On the right of the photo, left side of car, in the panama hat? Could be.
On the right of the photo, left side of car, in the panama hat? Could be.
Definitely Montlhery. Mid-1920s approx?Not Vanderbilt but interesting none the less. I don't know what it is but it has the correct logo to be on Montlhery.
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It's the tyres that get me about those early records. Still, they seemed to last well enough. Good Vietnamese rubber no doubt!The front of the Renault 40cv had similar high, angular lines. The rear of this modified record breaker version is quite different.
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Google translation "From the first months following its inauguration, the Autodrome was the scene of many exploits: speed records fell, whether by car, motorcycle or even bicycle. In 1926, a modified Renault 40 CV broke the 24-hour record by covering 4,167.57 km at an average speed of 173.6 km/h."
From
Renault 40 CV NM (1926) - L'Autodrome de Montlhéry fête ses 90 ans - diaporama photo Motorlegend.com
Dès les premiers mois suivant son inauguration, l'Autodrome est le théâtre de nombreux exploits : les records de vitesse tombent, que ce soit en auto, à moto ou même à vélo. En 1926, une Renault 40 CV modifiée bat le record des 24 heures en couvrant 4 167,57 km à la vitesse moyenne de 173,6 km/h.photo-voiture.motorlegend.com
That engine looks like it should be a project build for Master G now that he has forging and machining masteredIt's the tyres that get me about those early records. Still, they seemed to last well enough. Good Vietnamese rubber no doubt!View attachment 224551
It sounds pretty good too. A deep roar. I imagine most power is 2,000-3,000 rpm. Their 8-cylinder one, also a side-valve, sounds surprisingly modern in comparison.That engine looks like it should be a project build for Master G now that he has forging and machining mastered
It has just occurred to me that this 1920s engine has a fixed head. The cylinder/head casting is bolted to the crankcase as one unit. The brass plugs in the top of the head are where the valves are inserted. It looks like a fairly short stroke too which is why it sounds like a modern engine. There are numerous videos of these cars at full noise available.It sounds pretty good too. A deep roar. I imagine most power is 2,000-3,000 rpm. Their 8-cylinder one, also a side-valve, sounds surprisingly modern in comparison.
I wondered what the brass plugs were! Valve AND seat assemblies I imagine. I read once that to remove a valve from a Bugatti Type 35 you really start by removing the rear axle. Imagine..........It has just occurred to me that this 1920s engine has a fixed head. The cylinder/head casting is bolted to the crankcase as one unit. The brass plugs in the top of the head are where the valves are inserted. It looks like a fairly short stroke too which is why it sounds like a modern engine. There are numerous videos of these cars at full noise available.
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