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  1. #1
    danieletrono's Avatar
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    Rxt Frankenstein_light mod engine_

    ENGINE Mods:
    -lightner countershaft rotax;
    -high performance race head
    -lightened pistons
    -new rods and little bronze
    -light piston 16.5cc
    -worked pipe larger
    -guidevalve thinner lighter tapered
    -racing springs
    -titanium retrainer
    -rotax injectors 5055
    -third bearing system in the booster with addisction of oil for clutches
    -metal clutch
    -new oil pump
    -8600 ECU RR cdi rotax br2
    -2006 RXT HULL with stock sponson in down position.
    Stock Ic Strock sc impeller repitched prop.

    As you can see in the photo, are there this mods or it is not true this description. Becaause i need to take it but i need to be sure that there is everything as the owner says.
    Thanks for the help.
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    Last edited by danieletrono; 10-29-2008 at 09:17 AM.


  2. #2
    danieletrono's Avatar
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    I put this engine in an rxt.... I have a stock ic and a stock sc.
    What could be a good sc to improve my perfect engine?
    I don't want to put a ic because according to me up to 300 hp is not usefull..the stock one works great...a lot of drivers don't use it on races...
    ides?

  3. #3
    danieletrono's Avatar
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    tt

  4. #4
    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
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    With a stock I/C I think you might be touching 70mph on a RXT. Its pretty restrictive and the stock SC will be holding you back too.

  5. #5
    ROTAX RACING performance
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    the stock IC is the most restriktiv part on the 4 tech engine, and is one of the first thing you have to replace, even more if you live in Italy.
    dont talk BS , that most racers leave the stock IC, because it is not true.

    you cylinderhead is stock, the heavy duty cluch shaft is nothing else as a 06/07 stock shaft it has still ceramic washer, every engine has a Cylindergasket !, even the ROTAX RACING 2 layer gasket will give you only a 1-2 HP gain as it gives a little bit higher compression.( btw you need a new gasket if you put the engine together)
    that engine has maybe 260 HP at 8600 RPM if you use a external Intercooler

  6. #6
    ROTAX RACING performance
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    btw, you have lighweight ROTAX RACING valves, so your valvetrein is OK, what color are the Injectors ?

    with that 8600 RPM ECU (if it is ROTAX RACING )you have to use a external IC

  7. #7
    danieletrono's Avatar
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    Quote Originally Posted by mrracing View Post
    btw, you have lighweight ROTAX RACING valves, so your valvetrein is OK, what color are the Injectors ?

    with that 8600 RPM ECU (if it is ROTAX RACING )you have to use a external IC
    So what you can see not stock in the engine photos?
    There is no rotax cylinder head?
    A friend of mine wants to give me this engine as a very modded engine with 280 hp....is it possible?
    It has so much mods?
    I have other out photos....8600 ecu and injectors for the rotax one.
    What do you think?

  8. #8
    danieletrono's Avatar
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  9. #9
    ROTAX RACING performance
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    the valves are ROTAX RACING , but the cylinderhead has no ROTAX RACING porting as you can see on the still stock valves guide. the valves are ROTAX RACING.

  10. #10
    danieletrono's Avatar
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    Thnaks...but are the pistons , valve spring(titanium) , BALANCER SHAFT(LIGHter?) are stock?
    Is this a modded engine as a 300 hp modded engine?
    Thanks

    Can i put on it from an rxpx a injectors+ complete sc+ ic? is it right using the 8600 ecu?

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