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  1. #1
    Impulses's Avatar
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    Exclamation Torque control with logger vtech

    Is there any way to measure torque with Vtech datalogger?


  2. #2
    Site Admin Green Hulk's Avatar
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    No, you would need an engine dyno for that

    For a description of what parameters the V-Tech logger will log as well as some video's explaining the system please click here
    http://www.4-tecperformance.com/inde...oducts_id=2174

  3. #3
    Impulses's Avatar
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    I think it is a fundamental parameter to not break the clutch pwc.
    I understand that I need to test.

  4. #4
    Impulses's Avatar
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    but it is very risky to have high torque : -?

  5. #5
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by Impulses View Post
    I think it is a fundamental parameter to not break the clutch pwc.
    I understand that I need to test.
    Are you talking about the slip setting on the supercharger clutch?

    This must be checked with a torque wrench.
    Best way is to remove the supercharger from the ski. Use a gear holding tool to hold the gear still. See tool here
    http://www.4-tecperformance.com/inde...oducts_id=1127

    Then use an accurate dial type or digital torque wrench and turn the impeller nut counter clockwise to measure the point at which the clutch slips.

    Ideally you want 1 ft lb slip moment for every 1 psi boost anticipated. This means, if your supercharger produces 16 psi boost pressure then you want 16 ft lbs slip moment.
    I like to set the initial slip higher because the washers will settle in and have a lower reading after some time. So in this case, set slip at 18 ft lbs and after a couple hours of riding the ski the slip will settle around 16 ft lbs.

    Hope that helps!

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