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  1. #1
    mikelytle1077's Avatar
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    opinions on rev limit

    trying to get some opinions on what rev limits guys are running and for how many hours ? stock valves with upgraded valvetrain


  2. #2
    ATNryan's Avatar
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    I ran the 8350 beta tune from Vtech for at least 50 hours last summer on the stock valvetrain with no issues. Recently had Eastside Powersports upgrade my valvetrain with the RIVA kit and will be running the 8650 tune shortly.

  3. #3
    szt8b7's Avatar
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    I plan to run 8650 with stock valves, upgraded springs/retainers.

  4. #4
    boost junkie skidoochris's Avatar
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    03 valves are not good, the exhaust are known to brake
    what year are you asking about
    I would not rev any past 8300 with out some upgrades

  5. #5
    mikelytle1077's Avatar
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    im doing the valvetrain upgrade on the gtx same valves as the 04-05 215hp they looked flawless when i rebuilt the motor. sure wish i would have did the valves then but didnt, so who has been running 04-05 valves at 8500-8600 any problems ?

  6. #6
    wotxxxsd's Avatar
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    Any valves from 06 and older are weaker than 07 and newer.
    I would run 08 and newer valves to be safe.
    Pay a little now or a lot after they go boom...

  7. #7
    mikelytle1077's Avatar
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    yeah i hear you but anyone have experience running the older valves i have seen quite a few lets hear about it.

  8. #8
    Boost-A-Holic's Avatar
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    You should just leave it at 8200......ill let you know what 15lbs feels like

  9. #9
    shouldn't even cross your mind, old valves out new ones in, and do the retainers no matter what revs above stock,

  10. #10
    mikelytle1077's Avatar
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    Quote Originally Posted by Boost-A-Holic View Post
    You should just leave it at 8200......ill let you know what 15lbs feels like
    lol

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