how does inducer affect impeller?
+ Reply to Thread
Results 1 to 14 of 14

Thread:
how does inducer affect impeller?

  1. #1
    Senior Member
    Join Date
    Apr 2009
    Location
    SW Ohio
    Posts
    201

    Default how does inducer affect impeller?

    Does an inducer affect the horsepower requirements of an impeller? Or does it only affect low RPM power and have little to do with top end?
    My boat is a pretty heavy lake cruiser, so I take it an inducer would help get out of the hole but also let me "get away" with a fatter impeller for efficiency? I still have a 455 olds so I have torque but need to keep the rpm low/reasonable.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member DuaneHTP's Avatar
    Join Date
    Dec 2007
    Location
    Shell Knob, MO
    Posts
    1,379

    Default

    If your pump is in good shape and still cavitatiing out of the hole it would help. They do not hurt the top end, but the larger impeller for effeciency also helps the hole shot a lot. So if leaning towards a larger impeller, I'd try it first. It may be all that you need. If you do need an inducer, we have a new one on the market That blows the orig one away.

  4. #3
    Breathing Diesel Shotgun19's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    Posts
    2,111

    Default

    Quote Originally Posted by DuaneHTP View Post
    If you do need an inducer, we have a new one on the market That blows the orig one away.
    With no mods done to it.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Owner/Crew Chief 1/4 Miler's Avatar
    Join Date
    Dec 2007
    Location
    Rural Missouri
    Posts
    443

    Default

    Quote Originally Posted by DuaneHTP View Post
    ..... we have a new one on the market That blows the orig one away.

  7. #5
    Senior Member PCE680's Avatar
    Join Date
    Jan 2008
    Location
    Manhattan Beach,CA / LHC,AZ
    Posts
    1,793

    Default

    Quote Originally Posted by DuaneHTP View Post
    If your pump is in good shape and still cavitatiing out of the hole it would help. They do not hurt the top end, but the larger impeller for effeciency also helps the hole shot a lot. So if leaning towards a larger impeller, I'd try it first. It may be all that you need. If you do need an inducer, we have a new one on the market That blows the orig one away.
    Is the new inducer the one that Henry back in Delaware is making ???

  8. #6
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    Quote Originally Posted by PCE680 View Post
    Is the new inducer the one that Henry back in Delaware is making ???
    now ya can't pop off something like that and not say more, do tell

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  9. #7
    Resident Ford Nut Sleeper CP's Avatar
    Join Date
    Dec 2007
    Location
    San Diego County
    Posts
    10,072

    Default

    Quote Originally Posted by IMPATIENT 1 View Post
    now ya can't pop off something like that and not say more, do tell
    Damn guys anyway

    " Blows the original away " ???? Pictures ?

    S CP

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

  10. #8
    Senior Member DuaneHTP's Avatar
    Join Date
    Dec 2007
    Location
    Shell Knob, MO
    Posts
    1,379

    Default

    My wording was bad. I should have said we're going to have the new one soon. We'll keep you informed. We hope to finish testing in a week or so. This kind of stuff takes for ever to produce.

    I did some testing on Henery's inducer, and it works good. I sent him the first data results, but have not heard back from him since. We ran it in 4 different boats and 4 different HP ranges and recorded all runs. 3 in each boat. Results were positive.

  11. #9
    Owner/Crew Chief 1/4 Miler's Avatar
    Join Date
    Dec 2007
    Location
    Rural Missouri
    Posts
    443

    Default

    Other than the original Don Bowers' inducer, I'm only aware of two other's that are made ... Kimball's CnC'd version and the cast one the Henry & Jack McClure have come up with here recently.

  12. #10
    Senior Member cave's Avatar
    Join Date
    Dec 2007
    Location
    Mesa, AZ
    Posts
    4,704

    Default

    Duane, adding an inducer will not rob the top end? I was thinking of adding one and past up a good deal on a cnc version. Don't know who's making it but I passed because I didn't want to loose any top end performance.

    Anyone running them in a 21 Daytona or Daytona splash have any info regarding top end performance ?
    Takin it home

  13. #11
    Resident Ford Nut Sleeper CP's Avatar
    Join Date
    Dec 2007
    Location
    San Diego County
    Posts
    10,072

    Default

    Quote Originally Posted by slim pickens View Post
    Does an inducer affect the horsepower requirements of an impeller? Or does it only affect low RPM power and have little to do with top end?
    My boat is a pretty heavy lake cruiser, so I take it an inducer would help get out of the hole but also let me "get away" with a fatter impeller for efficiency? I still have a 455 olds so I have torque but need to keep the rpm low/reasonable.

    Slim what pump and impeller do you run ? I've been told depending on the boat that an inducer can cost you a few mph on the top end, but will get you out of the whole much quicker. It's a trade off.

    If I had the time I'd sure like to run our boat with and with-out to see, every boat is different. With the inducer in it won't hold back a flat foot from a dig but I can roll it over and bury it and it just flashes before it grabs. ( 765 lbs. ft trq on the dyno at 6,000 or 875 HP )


    S CP

    Big Inch Ford Lover

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

  14. #12
    Senior Member bp298's Avatar
    Join Date
    Dec 2007
    Location
    LHC
    Posts
    6,571

    Default

    Quote Originally Posted by IMPATIENT 1 View Post
    now ya can't pop off something like that and not say more, do tell
    known henry for about 9 years now. just a guy from delaware that owns a bunch of jets, some of 'em fast, one of 'em with a gas turbine. he usually comes out to the firebird opener and wf's to hang out. some years, races his daytona at augusta - probably will be at hipoint this year.
    henry has always come up with different ideas with many parts, and has the ability to run his ideas into production if he chooses. he showed me his inducer idea at the opener this year - there are subtle differences between his and the old dps.

    but... i've been running an mpd blueprinted dps cavitation reducer for 12 years now, it works, so i see no reason to change.

  15. #13
    Owner/Crew Chief 1/4 Miler's Avatar
    Join Date
    Dec 2007
    Location
    Rural Missouri
    Posts
    443

    Default

    Quote Originally Posted by 1/4 Miler View Post
    Other than the original Don Bowers' inducer, I'm only aware of two other's that are made ... Kimball's CnC'd version and the cast one the Henry & Jack McClure have come up with here recently.
    In addition to what I said above, I am aware of a current R&D project that is directed at coming up with a device (not an inducer as the design concepts being used are very different than that of inducers) that will load an impeller more efficiently throughout the 1/4 Mile.

    Currently two devices, one a 'Sportsman' version, the other a 'Pro-Boat' device are in the final stages of fabrication and I'm told that initial testing and refinement of the sportsman version should begin here in the very near future. Note that testing and refinement of the sportsman device could take some time as what's being crafted is very different than has been done before and care must be taken.

    Testing etc. of the pro-boat device will take a considerable bit longer as the device being made is for a particular impeller of a particular 1/4 mile boat that is currently being modified which takes time and care.

    Knowing the people involved in this project, I'm sure that if at least the sportsman device shows significantly positive results and can be made and sold at a reasonable price, then they may well be made available to others via one very reputable source. Additionally, if the final results of testing and development work show no significant gains, then I'm sure the pieces will become 'Shop Art' and nothing more will be said about them.

    As to the ultimate availability of the 'Pro-Boat' Device (if it proves itself) to others than the team that has designed the piece and is funding the project ....... at this point, I don't know the answer as it's totally up to the race team's owners.

    I'll pass on more about the project as is appropriate .....

    Jak

  16. #14
    Senior Member
    Join Date
    Apr 2009
    Location
    SW Ohio
    Posts
    201

    Default

    Quote Originally Posted by Sleeper CP View Post
    Slim what pump and impeller do you run ? I've been told depending on the boat that an inducer can cost you a few mph on the top end, but will get you out of the whole much quicker. It's a trade off.

    If I had the time I'd sure like to run our boat with and with-out to see, every boat is different. With the inducer in it won't hold back a flat foot from a dig but I can roll it over and bury it and it just flashes before it grabs. ( 765 lbs. ft trq on the dyno at 6,000 or 875 HP )


    S CP

    Big Inch Ford Lover
    S CP,
    I have a box stock C pump with an A impeller. Wear condition is unknown. I also picked up a rebuilt C pump with an AB. I am going to see how it goes with the A before I do anything.

    For power I am currently have a very mild 455 with J heads, also have a little more power in a fresh 455 with K heads and cam. I am waiting till end of season to put in the fresh engine. I may sell it and build something hairy over the winter though.

+ Reply to Thread

Quick Reply Quick Reply

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.

Please select your insurance company (Optional)

Log-in


Tags for this Thread

Digg This Thread

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 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95