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  1. #1
    Roll Tide!! SeadooTech's Avatar
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    injectors for 68-140le

    I can't decide which injectors to use, I hope to be using the riva ecu 8650 with rrfpr and walbro 255 but I don't know if I should use bosch 48's or 50's, thanks


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    Eric Ocman's Avatar
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    Quote Originally Posted by SeadooTech View Post
    I can't decide which injectors to use, I hope to be using the riva ecu 8650 with rrfpr and walbro 255 but I don't know if I should use bosch 48's or 50's, thanks
    If using Riva ECU the 48's if using a Les Cooke ECU the 55s both from Bosch.

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    MSRXP's Avatar
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    I would go with the 48's for that particular charger.

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    Roll Tide!! SeadooTech's Avatar
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    ok, what about fuel pressure? also which ecu would be better since i will have to get mine programmed? thanks

  5. #5
    MSRXP's Avatar
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    Quote Originally Posted by SeadooTech View Post
    ok, what about fuel pressure? also which ecu would be better since i will have to get mine programmed? thanks
    Get the re-flash from Jerry. It will really wake the ski up. If you are going with Jerry's re-flash, go with the Bosch 50's. Base pressure with 50's is around 43-46 psi. Base Pressure with 48's is around 58. The ski run's better with the re-flash if you have the 50's. DO NOT get the Riva 50's. Get the Bosch or Lucas. If you run the 48's, you are RICH RICH RICH with the 48's because the pressure has to be higher. I was around 10.9-11.2. With the 50's, I was dead on at 12.7 and 13.4 mid and wot was 12.1. Go with the 50's. The base pressure is going to be different with each setup. Good luck. See my post in the re-flash thread. Page 2.

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