more power on my engine
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more power on my engine

  1. #1
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    Default more power on my engine

    hello froam croatia
    i have a engine block 3970020
    it was rebuild this year
    i want more power and i looked for this
    http://www.cpperformance.com/p-12380...am-bottom.aspx
    and
    http://www.cpperformance.com/p-12381...l-ram-top.aspx

    can i set this tunnel ram on my engine ?
    i would set there two holley carbs

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  3. #2
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    Quote Originally Posted by ncrncevic View Post
    hello froam croatia
    i have a engine block 3970020
    it was rebuild this year
    i want more power and i looked for this
    http://www.cpperformance.com/p-12380...am-bottom.aspx
    and
    http://www.cpperformance.com/p-12381...l-ram-top.aspx

    can i set this tunnel ram on my engine ?
    i would set there two holley carbs
    i think, if your looking for a T/R for a SBC, you can do alot better than that!...if you check the ads on here & on www. Racingjunk.com & EBay & a few other sites, you can find what your looking for...just remember, its gonna cost you $$$ to have it sent to Croatia!!!! ...just saying my .02 cents

    FastRat

  4. #3
    Blown, OHBA Member Wild Hair's Avatar
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    the casting # say its a 200 hp 307 sbc. If you want more power I would look for a larger motor. And damn son, can you even get any parts where your at for an american made hot rod. i dont think your gona have Napa know how where your at.

    Good luck with your endevor
    OHBA GROWTH THROUGH PARTICIPATION
    Built Cheyenne Tuff, With Chevy Stuff.
    well the block is GM any ways


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  6. #4
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    What kind of boat is the engine in?
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

  7. #5
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    it is a offshore rib

  8. #6
    Senior Member Josh@JBP's Avatar
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    Not sure if the application warrants one, but the Edelbrock street tunnel ram is the best bang for your buck if a tunnel ram is what you want

    http://www.summitracing.com/parts/EDL-7110/?rtype=10

  9. #7
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    Quote Originally Posted by Wild Hair View Post
    the casting # say its a 200 hp 307 sbc. If you want more power I would look for a larger motor. And damn son, can you even get any parts where your at for an american made hot rod. i dont think your gona have Napa know how where your at.

    Good luck with your endevor
    307 is a 5.0l engine
    but this is 5.7 engine

  10. #8
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    Quote Originally Posted by [email protected] View Post
    Not sure if the application warrants one, but the Edelbrock street tunnel ram is the best bang for your buck if a tunnel ram is what you want

    http://www.summitracing.com/parts/EDL-7110/?rtype=10
    Thanks for the advice
    and this is for my engine block ?

  11. #9
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    are two holleys 450 enoughor is it better to set two 650 ?

  12. #10
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    Tunnel Rams power ranges depending on the CID, the smaller the higher, in the middle rpm ranges. Lets use 4000 rpm. This is an Inboard/Outboard I am assuming so you have a pretty much a fixed gear ratio and only prop changes can raise and lower rpm. An I/O must be able to go from idle 900 rpm to 5800 rpm or so without a gear change. The best 2 scenerios to do this is CID or positive manifold pressure, ie Blower.

    If you put that tunnel ram on you are going to have trouble getting the boat "moving" because you will have moved the powerband up.

    A good dual plane intake like an Airgap would be a better choice.
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

  13. #11
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    I have a bravo 1 drive
    I need more horses and more RPM so I can put biger pitch prop

  14. #12
    cfm
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    Please tell us:
    Boat manufacturer + model /size / weight / performance bottom or ?????
    Current engine build now - carb, intake, heads, cam, compression
    What exhaust ?

    What speed does it run now and what rpm ? What type prop and what size ?

  15. #13
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    I am now rebuilding the boat
    boat is 20 feet long
    it will have about 1200 kg with the motor

  16. #14
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    i buy the tunnel ram edelbrock 7110
    witch carb i need
    450, 600, 650 , 750 cfm
    and what brand
    holley ederbrock or something else
    i am lokking on ebay

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