Knock sensors
Turbo Mini Forums

This is one for the experts on here.

Is there a (not too complicated or expensive) way to add a knock sensor to Megajolt ?

Will a knock sensor coupled to a management system such as Megajolt prevent detonation in all circumstances ?

You can probably see the way my mind is working - run the boost up to just short of detonation,but I guess better minds than mine have already been down this route.

The problem with knock sensors is that you have to calibrate them. They'll look for a particular frequency to be excited. Trouble is you're not going to know what that is without some tests and obviously it is a bit tricky with highly boosted engines to get near to the problem conditions without doing damage.

1275 N/A Sprite, 998 T2 Turbo Mayfair
1275 EFi Turbo

Aftermarket programable ECU's, except perhaps the high end systems, are not clever enough to run active ignition systems. Knock detection in this instance is more of a safety factor, and the engine should be tuned to avoid knock in every situation you will encounter with only knock action taking over when there is an abnormality. Running the system in knock action is asking for trouble

I thought it wouldn,t be simple.