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  1. #1
    chris7613's Avatar
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    05 RXT with X-charger

    We got my buddys 05 RXT in the water today after installing the X-charger, RRRFPR, Riva air intake and 15/22r impeller. It has a riva grate. everything else is stock. Water 60, air 72. Driver 260lbs. Water = very small chop.

    I have a 04 RXP with riva grate and intake. Driver 200lbs I just added the Riva air intake. After this mod I can cavitate out of the hole. Before the mod it would not. Looks like a new impleller and charger soon for me.

    The 05 RXT will just pull me out of the hole through mid range then I can just creep by on the top end.


    No GPS numbers yet. I think the RXT got 4 to 5 mph with this upgrade and pulls better than a stock RXP. This RXT could not stay with my RXP before these mods.

    I have 2 concerns
    1. The RXT was turning 7800 with blips of 7850. I think we should see better than this. What do you think?
    2. When I installed the new impeller I tightened the prop with a 18'' handle just tight. the impleer spins fine with finger but will not spin with out help. Did I over tighten the impleller?

    Thanks for you input.


    Chris


  2. #2
    MPower's Avatar
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    Still running the stock intercooler? You have too much prop.

  3. #3
    chris7613's Avatar
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    Thats what I was thinking....

  4. #4
    Sick Puppy's Avatar
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    Thinking of doing the same mods on my RXT would love to hear your GPS numbers

  5. #5
    agibbs's Avatar
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    Quote Originally Posted by chris7613 View Post
    We got my buddys 05 RXT in the water today after installing the X-charger, RRRFPR, Riva air intake and 15/22r impeller. It has a riva grate. everything else is stock. Water 60, air 72. Driver 260lbs. Water = very small chop.

    I have a 04 RXP with riva grate and intake. Driver 200lbs I just added the Riva air intake. After this mod I can cavitate out of the hole. Before the mod it would not. Looks like a new impleller and charger soon for me.

    The 05 RXT will just pull me out of the hole through mid range then I can just creep by on the top end.


    No GPS numbers yet. I think the RXT got 4 to 5 mph with this upgrade and pulls better than a stock RXP. This RXT could not stay with my RXP before these mods.

    I have 2 concerns
    1. The RXT was turning 7800 with blips of 7850. I think we should see better than this. What do you think?
    2. When I installed the new impeller I tightened the prop with a 18'' handle just tight. the impleer spins fine with finger but will not spin with out help. Did I over tighten the impleller?

    Thanks for you input.


    Chris
    Too much prop, I'm pushing a 15/20 with the same mods plus and intercooler and a 81mm nozzle ring. Those superchargers really pull though. Just a thought, it might be a good idea to pull the s/c and send it to Jerry for a once over. I know there has been one problem on the forum with the s/c shaft having too much play, causing touchdown. I just had a X s/c failure today, not sure if it was touchdown or bearings or something else, but the s/c only had 6 hours on it. Not trying to start a witch hunt against the X charger or cause any worries, I think it is an amazing performance modification and that these problems are a very small minority. I just experienced what it was like to be "ski-less" on a beautiful day, watching all the other pwcs out having fun and I would wish it on no one.

  6. #6
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by MPower View Post
    Still running the stock intercooler? You have too much prop.
    +1

  7. #7
    chris7613's Avatar
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    Thanks agibbs.
    I think it's to much prop too. Jerry recommended it. I will look into a inercooler. or step down to a 15/20.

    chris

  8. #8
    t_hoang02's Avatar
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    +1 on having too much prop... you mite want to try a 13/19 which is a stg II for RXT... but if you looking to sell or trade that 15/22R let me know... it would look mighty fine in my X

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