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  1. #1
    AWA MEMBER
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    hesitation on a full pull on throttle R3

    is it normal to have rough idle and 13.7 on a/f gauge, also I noticed about 3750 to 4k rpm I see almost 15 a/f....top speed at 8470-8500 is 11.7. it has new LFR7 plugs in it. I was able to get 85 at 17psi


  2. #2
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    the conditions were 65 air 35 water and 30.2" baro

  3. #3
    LugNutLS1's Avatar
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    I assume your hooked up rising rate? What is fuel pressure at idle with hose hooked up?

  4. #4
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    40

  5. #5
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    maybe its just too cold of conditions yet....that was with a 85 nozzle wonder how much more rpms the 87 would do

  6. #6
    What you are experiencing is common when different parts do not work in harmony with a flash.It will be different from one boat to another so you have to try and see what works best.I have tried the R3 with that wheel.I would say try the pinks, raise the rpms a little, and start thinking about a better intercooler.

  7. #7
    Ale's Avatar
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    Or buy a motec...

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  9. #8
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    going to re run it in more ideal conditions warmer water and ambient, top end A/F is close so I don't know, I'm used to Vtech running richer in midrange with no hesitation

  10. #9
    Temp aint it.The R3-R4 tunes did not work right in the low rpms with anything over 550cc for me.The Vtech was a faster flash but also did not work with anything over a LB either.

  11. #10
    Quote Originally Posted by Ale View Post
    Or buy a motec...
    Most of the fastest boats on the forum use reflashes so I would say they work alright

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