1SlowSi

Hey everyone. I am hoping to get some assistance in diagnosing a valve train noise/issue. This noise came out of nowhere not driving the car hard, just a lot of cold starts/warm up to keep things flowing for a couple months while it was on jack stands. It is not consistent with a bad TCT but of course I'll try it last if nothing else works.

Super tech dual valve springs and retainers, titanium retainers only 900 miles on them. Valve adjustment was just done and is spot on .008/.010" per manual. Stock cams 700whp, stock chain approx 15k miles on it. I cannot visually see anything wrong with the valvesprings or retainers.

It happens cold or hot now and hasn't gotten louder just yet. It used to only happen when hot but now its all the time. I understand that with open turbo inlet and wastegate dump tubes that I'll hear the valvetrain a little more but this is excessive and not what it sounded like before. It used to be dead quiet minus the injector clicking.

I am going to try replacing the lost motion assemblies next since its a cheap/easy replacement. If that doesn't work, at least it will be brand new.

Does anyone know if high hp cars effect chain stretch any more than a stock S2000?

http://youtu.be/UfxGfCZK5-s?list=UUw...LKG8TFTjo5tNkg