[project89]

despite having some major ignition and fueling issues today i ran the car anyways.not to well at that.after the first 3 passes with almost no boost due to a bad boost controler i decide to unhook the wastegate for one final pass.this time i get 18psi about 200' out but all the sudden the car starts to buck and i hear a bang around the 330' mark and the car shuts right off.ok so after coasting most of the way down the track i get it restarted,no noise or smoke everything seems fine.Well about halfway home the car starts smoking out the ex system.so i take it over to the shop and do a leakdown test cyls 1 threw 4 avg about 21% well i get to cyls 5&6 #5 had 43% and cyl #6 had 57% .im quessing the thing detonated so hard on that last pass that i broke the ringlands,or the rings lol last time i try to run that much boost on a stock cast pistion