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  1. #1
    Do Work Son 05RXPnoob's Avatar
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    Lake Chickamauga/ Chattanooga TN
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    New Mods ->Water Test ->Need Help/Advice

    Ok my speeds seem to be lower than what I was expecting, alot lower actually;

    Old Mods: Riva Stage1 + Exhaust, Rideplate Holes, OPAS B/O's, Sponsons, pretty much it
    04/03/07
    **72.0**
    Lake Temp= 73
    E. Temp= 77
    RPMs= 8050
    FuelBars= 3-4
    Elev= 674'
    Boost= 7#


    New Mods: All above + Riva S3 Charger, 42#Inj., Riva Rear Intake, XS Intercooler, 15/19R prop. . .
    04/28/07
    **72.8**
    Lake Temp= 68
    E. Temp= 73
    RPMs= 8150
    FuelBars= 6-7
    Elev= 685'

    Boost= 8-10#

    Acceleration felt stronger but again not what I was expecting, RPMs where strong-solid 8150, my analog boost gauge was flickering between 8.5-10#s(never had this problem with lower boost). . .I couldnt find any leaks(water, boost, coolant) of anykind.

    Any help and/or advice is appreciated.

    Jay


  2. #2
    wear ring maybe?

  3. #3

    Join Date
    Jun 2006
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    Highland lake , CT
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    Quote Originally Posted by 05RXPnoob View Post
    Ok my speeds seem to be lower than what I was expecting, alot lower actually;

    Old Mods: Riva Stage1 + Exhaust, Rideplate Holes, OPAS B/O's, Sponsons, pretty much it
    04/03/07
    **72.0**
    Lake Temp= 73
    E. Temp= 77
    RPMs= 8050
    FuelBars= 3-4
    Elev= 674'
    Boost= 7#

    New Mods: All above + Riva S3 Charger, 42#Inj., Riva Rear Intake, XS Intercooler, 15/19R prop. . .
    04/28/07
    **72.8**
    Lake Temp= 68
    E. Temp= 73
    RPMs= 8150
    FuelBars= 6-7
    Elev= 685'
    Boost= 8-10#

    Acceleration felt stronger but again not what I was expecting, RPMs where strong-solid 8150, my analog boost gauge was flickering between 8.5-10#s(never had this problem with lower boost). . .I couldnt find any leaks(water, boost, coolant) of anykind.

    Any help and/or advice is appreciated.

    Jay
    I believe that you have to spin that set up at 8500 rpms, ecu?????

  4. #4
    Site Admin Green Hulk's Avatar
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    Jay, your boost is way low for some reason. At 8100 RPM's i was seeing 11 + PSI of boost with the Riva stage 3 SC a couple of weeks ago.

    Are you running a BOV? Did you seal the stock IC blockoff plug with silicone?

  5. #5
    JFizzleJR's Avatar
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    he's running a BOV from HKS

  6. #6
    You have a boost leak.

    Check your air lines. Oh- and the prop may need adjustment to run 8400+rpm's

  7. #7
    JFizzleJR's Avatar
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    808
    from what he listed he doesnt have an AM ECU so he needs to be turning 8100 rpms.

  8. #8
    Do Work Son 05RXPnoob's Avatar
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    STOCK ECU; theres a good chance that its a boost leak somewhere, whats the best way to check for one-soap/water solution???

    Im running a hks ssqv bov, yes I sealed the stock i/c blockoff with some silicone . . .

    Jay

  9. #9
    ou812's Avatar
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    What year rxp? 06 -07 shoot for 8200 peak rpm. 3 blades like the higher rpm. Ask me how I know..

  10. #10
    Do Work Son 05RXPnoob's Avatar
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    2005, Im pretty sure RPMs aren't my problem here. . .

    Jay

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