The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Air Fuel Gauge 02 Sensor Lambda Sensor
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Magnetoman" data-source="post: 109345" data-attributes="member: 2806"><p>If I survive getting the Excel program to work without it sending me there, dealing with the data only will take a few clicks of the mouse (says he, having had more than enough experience with such things to know better...). My hope is I'll be able to automatically generate a scatter plot, with the density of data points graphically showing what the AFR actually looks like as a function of throttle position.</p><p></p><p>Part of my new setup is an Innovate LMA-3 which includes two internal accelerometers.</p><p></p><p>If it were made by an American or Brit I'd be skeptical, but it's made by a Canadian, and he claims it can do it, so it must be true...</p><p></p><p>Two things prompted my interest. The first was when I got my Catalina running a few years ago and I turned off a fast road onto a small, uphill street going too slow in a gear that was too high, the engine started rattling. I quickly grabbed the magneto advance lever and the rattling stopped. The second is my Competition has a 10:1 piston and needs high octane no matter what. I use a super-expensive octane booster that converts pump fuel into 100 octane ((R+M)/2) at a total cost of ~$8/gallon. Anyway, I wondered if a knock sensor might save me money if using it let me determine that less of the octane booster was sufficient (the savings in fuel cost could pay for the knock sensor system in less than 100,000 miles... but, that's not the point).</p><p></p><p>As opposed to the dull thud of an engine, or the rattle of parts falling off, "pinging" has a quite sharp sound so there is reason to believe an appropriate notch filter could isolate the desired undesirable signal from the normal sounds. The control unit has an adjustment to set the cutoff, and my hope is the unit will be sensitive enough to detect knocking before I do, either by hearing it despite the sound-deadening of my helmet, or the more obvious clue that the engine abruptly stopped turning.</p><p></p><p>Interesting question. A bunsen valve represents a very low restriction to the outgoing exhaust, but there could be some effect on the strength of the reflected pulse since the pipe no longer would have an abrupt exit to the outside world. <em>If</em> its presence weakens that pulse, <em>and</em> if there is a lot of valve overlap, it would have an effect on the filling of the cylinder.</p></blockquote><p></p>
[QUOTE="Magnetoman, post: 109345, member: 2806"] If I survive getting the Excel program to work without it sending me there, dealing with the data only will take a few clicks of the mouse (says he, having had more than enough experience with such things to know better...). My hope is I'll be able to automatically generate a scatter plot, with the density of data points graphically showing what the AFR actually looks like as a function of throttle position. Part of my new setup is an Innovate LMA-3 which includes two internal accelerometers. If it were made by an American or Brit I'd be skeptical, but it's made by a Canadian, and he claims it can do it, so it must be true... Two things prompted my interest. The first was when I got my Catalina running a few years ago and I turned off a fast road onto a small, uphill street going too slow in a gear that was too high, the engine started rattling. I quickly grabbed the magneto advance lever and the rattling stopped. The second is my Competition has a 10:1 piston and needs high octane no matter what. I use a super-expensive octane booster that converts pump fuel into 100 octane ((R+M)/2) at a total cost of ~$8/gallon. Anyway, I wondered if a knock sensor might save me money if using it let me determine that less of the octane booster was sufficient (the savings in fuel cost could pay for the knock sensor system in less than 100,000 miles... but, that's not the point). As opposed to the dull thud of an engine, or the rattle of parts falling off, "pinging" has a quite sharp sound so there is reason to believe an appropriate notch filter could isolate the desired undesirable signal from the normal sounds. The control unit has an adjustment to set the cutoff, and my hope is the unit will be sensitive enough to detect knocking before I do, either by hearing it despite the sound-deadening of my helmet, or the more obvious clue that the engine abruptly stopped turning. Interesting question. A bunsen valve represents a very low restriction to the outgoing exhaust, but there could be some effect on the strength of the reflected pulse since the pipe no longer would have an abrupt exit to the outside world. [i]If[/i] its presence weakens that pulse, [i]and[/i] if there is a lot of valve overlap, it would have an effect on the filling of the cylinder. [/QUOTE]
Insert quotes…
Verification
The Series 'A' Rapide was known as the '********' Nightmare?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Air Fuel Gauge 02 Sensor Lambda Sensor
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top