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Opel Rallier since 1977
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So a couple of questions:
  • What is the unusual exhaust system triple piping under the car?
  • What is the fuel control above the passenger foot well, with what looks like a Holley float bowl?
 

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Discussion Starter #6
So a couple of questions:
  • What is the unusual exhaust system triple piping under the car?
  • What is the fuel control above the passenger foot well, with what looks like a Holley float bowl?
Above the foot well is a fuel catch tank, it helps to keep fuel delivery in fast corners. And because the mechanical fuel injectionpump has to be close to a fuel source to work properly. The holley float bowl keeps the correct fuel level.

The triple piping is for resonating exhaust gasses in a specific way.
 

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Opel Rallier since 1977
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1,704 Posts
Thanks... .nice trannie pan too. Not good for rallying on gravel, but I bet it helps keep the gear oil from breaking down as fast.
 

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Discussion Starter #8
Thanks... .nice trannie pan too. Not good for rallying on gravel, but I bet it helps keep the gear oil from breaking down as fast.
Yup, because we like to keep this 4 speed, it needs to cool the oil, for longer races. We put a temperature sensor to monitor this. When it become to not we are considering an oilcooler.
 
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