Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12

Thread: 15/20 Mph

  1. #1
    MANNY R's Avatar
    Join Date
    May 2006
    Location
    MIA, FL
    Posts
    51

    15/20 Mph

    What mph are you guys seeing with the 15/20 out of the box, not repitched, not Rivas 15/20R , just out of the box and in?

    Also at what rpm and what type of modification on the hull do you have?
    Example: Filed ride plate holes, trued hull, skegs.......

    Thanks guys


  2. #2

    Join Date
    Jan 2006
    Location
    Rydal, Georgia U S A
    Posts
    3,936
    +1
    14
    78 mph Depending on drag...

  3. #3

    Join Date
    Jan 2006
    Location
    Puerto Rico
    Posts
    691
    Today my buddy moded RXP ran 79 MPH @ 8450 peak rpms in 93 deg weather, but his solas 15/20R prop is not stock, it was tweaked by Jerry (GH)

  4. #4

    Join Date
    Jun 2006
    Location
    Highland lake , CT
    Posts
    161
    Are they motor mods or just bolt on mods? 79 thats sweet

  5. #5
    suck my wake's Avatar
    Join Date
    Apr 2006
    Location
    Sugar Grove IL
    Posts
    2,872
    +1
    12
    06 RXP with riva stage II and out of the box 15/20, 77-78 @ 8140

  6. #6

    Join Date
    Jan 2006
    Location
    Puerto Rico
    Posts
    691
    Quote Originally Posted by ULozer
    Are they motor mods or just bolt on mods? 79 thats sweet
    Only bolt on mods, stock, short block,cam, head, nozzle, waterbox etc...
    Last edited by GPR/STX-15F/RXT; 07-01-2006 at 08:12 AM.

  7. #7

    Join Date
    Jun 2006
    Location
    Highland lake , CT
    Posts
    161
    WILD ,I have a 2006 stage 1 RR/ stock sc wheel / jerry's external mods /waterbox/ 14/19 1mm in trailing 8300 rpms, 74.9 gps / tried the 15/20r and it hated it, 8050 rpms ,I have a rr sc wheel coming as we speek ,is that going to wake it up to run a 15/20??? looking for 77-78 mph...

  8. #8
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    ULozer, you need to send that 15/20 off to me for my magic touch. I'll get you at 8400 RPM's and you should be running 76-77

  9. #9
    im turning a 15/20 out of the box 8300 but have seen 8400 in colder water. yes it does flicker up to 8360 but it always turns it 8300 and best speed is 79mph. now jerry told me to bend the prop up a little so i can get thso rpms back.

    Question. I am doing this with stock nozzle i want to run a 82mm shold i bend it alot for that. my stock nozz is 83.5 thats why such rpms but jerry is right you need the r's to get the mph up.

  10. #10

    Join Date
    Jul 2005
    Location
    Powhatan, VA
    Posts
    281
    I was at Lake Anna Friday and my best was 8200 rpm at 71.8 mph.
    I have ordered the new RR Supercharger impeller, Riva Titanium valve spring retainers and RR 42# fuel injectors. My boost has been 6.3 at idle and 6.8 at wide open throttle. Im looking to pick up those other 400 rpms on that RR race ECU. Would a prop change help or should I just have my venturi nozzle done for different ring sizes?

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. I tested the 15/20 today (again)
    By Green Hulk in forum 4-Tec Performance
    Replies: 22
    Last Post: 02-05-2006, 02:10 PM
  2. SOLAS 14/19 versus 15/20
    By Red Devil in forum 4-Tec Performance
    Replies: 3
    Last Post: 11-03-2005, 09:48 AM
  3. Thanks Jerry! --Jerry's repitch on my 15/20 solas....
    By VFX_Artist in forum 4-Tec Performance
    Replies: 8
    Last Post: 11-01-2005, 11:07 AM
  4. I just tested my stock ECU with the 15/20
    By Green Hulk in forum 4-Tec Performance
    Replies: 15
    Last Post: 08-22-2005, 03:49 PM
  5. Solas 15/20 impeller
    By rx4pain in forum 4-Tec Performance
    Replies: 6
    Last Post: 06-14-2005, 03:42 PM

Posting Permissions

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