HAS 828- You E me
+ Reply to Thread
Page 1 of 6 1 2 3 4 ... LastLast
Results 1 to 14 of 72

Thread:
HAS 828- You E me

  1. #1
    Senior Member
    Join Date
    Jan 2008
    Posts
    419

    Default HAS 828- You E me

    You Ed me and I tryed to respond -it was a no go.

    In public - If you are turning 7000 on a AA I would assume you are in the 1,000 HP club a little under what that HP is.
    If you go to our AA you are going to drop some 400Rs. Not what you want.

    So lets take what I said as I said it. Blown Gas our Impeller is worth 6-9 MPH and ET Cut.

    Combination of Impeller and Bowl in that Class is 10 to 16 MPH. @ 7200 to 7400 in our A cut is 135 to 145 NJBA and 130 to 136 In IHBA.

    OK- I do not Recommend you change more then 1 item at a time on a established runner system such as yours.
    So #1 Change the Impeller to our AA that should hit you around 400 Rs drop ( you may have some torque at that number yet). Then we establish a cut. The class runners in Blown Gas (Bigger #s Nelson, Harris,Bruce, Nagore,Etc -Frank was running bigger on the fuel boat) were running a A or a very minor cut to the A. Something we ran into on the set ups was more water being demanded by the impeller. The Impeller will show you a Increase MPH and Decrease in ET. Yet some amount will go to overstuff in the bowl which is somewhat lossed. Remember the Combination of Impeller and Bowl is capable of putting out 400 to 500 GPM above what you have ran. Insert (Choke) Change will most often be changed to larger Dia. also.

    So I will Back the Impeller should you not like it and buy it back. We do any cuts. OK

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member
    Join Date
    Jan 2008
    Posts
    419

    Default

    Call me if thats fair

  4. #3
    Senior Member Hass828's Avatar
    Join Date
    Dec 2007
    Location
    okie, lake Texoma
    Posts
    6,278

    Default

    Quote Originally Posted by [email protected] View Post
    You Ed me and I tryed to respond -it was a no go.

    In public - If you are turning 7000 on a AA I would assume you are in the 1,000 HP club a little under what that HP is.
    If you go to our AA you are going to drop some 400Rs. Not what you want.

    So lets take what I said as I said it. Blown Gas our Impeller is worth 6-9 MPH and ET Cut.

    Combination of Impeller and Bowl in that Class is 10 to 16 MPH. @ 7200 to 7400 in our A cut is 135 to 145 NJBA and 130 to 136 In IHBA.

    OK- I do not Recommend you change more then 1 item at a time on a established runner system such as yours.
    So #1 Change the Impeller to our AA that should hit you around 400 Rs drop ( you may have some torque at that number yet). Then we establish a cut. The class runners in Blown Gas (Bigger #s Nelson, Harris,Bruce, Nagore,Etc -Frank was running bigger on the fuel boat) were running a A or a very minor cut to the A. Something we ran into on the set ups was more water being demanded by the impeller. The Impeller will show you a Increase MPH and Decrease in ET. Yet some amount will go to overstuff in the bowl which is somewhat lossed. Remember the Combination of Impeller and Bowl is capable of putting out 400 to 500 GPM above what you have ran. Insert (Choke) Change will most often be changed to larger Dia. also.

    So I will Back the Impeller should you not like it and buy it back. We do any cuts. OK
    OK,
    You cant get much more honest than this !! I believe that I'm going to give this mans product a try.
    Thanks Dave

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    so if someone was runnin a small ftn and switched to the aggressor 9 vane, the nozzle will need to get bigger?

  7. #5
    Senior Member
    Join Date
    Jan 2008
    Posts
    419

    Default

    Quote Originally Posted by IMPATIENT 1 View Post
    so if someone was runnin a small ftn and switched to the aggressor 9 vane, the nozzle will need to get bigger?
    Please understand our impeller has the highest flow volumn rate with no cavatation. The volumn rate of the Impeller was the basis of flow output on the 9 Vane Bowl. As a example: The 9 Vane has a flow Rate some 54 CFM over a berkeley. The Impeller is 32CFM @ static rotation over a berk. The 2 are somewhat matched to produce a increase of 85 GPM up to the Highest we have seen of 495 GPM @ 2,000 HP.(Dan Nelsons Blown Gas Edge).

    So what I am saying is the Impeller is your first point of attack (Biggest Bang for the Buck over any change you can make on motor or anything. It also is the biggest change out of all to the unit. Example well proven on stock application was 2-3 MPH and always a ET decrease, and generally @ a RPM decrease also.

    OK so the Impeller is covered-However in his case he is way above stock application. He is running a pre-loader which should over produce the load however he also could see a drop in intake pressure, Untill you match up apples and apples you have no base line to go by.

    The Impeller will provide him a net increase in volumn flow which will over tax the bowl in output yet show overall improvement in the unit. Then he would go after the bowl increase which again may affect his setup. He always has his baseline on Loader, Intake pressure, Impeller & cut, Insert, RPMs, etc. and never looses control on setup. Step by Step. We worked with a Record Holder on un-blown fuel one time and he would throw 3 changes at a time to his unit, motor, pump fuel. until he losed control of his Speed/Time and never got back to his record numbers. In the end it tossed him out broke his collerbone and he retired. 1 @ a time,.

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

    Default

    makes sense to me, thanx for explaination pops.

  9. #7
    SLOW MEMBER slowboy's Avatar
    Join Date
    Jun 2008
    Location
    Duluth, MN
    Posts
    470

    Default

    That is really some good info. Thanks, Ryan
    WORK HARDER, MILLIONS ON WELFARE DEPEND ON YOU.

  10. #8
    Senior Member
    Join Date
    Jan 2008
    Posts
    419

    Default

    Quote Originally Posted by IMPATIENT 1 View Post
    so if someone was runnin a small ftn and switched to the aggressor 9 vane, the nozzle will need to get bigger?
    You must give consideration to your cut (Assumes Aggressor Impeller)Yes as a general rule. We set up stock @3.125 a good overall. However some will run a 3.090 - For a faster MPH and maintain Head Pressure. Remember on Race Boats Head pressure is used as a lifting body and is so very critical to them. Say a Stock application may see 12 to 25 pounds. Most of the Racers are running 45 and up. and should set there pop off at 95-100 max or trouble can be waiting.
    I do think some day we will learn how to lower that as 0 pounds would be the optimum with a high bowl pressure and volumn= higher MPH (No Negative Drag within the Intake/Suction). I am seeing some guys are getting away with lower pressure now, and I thnk thats the way to go IF you can. Understand on some of these boats a 1/32 could blow them over, thats how tight there setup is. The Insert plays a key role in this. Remember the Larger the insert you can run the higher the thrust the quicker you can go (Dan told me he was running a 3.285 or larger in his). The cut also plays a big key in the insert as when you cut a Impeller you are opening up the backside of the Impeller at its release point. This make the Impeller start to loose its frontal draft, reduces the inside pressure within the Impeller and the sling at the thrust point is further away from the bowl. It allows the motor to turn up higher Rs by sliding past the lower torque motors. It will Boost Bowl and in the long run turn out some high thrust, its just so much slower to get to MPH. Jointly a smaller Insert will be ran in a lot of these cases. Next the 11 Vane Bowl- 52CFM over the 9 Vane Bowl. Then you go to the JR Dual which produces over1 1/2 time the thrust of our Pro Drive on 7 1/2" Impellers vs 9" Impeller. There is a long way to go yet.

  11. #9
    SLOW MEMBER slowboy's Avatar
    Join Date
    Jun 2008
    Location
    Duluth, MN
    Posts
    470

    Default

    Ok, does this make sense to what is explained above.

    I have a 3.00 nozzle in my pump, I tested it ran 80 plus at 5900 rmps. Intake pressure was around 25-30 psi. I then removed the insert, making the opening up to 3.125 which was stock. I noticed it took much longer to reach top speed, turned the same mph and rpms, and my intake pressure dropped to 15 psi.

    Performance seemed better with the smaller nozzle.
    WORK HARDER, MILLIONS ON WELFARE DEPEND ON YOU.

  12. #10
    Senior Member Hass828's Avatar
    Join Date
    Dec 2007
    Location
    okie, lake Texoma
    Posts
    6,278

    Default

    Quote Originally Posted by slowboy View Post
    Ok, does this make sense to what is explained above.

    I have a 3.00 nozzle in my pump, I tested it ran 80 plus at 5900 rmps. Intake pressure was around 25-30 psi. I then removed the insert, making the opening up to 3.125 which was stock. I noticed it took much longer to reach top speed, turned the same mph and rpms, and my intake pressure dropped to 15 psi.

    Performance seemed better with the smaller nozzle.
    sounds like to much of a change , lost velocity, should have went to 3.060
    I'm no expert here though so let hear what Pops has to say.

  13. #11
    Highaboosta Unchained's Avatar
    Join Date
    Dec 2007
    Location
    Ada, Michigan
    Posts
    3,431

    Default

    Quote Originally Posted by [email protected] View Post
    Remember on Race Boats Head pressure is used as a lifting body and is so very critical to them. Say a Stock application may see 12 to 25 pounds. Most of the Racers are running 45 and up. and should set there pop off at 95-100 max or trouble can be waiting.
    I do think some day we will learn how to lower that as 0 pounds would be the optimum with a high bowl pressure and volumn= higher MPH (No Negative Drag within the Intake/Suction). I am seeing some guys are getting away with lower pressure now, and I thnk thats the way to go IF you can. . There is a long way to go yet.
    This all makes sense to me and was my conclusion also from the years I ran jet boats.

    I remember discussing this in HB years ago and when I mentioned that overcharging the intake was being used to lift the hull you would have thought I was insulting someone's mother. The haters came out in droves.

    Also the drag caused by overcharging the intake was discussed and that was another hot button issue.
    IMO any intake pressure above 0 is causing drag.
    To build pressure it takes energy and it has to come from somewhere.

    Twin Turbo 1800 HP V-Drive lake boat

    http://s621.photobucket.com/albums/t...t=MAH05771.mp4

    Quote Originally Posted by Trigger View Post
    No one cares about your buddies old antiquated garden hose technology.
    Quote Originally Posted by MAXIMUS View Post
    I think I could run more boost but it's a real hand full right now

  14. #12
    Senior Member Hass828's Avatar
    Join Date
    Dec 2007
    Location
    okie, lake Texoma
    Posts
    6,278

    Default

    Sorry mark but I just have to ask 'em,
    So Pops , speaking theoreticaly ,if you were to lift the boat with the intake duct that we spoke about, just how low of intake pressure do you think a real world jet could get away with at 115-120mph+ and still stay fully loaded?
    10-15psi? 15-20? or hell 5-10psi?
    Do you think on smooth water with the proper pump setup that you could approach single digit territory?

  15. #13
    SLOW MEMBER slowboy's Avatar
    Join Date
    Jun 2008
    Location
    Duluth, MN
    Posts
    470

    Default

    Quote Originally Posted by Hass828 View Post
    sounds like to much of a change , lost velocity, should have went to 3.060
    I'm no expert here though so let hear what Pops has to say.

    I have other nozzles, but was looking for a drastic change. I was suprised not to have one, except for the intake pressure, and slower acceleration.

    I thought for sure a difference would have been seen with MPH. Sure is interesting.
    WORK HARDER, MILLIONS ON WELFARE DEPEND ON YOU.

  16. #14
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    hearing some of this has me excited bout my next trip out. my opeing was 3.25 and i just choked it down to 3.125. maybe it'll pick it up quite a bit

    hass, noone could center the nozzle to bore it, so billy built me a badass insert outta brass, it transitions smoother than the p.d. ftn , he pressed it in, then i took it home and pinned it, polished the inside of the nozzle, should work great.if he gets his shaft keyed today, we're gonna go out this evening or tommorrow, see wtf we're carry'n to bb
    Last edited by IMPATIENT 1; 08-28-2008 at 07:45 AM.

+ Reply to Thread
Page 1 of 6 1 2 3 4 ... LastLast

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


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