John Murray's latest activity

  • John Murray
    John Murray replied to the thread Cb450/500t track bike.
    14v - 16v can give more spark energy with an inductive ignition, but as mentioned before inductive isn't the best choice if battery life...
  • John Murray
    John Murray replied to the thread Cb450/500t track bike.
    Interesting thread. The secret to getting good battery life out of a total loss system is to use a CD ignition rather than inductive...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    I've seen some engines using variations of the variable length chamber - mainly karts and outboards. Which kinda makes sense with...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    Alex demonstrates how to launch. Bill is smiling and gracious. You're a lucky man, Pat.
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    You gotta let the Busa guys win one occasionally, it's good for their self-esteem..
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    I think I'm almost as thrilled as you are with the performance Pat :D I'm sure there's more in it, enough to get you well into the...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    Good to see the clutch held up. I wouldn't worry too much about the grey sludge, it's normal for an all-steel clutch and doesn't seem to...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    Don't be surprised if you find it wants more jet at the track than it does on the dyno.
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    Some good numbers there - I'd better start work on the 2021 NFI Racing T-shirt design...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    No, the BMW is irrelevant to the N/A Bul engine.
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    Teazer said this earlier: Bill is correct that lambda results can be misleading. As John points out, give the motor what it wants for...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    No, I use Shell M with methanol and also with gas. I was using an ester with the air cooled engine on gas but had piston scuffing issues...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    https://www.eshifterkart.com/Elf-HTX-909-Kart-Racing-Oil-1-ltr-HTX909.htm https://www.accelerationkarting.com/ElfHTX909Oil There may be...
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    Not too bad here, only 34C. My son was working in Cobar that day where it hit 47C.
  • John Murray
    John Murray replied to the thread Texas Two Step Taco.
    I dunno Teaz, I live in Orange NSW where the winters are long and frosty and sometimes snowy. Overnight temps below freezing aren't...
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