This is cranktrigger kit what I am talking about . I made this 6 years ago and reason was : C30A has some problems on crank trigger what is located on cam ! System works ok when engine accelerates fast . Gears 1-4 there is no big problems but when you chance 4>5 or using 5th gear there is point when cam timing system has huge vibrations and that causes timing errors on engine. On airfield you can feel it , data logger has rpm movement 50-120 rpm. Problem is always in same spot 6800-7200rpm. I made new trigger system on crank and now problem is gone and rpm movement is only 0-20 rpms ( HKS datalog value). CAM referencepoint (sync) is still on cam. With new trigger system rpm signal is very stable idle to rev limit you can feel it and hear it ! BUT problem is still there ! Cam timing error does not go nowhere , but now your crank timing is perfect and steady.Lets look at cam gears. 4 gears and all these are different by weight. Front blanc 4-5-6 exhaust gear is light so is the intake RR 1-2-3 .FF intake gear has timing sensors for both blancks (weird). AND RR exhaust gear is SOLID STEEL. This is clear evidence at this enginehad problems on this area. Heavy gear on RR exhaust cam has some inertia so it dampers vibrations( last one before grank gear) . It will do its job but it is not perfect! So are you “smarter” than HONDA R&D?( If using ligthweight gears) Same way all engine manufacturers do, nothing new. But normally used on diesels on low speed.Sensor is inductive so it is same type as OEM ! ONLY FOR AFTERMARKET ECUS !Kit price is 350€ ( about 431usd) Mail:[email protected]