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  1. #1

    Exclamation rude 2 running 50lb injector will damage engine or not ?

    i want to put the rude2 and running with 50lb injector . don`t change anything more . fuel for engine is enough or not ? like this will damage engine or not ?


  2. #2
    Site Admin Green Hulk's Avatar
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    With which ECU?

    With stock ECU i recommend the 48 lb injectors and also a rising rate fuel pressure regulator.

    With Riva ECU you will of course need the 50lb injectors that ECU is mapped for and you will also need a rising rate fuel pressure regulator.

  3. #3
    richrxp's Avatar
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    You will need a afr gauge,otherwise the rrfpr has no use because you have no idea what you are doing without knowing your afr rate.

  4. #4
    if i use riva stage 3 supercharger and 50 injecter without rrfpr and stock ECU . can or not ? will damage the engine ?

  5. #5
    dduck dduck1628's Avatar
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    Quote Originally Posted by hendyho View Post
    i want to put the rude2 and running with 50lb injector . don`t change anything more . fuel for engine is enough or not ? like this will damage engine or not ?
    You will need a RRFPR and set your AFR at WOT to make this work.

  6. #6
    richrxp's Avatar
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    Quote Originally Posted by dduck1628 View Post
    You will need a RRFPR and set your AFR at WOT to make this work.
    +1

  7. #7
    Moderator Snoman's Avatar
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    Quote Originally Posted by hendyho View Post
    if i use riva stage 3 supercharger and 50 injecter without rrfpr and stock ECU . can or not ? will damage the engine ?
    With a Riva Stage 3 Scer and 50s on a stock ECU you are way to rich..With that setup on a stock ECU you will want to run stock injectors (38 lbs) with a RRFPR set at 58 PSI and you will be fine..I run that exact setup on my wifes ski and she has run all year flawlessly.....

  8. #8
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by hendyho View Post
    if i use riva stage 3 supercharger and 50 injecter without rrfpr and stock ECU . can or not ? will damage the engine ?
    with a stage 3 supercharger and stock ECU you run the 42 lb injectors. 50's are too big.

  9. #9

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    Not sure how this compares but i run an ET 137MM charger with 50#ers and stock ecu,pulling the plugs does not show an over rich condition,its been running this way for 40 hours,I am SURE its rich down low as it is not perfectly smmoth running at wake speeds,any other speed its crisp as can be and safe.I do have a Rude fuel controller and will lock in hte tune as sooon as i can get the 02 sensor installed.
    IMO i would find a used Rude Fuel controller and get it tuned CORRECTLY over using a rising rate reg on your setup

  10. #10

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    WHy not just have a custom ECU set up for you system???

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