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  1. #1
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    answer if you can....

    Can anyone answer the question what can i do to my jet rxp 2006 to go to the sea 80mph?
    I read to much post and none of you said exactly what we should do for top speed.
    Sorry for my question but i confused other say that the top speed comes with 3blade other with 4blade so if you please someone tell us the truth what ic what impeller what plate what intercouller what ECU what injectors...............what what what


  2. #2
    prob start with a bigger charger X charger S3 charger or something bigger, 50 lb injectors, 8600 ecu, grate, intake, props 4 blade is usually for higher top speed. some kind of external IC setup. just keep looking around at different speeds like in the speed data base or at some peoples sigs. it lists all the things that they have done to their skis.

  3. #3
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    I have x-charger i have rotax intercouler i have ECU 8600 42 injectors i have grade i have plate i have 15/19 riva impeller i have everything and my top speed is 75mph

  4. #4

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    Skegs? filled ride plate holes? adjustable exit nozzle? rear air intake?

  5. #5
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    4" air intake big fuel pump 4,2bar exit nozzle with 82ring filled ride plate holes
    open loop i did everythinggggggg but nothing.

  6. #6
    speedskixp's Avatar
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    Quote Originally Posted by kiriazidis View Post
    4" air intake big fuel pump 4,2bar exit nozzle with 82ring filled ride plate holes
    open loop i did everythinggggggg but nothing.
    What ecu? What rpm's are you turning? solas 15/20 4 blade is the prop you need to start with. Take a close look at your pump shoe where the grate meets it and make sure its not broke.

  7. #7
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    RE-programming australian ecu 8600 the top rpm is 8100 in the sea and 8350 in the river nothing is broken i double check it.

  8. #8
    speedskixp's Avatar
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    Quote Originally Posted by kiriazidis View Post
    RE-programming australian ecu 8600 the top rpm is 8100 in the sea and 8350 in the river nothing is broken i double check it.
    Is that 15/19 a 4 blade or 3? May need to de-pitch but I'm curious if your running the correct injectors and what your A/F ratio is. Seams you should be able to turn that prop. What are the weather conditions?

  9. #9
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    15/19 is 3 blade and i don't know A/F ratio but the motor seems to work fine with this injectors the sparks looks black so the fuel is ok it 's not the perfect way to check the A/F but it 's something, the weather is 20 degrees Celsius in Greece and the water 12.

  10. #10
    ROTAX RACING performance
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    you tell bullshit , here in that post 2 weeks ago you told everyone your ski goes 80 mpH in the sea !!!!!!!!!!!!!!!!!!, why you should change IC , SC ,ECU , etc, if your ski allready goes 80 mpH .

    http://www.greenhulk.net/forums/show...55#post1350555

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