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91740Gt · 06-26-07, 06:42 PM

All of the original 917s used the main top and bottom chassis rail to carry the oil from short flexible hoses at cooler and engine ends. This was a complete no-go as far as Gulf/Wyer etc teams were concerned as the frame would crack at various points on a regular basis thus making a hot oil spray a distinct possibility, especially in the event of a shunt. The chassis were subsequently gussetted at the weak points and long flexible oil lines run through the cabin on the passenger side, into the sill area and into the engine bay.
This i have done with my own car and all subsequent builds will be that way. The scrutineers will not accept any fluids running in chassis tubes on reproduction cars for racing. I,ve tried !!

The main chassis rails were pressurised and used a small Schraeder valve mounted on the upper cross member and a gauge mounted in the cockpit, usually on the passenger side sill, but sometimes on the dash. Loss of pressure was frequent !!!!

06-26-07, 06:42 PM	#8 (permalink)
91740Gt 2 Tenths Join Date: Jun 2003 Location: Specializing in Racing construction and preparation of GT40,<br />Lola, and Porsche 917 Sports Racin GT40: Suffolk, England. Posts: 290 Rep Power: 9	Re: oil through frame?!?! All of the original 917s used the main top and bottom chassis rail to carry the oil from short flexible hoses at cooler and engine ends. This was a complete no-go as far as Gulf/Wyer etc teams were concerned as the frame would crack at various points on a regular basis thus making a hot oil spray a distinct possibility, especially in the event of a shunt. The chassis were subsequently gussetted at the weak points and long flexible oil lines run through the cabin on the passenger side, into the sill area and into the engine bay. This i have done with my own car and all subsequent builds will be that way. The scrutineers will not accept any fluids running in chassis tubes on reproduction cars for racing. I,ve tried !! The main chassis rails were pressurised and used a small Schraeder valve mounted on the upper cross member and a gauge mounted in the cockpit, usually on the passenger side sill, but sometimes on the dash. Loss of pressure was frequent !!!!