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gearing
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  1. Off the Water
    Just bought a 06 4 speed KX450F and will be purchasing a new rear wheel to mount a paddle tire on and will be heading to Pismo. (Willing to buy a used wheel if anyone is parting with one). Looking for advice tooth count for the paddled wheel. Was thinking I could go a bit lower. Thanks David.
  2. V-Drives
    Trying to find out what gears i have in my v-drive. One rotation on top (input) is between 11/4 &11/2 on lower (output). Would that make it 32%. The boat is a 1986 connolly 21' cruser powered by a pfaff built blown 540 (told it was around 1,000 hp) turbo 400 trans, 10* casale v-drive.i have a...
  3. V-Drives
    I finally was able to go test my boat with the prop I got from a fellow schiada fan. It was an 11.5 x14 steel stellings. I have only herd of the term prop burn befor, now I underst. I have only ever ran it with a three blade. With the stellings I can stab her to the floor and she spools up and...
  4. V-Drives
    OK so here is what I have. 19ft Cole quad runner black hawk (if I remember right) tall deck v-hull endurance boat. So its a heavy layup. 1200hp twin turbo 540. Has a 12° c500 and 400 trans. When I was tearing down the casale it had under driven(big gear on bottom) 1.50-1 gears In it. Prop is a...
  5. V-Drives
    What is the most common gear in the v-drive in most KRR's?
  6. V-Drives
    A friend is putting together a Kurtis runner bottom, and was wondering about a good starting place for prop and v-drive gearing. This is going to be a lake boat, NOT a race boat. Power will be a VERY mild 632 pump gas motor. Hydraulic roller, small iron heads, probably 990's. Single 4, cam specs...
  7. V-Drives
    I've only had jet boats, so don't know a ton about v-drives except what iv'e been reading on this forum. My dad has a Hallet 19' SS. It has a blown 502 in it. He is getting some burns on his prop and curious to what you guys think. I tired to do the prop slip calculation but the only thing i...
  8. V-Drives
    I am new to Vee Drives, but not boating. I am inquiring about information of how to determine the gearing. Like in automotive we call gearing 4-10's, 3-55, and so on. I have heard percentage? I am very knowledgeable with gears in the automotive field but new to the Vee drive. I turned my top...
  9. V-Drives
    Just about ready to get the cole back in the water after two years of being down and out of commission. The old motor was a 9.3:1 548cid, the new motor is a blown e-85 522cid. It makes 1003hp at about 7300rpm. My old prop and gear combo was a 10 7/8x15 carry w/ 22's, and it pulled 6800rpm at...
  10. V-Drives
    I marked my v drive casing and shafts, made a full rotation on the input. The output turned about 1/8 more. any idea what the gears may be inside this v drive?
  11. V-Drives
    I know this is going to be a broad range of options and opinions, I am looking for a good place to start off on gears for a 10 deg casale. Boat: Sanger Mini Engine RPM Range 5800: 4.25" Stroke Updating to a Turbo 400 transmission Current Prop: 11 3/4 x 15 Steel Had 12's in it when it...
  12. V-Drives
    Cole TR-2 496 11 to 1 with 1471 and buzzard on alcohol. Engine builder is pushing me towards 50's. This boat is going to hang out at Big River for fun and an occasional race. What would you recommend ? Dave
  13. V-Drives
    I know this is top secret informaton, but can someone tell me what kind of gear and prop combanations the k-boats are running?
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