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  1. #1

    Supercharger upgrade Questions

    I have a 2005 sea doo rxp with riva stage 3 kit and wanted to upgrade superchargers. I was thinking between ET 68-140 or riva xxx. What supercharger will give me better performance and which would be more reliable? Thanks


  2. #2
    AtoMIC_OraNGE greenbullet's Avatar
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    both are about the same.. but much have supporting mods to be able to run either one of these chargers

  3. #3
    I think I have everything to support either supercharger except a rrfpr which I will add

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    cjo632racing's Avatar
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    Do you have the 08 oiler upgrade? If not you better put that on before the charger goes on!!!!

  5. #5
    I do not have the 08 oil upgrade but when I called engine tech they told me as long as I have the riva stage 3 I would be fine but i just need to add a rrfpr. He also told me if my charger now has lastedover 20 hours that I should not have any problems.

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    Moderator Snoman's Avatar
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    Quote Originally Posted by Gtownwine View Post
    I think I have everything to support either supercharger except a rrfpr which I will add

    May i ask what you consider everything???Youll need 48/50 lbs injectors(And not the Riva Delphis 50s as they lock up under higher fuel pressures),AFR gauge,RRFPR or fuel controller...

  8. #7
    I have everything that came with the riva stage 3. Injectors, race ecu, intercooler, etc. I will change to Bosch injectors as I have been reading the riva ones are not so good. I do not have a rrfpr or afr

    http://www.rivayamaha.com/pwc_pkgs/rs_rpm_rxp_3.asp

  9. #8
    I have everything that came with the riva stage 3. Injectors, race ecu, intercooler, etc. I will change to Bosch injectors as I have been reading the riva ones are not so good. I do not have a rrfpr or afr

    http://www.rivayamaha.com/pwc_pkgs/rs_rpm_rxp_3.asp

  10. #9
    AtoMIC_OraNGE greenbullet's Avatar
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    you will need the following to support those two chargers..
    - RRFPR
    -afr monitoring
    -a begi regulator or a fuel controller.. you will be pig pig rich at idle without and could cause damage if prolong left it like this
    -48 injectors
    - and alot of patients to setup and dial in those chargers...

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  12. #10
    cjo632racing's Avatar
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    Quote Originally Posted by Gtownwine View Post
    I do not have the 08 oil upgrade but when I called engine tech they told me as long as I have the riva stage 3 I would be fine but i just need to add a rrfpr. He also told me if my charger now has lastedover 20 hours that I should not have any problems.
    Of course they would, they want to sell a supercharger. I had a S3, the 140 is alot more charger..

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