14 Comments

  1. Richard Henderson
    15th April 2020 @ 8:44 am

    Excellent video. Have you considered the impact of internal reflector plates to stop air disappearing out past the exhaust stub? By total coincidence I’ve been doing similar mods to my cowlings this week.

    Also, what about the cooling effect of the transfers? I wonder how significant it is? There’s about 1000lpm of cool mixture passing through them at 5000rpm on a 200. Seems important?

    Looking forward to the book.

  2. lee maddocks
    15th April 2020 @ 10:09 am

    congratulations for getting in the first joey deacon reference i have heard for 20 years lol

    • iggy-grainger
      15th April 2020 @ 11:37 am

      I did a bring & buy sale for Joey back in the day, he was and still is a legend (despite being dead, unfortunately).

      • Sticky Round
        16th April 2020 @ 12:35 am

        Did anyone buy him or did you have to give him back to Blue Peter?

        • iggy-grainger
          16th April 2020 @ 11:22 am

          I now own shares in an empty bungalow I believe.

        • hairyjim
          16th April 2020 @ 2:59 pm

          Hello sticky. Its Jim, cavmans brother. Nice welding mate. Lol. Did you test that cowling using thermometers and Flow meters. Also if I’m assuming correctly, Your using the modified cowling with the fan directing it’s flow as normal. Have you tried redirecting any flow from the fan to another part directly on the cowling.. I’m not totally familiar with the lambo cowling but can’t be much different from my mums old vespa system. Is there any provision on the fan to use a suck system in conjunction with the blow to help cooling in the hot spots. Forgive the rambling but I’ve given up the recreationals now and my head works different. Jim..

  3. ULC Shane
    15th April 2020 @ 11:32 am

    It’s all interesting stuff and I’d bought a modified fan n head cowling made by ex racer Steve Richards for Cool Runnings it works 20*c less so I’m chuffed

  4. tony172
    15th April 2020 @ 10:25 pm

    The steel weasel off YouTube has put some good thought and ideas into lambretta cooling on his YouTube channel, also selling his grp cowlings for a while too.
    Flywheel and head cowl.
    Great work boys ill do having a go on me cutdown

  5. Stephen
    16th April 2020 @ 9:44 am

    You know when you are from a certain moment in time.
    When…
    PC did not exist and Joey Deacon was a benchmark insult in the playground and workplace.

    Well done reviving it and squeezing it into a feature write up. Perfect For any quivering snowflakes who would melt and be offended by use of Mr Deacons condition being used to describe your inability to weld, as they will be too young to know him. The rest of us who grew up with “Love thy neighbour” and “Till death us do part” can laugh along in secret.

    On a more important not. Book looks good. I’ll be getting one.
    Well done you, I pissed myself and bought a book.

  6. hairyjim
    16th April 2020 @ 3:00 pm

    Hello sticky. Its Jim, cavmans brother. Nice welding mate. Lol. Did you test that cowling using thermometers and Flow meters. Also if I’m assuming correctly, Your using the modified cowling with the fan directing it’s flow as normal. Have you tried redirecting any flow from the fan to another part directly on the cowling.. I’m not totally familiar with the lambo cowling but can’t be much different from my mums old vespa system. Is there any provision on the fan to use a suck system in conjunction with the blow to help cooling in the hot spots. Forgive the rambling but I’ve given up the recreationals now and my head works different. Jim..

  7. Toby TheEbt
    16th April 2020 @ 3:42 pm

    Sticky. U make a lovely video and everyones a critic!!!!
    I may be oversimplifying but instead of cutting out a hole n fabing a vent. Could u cut a virtical slot to left then fold the cowl back like a Louvre then weld in a triangle section instead?
    Just a thought….

    • hairyjim
      20th April 2020 @ 11:02 am

      Hi. I think that’s a pretty good idea to be honest. At the end of the day cooling a scoot is about airflow and efficiency of the air to get right in to the heat and grab it and push it out.ive been having a few thoughts about laterly but I’m not really up on it with regards to the effects of the heat relevant to hp, distortion, effective internal combustion cooling etc. Ide be happy to have a chin wag with anyone who’s willing to listen to a few ramblings of mine regarding the heat absorbtion and expulsion of said air around the head and cylinder.has anyone thought of a water cooled cowl.maybe a partial one just for the head with air directed to it from the fan or used air from the cylinder To balance the overall cylinder heat coverage. Has anyone done temperature readings at all the points of interest around the barrel and head and modified air flow to any degree to balance the heat as required. Its not just about stopping the engine from a seizing. Any way.. My ramble is over. Anyone wanna have a chin wag bout it..????

  8. MikeCollum
    28th April 2020 @ 11:48 am

    As usual from Sticky, informative and well researched. As an aside, I was living in Yeovil in 1997 and trashed the nuts off the TS1 all the way to Kettering rally, and then all the way back. I then discovered that my head cowling had been disintegrating and was little more than a ‘scull cap’ at the top of the cylinder head.
    Despite that and the hard thrashing, the scooter suffered no ill effects. I guess what that shows is that every engine is different, and a different kit may well have over heated…not that you could get your hands on so many different kits back then. It probably also shows that I was very lucky.

  9. Paul Watson
    2nd May 2020 @ 3:30 pm

    Have you thought of ducting into the cylinder head, for when the scooters ridden, a ram air affect tubed under the scooter to the fron.that is free air.

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