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  1. #1
    Site Admin Green Hulk's Avatar
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    R&D releases clutch saver billet driveline coupler

    http://www.4-tecperformance.com/inde...oducts_id=1602

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    R&D Performance is proud to announce the release of the new SHO/FZR Pro Comp. Clutch Saver Driveline Couplers. The new clutch saver design increases the rotational mass of the 1800cc engine. The engineers at R&D added approximately 1.5 pounds of weight to the driveline couplers to increase the rotational mass of the engine. The added mass dampens the moment of inertia and absorbs shock that the supercharger clutch and pump impeller receive each time the engine accelerates. The result is smoother engine performance with added clutch life and reduced prop shock and cavitation. These precision couplers are made from billet aircraft aluminum and CNC machined to exact tolerance.


  2. #2
    Whats that whistling noise? jtskier11's Avatar
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    These pretty simple to swap?

  3. #3
    hitman's Avatar
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    Quote Originally Posted by jtskier11 View Post
    These pretty simple to swap?
    Not really, but well worth it from what I hear. I will probably be running one. I believe it requires pulling the motor.

  4. #4
    Whats that whistling noise? jtskier11's Avatar
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    Quote Originally Posted by hitman View Post
    Not really, but well worth it from what I hear. I will probably be running one. I believe it requires pulling the motor.
    Welp. Scratch those off my list.

  5. #5
    hitman's Avatar
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    Oh don't be a wuss. lol. It's not that bad to pull the motor. I had it out and halfway back in in the same day.

  6. #6
    SHOBiz's Avatar
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    Quote Originally Posted by hitman View Post
    Not really, but well worth it from what I hear. I will probably be running one. I believe it requires pulling the motor.
    +1
    Getting the coupler off the crank can cause a coronary and a good amount of cussing and if you don't take the motor out you might (slight might) be able to move the motor forward enough, but I doubt it. I've tried that a few times. If the pump happens to be out it may just be easier to remove the drive shaft and the electrical box and panel. All in all just pulling the motor and putting it back in is not that bad and could be done in a couple of hours tops.
    Tip - either get the oem coupler tool or one R&D or Riva provide. The last two are cheaper I think. You will also need a way to hold the crank from turning (there is an oem tool)

  7. #7
    Pistonwash's Avatar
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    The technology is'nt new, we did this years ago to reduce the "free spin" of the motor when exiting of the water. If the GPR guys can remember the fluid dampner's we used to help keep the R's down when you hit a wave and come unhooked or the vibration in relation to our carbs spewing fuel at idle..any amount of weight on the driveline will help reduce the excessive spin/vibration from rotating mass of the driveline. The old Sea Doo's used to have a huge 3-4 pound piece right behind the crank..I forgot what it was called but it help dampen the vibraton of an accelerating Doo.

    They work...this could help tremendously on the FZ's, I was trying to find a fluid dampner just in case, because of this very worry I had on an FZR. There is a heck of a lot R's and vibration from the dig..and no this does not stop the accel times when in use.

    I am glad R&D is on the ball..they come up with good stuff.

  8. #8
    Wouldn't adding weight to the prop accomplish the same thing? Seems a bit easier to add weight and balance the prop (s) than to pull motor.

  9. #9
    hitman's Avatar
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    Quote Originally Posted by wb1205 View Post
    Wouldn't adding weight to the prop accomplish the same thing? Seems a bit easier to add weight and balance the prop (s) than to pull motor.
    That's a lot of weight to try and add to a prop.

  10. #10
    SHOBiz's Avatar
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    Quote Originally Posted by hitman View Post
    That's a lot of weight to try and add to a prop.


    Lead bearings outta do it

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