with the engines i build, i run in the cams as per its spec sheet, take it for a good long drive 200ks+ without sitting at one engine speed for too long.. drive it for another 300ks or so, replace the run-in oil for synthetic and go from there i dont believe people that say the rings have to settle in they do that in the first 5 seconds of the engine starting if you have assembled them to the right tolerances basically change oil and filter within 500ks and dont do short trips during the run-in period. you will probably be disappointed with the output of the engine to start with but it slowly frees up
Tue, 30 July 2002 11:19
