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  1. #1

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    Radical 300x engine build!!!!!!!!!!!!!!!

    Why havent we seen any? Or is the factory OEM engine internals as good as it gets?
    I would love to see what could be done to a 300x engine in that area! There is always room for improvements.
    Are these engines completely balanced from the factory? how about lighter pistons all forged?
    Polished and balance ported Exhaust ports?
    Extrude Honed exhaust manifold? or maybe a
    Redesigned Water injected Header?
    Polished Heads?
    Completely Balanced Crankshaft?
    Just some Ideas!! you gotta know the Pro racers do a lot of these things. I have never seen a factory engine that could`nt be improved upon in these area`s. What you guys think?


  2. #2
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Actually most of the internals from the 250 transfer but the pros run a vortech or stock charger. The ecu is the key.

    Sean

  3. #3
    Banned User
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    pistons are different, cranks different, heads different.... its racing though not many people are gonna post pictures of their hard work money well spent

  4. #4
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    Better route to 400 hp is a turbo running 18-19 psi, there was a thread awhile back of an impressive set-up but the guy disappeared.

    http://www.greenhulk.net/forums/showthread.php?t=174437

  5. #5
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    Quote Originally Posted by Mike H View Post
    pistons are different, cranks different, heads different.... its racing though not many people are gonna post pictures of their hard work money well spent
    Actually it's the same parts as the 2010 260. Except for the head

  6. #6
    nicjak's Avatar
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    i do beg to differ, pistons definatly different, timing chain different, oil pump chain guide deleted, there is in fact lots of subtle changes when you do open it up

  7. #7
    nicjak's Avatar
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    way to go riceman yes he disappeared unlike some who just never give up, they keep coming back with different names but constantly trip themselves up by exposing themself lmfao, mate just own up we arent that stupid, you have obviously been allowed back in what have you now to hide?

    Quote Originally Posted by Lake Wylie Skis View Post
    Better route to 400 hp is a turbo running 18-19 psi, there was a thread awhile back of an impressive set-up but the guy disappeared.

    http://www.greenhulk.net/forums/showthread.php?t=174437

  8. #8
    Moderator #985 lasportsmn's Avatar
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    Quote Originally Posted by Lake Wylie Skis View Post
    Better route to 400 hp is a turbo running 18-19 psi, there was a thread awhile back of an impressive set-up but the guy disappeared.

    http://www.greenhulk.net/forums/showthread.php?t=174437
    Turbo is not the way to go. A particular pro has tried it for a while.

    To the OP
    Pretty much the rule of thumb with any ski is How much you got to spend.
    You can contact Farthing Racing and by using your ski as the base of the build you can save alot but still spend alot. At least it is a proven set up.
    http://www.farthingracing.com/eshopp...NG_REPLICA.htm

  9. #9
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    Quote Originally Posted by lasportsmn View Post
    Turbo is not the way to go. A particular pro has tried it for a while.
    Aren't there a few racers running turbo 300s? More difficult to control in rough stuff?

  10. #10
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    Quote Originally Posted by nicjak View Post
    i do beg to differ, pistons definatly different, timing chain different, oil pump chain guide deleted, there is in fact lots of subtle changes when you do open it up
    260-300 piston have same pn# ? Timing chain correct is different as is the valve train.

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