Like Tree0Likes

38 fountain 496 x dimension

Reply
Old 10-09-2005, 08:35 PM
  #1
Registered
Thread Starter
 
Join Date: Sep 2005
Posts: 12
Default 38 fountain 496 x dimension

I have a 38 fountain that had 496 ho in it. I re-powered with 635hp boat only runs 84mph anyone know if the x is different on the 496 boat then the same with 525??
Thanks Simon Sez
simon sez is offline  
Reply With Quote
Old 10-09-2005, 08:49 PM
  #2
Registered
VIP Member
 
nolimits's Avatar
 
Join Date: Jan 2004
Location: Babylon, Long Island
My Boats: 03, Fountain 38 Lightning
Posts: 804
Default Re: 38 fountain 496 x dimension

Year of boat?
nolimits is offline  
Reply With Quote
Old 10-09-2005, 08:56 PM
  #3
VIP Member
VIP Member
 
1stfntn's Avatar
 
Join Date: Oct 2003
Location: Round Rock, TX
My Boats: 2000 38' Fountain Lightning
Posts: 166
Default Re: 38 fountain 496 x dimension

Simon,

Hope you and Mel are doing well. I can check my 2000 38' next time I'm up at the like (lake season is pretty much over up here in OK). It came with HP 500's, so I would assume it's similar to a 525 setup. Remind me, are you staggered or side by side? Mine's side by side. Tell Deluca hey for me next time you see the old man (hated missing his Bday party). Take care.

Brad
1stfntn is offline  
Reply With Quote
Old 10-10-2005, 06:57 PM
  #4
Registered
Thread Starter
 
Join Date: Sep 2005
Posts: 12
Default Re: 38 fountain 496 x dimension

its a 2003 staggard boat ran 73 with 496 1.65 gear
32 prop. changed to xr 1.50 same prop now runs 84
should be allot faster got my but kicked by stock 525
in same boat .
simon sez is offline  
Reply With Quote
Old 10-10-2005, 07:00 PM
  #5
Registered
Trade Score: (2)
 
TxHawk's Avatar
 
Join Date: Mar 2003
Location: Dallas
My Boats: Excalibur 27 Flat Deck Restomod
Posts: 2,940
Default Re: 38 fountain 496 x dimension

Have you figured the slip % ?
TxHawk is offline  
Reply With Quote
Old 10-10-2005, 07:04 PM
  #6
Registered
 
hillbilly24's Avatar
 
Join Date: Oct 2004
Posts: 1,358
Default Re: 38 fountain 496 x dimension

What RPM are you reaching?
hillbilly24 is offline  
Reply With Quote
Old 10-10-2005, 07:50 PM
  #7
Registered
Thread Starter
 
Join Date: Sep 2005
Posts: 12
Default Re: 38 fountain 496 x dimension

5200
rev limit set at 5800 just not getting it done.
same boat with 525 and 32 p is getting 5400 89mph
Thats why I am curios about the x dimensions.

My motors make 700 ft pounds of torque at 5000
simon sez is offline  
Reply With Quote
Old 10-10-2005, 08:57 PM
  #8
VIP Member
VIP Member
 
1stfntn's Avatar
 
Join Date: Oct 2003
Location: Round Rock, TX
My Boats: 2000 38' Fountain Lightning
Posts: 166
Default Re: 38 fountain 496 x dimension

I'm running just over 80 on GPS with the "small stepped hull" and around 550hp per side from my modified HP 500's. 1.50 Bravo I's with 26P Hydros turning in (not labbed) at 5,350 (on the limiters). I think you have too much prop. Have you tried a pair of 30's or 29's? What RPM did your max HP come at?
1stfntn is offline  
Reply With Quote
Old 10-10-2005, 09:13 PM
  #9
Charter Member # 545
Gold Member
 
Beak Boater's Avatar
 
Join Date: Dec 2000
Location: Port Tobacco MD/Cape Coral Fl
Posts: 2,151
Default Re: 38 fountain 496 x dimension

Quote:
Originally Posted by simon sez
its a 2003 staggard boat ran 73 with 496 1.65 gear
32 prop. changed to xr 1.50 same prop now runs 84
should be allot faster got my but kicked by stock 525
in same boat .
According to the numbers you quoted your slip is 20%. Thats unusually high. Should be around 10%. Did anyone ever work those props for you? Something is not right.
Beak Boater is offline  
Reply With Quote
Old 10-10-2005, 09:45 PM
  #10
Ed
Gold Member
Gold Member
 
Join Date: Oct 2000
Location: Ft.Lauderdale, Fl.
Posts: 798
Thumbs up Re: 38 fountain 496 x dimension

Both motors dyno the same? Do both motors sound synchronized at higher r.p.m.'s? Did you set/check your toe-in or toe-out properly? Are both props a matched set & been checked for trueness? Are you on the rev-limiter(s)? Don't ignore the basics. Ed
Ed is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TeamPSI
General Q & A
23
12-10-2007 06:23 PM
KCHOTBOAT
Prop Talk
2
07-06-2006 09:45 AM
375stinger
Prop Talk
8
12-06-2005 07:12 PM
Active Mike
General Q & A
9
11-11-2005 01:26 AM
bn
General Q & A
4
01-15-2005 08:40 AM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 01:13 PM.


Copyright 2011 OffShoreOnly. All rights reserved.