Bosch knock sensor
03-03-2015, 10:53 AM
#28
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Re: Bosch knock sensor
Looks good. 2 comments though:
1) I'm not sure I see the value over the $4 Toyota stud.
2) it has no wrench flats. How do you plan on tightening it on the block?
1) I'm not sure I see the value over the $4 Toyota stud.
2) it has no wrench flats. How do you plan on tightening it on the block?
03-03-2015, 11:23 AM
#30
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As for tightening i was just gonna red lock tight it in and use a shorter bolt on the female side too tq it down
03-03-2015, 12:46 PM
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Re: Bosch knock sensor
Nice work man! Doublenut outta do the trick....I'll take one for when I get my secondary sensor going here....just gotta look into the ways in which this will wire in now between the KSMS and my audio circuit
03-03-2015, 03:21 PM
#34
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Re: Bosch knock sensor
http://www.viatrack.ca/KnockMS/KnockMS.PDF
03-03-2015, 08:01 PM
#36
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Re: Bosch knock sensor
I didn't even realize it was not a double ended stud. Aren't you worried about interference? Although, since there is a nice flat surface to touch the block and knock sensor the only resonance issue might come from the "spacer" itself.
From my experience with the Toyota stud it is actually not long enough to bottom out in the block. This can somewhat make it a PITA to tighten the nut on the stud. You are almost forced to use the external torx socket and a combination wrench. Turbohatch's design eliminates this issue, so props to you man!
From my experience with the Toyota stud it is actually not long enough to bottom out in the block. This can somewhat make it a PITA to tighten the nut on the stud. You are almost forced to use the external torx socket and a combination wrench. Turbohatch's design eliminates this issue, so props to you man!
03-03-2015, 09:11 PM
#37
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Re: Bosch knock sensor
Not sure if you have the PDF diagrams or not for KSMS, but you can just wire the second sensor in parallel. Enjoy!
http://www.viatrack.ca/KnockMS/KnockMS.PDF
http://www.viatrack.ca/KnockMS/KnockMS.PDF
03-04-2015, 12:06 AM
#39
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Re: Bosch knock sensor
Any of you guys use spectrogram
Idk if im hearing knock at the 12-13 second mark. bosch knock sensor spectogram - YouTube
Idk if im hearing knock at the 12-13 second mark. bosch knock sensor spectogram - YouTube
The chirping birds sound I've heard faintly here and there at P/T Vacuum and when I removed timing it went away so in my case what I found was that around 4K from 110-860 mbar I seemed to be hearing light pinging where I heard the chirping birds/metal rod to wire fence type sound along with snaps and pops here and there that were out of sync with all other tones..
btw the sound quality is very audible, did you record this with your adapter in place, and I assume you made the same circuit design as we're all using here to listen?
Last edited by DC_Legacy; 03-04-2015 at 12:28 AM.
03-04-2015, 02:41 AM
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Re: Bosch knock sensor
This is still an excellent sample of what it sounds like which may sound similar to clipping when recorded but is pretty much what I heard at WOT on older Crome tunes that I got under control with less timing
https://www.youtube.com/watch?v=GGJZ6kKzLus&feature=youtube_gdata_player
https://www.youtube.com/watch?v=GGJZ6kKzLus&feature=youtube_gdata_player
03-04-2015, 06:11 AM
#42
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Yeah.....sounds similar to when I got knock but mine didn't occur until higher up between 7-8K (rpm)... also could have some audio clipping if the dB is too much for your PC mic... The chirping birds sound I've heard faintly here and there at P/T Vacuum and when I removed timing it went away so in my case what I found was that around 4K from 110-860 mbar I seemed to be hearing light pinging where I heard the chirping birds/metal rod to wire fence type sound along with snaps and pops here and there that were out of sync with all other tones.. btw the sound quality is very audible, did you record this with your adapter in place, and I assume you made the same circuit design as we're all using here to listen?
This was using the bosch sensor and wired up straight to my laptop.
I also used my beats headphones and the fiio6 amplifier and hear the same things if i go from 2nd gear and mash the pedal real quick i hear the bird chirp or metallic noise.
The thing with the spectorgram is i should be able to see this on the wave.
03-04-2015, 06:15 AM
#44
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This is still an excellent sample of what it sounds like which may sound similar to clipping when recorded but is pretty much what I heard at WOT on older Crome tunes that I got under control with less timing https://www.youtube.com/watch?v=GGJZ...e_gdata_player
03-04-2015, 08:21 AM
#46
DO IT ON ALL FOURS
03-04-2015, 09:04 AM
#48
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I also heard the same exact noise when i had the old det can setup at low rpm. The same chirp sound.
Heres a shot of the db levels looks like at the same point of the chirp they drop.
Im still new to reading this stuff so iono
Heres a shot of the db levels looks like at the same point of the chirp they drop.
Im still new to reading this stuff so iono