Want more speed, What next?? - Reply to Topic

Reply to Thread

Post a reply to the thread: Want more speed, What next??

Your Message

 

Send Trackbacks to (Separate multiple URLs with spaces)

You may choose an icon for your message from this list

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Additional Options

  • Will turn www.example.com into [URL]http://www.example.com[/URL].

Topic Review (Newest First)

  • 08-03-2010, 11:27 AM
    pilot940
    Don't have a dyno sheet...

    I suppose my more direct question is, will a droop be worth it, or a loader grate?
  • 08-03-2010, 09:38 AM
    DuaneHTP
    Probably not. Do you have a dyno sheet for us to look at? Then we could tell you for sure.
    Duane HTP
  • 08-03-2010, 08:23 AM
    pilot940
    Quote Originally Posted by DuaneHTP View Post
    You are pushing your limits with that Olds. Enjoy, but don't hold it at that RPM for long periods of time. It gets real expensive.
    Duane HTP
    Oiling wise it is set up good, as well as the mains being strapped. Any ideas at getting it up to 70mph. Could I get the same speed out of an AA impeller and reduce the rpm's??
  • 08-03-2010, 08:20 AM
    Storz
    Impressive speed for sure.
  • 08-03-2010, 06:45 AM
    DuaneHTP
    You are pushing your limits with that Olds. Enjoy, but don't hold it at that RPM for long periods of time. It gets real expensive.
    Duane HTP
  • 08-03-2010, 06:11 AM
    pilot940
    Quote Originally Posted by aj06bolt12r View Post
    You probably already know this but from what I've read you don't want to spin that olds much higher than that anyways. They don't like high rpm. I would say get a place diverter but you have a Jacuzzi so I don't know if there is an equivalent. It would save you a lot of hastle to sell What you got to someone who just wants to cruise. Then buy a decent Hull that already has a bbf and a Berk with a place diverter. Shouldn't be too hard to do around 80 with 500hp and correct set up. You can fall off a log and get 500hp with bbf stock crank and rods ported dove heads single plane high rise intake and 950 Holley forged pistons 10:1 compression flat hydraulic cam with about [email protected] and .580 lift, S
    screw in studs and some scorpion full rollers. Run pump gas all day. Relatively cheap and much more durable than the olds.
    No way, the olds 455 rocks!
  • 08-03-2010, 06:06 AM
    pilot940
    Yeah, I have a diverter and the tank is in the front. The tank is beat and I am ready for a new one.
  • 08-02-2010, 08:05 PM
    jetboatperformance
    Quote Originally Posted by pilot940 View Post
    I finally got my engine squared away and the boat is running smooth. I have a witchcraft hull 18ft, and an olds 455. A Jacuzzi WJ with an energizer and A impeller. I get it up to 5100 rpm and GPS a speed of 62mph. I am thinking a droop is the next best thing to do???? I also seem to get some slight cavitation at speed in the light choppy water and tach will maintain 5200 rpm (loader... inducer???)

    Any ideas?? Thanks!
    Actually pretty respectable as it is now , just curious where the fuel tank/s is and do you currently have a diverter? Tom
  • 08-02-2010, 07:57 PM
    aj06bolt12r
    You probably already know this but from what I've read you don't want to spin that olds much higher than that anyways. They don't like high rpm. I would say get a place diverter but you have a Jacuzzi so I don't know if there is an equivalent. It would save you a lot of hastle to sell What you got to someone who just wants to cruise. Then buy a decent Hull that already has a bbf and a Berk with a place diverter. Shouldn't be too hard to do around 80 with 500hp and correct set up. You can fall off a log and get 500hp with bbf stock crank and rods ported dove heads single plane high rise intake and 950 Holley forged pistons 10:1 compression flat hydraulic cam with about [email protected] and .580 lift, S
    screw in studs and some scorpion full rollers. Run pump gas all day. Relatively cheap and much more durable than the olds.
  • 08-02-2010, 08:26 AM
    pilot940

    Want more speed, What next??

    I finally got my engine squared away and the boat is running smooth. I have a witchcraft hull 18ft, and an olds 455. A Jacuzzi WJ with an energizer and A impeller. I get it up to 5100 rpm and GPS a speed of 62mph. I am thinking a droop is the next best thing to do???? I also seem to get some slight cavitation at speed in the light choppy water and tach will maintain 5200 rpm (loader... inducer???)

    Any ideas?? Thanks!

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71