Frequency that Knock occurs at..?
29 July 2003, 03:02 PM
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any of you guys know what frequency (or range) knock (det) occurs at?
cheers,
simon.
29 July 2003, 03:05 PM
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[Edited by ozzy - 7/29/2003 3:11:13 PM]
29 July 2003, 03:07 PM
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Although, having read some other sites they suggest it's unique to engine design
This page has a formula.
One of the engine tuner guys will know what the range is on an Impreza I'm sure.
Stefan
[Edited by ozzy - 7/29/2003 3:10:12 PM]
29 July 2003, 03:10 PM
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i recall someone mentioning it roundabout 6khz ?
29 July 2003, 03:12 PM
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Detonation resonant frequency (KHz) = 1800 / (Pi x Cylinder Bore in mm)
On an EJ20 its around 6.23KHz.
Andrew...
29 July 2003, 03:12 PM
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kewl, cheers andrew
[Edited by snowcrash - 7/29/2003 3:12:44 PM]
29 July 2003, 03:14 PM
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Cross posted with loads of people there!
EJ20 Bore is 92mm, hence my 6.23KHz (1800 / 3.142 * 92)
Andrew...
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