whats an acceptable ammount of knock ?
12-06-2009, 08:52 PM
#1
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whats an acceptable ammount of knock ?
ive got a knock sensor readout on my power fc ecu and it reads up to 100 %. what is acceptable ammount of knock to see ?
12-06-2009, 09:09 PM
#6
PowerFC knock reading using standard Knock sensors on a Skyline should be set with a warning threshold that when hit will light the management light (depending of course on the mapper)
This limit is usually set to 40 on most cars, but I think it's 60 on Skylines. Anything up to this amount is 'OK'. Spikes beyond this amount may be acceptable too if they really are just spikes and you don't actually 'see' them occur.
This limit is usually set to 40 on most cars, but I think it's 60 on Skylines. Anything up to this amount is 'OK'. Spikes beyond this amount may be acceptable too if they really are just spikes and you don't actually 'see' them occur.
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12-06-2009, 09:22 PM
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you can have pressure values at what the det is at but not a percentage of a det.
13-06-2009, 07:33 AM
#9
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PowerFC knock reading using standard Knock sensors on a Skyline should be set with a warning threshold that when hit will light the management light (depending of course on the mapper)
This limit is usually set to 40 on most cars, but I think it's 60 on Skylines. Anything up to this amount is 'OK'. Spikes beyond this amount may be acceptable too if they really are just spikes and you don't actually 'see' them occur.
This limit is usually set to 40 on most cars, but I think it's 60 on Skylines. Anything up to this amount is 'OK'. Spikes beyond this amount may be acceptable too if they really are just spikes and you don't actually 'see' them occur.
apparantly it spikes 100 but doesnt hold it il check it today. thanks for the info matey.
13-06-2009, 09:19 AM
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I had my Impreza mapped with a Power FC. Up to about 15 was the norm, but occasionally it would spike to 30 or higher. Obviously it picks up interference from time to time too though.
13-06-2009, 11:49 AM
#18
i would spend the money rebuilding youres than buying another...
They are all low miles when they are being sold.
Speak to tweenierob im sure he will help sort it, I always used ron at RK but as rob know the car already he may be better for you.
They are all low miles when they are being sold.
Speak to tweenierob im sure he will help sort it, I always used ron at RK but as rob know the car already he may be better for you.
13-06-2009, 11:57 AM
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13-06-2009, 12:04 PM
#20
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i think il ring him monday as he knows the car. i got a friend of mine gonna have a listen tmrw. ive read they have a common fault with the oil pump on the pre 1992 rb26detts. it certainly doesnt sound or feel like a big end failure to me. im gonna go check prices on rebuild parts now
if its worst case scenario.
13-06-2009, 12:59 PM
#24
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im gonna get my mate to watch the power fc monitor while i drive it tmrw. what would the garage where you work charge for an engine freshen up mate ? shouldnt be to bad cars only done 55000 miles.
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