fitting RB7s exhaust system and suspension details

After my exams are over, I’ve now again time to build a little bit on my RB7.

At monday I’ve already fitted the dampers and lower wishbones at the rear. It was not that easy to pack the whole damper arragement inside the very tight rear bodywork. Today, I finished the exhaust system (okay, the lambda sensor is still missing). Don’t ask me why RBR covered the whole exhaust system with that carbon fibre shield. Look at that picure © sutton-images.com. Carbon fibre is common for it’s less resistance regarding high temperatures. The most epoxide resins used in motorsport resist temperatures up to 130°C (403K), above that, they’re getting soft and the whole composite gets flexible (special resins up to 180°C). Maybe they covered the housing inside with a heat protection foil for losing as less as possible caloric heat and therefore energy. So they could improve the efficiency of the exhaust blown diffuser. As I said, only a theory. Another theory, but I can harldy believe that’s possible, is, that they tried to improve aerodynamical efficiency inside the car. RB began with that in 2010 I think. They covered the whole engine inside with heat shields for a better airflow inside the car to improve the cooling capacity. Ususal the minimum cooling entering cross-section is at least 25% of the radiator area, the exit about 50%. If you improve airflow inside, you could also improve that disturbing openings.

Top-and lower wishbone and (multimac) damper arragement.

Sadly that area will be covered by heat sields and bodywork. Maybe you could see the dampers through the vent exits at the rear.

Again the damper arragement.

I also mounted the front push-rods.

The mounted exhaust system.

Again the exhaust system. Very tight packaging.

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About paulsf1

My name is Paul Bischof. I’m a student in mechanical engineering at the Technical University of Graz in Austria, expected finishing in February 2016. Since I was eight years old, I am building model planes out of paperboard. Since 2004 I scratch (that means building without an assembling set) Formula 1 and sportscars in 1:10th scale. The average time I need for such a car is around 400 to 700 hours within 4 to 8 months. One car has around 3500 up to 5000 single components. On this blog, you can take a look on my work and later, after my studies, hopefully you can see me in Formula 1.

2 responses to “fitting RB7s exhaust system and suspension details”

  1. Jan says :

    Fabulous job!
    And indeed; it is common pratice to have ceramic coated ( no foil) carbon parts in heat sensitive places. Best of both worlds. Keep up the good work!

    Jan

    Like

  2. paulsf1 says :

    Thanks for information!

    Like

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