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  1. #1

    Tested new mods today! Is this on par?

    I have an 08 GTX Limited 215 with 60 hrs. I recently got some go-fast goodies (Thanks Jerry):
    • X charger
    • 42# injectors
    • Fizzle 4" air intake (front)
    • Solas 15/20R prop

    Finally got a chance to test everything out today and the ski feels great! Definitely pulls harder throughout the entire range. My question--is this on par for what it should be running? I GPS'd at 69.1 mph (built in Garmin) and my rpm's averaged 7740ish--maybe an occasional peak of 7760. What rpm will I be shooting for on a re-pitch, 8000? and will there be some marginal gain with that? Also, I have not even done any of the simple mods like fill the rideplate holes, etc.


  2. #2
    JT jpt7779's Avatar
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    With a STOCK ECU you should pitch to 8140-8160 on your 08 GTX. Send your impeller to Erik at www.speedfreeksracing,com and he will get your rpms up with around a 12.5/19 pitch.
    Your rpms are too low. Are you still using a stock intake grate? If so, get the R&D grate it will help a lot. You should be in the 73-74 mph range.

  3. #3
    !!!! wave jumper !!!! 05_RXP's Avatar
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    main question are you running a wideband and rrfpr? if so what are your afr numbers?

  4. #4
    Literally, I've only got the mods listed above. Still on stock intake grate and no rrfpr or wideband. Jerry recommended the Riva grate for mine so that will be next along with filling the ride plate holes. I will also repitch the prop.

  5. #5
    monaroman76's Avatar
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    You are likely lean with that setup. You need a rrfpr.

  6. #6
    mac_man_luke's Avatar
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    If your running stock intercooler id say you should be fine, i measured my setup when running same mods as you and i was getting at leanest 12.4 at WOT.

  7. #7
    monaroman76's Avatar
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    Quote Originally Posted by mac_man_luke View Post
    If your running stock intercooler id say you should be fine, i measured my setup when running same mods as you and i was getting at leanest 12.4 at WOT.
    My apologies. I thought it said fizzle intercooler!!

    Like is right.

  8. #8
    !!!! wave jumper !!!! 05_RXP's Avatar
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    My bad I thought he had external i/c but if not you need to send that prop out because it is to steep for that setup.

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