Originally posted by Profoxcg
does the r40 have this problem? (Centax problem in genral? )
Any car when the Centax clutch not set correct would have problems. Any car when the thrust bearing of the Centax clutch not set correct would blow out.
BTW, it also depends from one engine to another and the pipe / manifold combo. This is why the 1.0 mm setting in the manual is just a starting point for you to tune and it is not the be-all-and-end-all setting.