stand alone knock sensors

rich728 · 05-10-2005, 02:19 PM

The only one ive found is knocklink. Any others on the market?

for those with a knocklink, how accurate are they?

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pyrex · 05-10-2005, 03:38 PM

MSD makes "Engine Knock Alert" http://www.msdignition.com/tool_8.htm

I just installed a knocklink, although I haven't seen any det yet I think it is pretty sensitive. I can see low level (green light) activity when I really get on it and I'm not even sure that I installed the sensor correctly. I used the bolt that is right next to the stock sensor. There was a bracket already on the bolt so I put the sensor on top of the bracket, using a longer bolt. I don't know if the bracket affects the sensitivity of the sensor or not.

wgknestrick · 05-10-2005, 05:47 PM

Some company really needs to package this in a 52mm or 60 gauge format. All (well both of them) knock sensors are very crudely mounted and finished off in cheap plastic housings. I dare you to find a place to mount either where they are clearly visable and look like they belong. I would pay dearly for something that was complete, and came in a gauge housing that could be mounted just about anywhere.

Kind of like what AEM did with their UEGO A/F meter. Before them, no one even made something that was packaged so well.

coolcougar · 05-10-2005, 06:33 PM

Quote:

Originally Posted by wgknestrick

Some company really needs to package this in a 52mm or 60 gauge format.

You mean like this:

wgknestrick · 05-10-2005, 06:43 PM

Not quite. While yes that is in a gauge format, knock is not something well represented by an analog dial. Unless it flashes and beeps past a certain level, it is mostly novelty to me.

I want a simple LED linear meter in a gauge that beeps and flashes past a user set point. I don't want to see or hear anything out of that thing unless there is trouble.

Try monitoring that gauge when at WOT. How do you discern between 40 and 60 (what is it in %?) You are in knock trouble for a split second.

rich728 · 05-10-2005, 09:26 PM

Quote:

Originally Posted by coolcougar

You mean like this:

It says digital but it looks analog. Anyone know how it works?

Jaxx · 05-10-2005, 10:01 PM

j&s is probbly the best

Wombat North · 05-11-2005, 01:52 AM

Quote:

Originally Posted by wgknestrick

Some company really needs to package this in a 52mm or 60 gauge format. All (well both of them) knock sensors are very crudely mounted and finished off in cheap plastic housings. I dare you to find a place to mount either where they are clearly visable and look like they belong. I would pay dearly for something that was complete, and came in a gauge housing that could be mounted just about anywhere.

Kind of like what AEM did with their UEGO A/F meter. Before them, no one even made something that was packaged so well.

OK

rich728 · 05-11-2005, 06:03 AM

now that is a a really slick install. is that knocklink? i hope you made a how to guide

xcntrk75 · 05-11-2005, 10:44 AM

How are you guys interfacing an audio mechanism (buzzer) with your knock monitors? I imagine the LED solution would be hard to see in some daylight circumstances. Not to mention while under heavy throttle with both eyes glued to the road…

fogdor · 05-11-2005, 12:26 PM

I've been kicking around the idea of building my own "knock sensor" for a few months. Basically you have a microphone, a filter, and an led bar-graph display. How hard could it be?

Playsatan · 06-26-2005, 08:45 AM

This is a knocklink that I modified

I'm not any good with wiring so the entire box it tucked into the dash. I just took the cover off, used the holes in it as a template and drilled through to allow the leds to drop through. 30 minute job max.

Keeps it in your line of site as well although I was tempted to do it through the top of the dash and turn it into a HUD.

Jon [in CT] · 06-26-2005, 05:16 PM

A $50 product called "Knocksense" seems to be popular within the Volvo community. See http://www.viatrack.ca for what skimpy details exist about it.

cdvma · 06-27-2005, 02:13 PM

Quote:

Originally Posted by fogdor

I've been kicking around the idea of building my own "knock sensor" for a few months. Basically you have a microphone, a filter, and an led bar-graph display. How hard could it be?

Good luck making a filter thats accurate.

Paul · 06-29-2005, 06:53 PM

Quote:

Originally Posted by coolcougar

You mean like this:

where can i buy one of these

Unabomber · 06-30-2005, 12:38 PM

Links to some other detonation monitoring options:

http://www.jandssafeguard.com/
KnockLink
Casper knock sensor
Snap-On Electronic Ear Part Number: YA6500 AKA det cans

bboy · 07-03-2005, 01:39 AM

I've made mine own knock listening device.
$20 Bosch knock sensor (used at a Volvo junk yard, excuse me, salvage yard)
$10 cable with aligator clips and a minijack audio plug from Radio Shack
Plug the microphone (knock sensor) right into the computer.
I filter out all frequencys except 5-10 kHz with equalizer in sound software (I use a Mac specific program Final Vinyl but I've used other effectively--30 band equalizer, but it's overkill). Sound is processed and played through on the computer speakers or via head phones. Det sounds are very distinct as everyone knows.

It's just for tuning, but it works as well as TXS Tuner.

SleepinRex · 07-03-2005, 01:46 AM

thanks for the link unabomber. Anyone happen to know any good vendors selling knocklinks. Found a coupel that were out of business or overseas.

Tgui · 07-04-2005, 12:57 PM

Sort of on topic... where the heck are you people mounting your knock sensors? I tore my intercooler off looking for some great place to mount mine, but no luck.

InfamousDX · 07-26-2005, 01:22 AM

Quote:

Originally Posted by Tgui

Sort of on topic... where the heck are you people mounting your knock sensors? I tore my intercooler off looking for some great place to mount mine, but no luck.

Same here... back when I DID use my tuner pro's knock sensor I couldn't find a place to mount it. I wanna start using it again but I still have no idea where to put it.

WolfPlayer · 07-26-2005, 04:19 AM

Quote:

Originally Posted by bboy

I've made mine own knock listening device.
$20 Bosch knock sensor (used at a Volvo junk yard, excuse me, salvage yard)
$10 cable with aligator clips and a minijack audio plug from Radio Shack
Plug the microphone (knock sensor) right into the computer.
I filter out all frequencys except 5-10 kHz with equalizer in sound software (I use a Mac specific program Final Vinyl but I've used other effectively--30 band equalizer, but it's overkill). Sound is processed and played through on the computer speakers or via head phones. Det sounds are very distinct as everyone knows.

It's just for tuning, but it works as well as TXS Tuner.

Info on which specific knock sensor along with how you wired it up would be awesome. Great idea. A++ in my book.

t

singletrack · 08-13-2005, 02:34 PM

I just wanted to revive this thread to show the location of the knock sensor I installed on my STi. This is the bosch sensor commonly sold with the knocklink. It's installed at the same angle as the stock sensor which is not visible in the pictures; I'm not sure if it makes a difference really.

In order to get the bracket to fit on top of the sensor, you can insert a 1/4" extension into the hole in the bracket and bend it slightly. I can't recall the length, thread, etc of the bolt, but I just pulled the stock one, drove to the parts store, and came back with one that was longer.

A quick tip - when replacing the intercooler (assuming you have a TM) use a touch of soap on the outside of the compressor outlet to make sure the rubber boot slides on easy : )

coolcougar · 08-13-2005, 07:20 PM

There appears that there may be another option for a possible stand alone knock sensor... I'm not 100% that this is stand alone though...

http://forums.nasioc.com/forums/show...php?p=10718893

Jaxx · 03-09-2007, 02:41 PM

i though i would bump this as its linked in the ecu faq and add an important thing is not mentioned

most knock "lights" will only display the knock, the JandS will actually retard advance up to 20 deg /cyl when it senses knock ..

this is very useful when tuning with an ecu that has insufficient knock sensing/retard like a powerfc or autronic

IllNastyImpreza · 03-09-2007, 08:58 PM

so whats the best one for the money? where can I purcahse them ?

05-10-2005, 02:19 PM	#1
rich728 Scooby Specialist Member#: 40328 Join Date: Jul 2003 Chapter/Region: South East Location: MiamiFL Pastelito Racing/SFSOC Vehicle: 2004 WRX STi BSP #728	stand alone knock sensors The only one ive found is knocklink. Any others on the market? for those with a knocklink, how accurate are they? * Registered users of the site do not see these ads.

05-10-2005, 03:38 PM	#2
pyrex Scooby Newbie Member#: 45757 Join Date: Oct 2003 Chapter/Region: SWIC Location: Flagstaff/Mesa, AZ Vehicle: 2005 WRX STi CGM/Silver	MSD makes "Engine Knock Alert" http://www.msdignition.com/tool_8.htm I just installed a knocklink, although I haven't seen any det yet I think it is pretty sensitive. I can see low level (green light) activity when I really get on it and I'm not even sure that I installed the sensor correctly. I used the bolt that is right next to the stock sensor. There was a bracket already on the bolt so I put the sensor on top of the bracket, using a longer bolt. I don't know if the bracket affects the sensitivity of the sensor or not. Last edited by pyrex; 05-10-2005 at 03:43 PM. Reason: clarity

08-13-2005, 07:20 PM	#23
coolcougar Scooby Specialist Member#: 19674 Join Date: Jun 2002 Chapter/Region: TXIC Location: Copenhagen Vehicle: 2006 Baja Turbo 4EAT Brilliant Silver Metallic	Another possibility? There appears that there may be another option for a possible stand alone knock sensor... I'm not 100% that this is stand alone though... http://forums.nasioc.com/forums/show...php?p=10718893 Last edited by coolcougar; 08-13-2005 at 10:58 PM. Reason: poor Spelling

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05-10-2005, 05:47 PM	#3
wgknestrick Scooby Specialist Member#: 32576 Join Date: Feb 2003 Location: Allentown, PA Vehicle: 04 STI Roller Barrel ITBS	Some company really needs to package this in a 52mm or 60 gauge format. All (well both of them) knock sensors are very crudely mounted and finished off in cheap plastic housings. I dare you to find a place to mount either where they are clearly visable and look like they belong. I would pay dearly for something that was complete, and came in a gauge housing that could be mounted just about anywhere. Kind of like what AEM did with their UEGO A/F meter. Before them, no one even made something that was packaged so well.

05-10-2005, 06:43 PM	#5
wgknestrick Scooby Specialist Member#: 32576 Join Date: Feb 2003 Location: Allentown, PA Vehicle: 04 STI Roller Barrel ITBS	Not quite. While yes that is in a gauge format, knock is not something well represented by an analog dial. Unless it flashes and beeps past a certain level, it is mostly novelty to me. I want a simple LED linear meter in a gauge that beeps and flashes past a user set point. I don't want to see or hear anything out of that thing unless there is trouble. Try monitoring that gauge when at WOT. How do you discern between 40 and 60 (what is it in %?) You are in knock trouble for a split second.

05-10-2005, 10:01 PM	#7
Jaxx NASIOC Supporter Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Boise,Idaho,USA Vehicle: The 93 Imp W/EJ20K flat black	j&s is probbly the best

05-11-2005, 06:03 AM	#9
rich728 Scooby Specialist Member#: 40328 Join Date: Jul 2003 Chapter/Region: South East Location: MiamiFL Pastelito Racing/SFSOC Vehicle: 2004 WRX STi BSP #728	now that is a a really slick install. is that knocklink? i hope you made a how to guide

05-11-2005, 10:44 AM	#10
xcntrk75 Scooby Specialist Member#: 60224 Join Date: Apr 2004 Chapter/Region: MAIC Location: NOVA Vehicle: 2008 FXT Sports 2.5 Dark Grey Metallic	How are you guys interfacing an audio mechanism (buzzer) with your knock monitors? I imagine the LED solution would be hard to see in some daylight circumstances. Not to mention while under heavy throttle with both eyes glued to the road…

05-11-2005, 12:26 PM	#11
fogdor Scooby Specialist Member#: 45726 Join Date: Oct 2003 Vehicle: 2007 Mazdaspeed3 Cosmic Blue	I've been kicking around the idea of building my own "knock sensor" for a few months. Basically you have a microphone, a filter, and an led bar-graph display. How hard could it be?

06-26-2005, 08:45 AM	#12
Playsatan Scooby Newbie Member#: 89943 Join Date: Jun 2005 Location: Glasgow, Scotland Vehicle: 1999 STI5 Type R Mica Black	This is a knocklink that I modified I'm not any good with wiring so the entire box it tucked into the dash. I just took the cover off, used the holes in it as a template and drilled through to allow the leds to drop through. 30 minute job max. Keeps it in your line of site as well although I was tempted to do it through the top of the dash and turn it into a HUD.

06-26-2005, 05:16 PM	#13
Jon [in CT] * Banned * Member#: 2992 Join Date: Nov 2000 Chapter/Region: NESIC Location: Connecticut, USA Vehicle: 02 WRX Sedan Silver	A $50 product called "Knocksense" seems to be popular within the Volvo community. See http://www.viatrack.ca for what skimpy details exist about it.

06-30-2005, 12:38 PM	#16
Unabomber Big Ron Moderator Member#: 18062 Join Date: Apr 2002 Chapter/Region: MAIC Location: I can save you a ton of cash Vehicle: on car parts so PM me b4 j00 buy	Links to some other detonation monitoring options: http://www.jandssafeguard.com/ KnockLink Casper knock sensor Snap-On Electronic Ear Part Number: YA6500 AKA det cans

07-03-2005, 01:39 AM	#17
bboy Scooby Specialist Member#: 56468 Join Date: Mar 2004 Chapter/Region: NWIC Location: Seattle, WA Vehicle: 04 Improved STI Dirty White	I've made mine own knock listening device. $20 Bosch knock sensor (used at a Volvo junk yard, excuse me, salvage yard) $10 cable with aligator clips and a minijack audio plug from Radio Shack Plug the microphone (knock sensor) right into the computer. I filter out all frequencys except 5-10 kHz with equalizer in sound software (I use a Mac specific program Final Vinyl but I've used other effectively--30 band equalizer, but it's overkill). Sound is processed and played through on the computer speakers or via head phones. Det sounds are very distinct as everyone knows. It's just for tuning, but it works as well as TXS Tuner.

07-03-2005, 01:46 AM	#18
SleepinRex Scooby Specialist Member#: 12449 Join Date: Nov 2001 Chapter/Region: SCIC Location: socal	thanks for the link unabomber. Anyone happen to know any good vendors selling knocklinks. Found a coupel that were out of business or overseas.

07-04-2005, 12:57 PM	#19
Tgui Scooby Specialist Member#: 44771 Join Date: Oct 2003	Sort of on topic... where the heck are you people mounting your knock sensors? I tore my intercooler off looking for some great place to mount mine, but no luck.

08-13-2005, 02:34 PM	#22
singletrack Scooby Specialist Member#: 42440 Join Date: Aug 2003 Location: Pittsburgh, PA Vehicle: 04 Impreza WRX STi Platinum Silver	I just wanted to revive this thread to show the location of the knock sensor I installed on my STi. This is the bosch sensor commonly sold with the knocklink. It's installed at the same angle as the stock sensor which is not visible in the pictures; I'm not sure if it makes a difference really. In order to get the bracket to fit on top of the sensor, you can insert a 1/4" extension into the hole in the bracket and bend it slightly. I can't recall the length, thread, etc of the bolt, but I just pulled the stock one, drove to the parts store, and came back with one that was longer. A quick tip - when replacing the intercooler (assuming you have a TM) use a touch of soap on the outside of the compressor outlet to make sure the rubber boot slides on easy : )

03-09-2007, 02:41 PM	#24
Jaxx NASIOC Supporter Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Boise,Idaho,USA Vehicle: The 93 Imp W/EJ20K flat black	i though i would bump this as its linked in the ecu faq and add an important thing is not mentioned most knock "lights" will only display the knock, the JandS will actually retard advance up to 20 deg /cyl when it senses knock .. this is very useful when tuning with an ecu that has insufficient knock sensing/retard like a powerfc or autronic

03-09-2007, 08:58 PM	#25
IllNastyImpreza Scooby Guru Member#: 36333 Join Date: May 2003 Chapter/Region: NESIC Location: East Kingston NH Vehicle: DIY project: life I need more TIME!	so whats the best one for the money? where can I purcahse them ?