Home Forums Road Racing NEW HORSTMAN AXLE CLUTCH

This topic contains 4 replies, has 3 voices, and was last updated by  Kelly Read 3 weeks, 5 days ago.

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  • #81461

    Kelly Read
    Participant

    I have had a lot of people contacting me on how the testing of the new clutch is going.

    IT IS AWESOME!!!

    We did TRACK testing on it this past weekend and it performed flawlessly. The version we tested with was for low stall engagement like on a Tag motor. We had a 08 Leopard as the motor on a Rocket chassis with a 40mm axle. We started out with 6000 RPM clutch engagement which is the maximum engagement allowed in KART & WKA to see how it held up and performed. Then we started lowing the engagement 1000 RPM at a time down to 3000 RPM. Same results, GREAT!! They have the weights and springs perfect for a tag out of the box.

    Some things I like about it is:

    1) No tinkering with it like some people do with the engine clutch (been there, done that). As an example, spraying the friction hub to gain getting off the line. No worries of burning the linings off especially if you are on the brake and throttle at the same time especially at the starting line like you can on a engine clutch.

    2) Easy to adjust.

    3) I believe the plan is to have it for 1 1/4″ up to 50mm axles.

    4) $$$$$. From my experience, I see paying for this in 1 season, 2 at the most compared to what I have spent on engine clutch parts if pricing is under $1000.00.

    I believe one for other engines (Yamaha, etc) will be tested over the next few weekends.

    If you have questions, give me a shout.

    Kelly Read

    316-218-3645 (C)

    Kelly.read@westarenergy.com

    #82137

    David Moffitt
    Participant

    Great report on the new Horseman axle clutch.  I have long believed that the supplied engine clutches on TAG engines were totally inadequate for road race applications. Happy to hear that Horstman realized the need and stepped up to the plate, and perhaps more importantly, that KART is not “married” to the spec “package” programs that have had unintended consequences.

    Hope it all works out.

    #82965

    Bruce Peck
    Participant

    Any word on testing and general availability of these for typical road race classes?

    #83023

    Bruce Peck
    Participant

    I was able to get info on this.  They’re shooting for having the 1-1/4″ enduro models available in September.

    #83035

    Kelly Read
    Participant

    David,

    It was actually KART & WKA who got behind this.

    Bruce,

    THANKS for posting the above. Been kind of busy especially with 2 kids getting married in the same year!!!LOL

    As for the regular enduro kart clutch, I was told it was great.

    As for availability, the clutch as a whole is currently in production and will be available come September. As for parts like floaters & discs, they are now available. This should help those with the older clutches as the new floaters & discs fit that clutch also.

    As for the clutch for the tag karts we are testing, we will be going to Hallett July 15/16 to test it there as this is a low gear ratio track and probably the lowest gearing any of us run anywhere I’m guessing (16-84 on a stock Leopard). I’m interested in seeing if the springs we currently have for when we ran a 16-76 ratio works for Hallett. I will have a softer spring just in case.

    Keep you posted

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