Below are some shots of the spare
F310B engine that Jon has on display.
This engine is absolutely a work of art.
Look at the welds on the exhaust headers. They
are most perfect-looking TIG welds I've ever seen. F1 headers are
welded up from individual bends and straight sections. They are usually made of Inconel - a metal that retains it's strength at high
temps. Also used on internal jet engine parts, I believe.
The close shot of the rear of
the motor is most amazing. Those levers are used to actuate the
variable-height intake trumpets and the throttle butterflies. They
are beautifully machined from titanium, with bearings at each pivot
point. Jewel-like in appearance, with no visible machining marks. The carbon fiber intake
trumpets raise up and down to change the intake resonance, which tunes
the "ram air" effect. Up at low rpms, down at high rpms.
At the top of the shot you can see the fuel
rail with the injectors. They are above the butterflies, rather
than in the head like in a road car.
At the bottom you can see the end of the crank
where the clutch attaches. No flywheel is used. Clutches are
carbon-carbon, multi-plate (usually 7 or 9) and in this car 4.5 inches
in diameter. Current cars are using 4in clutches. To the
right is a crank position sensor that reads off the clutch mounting
plate.
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