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  1. #1
    danieletrono's Avatar
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    Diff between Fuel Press regulator and fuel powershot

    As i have understood both are for pressure regulator. But what are diff for an ultra user?
    With each what i need to upgrade to suit with one or te other in the ultra?
    Do i need a diff fuel pump? Or pink inj or other?

    Thanks for patience


  2. #2
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Fuel pressure regulator lets you adjust fuel pressure, the Power Shot lets you adjust how and when the injectors deliver the fuel............

  3. #3
    danieletrono's Avatar
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    T is not the same?? So for powershot i need pink inj and for fuel regulator you need a new pump? If i want to update to a pulley kit.

    So what is the final solution for pulley?

    Thanks

  4. #4
    danieletrono's Avatar
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    My big question is... If i upgrade pulley so i have two aftermarket fuel system option( one powershot plus pink inj and the other fuel pump and fuel pressure regulator ??) or i need both to have a good work or which one is better?

    Thanks

  5. #5
    Kiwi Racer's Avatar
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    You are painfull,
    The Jetworx pulley kit still needs a fuel pump and injectors,,NO powershot,

  6. #6
    danieletrono's Avatar
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    But i will buy rogue racing pulley!!!

  7. #7
    Hooah_Killer's Avatar
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    daniel daniel daniel if you get a bigger fuel PUMP such as a walbro gss342 AND get a fuel pressure REGULATOR and set the pressure between 43-45 you DO NOT need pink injectors the stock ones will be fine and unless plan to use race gas (to be safe) stick with the 1:1 pulley. the 1:1 pully WITH the walbro fuel pump AND fuel pressure regulator and the 09 pistons/cams you will be around 300 HP................ and 73-75mph (maybe) depending on ride plate etc etc........

    just PLEASE take HEED on ALL of the issues of cracked heads, etc etc with this machine and be prepared for expensive fixes!!!!!!!

    as the old adage goes "if it aint broke, dont fix it"

  8. #8
    danieletrono's Avatar
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    Very very very usefull.... But i will use not a 1:1 from r&d but a medium rogue racing. This last one is little bigger psi 2,5 psi instead of 2 psi. Is ok the same config??

    But can i risk also with an entry level pulley? Which coild be the things i can break?


    Thank you very kich for patience

  9. #9
    Beagleman62's Avatar
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    If you are going to buy a Rogue racing pulley, why don't you call them
    and see what they reccomend when using their pully.

  10. #10

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    The issue here is what to do when an engine is modified. That is the key question.

    You have to understand that first of all, oem production products are only designed for one specific purpose. Injectors, fuel pumps, fuel curves, timing curves are chosen for the SPECIFIC engine and power being made...period. There usually is no extra margin given for any modifications. So when someone develops a kit to add power, they need to match the fuel and timing to that modification. The problem is, installing bigger injectors, cranking up the fuel pressure and making a new timing wheel, are just band aids. They might provide enough fuel to keep the engine alive but certainly are not optimized for that engine. Adding boost does not necessarily mean that the increase in fuel is across the board. Given the engine design, intake design and the tuning pressures being induced, both intake and exhaust, changes usually need to be made at specific points not just across the board.

    Be very careful when adding power to you engine. AFR meters are a must have tool for making sure your fuel delivery matches your engines power output but without the ability to make corrections at certain points, it's all still a band aid!!

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