Knock detection system
Turbo Mini Forums

I used to listen for knock on the alternator bracket but you get too much noise from the alternator as well as the timing chain. I have found the best place so far to be on the heater tap take off bolts, however this isnt ideal! I have just got another stepthosope sp? that i am going to fit on a head stud betwwen cyclinder 2,3

Actually whilst on the subject....

Maybe this sort of thing might be useful on an A-series with megajolt ?

http://www.jandssafeguard.com/

Edited by stevieturbo on 17th Jul, 2008.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

the Saab APC system is interesting,

basicaly it controls a bleed valve and the boost is set by a pot in the APC module, if knock is detected then the boost pressure is dropped to a safe level. usefull in case of some duff fuel.

Also you can wire a light into it.

its worth a google plenty of info on them out there.

controlling boost would be a mega slow way of preventing knock though.

but it is a novel idea....way back then.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will