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cooling

  1. Cooling system upgrade - custom surge tank

    Performance
    So, a certain friend's Opel Ascona has been up and running for a little while now, but unfortunately the new engine creates enough heat to severely tax the stock cooling system. I came up with this 6.2 litre surge tank (and 2 litre overflow tank) to more than double the volume of coolant within...
  2. Improved coolant flow to cyl 2 & 3 exhaust valves

    Opel Tips & Tricks
    Improved coolant flow to #2 and #3 exhaust valves
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