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  1. #21
    kensmith's Avatar
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    With stock valves and springs ? Right now I only have Titanium retainers Only? Word is this 08 motor has heavy valves compared to the new 300.

  2. #22
    raiderx72's Avatar
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    I would do a built head valves springs and retainers.

  3. #23
    kensmith's Avatar
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    Oh, so these are Only good to spot check.. hmmm So a data logger will work with stock ECU ?

  4. #24
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    Quote Originally Posted by imp0ster View Post
    Nope. Need a data logger. You have absolutely no clue where that AFR reading is. It's just good to spot check to make sure you're not flooding the engine or about to destroy a piston. 7K could be full boost, mid boost or low boost depending on where that throttle is.
    Also the factory pump has no problems stuffing @ these speeds ?

  5. #25

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    Quote Originally Posted by kensmith View Post
    Oh, so these are Only good to spot check.. hmmm So a data logger will work with stock ECU ?
    Its a separate installation added to the PWC. Example is the MaptunerX hand held. you can buy a PLX kit from Riva or Greenhulk which includes O2 sensor, wiring, PLX module, and software to enable Monitoring and Logging on a MaptunerX device and you'll need a maptunerX as well. Approx $500 plus installation. Plus the cost of a MaptunerX.

  6. #26
    imp0ster's Avatar
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    I didn't run a stock pump and I wouldn't run an old stock pump at 9K and 17psi. Datalogger is worth it if you're chasing speed and want to make sure you're not going to blow the engine.

    As far as valves I ran Ferrea. I've always run Ferrea.

  7. #27

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    Quote Originally Posted by imp0ster View Post
    I didn't run a stock pump and I wouldn't run an old stock pump at 9K and 17psi. Datalogger is worth it if you're chasing speed and want to make sure you're not going to blow the engine.

    As far as valves I ran Ferrea. I've always run Ferrea.
    Which aftermarket brand or model pump works well for upgrading a stock 159mm pump?

  8. #28
    raiderx72's Avatar
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    I ran a stock pump for years until I switched to a Solas pump. Most people are running stock pumps.


  9. #29

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    Quote Originally Posted by raiderx72 View Post
    I ran a stock pump for years until I switched to a Solas pump. Most people are running stock pumps.
    Was the solas pump worth the upgrade?

  10. #30
    kensmith's Avatar
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    So the stock pump stator will not handle these Rpms or speed ? Its the newest style/part # for this ski bought new Oct 18 with a Solas wear ring and Solas 13/17r impeller with Riva pump load intake grate, R&D seal and 2 degree pump wedge.

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