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Old 01-03-2019, 03:08 PM   #17 (permalink)
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Location: Belgium
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GasDwarf - '13 Volkswagen up! EcoFuel CNG
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Originally Posted by smurfbus View Post
Have you tested it with your eco up?
No, it already draws its air close to the engine, with the engine layout leaving little room to route it anywhere else

For the uninitiated:
The red circle is the natural gas injection system.
To the left of the air intake trumpet is the CNG pressure regulator/coolant heat exchanger that warms up the expanded, and thus chilled, natural gas
(expands from ~ 200 atm to ~ 7 atm)
GasDwarf's fuel consumption :
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