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Old 2007-12-04, 02:24 PM   #11
sperry
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
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Quote:
Originally Posted by IheartSTI View Post
I was reading a ecutek thread and a couple people mentioned the knock sensor was nearly ineffective after 5000 rpms. I would think with all the vibrations and abstract noises at high rpm's it would would likely play a factor on how well the knock sensor works. what rmp is a car likely to knock? under high loads or rpms?
The knock sensor is quite literally turned off at like 5400 rpms on the stock ECU. The car cannot pull timing between there and red-line because the mic is off.

Knock can occur at any time, but more-so under high loads, which is also when it's more destructive.
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