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  1. #1
    snowrunner's Avatar
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    REVs for XLL 1200R and IR 11/18 (14/20) barely hit 7100

    Not sure where I'm at yet with this prop. I ran out of time before I could get a GPS run, as I was still at a half tank of fuel.

    Dream-o-meter wasn't inspiring confidence at peak of 62, but Tiny Tach showed peak RPMS to be 7101, but was noticing 7050 was where I was running most.

    Ran at 1/4 tank with a Solas 12/18 and didn't have the GPS (dead batteries) or Tiny Tach connected - dream-o-meter was reading 65-66 on smooth water.

    JUst looking at RPM on the 11/18 - shouldn't I be 100 RPM higher? Am I over-stuffing the pump?


  2. #2
    snowrunner's Avatar
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    nyone run this setup? Or 13/19 - what are your revs?

  3. #3

    Join Date
    Jun 2007
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    nashville tn
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    Snowrunner i am running the island racing plate and the similar setup.I am turning 7150 to 7200 depending on the air temp and water conditions on my XLL.I do not have the jetworks on my ski,I was wondering if and how much that helped your ski?

  4. #4
    I noticed I always turned LOWER RPMs with my IR 12/19 vs. my box stock Solas Concord 14/20.

  5. #5
    HopatcongGPR's Avatar
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    Feb 2006
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    are we talking old pump or new pump?

    my xll with 145psi, advent cdi, stock air box with screen removed, 110/120 jets would turn an 11/18 dynafly with a 87mm nozzle 7100 which turned 65mph on the plate you have.

  6. #6
    snowrunner's Avatar
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    Hopa,

    Still running the stock pump.

    Would like to run the 11/18IR vs an unmodded 13/19.

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