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  1. #1
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    Question Which makes more power 300x or 300xs

    Curious as to what the general opinion is on these 2 motors, obviously one being an EFI @ 3.0L and the other a DFI @ 3.2L. I'm not interested in fuel economy numbers, just the bottom line...... HP & Torque.

    First off you'd think 3.2 L is better than 3.0 L, but as we all know that's not always the case. What do you know or think...............
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
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    Gary
    Life Time Member Of The
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    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

  2. #2
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    300x has more HP. They started in 2001 at 315-320 and the 2005 being the last and best year I have seen a few dyno runs on ones that have been balanced put out 353hp. THe 300xs i heard is comin in around 310 stock. Eric Simon says that if he gets a good one to start with he can make 300x power with his mods. The 300xs is definitely a torque monster.

  3. #3
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    Hey Todd..........I guess you'd know a little something about this............

    I've always been curious about these two motors and how they stacked up against each other........

    I found it quite unusual that the 225, 250 and 300XS & ProXS all use the same throttle plate. That alone would seem like a very restrictive and limited intake system and maybe that's where Eric's or Shaun's bigger throttle body come into play.

    Thx,
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
    **Smooth and fastest throttle response
    **2 LB's Lighter that any cast Hot Foot types
    **All "BILLET" construction, compare, you'll see this is the "BEST IN CLASS FOOT CONTROL"......contact me.


    Gary
    Life Time Member Of The
    Haul'n Ass, Burn'n Gas &
    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

  4. #4
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    Yeah the bigger throttle kits are a pretty cool piece. Wayne Taylor used to say the throttle plate only has to be as large as one reed cages since they are the restriction.

  5. #5
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    Nice reply..... Next
    Go boating,be happy!! And wear safety vest please!! And lesson good music...https://www.youtube.com/watch?v=2c5oHITTI8c

  6. #6
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    Quote Originally Posted by Todd D View Post
    Yeah the bigger throttle kits are a pretty cool piece. Wayne Taylor used to say the throttle plate only has to be as large as one reed cages since they are the restriction.
    Your right about that, like a funnel effect.........it won't come out as fast as it went in.....

    Wonder if anybody has been playing with reed cages trying to get a little more past them
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
    **Smooth and fastest throttle response
    **2 LB's Lighter that any cast Hot Foot types
    **All "BILLET" construction, compare, you'll see this is the "BEST IN CLASS FOOT CONTROL"......contact me.


    Gary
    Life Time Member Of The
    Haul'n Ass, Burn'n Gas &
    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

  7. #7
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    I asked Eric that last week. He said that the 5 pettle are about as big as you can go without having them fall apart and end up blowing the powerhead.

  8. #8
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    Got'cha......... I should have guessed that Eric would have already been on top of that one.....
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
    **Smooth and fastest throttle response
    **2 LB's Lighter that any cast Hot Foot types
    **All "BILLET" construction, compare, you'll see this is the "BEST IN CLASS FOOT CONTROL"......contact me.


    Gary
    Life Time Member Of The
    Haul'n Ass, Burn'n Gas &
    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

  9. #9
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    I think I read in one of Shaun's posts that he machines the reed cages and uses slightly larger reeds than the 300X in the motors he builds along with his big bore throttle body.
    85 Checkmate Starflite
    MAD/Wolf 225 EFI


  10. #10
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    Dave,

    I planned on talking to Shaun a little to see what his take on this is as well. I know he's played around with the 300x intake system a little and I'd like to pick his brain on what he's tried that's worked and not worked.

    By the way; Who's watching the reactor...........get back to work.............
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
    **Smooth and fastest throttle response
    **2 LB's Lighter that any cast Hot Foot types
    **All "BILLET" construction, compare, you'll see this is the "BEST IN CLASS FOOT CONTROL"......contact me.


    Gary
    Life Time Member Of The
    Haul'n Ass, Burn'n Gas &
    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

  11. #11
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    Quote Originally Posted by Liberator*21 View Post
    Dave,

    I planned on talking to Shaun a little to see what his take on this is as well. I know he's played around with the 300x intake system a little and I'd like to pick his brain on what he's tried that's worked and not worked.

    By the way; Who's watching the reactor...........get back to work.............
    Gary

    I have a few questions for him as well. I'm still undecided on a winter project or not. We'll see how I like the MAD/Wolf motor once I get it to run right. I'd really like to do a 3.2 300X stroker.

    That reactor is somebody elses baby now. Too many hours, shift work and stress for me. I'm a Telecom tech here now. 5 days a week and steady daylight.
    85 Checkmate Starflite
    MAD/Wolf 225 EFI


  12. #12
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    Got-cha Dave on the work details.

    Shaun's a great guy to talk to.
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
    **Smooth and fastest throttle response
    **2 LB's Lighter that any cast Hot Foot types
    **All "BILLET" construction, compare, you'll see this is the "BEST IN CLASS FOOT CONTROL"......contact me.


    Gary
    Life Time Member Of The
    Haul'n Ass, Burn'n Gas &
    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

  13. #13
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    Quote Originally Posted by Todd D View Post
    300x has more HP. They started in 2001 at 315-320 and the 2005 being the last and best year I have seen a few dyno runs on ones that have been balanced put out 353hp. THe 300xs i heard is comin in around 310 stock. Eric Simon says that if he gets a good one to start with he can make 300x power with his mods. The 300xs is definitely a torque monster.
    Are these propshaft or crank dyno #'s??
    33 POWERPLAY
    TRIPLE 2.5's

  14. #14
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    Stock 300XS 296Hp at the prop the one we dynoed,300X made 310 same dyno

  15. #15
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    Quote Originally Posted by racer View Post
    Stock 300XS 296Hp at the prop the one we dynoed,300X made 310 same dyno
    We're both of those motors "BONE STOCK"...... How did the torque band related between the two.....
    https://youtu.be/IGkyssK27rU

    **Bullet Proof Foot Control >>>>>$295 + Trip
    **Smooth and fastest throttle response
    **2 LB's Lighter that any cast Hot Foot types
    **All "BILLET" construction, compare, you'll see this is the "BEST IN CLASS FOOT CONTROL"......contact me.


    Gary
    Life Time Member Of The
    Haul'n Ass, Burn'n Gas &
    Honorary Blown Motor Club


    Growing old is inevitable, growing up is optional.......

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