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Thread: Question on the VMax pumpkin swap

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    Default Question on the VMax pumpkin swap

    I remember a thread about cruise not working right for some after the pumpkin swap, maybe Freebird being one of them? After 2 hours going crosseyed looking for it I give up. For those who have done it are you seeing cruise problems? I am really thinking of ordering one now that we're pulling a trailer, but I use CC most of the time I'm on the slabs or long highways and don't want to lose it. With both shoulders giving problems setting the cruise and riding one handed is a must.
    Faded Blue is the fastest.

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    Default Re: Question on the VMax pumpkin swap

    My cruise would only work in 5th gear after my changes. But I don't know if it was the Vmax rear or the Dyna Ignition that caused it. It never failed to work though, it just only worked in 5th gear.

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    Default Re: Question on the VMax pumpkin swap

    Quote Originally Posted by Freebird View Post
    My cruise would only work in 5th gear after my changes. But I don't know if it was the Vmax rear or the Dyna Ignition that caused it. It never failed to work though, it just only worked in 5th gear.
    Thanks Don. I'm still running OEM ignition so hopefully no issues there. Wiz talked to me about the swap at WNY and I've been thinking about it since.
    Faded Blue is the fastest.

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    Default Re: Question on the VMax pumpkin swap

    I am a big fan of the change, especially if you are pulling a trailer. I don't think it will be an issue. Most of the time you are on those long highways, you are in 5th gear anyway.

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    Default Re: Question on the VMax pumpkin swap

    My cruise only works in 5th gear also, but I wouldn't change back. Much better pulling a trailer and really like it riding the twisties.

    Ron

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    Default Re: Question on the VMax pumpkin swap

    I went to a COPs and Ignitek setup, Cruise still works but I still have the original pumpkin. I was not aware of any speed sensor or anything back there. Doesnt the cruise read through the speedo on these? I've read that worn lever handle pins can cause cruise to fail by activating the cancel switches.

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    Default Re: Question on the VMax pumpkin swap

    Quote Originally Posted by CaseyJ955 View Post
    I went to a COPs and Ignitek setup, Cruise still works but I still have the original pumpkin. I was not aware of any speed sensor or anything back there. Doesnt the cruise read through the speedo on these? I've read that worn lever handle pins can cause cruise to fail by activating the cancel switches.
    The speedometer sensor is in the pumpkin. With only neutral and 5th gear sensors my understanding is the TCI "computes" gear by matching RPMs with speed. With the lower gearing running higher revs for the speed it computes 3rd instead of 4th. That's the explanation I've found online and since it's on the internet it must be true and that's the story I'm sticking to. If that's true I wonder if you could trick it with a speedo healer or DRD. I run the DRD to fix the true speed and probably won't test the theory. If it did work it would change the 80 mph cruise limit.
    Faded Blue is the fastest.

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    Default Re: Question on the VMax pumpkin swap

    I had the speedo healer on mine. Still only worked in 5th gear.

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    Default Re: Question on the VMax pumpkin swap

    Quote Originally Posted by Freebird View Post
    I had the speedo healer on mine. Still only worked in 5th gear.
    In my head (which is a scary place to be) if the healer was programmed to throw the speedometer off to a faster reading you might be able to get 4th gear CC back. Just another of my crazy ideas. It wouldn't be worth it to me but I'm always thinking out of the box. I bought the DRD to get the Speedo right, it always bugged me being off.
    Faded Blue is the fastest.

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