Graham Hutton Posted April 26, 2023 Share Posted April 26, 2023 What plugs do you guys use? I have a 310R with the variable timing and was just going to use the ones from the caterham parts website https://caterhamparts.co.uk/spark-plugs/2376-spark-plug-all-sigma-variants.html Anybody got any recommendations? Also what gap do you set them to?Many thanksGraham Link to comment Share on other sites More sharing options...
StevehS3 Posted April 26, 2023 Share Posted April 26, 2023 These are the ones to use https://caterhamparts.co.uk/spark-plugs/5494-spark-plug-sigma-race-ltr7ix-11.html. They come with the correct gap so no need to adjust. They are iridium so have a very long life. I will change mine at 30,000 miles although that is probably early. Link to comment Share on other sites More sharing options...
Graham Hutton Posted April 26, 2023 Author Share Posted April 26, 2023 Thanks Steve. I notice they are a reasonable amount cheaper elsewhere but they are available in different gap settings. Do you know what the correct gap is? 0.660mm?ThanksGraham Link to comment Share on other sites More sharing options...
Amos91 Posted April 26, 2023 Share Posted April 26, 2023 LTR7IX-11 is the part number which means 1.1mm gap. Link to comment Share on other sites More sharing options...
StevehS3 Posted April 26, 2023 Share Posted April 26, 2023 They should be set from the factory at 1.1mm. They are available here at a reasonable price and a reputable supplier.https://www.opieoils.co.uk/p-64079-ngk-ltr7ix-11-6510-iridium-ix-spark-plug-sparkplug-taper-cut-ground-electrode.aspx Link to comment Share on other sites More sharing options...
Graham Hutton Posted April 27, 2023 Author Share Posted April 27, 2023 thanks everyone :-) Link to comment Share on other sites More sharing options...
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