Knock volt count
#1
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Knock volt count
I did two separate logs of just free revving the motor and it showed anywhere from .2 to 1.5 volts of knock especially above 3500 rpms.
Is this normal?
Is this normal?
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Originally Posted by jj_008
It's normal. It's just engine noise and it will increae w/ engine RPM. Your engine is pretty loud though.
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The reason I was asking if it should be "that" high while free revving is because I have had an issue with knock for months now and I can't figure out why.
My car knocks like a sob for some reason. Even on race gas/methanol and leaving the ignition tables alone it still shows knock.
My car knocks like a sob for some reason. Even on race gas/methanol and leaving the ignition tables alone it still shows knock.
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Originally Posted by EVOONYOASS
The reason I was asking if it should be "that" high while free revving is because I have had an issue with knock for months now and I can't figure out why.
My car knocks like a sob for some reason. Even on race gas/methanol and leaving the ignition tables alone it still shows knock.
My car knocks like a sob for some reason. Even on race gas/methanol and leaving the ignition tables alone it still shows knock.
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Originally Posted by EVOONYOASS
Establish my noise floor? Please explain!
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Considering I don't have any det cans or whatever they are, could the log be showing a bigger more serious issue?
What else besides noise could be causing over 1.5 volts of knock while free revving? Internal engine damage, valves, etc..?
What else besides noise could be causing over 1.5 volts of knock while free revving? Internal engine damage, valves, etc..?