Result: 6th - I think!

[gablet]

Canadian GP 22.9.1974 McLaren M23 #M23/6 - Ford Cosworth DFV V8/90° Texaco-Marlboro Team McLaren Denny Hulme (NZ) Result: 6th - I think!

Thanks!!!

[Tim Murray]

I'm not sure how reliable the engine listings in the Autosport race statistics were, as teams regularly changed engines during race weekends. However, they definitely indicate that DFV 106 was one of McLaren's regular engines in 1974 (and 1975). It was used by Hulme in South Africa, and Hailwood in Sweden, Holland and Germany. Its next listed use was in Fittipaldi's car for the championship-deciding US GP. If this is correct it's unlikely it would have been used by Hulme in Canada. I think it more likely that the message would have been written on the freshly-rebuilt engine in the run-up to the championship decider (between Fittipaldi and Regazzoni) at the Glen, but this is obviously all pure surmise.

[gablet]

First of all many thanks to all of you for these great informations
I am collecting pictures about the 1973/74 M23 trying to route the fuel system McLaren used in those years' cars so that specific photo is really interesting.
It shows some connections impossible to see in "normal" images with the engine mounted and it was really important to me to know it was a McLaren engine.
I was totally sure it was a '74 engine because I scanned the pic from a late year issue of a famous italian magazine.
Now a question to anyone knows well the M23: I know that during 74/75 winter McLaren changed the fuel system so they used 2 different layouts in 4 years of M23 racing life but can anyone tell me more about those modifications?
Not a simple question I know.
Thanks in advance,
Gab

[gablet]

Hi all!
This is another picture of a DFV but was taken during 1977 German GP: could anyone tell which car used it?
http://img840.images.../i/7740218.jpg/
Could the written number 130 help in any way?
My theory is that it is a Wolf WR1 engine.
Many thanks in advance!

[Tim Murray]

The Autosport race statistics are no use here, as they gave up listing individual DFV engine numbers after 1976. All I can find is that DFV 130 was used by Andretti's Lotus at the 1976 Canadian GP, and was also used by Lotus in 1975.

[gablet]

Thanks Tim for your fast reply.
We can presume that 130 was a Lotus engine then.
I know for sure that number 115 was a Lotus MkIII (Type 78) DFV engine during 1977.

[Charles E Taylor]

Lotus Engines


In 1977 with the introduction of the Type 78 Lotus were looking for any advantage they could find.

One of the avenues explored was to use DFV engines prepared by Nicholson McLaren engines. Lotus had normally used Cosworth prepared units. These engines were used almost exclusively by Andretti, who thought them better than the standard Cosworth unit of the time.

One of the NME engines was evaluated on the Cosworth dyno, this began the Cosworth engine development programme which was to cost Lotus dearly during this period. The NME engines were also prone to premature failure.

Normal practice for Lotus at this time was to change engines after the first day of practice (Friday night).

The engine shown in the picture will have become a victim of Hockenheim that year when both the Type 78’s were parked side by side during the race in the stadium section of the track with engine failure.

This engine can be identified as a Lotus unit by the crude transport crate, the modified Trumpets with mounting plates for the Gauze filters and the longer Throttle shaft extension.


No question, a Lotus DFV, prepared by Nicholson McLaren Engines.


I hope this helps.




Charlie.

Edited by Charles E Taylor, 03 January 2011 - 16:05.

[gablet]

Great help Charlie, thank you!