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  1. Propellers
    Its has a Yamaha 250 vmax. It has a stainless 4 blade solas 14x23. I know the Ranger bass boat is heavy. But I was wondering is there a better prop to get it up on a plain faster?
  2. V-Drives
    Im looking for some advice on prop selection. My boat is a ~17' Howard with hallcraft v drive and 16% gears. The engine is not too powerful, only around 350hp and I've got a 1 inch prop shaft. What kind of prop should I be looking for? I see all sorts of props on ebay with all sorts of pitch...
  3. Jet Boats
    i have a 1977 daytona elimnator with a 468 bbc it has a tunnel ram with 650s on it steel cast heads rectangler port heads 110cc 10:1 compression flat tops motor spins at 5000 rpms i want to pull out the solid cam and go roller i had with all the idling and going threw no wake zones you have to...
  4. Jet Boats
    A friend of mine is making me a great deal on a blueprint 632" motor. 815/800. How do you select an impeller? I do know I have an 'A' aluminum in there now and it turns 54-5500 on my tach (not sure how accurate it is) @62-65 mph. Hardin 454. As far as I know the jet is stock. Im sure Ill need a...
  5. V-Drives
    I thought I would make a new thread since I have a new motor :wink2: Hondo true flat, 18% gears, prop is a 12 x 16, but that is most likely going to change depending on need. The motor is getting built right now, 468 BBC with alum heads, just shy of 11:1 compression, currently a victor jr...
  6. GN7 On the Dyno
    Ok guys, I know this will always big one of the biggest questions on engines but I needs help picking the right cam for my ride. I have a heavy 21' ultra with a mostly stock 454 chevy running large oval port heads and 1.7 rockers. It being push by a berkeley jet. The jet is get rebuilt and will...
  7. Jet Boats
    Recently acquired a 1973 Taylor SS 18" with a JE that needs rebuild. With the boat rest I don't have the money to go bronze or SS impeller right now. The motor is a 460 with -7cc pistons and D3ve heads. Should be about 9:1 compression according to the calculator. I need a hydraulic tappet cam...
  8. V-Drives
    Hello guys, first post I believe. I bought a 1969 Hondo flat bottom last night with a 468 big block chevy. The previous owner did not remove the inner valve springs when breaking in a new cam and flattened it out on the first trip. The boat sat parked for about 4 years and now I have it. I am...
  9. V-Drives
    Mods...please delete. Thread deleted.
  10. GN7 On the Dyno
    What spark plug should be used in a 426 hemi with a 8:71 blower making about 5 lb. of boost. Dynoed at 800HP. Gas is 110 octane leaded. Motor came with Accel 111 plugs, but they are no longer available.
  11. Jet Boats
    I seem to have a lot of play in this shifter before it moves the reverse gate or carb. I was told a floor mount foot throttle would work wonders for me but I have a sleek craft executive and the seat are just too high. Would thos billet shifter work better then one I have now. Not looking to...
  12. Jet Boats
    so I am building a 454 for my 21 foot hawiian mini day cruiser my motor so far is a 73 block bored to.060, 049 heads haven't done the cc yet (waiting on the kit to get here) but I think they are 115cc, 20cc domed speed pro pistons which should net me around 9.5-10:1 compression(wont know till I...
  13. Boats for Sale
    Summer is right around the corner....are you ready? Boulder Boats has what you need. Currently we have an amazing selection of High Performance boats. To view our inventory click this link: www.boulderboats.com
  14. Boats for Sale
    Are you ready for summer? Boulder Boats has what you need. Currently we have an amazing selection of boats. Check out our huge inventory at: www.boulderboats.com
  15. V-Drives
    Hi Guys fantastic web site, love the tech. forum I have a project at present which is Gen VI Chev BB 509 short block is together: JE 7.5 dished pistons 6.385"rods forged crank Im unsure whether I will run the 088 Gen VI cast iron square ports, or have some #861 raised bowtie alum. heads Im...
  16. Boats for Sale
    Summer is right around the corner. Don't be left out! Nationwide and Worldwide shipping. Currently Boulder Boats has an amazing selection of High Performance boats. To view our unbelievable inventory visit: www.boulderboats.com
  17. GN7 On the Dyno
    I/OB low hr stock internal 454 mag with rectangle port heads(heads were refreshed 2 yrs ago they added hyd roller rockers), emi thunder headers w/risers,edl air gap intake with Holley hp750 carb,with a water pump bypass. what are some of my nice options to for a cam/lifter/ swap with out...
  18. GN7 On the Dyno
    so im doing a motor for a guy and he already has the parts, so im working with what i got, i know i know the heads are to big, but what cam should i choose to make them work for the application. going in a 21 foot hallet vdrive cruiser, has 15s in the v-drive with one of those velvet...
  19. Boats for Sale
    Huge selection of Performance boats Boulder Boats has and incredible selection of performance boats! We offer boats in many styles and colors. Nationwide and Worldwide shipping. To view our unbelievable inventory visit: www.boulderboats.com
  20. GN7 On the Dyno
    Im thinking of upgrading the cam in my boat. So what I have know is a heavy ass boat with through prop or drive exhaust and i have no clue what would be a good all around cam. I want to boost the performance of the boat, its currently a stock 5.7 but im putting a edelbrock performer intake and...
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