GOT KNOCK?


So you like your boost setting but are concerned about the potential of damage?
Can you hear your engine over the 3" exhaust with the stereo turned up?
Do you carry or tow heavy loads?
Do you end up in places where less than premium gas that your car requires is unavailable?

If you just spent a fortune having your engine rebuilt or do not wish to spend a fortune having your engine rebuilt
than perhaps you'd be interested in these inexpensive engine knock monitors:

Knocksense < More info here   For Megasquirt KnocksenseMS scroll down


Knocksense unit and a knock sensor (above)

   There are two ways to install Knocksense
Standalone- The knock sensor connects directly to Knocksense, independently of existing ECU and ignition control. When ordering state that it is for a standalone application so that we can supply a single ended signal cable.
Dual Use- This setup connects Knocksense in parallel with the original knock sensor transducer that is already in use. For Volvo and Porsche A "Y" adapter is used to tap into the knock sensor signal line. Please state for which car are you ordering because the grounding schemes are different. For other cars Write to us  Please mention word Knock in the subject line.
The electronics sits in a tiny box under the dash. It contains an active filter that amplifies the knock signal and a comparator circuit that drives an LED which flashes on every knock event. The flash intensity is related to the knock intensity. The LED is separate from the box so that it can be mounted anywhere. The best place for it is just below the pillar mounted boost gauge. All Wiring is to the poke in terminal block on the Knocksense unit. There is no soldering necessary. The internal threshold pot can be set so that it triggers on the desired level of the knock signal.


You can order the Knocksense unit with "Y" adapter signal cable end from us for $55 plus S&H ($10 to US, $14 overseas, $10 to Canada).  
If you inted to use Knocksense as a standalone than order it with a single connector and pay $50

PayPal is preferred
Everything except the knock sensor itself is included.

OPTIONS
Teflon Signal Cable for high temperature installations - Add $18
Blue LED - Add $3
Amber LED  -Add $1
White LED - Add$5
Knock sensor Used, tested good - Add $25  (Bosch, Siemens)

Extra standard signal cable for dual sensors = Add $8  (comes prewired with two pin Bosch connector)
Extra  Teflon signal cable for dual sensors = Add $20  (comes prewired with two pin Bosch connector)

All prices are in $US

KnocksenseMS for Megasquirt and other EMS
 
  Installation docs for various versions of MS.


Knocksense unit for Megasquirt (above)

  
KnocksenseMS contains the necessary logic interface to signal to Megasquirt or other EMS unit that a knock event has occurred.  The knock indicating LED is included just like in original Knocksense. 

 If you do not have Megasquirt yet,  KnocksenseMS can be used as indicate only unit. The output to control the timing can be connected to Megasquirt at a later date.  In the mean time you still have  LED warning.

You can order the KnocksenseMS kit from us for $65USD plus S&H ($10 to US, $14 overseas, $10 to Canada). $24 Expresspost - US & Canada
The knock sensor shielded cable (9') comes with a two pin Bosch connector wired to one end.
Red LED comes mounted in a bezel and wired to a length of twisted pair.

OPTIONS
Teflon Signal Cable for high temperature installations - Add $18
Blue LED - Add $3
Amber LED Add $1
White LED - Add $5
Knock sensor Used, tested good - Add $25 
(Bosch, Siemens) You can buy this sensor seperately at any time.

Extra standard signal cable for dual sensors = Add $8  (comes prewired with two pin Bosch connector)
Extra  Teflon signal cable for dual sensors = Add $18  (comes prewired with two pin Bosch connector)

ORDERING 

For orders and questions contacts us by THIS >Write to us < email link.
Please mention word Knock in the subject line.  If for some reason you do not get a response in 24 hours (usually it is less) please contact us via this alternate address: bmohar@gmail com

  Let us know the board and software source, be it B&G
Megasquirt or Megasquirt&Spark Extra that you will be using.  There is a
slight variation in supplied documentation.

 Also I need know the approximate cylinder bore when ordering.  We tune each
KnocksenseMS filter so that it better matches the engine. This need not be
exact because the filter is deliberately broad in order account for the
variance in knock frequency due to dynamic changes in operating conditions.

             My Paypal is borism@sympatico.ca


Volvo Performance Enhancements

If Bricks Could Fly

Here is some info on my Volvo 740T modification project collection of pictures of my first head porting effort.

These are the wheel dyno results Note that along with the head, the cam has been changed from VX to V15.

I have since converted to Megasquirt&Spark and made other omprovements. Here is my best pull: 18lb


 Other work


Useful Links


Papers on engine knock
Detonation and Preignition (There is a difference)
NACA Report 855 (This was not discovered yesterday)
Detonation, Knock, and Pre-Ignition 101
Wrenching with Rob By Dr. Robin Tuluie, Ph.D.

Volvo Forums:
Turbobricks
Brickboard

MEGASQUIRT

Roll your own Do-It-Yourself universal programmable electronic
fuel injection controller for spark ignition internal combustion engines?
Try Megasquirt
DIYAutoTune - Megasquirt Builder
Efi4Tuning - Megasquirt Builder
ExtraEFI - Megasquirt Builder
RS Autosport - Megasquirt Builder
MiataRoadster - MegaSquirt kits for Miatas 949Racing - MegaSquirt PnP Miata
Colin's site

Fancy a Cobra kit with Megasquirt&Spark-extra for brains?
See this labor of love from Philip Ringwood

 Date last updated: February 2, 2014

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