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  1. #51

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    Quote Originally Posted by hotbutta View Post
    I think the problem lies in this small intercooler on the 230's. We were getting 100*f IAT on stock cooling. I got 72 mph @ 8320 on a customers GTRx 230 after adding 1/2" dump AND a restrictor going to the exhaust cooling. I also did IMUK through the throttle body and air filter under seat with cutouts. I will be doing more logging on Monday.
    I think another problem with these 230's is the cam. Seems everything from '08 155's to '17 300's used the 51 cam except for the 230's. Dropped in an Eastside regrind and picked up at least 400 rpm. Ran out of weather before I could get the tune right. On the 4th one from Jesus. Also getting ready to put a Supercooler in.

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  3. #52

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    I have a Riva Gen 3 with 14 hours on it for sale that came out of my 17' GTR 230, not sure if it'll in your hull. Theres a guy in Orlando with a gtrx doing 81mph with a eastside cam and jp racing tune, among other mods.

  4. #53
    Madkidd's Avatar
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    Click image for larger version. 

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  5. #54
    Madkidd's Avatar
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    On an additional note I added the x-package/ski module but didn’t seem to do anything other than the dash functions, which reminds me I’m going to try to contact bro and see how much information they can Not give me. Perhaps this winter I’ll do the cam swap since there will no longer be a manufacturers warranty to worry about.


  6. #55
    Davrac's Avatar
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    Plenty of info on the 230 engines just got to know where to look. Join the FB group Seadoo GTR Riders Group. Best intercooler to date I have tested is the MZM Racing intercooler sold by VTech. Hands down beats anything else on market.

    Also use a 3/4” IC dump. Best results for most stable IAT’s

  7. #56
    Madkidd's Avatar
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    Quote Originally Posted by Davrac View Post
    Plenty of info on the 230 engines just got to know where to look. Join the FB group Seadoo GTR Riders Group. Best intercooler to date I have tested is the MZM Racing intercooler sold by VTech. Hands down beats anything else on market.

    Also use a 3/4” IC dump. Best results for most stable IAT’s
    As far as the dump goes it comes straight out of the intercooler, then 12” later thru the pump tunnel and into the open air space at the top. So I’m my case I don’t see a 3/4 being a benefit. Then again I may be wrong on the size, it’s whatever comes out the intercooler. To be honest I’m so frustrated i haven’t touched it, also since I replaced my sender and still get a random “defective fuel level sender” message. I haven’t even been on the water but twice all year.

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