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:
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.
IMPORTANT!
I need know the approximate cylinder bore when ordering
(piston diameter). 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.
Knocksense standalone than order it
with a single knock sensor connector - $55
Knocksense unit with "Y" adapter signal cable
$60
PayPal is preferred
Everything except the knock sensor itself is
included.
OPTIONS
Blue LED
- Add $3
Amber LED -Add $1
White LED - Add$5
Knock sensor Used, tested good - Add $25
(Bosch, Siemens) NOT ALWAYS IN STOCK
Extra standard signal cable for dual
sensors = Add $10 (comes prewired with two pin Bosch connector)
All
prices are in $US
KnocksenseMS for Megasquirt and other EMS
Installation docs for all versions of MS.
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 $70USD plus S&H
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
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 $10
(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.
IMPORTANT!
I need know the approximate
cylinder bore when ordering (piston diameter). 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
S&H - $10 to
US, $14to Canada, $16 overseas
With tracking - $18 to US and
Canada
Volvo Performance Enhancements
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.
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
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
