Hey Guys!
Just found this alternative device for knock detecting, your own stereo engine sound
Very handy with tuning the ignition tables 
Here is the link to the article from autospeed: http://autospeed.com/cms/A_0353/article.html
And a example pic from someone who made it already:
I'm making mine tomorrow!
Just felt the need to share it
Cheers
Just found this alternative device for knock detecting, your own stereo engine sound
Here is the link to the article from autospeed: http://autospeed.com/cms/A_0353/article.html
And a example pic from someone who made it already:
I'm making mine tomorrow!
Just felt the need to share it
Cheers