Gen 3 alfa racing or h20 additional radiator

[Paul Barker]

Hi has anybody done this modification? Interested for any feedback as my track bike is running hot and pushing coolant into the expansion tank after every 20 min session. I am going to fit an upgraded cap from reactive parts as this should help.
If anybody has one of these radiators and hose kits for sale I will be interested, as no longer available new from alfa!

 

[Gobert]

Does the cooling system retain pressure after the bike cools? (there is an issue with heads lifting under hard use)