Engine knock detection and indication for all vehicles

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

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 ($8 to US, $12 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 $15
Blue LED - Add $3
Amber LED Add $1
Bosch knock sensor Used, tested good - Add $25

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)

All prices are in $US

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

KnocksenseMS contains the necessary logic interface to signal to Megasquirt or other EMS unit that a knock event has occurred. There is also a separate pseudo analog channel that allows capturing the knock event with a data logger. This signal is up to 5 volts in amplitude for weak signals after which it increases in width with increasing knock intensity. It can be also strapped together to the coolant temperature signal line so that both can be monitored on a single datalog channel. Since the coolant temperature signal is more or less a straight line allowing sharp knock spikes to be superimposed. This sharing is designed so that in no way it affects the coolant temperature value under no knock conditions. 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 ($8 to US, $12 overseas, $10 to Canada). $22 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 $15
Blue LED - Add $3
Amber LED Add $1
Bosch knock sensor Used, tested good - Add $25 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 addres: 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