Thread: knock sensor
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nize nize is offline
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Originally Posted by kenikh View Post
You can apparently ballpark the frequency by piston diameter, but the actual variables are numerous and require advanced math to resolve. Here's a start:

Resonant knock frequency (kHz)= 900/(pi x cylinder radius)
and that, really, is the 'secret formula'...
'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!)
Old 08-10-2009, 12:16 PM
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