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  1. #91
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    Cr:?

  2. #92
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    Any updates? I've been shopping for the used Honda/Tohatsu 150's just because of this.

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  4. #93
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    This is almost identical to the marine engine. This makes 335 HP / 220 TQ. 12.5:1, with 93 pump gas, 4P Pro 156v2 CNC cylinder head with RR3 cams, Skunk2 Alpha header. With a stock intake, obviously the numbers would drop.


    Last edited by WavetoWave; 04-21-2019 at 02:28 PM.

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  6. #94
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    Quote Originally Posted by cooperider View Post
    Any updates? I've been shopping for the used Honda/Tohatsu 150's just because of this.
    Ya, the benefit of the Honda is the aftermarket parts available from the automotive world. The downside is the gearcase and a few other things. You would really need to adapt a better gearcase on to the BF150 to make it work.

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  8. #95
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    Quote Originally Posted by WavetoWave View Post
    Ya, the benefit of the Honda is the aftermarket parts available from the automotive world. The downside is the gearcase and a few other things. You would really need to adapt a better gearcase on to the BF150 to make it work.
    Are you saying you gave up on the project? We're all still waiting to see the results of the marine engine - - - not similar products lol.

  9. #96
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    waiting for the 10 speed gearbox to get it on the plane...

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  11. #97
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    Quote Originally Posted by powerabout View Post
    waiting for the 10 speed gearbox to get it on the plane...
    those torque numbers are weak!

  12. #98
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    That would be what, 8,000RPM to get that horsepower with that torque?
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

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  14. #99
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    Quote Originally Posted by home made tunnel View Post
    Are you saying you gave up on the project? We're all still waiting to see the results of the marine engine - - - not similar products lol.
    It's exactly the same. Lol. Can't put the marine engine on that dyno. Like I said before, It was just a fun side project, it worked the way we wanted. Adding a lower, and testing is much more involved.
    Last edited by WavetoWave; 04-26-2019 at 02:51 PM.

  15. #100
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    Quote Originally Posted by sick_nick View Post
    those torque numbers are weak!
    I wouldn't say it's weak at all, it's a small engine. Kind of amazing how much power it can make actually.
    Last edited by WavetoWave; 04-26-2019 at 02:51 PM.

  16. #101
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    Quote Originally Posted by WavetoWave View Post
    I wouldn't say it's weak at all, it's a small engine. Kind of amazing how much power it can make actually. A stock 300 XS would put out about 280 Lbs at 5,000 RPM as a comparison.
    you need to look at the torque way lower in the rpm range.
    There have been 2 4 stroke experiments in F1, in case the 2s ever goes away?
    A v8 hyabusa and a custom v6 nissan race engine.
    Both need to get towed onto the plane to compete, or have 10 speed geaerbox, lol.
    From a dock start the 2s nearly lapped them in the first lap yet at 8000 ish they have the similar numbers I would guess?

    https://www.youtube.com/watch?v=L2ZWqI8Xnfs
    https://www.screamandfly.com/showthr...F1-Tunnel-Hull
    Last edited by powerabout; 04-24-2019 at 12:36 AM.

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  18. #102
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    Quote Originally Posted by powerabout View Post
    you need to look at the torque way lower in the rpm range.
    There have been 2 4 stroke experiments in F1, in case the 2s ever goes away?
    A v8 hyabusa and a custom v6 nissan race engine.
    Both need to get towed onto the plane to compete, or have 10 speed geaerbox, lol.
    From a dock start the 2s nearly lapped them in the first lap yet at 8000 ish they have the similar numbers I would guess?

    https://www.youtube.com/watch?v=L2ZWqI8Xnfs
    https://www.screamandfly.com/showthr...F1-Tunnel-Hull
    Wow, those must have been poorly executed. Why would they bother? In the case of the BF-150, just stock it has plenty of torque to get a small sport boat on plane, no problem. This was a fun experiment with off the shelf parts. Definitely not trying to be an ultralight race engine. Not even sure how that would come up.

  19. #103
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    Everyone on the tube

  20. #104
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    2.3L a 400r is only 2.6L and there are claims of 480hp/7800rpm with a tune.
    Quartershot T-3R 15" 3.5L E-Tec 1.62 Sportmaster


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  22. #105
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    Quote Originally Posted by baja200merk View Post
    2.3L a 400r is only 2.6L and there are claims of 480hp/7800rpm with a tune.
    4slug can compete with 2s when its boosted

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