Can we just use a stock knock sensor, in stock position, through amp to head phones? I got a little pre amp, but have been too lazy to try this out. But if its known to work then I will deffo do it.
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DIY Mapping, I5 experience
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Originally posted by diesel des View PostCan we just use a stock knock sensor, in stock position, through amp to head phones? I got a little pre amp, but have been too lazy to try this out. But if its known to work then I will deffo do it.
see here:
http://www.efiexpress.com/catalog/ar...?articles_id=4
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using a stock sensor is not using the one the engine uses. if the engine one is bad you may see lots of lovely knock on graph or hear it but does that stop the engine blowing..no
checking condition and torque of factory sensors is handy. as is hitting one with a spanner lightly to simulate retard knock for retard. can be done at idle.
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Originally posted by a4kquattro View Post
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Originally posted by adam g View PostDoes this work well for you? so the laptop is used as the amplifier and thats it or do you use some sort of filtering/visual software.
spotting knock is easy.
no knock:
http://www.theswansonfamily.us/modul..._s6_onramp.mp3
knock:
http://www.efiexpress.com/downloads/knock.mp3
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Originally posted by sam80quattro View Postis there any books or guides anyone can recommend reading for getting into mapping?? im gonna have a go at mapping my 10vt on 034 but would like to read up as much as possible before starting.. or is it a case of dive in and get on with it?
You will probably find one of the biggest drawbacks is not having a rolling road. The open road is okay for getting it running pretty well but I think it will be difficult to map it on to get the most out of my car so will probably pay someone else for the fine tune.
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I prefer open road to be honest.
I don't drive on a rolling road. I prefer to either drive and log or be the passenger and tweak as I go.
ive found that air, temp and other factors such as hills and driving style affect certain parts. granted rollers allow you to set rpm etc.
leaning to know what is needed is prior knowledge plus experience. first mapping session I ever did burned a hole in a Subaru ported header. good job it was weak. that was on map apparently written at the time by the best Subaru tuner around. timing was so low egts went up faster than fuel prices at the moment
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Originally posted by GazzaG60 View Postchecking condition and torque of factory sensors is handy. as is hitting one with a spanner lightly to simulate retard knock for retard. can be done at idle.
Probably not too relevant to what you said.
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Originally posted by adam g View PostJust to be clear - is the mic JB welded on the back of the clip somewhere and the teeth of the clip used to hold it onto the engine, so the noise is transferred through the metal clip?
After this the mic will only pick up vibrations transmitted through the metal clip and no outside noise. Don't try to use glue for this, as glue will melt.
Cementing the mic to the clip is very important, otherwise it's like just putting a mic dangling in your engine bay, which is completely useless.
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