right guys, as some of you know my track time a japfest2 wernt kind to the car, did about 2 laps and the temp needle started bouncing around all over the spot so took it steady and it went back to normal, did another fast lap and boom above red so got it off track and pushed it back to the stand. opened the bonnet and coolent all around the expansion bottle and nothing left in it. so left it to cool for a few hours, filled it up with water and its started 1st time without a problem and drove the 150mile home without issue. took it to work monday with no problems but used the van all week to avoid the hassle, brought it home last night and when i started it up it had a missfire so thoiught it was hg for sure, but the missfire stopped within a few seconds. had some spare new plugs at home so popped them in last night just to try. took it to work this morning with no issue, so on the way home i kicked its teeth in and it was fine, boosting as normal. just done a compression test now, piston 1 2 3 4 all roughly the same. only thing i did notice is that piston number 3 spark plug was abit wet shined a light in and the top of piston 3 looks very slightly damp but got the best result from the compression test!? sorry for the long thread, any help off you guys is always appreciated! tar muchly!