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  1. General Chit Chat

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    2. Welcome and News

      Let us know who you are and give us a link to your site. No linkbacks required i just like to be nosy :)

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    3. General Discussions on anything

      Chit chat about anything for want

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    4. Members Cars and Project threads

      Post pics of your car here, also make a thread and show us how you are doing with upgrades and repairs etc!

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    5. Ranting Arena

      Anything go's in here so please feel free to rant and rave about anything within reason....
      Parental Advisory maybe required.

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    6. Alternative Hobbies

      Board for non-car related hobbies, sports etc.

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    7. Events and Motorsports

      Going somewhere interesting, want to meet up with anyone. Shows, trackdays etc.

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    8. Forum Queries and Suggestions

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      Input welcomed from members.

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  2. Technical discussion boards

    1. General Technical Discussions

      Can't work out where to post? Try here.
      Talk about anything technical, any subject.

      8,553
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    2. General Engineering / Workshop Discussions

      Engineering or Workshop Questions, tools etc.

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    3. Engine and Ancillary talk

      Talk about anything related to engines or engine ancillaries or engine swaps.

      8,375
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    4. Carburettors

      Ask any resident gurus about ANY carb questions.
      Any car, any fitment, don't be shy.

      2,846
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    5. 519
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    6. Ignition, ECU and Fuel Injection

      Distributers, Megajolt, aftermarket injection etc

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    7. 490
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    8. Drivetrain

      Gearboxes, Diffs, Propshafts and the likes.

      941
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    9. Suspension, Handling, Tyres and Brakes

      Want your car to handle, corner and stop?

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    10. Interchangeable Parts

      Post any interchangeable parts here.

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    11. General TrackDay and Race Prep

      Discuss GENERAL track prep here

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    12. Technical Articles & Reviews

      My personal area.
      You may submit your own tech articles.
      Email them to me!

      82
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    13. Triumph Small Chassis Archive

      The best posts from the small chassis section from the past.
      Read Only

      8,632
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  3. General Car Discussions

    1. Triumph Spitfire / GT6 / Herald

      Talk about your small chassis triumph

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    2. All Other Triumphs

      TR2-8, Saloons, Dolomites.
      Standard, Fast Road, Race.

      836
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    3. General BMC car chat

      Standard, Fast Road, Race. All welcome.

      170
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    4. K Series Specials

      Rover K Series powered road rockets

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    5. Lotus, Caterham, Marcos, Morgan etc

      Chat about any of the main "small company" road rockets. ALL cars welcomed.

      187
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    6. Other Marques

      Other cars that aren't Triumphs?!

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    7. Modern Cars

      Talk about your modern hack...

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  4. Trading Area

    1. WANTED OR SALE. Cars, Parts and Spares

      List any Cars, Parts and Spares for sale or wanted.
      FOR FREE (unless trade). READ the RULES first.

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    2. Links to Ebay or Anywhere

      See something cool for sale?
      List it here. Also link your Ebay items.

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    3. 25
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  • Recent Posts

    • Hi, I will use Nicks AFR's and let it tune. I have 32 points and therefore much higher resolution than Nicks, should help the tune better? 200 RPM sites at my end should make self tuning easier.. Fitted the gauge/controller tonight and at lunch-time Friday, paid a garage a tenner to swap the lambda's. With no sensor fitted the gauge shows 14.8 AFR. Sensor fitted and hanging in free air shows +20 AFR..  Surprised no sensor connector gauge showed 14.7.. Never checked the output to ECU, but hope this was 20+ AFR?   Cheers, Iain.    
    • Hi,  The K3 has provision for Open-Loop, Closed-loop & Adaptive. I will set 0 to 1K RPM at 0 load site for closed loop @ 13.7 & everywhere else as adaptive. 15 AFR at zero load and 12.5 @ WOT interpolated between. Hopefully a few hours driving will populate the "correct" fuelling numbers in the cells. Ignition timing is another matter! ****************** Just received an update on this thread. Will post this first! ************ Cheers, Iain.
    • Not yet, Steve!    Still have to develop the testing rig! As my cousins will say, "Softly, softly, catchee Great Ape" John
    • What becomes even more interesting is when you start plotting the valve lift against actual crankshaft degrees.  Plotting the results of different cams against each other would be really interesting........ Nick
    • 15.2 will be too lean for a 2 valve Triumph engine - especially a 2.5 with more limited squish.  You'll likely need to be richer than 14.7:1 to get a decent idle.  More like 13 - 13.5 typically - but experiment - it wants whatever it wants. elsewhere, this is the target table I use.  The 600/900 rpm areas are too lean but I only allow it to tune from 1200 rpm upwards anyway.
    • Good report John, very clear and concise! have you started ‘testing’ my slipped damper yet? steve
    • Link to website of new motorsport club for those interested in competing in 'club' racing www.cmmotorsportclub.com Pete Richards
    • Only because I would like to know, but are we sure the driven end length doesn't change? although it is roughly curved, does that curve actually compensate, or over compensate for the tip moving in towards the pedestals as the rocker rotates, anyone care to measure? Alan
    • Right, link to here inserted on the Technical Articles thread. Looking forward to some criticism please! John
    • The rocker ratio is the ratio of the drive end to the driven end. the effective length of the driven end doesn't change as it slides across the valve stem but the drive lenght gets shorter as it moves through its arch and gets closer to the center the rocker shaft
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