Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
Questions about a 2005 575SCI >

Questions about a 2005 575SCI

Like Tree0Likes

Questions about a 2005 575SCI

Reply

Old 11-09-2012, 10:13 AM
  #1
Registered
Thread Starter
 
richsformula's Avatar
 
Join Date: Mar 2006
Location: Westfield, New Jersey
My Boat: 1998 Formula 271
Posts: 45
Default Questions about a 2005 575SCI

Unfortunately my boat was lost to Sandy. Good news is I insured it for agreed value. I've identified a potential replacement. It has a 2005 Mercury Racing 575 SCI with 67 hours on it. What can you tell me about reliability on this engine and if I do buy it any preventative maintenance you'd suggest. Thanks for helping

Rich
richsformula is offline  
Reply With Quote
Old 11-09-2012, 10:20 AM
  #2
New co. name B.A. Design
Platinum Member
 
mcprodesign's Avatar
 
Join Date: Jan 2008
Location: San Diego
My Boat: '00 38 Fountain
Posts: 2,349
Default

Originally Posted by richsformula View Post
Unfortunately my boat was lost to Sandy. Good news is I insured it for agreed value. I've identified a potential replacement. It has a 2005 Mercury Racing 575 SCI with 67 hours on it. What can you tell me about reliability on this engine and if I do buy it any preventative maintenance you'd suggest. Thanks for helping

Rich
Great motor. Blower parts can be hard to find. I have 2004's. Also see if the thermostat housings have been replaced. I heard that they have been a problem
mcprodesign is offline  
Reply With Quote
Old 11-09-2012, 11:28 AM
  #3
Registered
 
Join Date: Feb 2006
Location: Tallahassee, FL
My Boat: 1987 Donzi 22; 2008 Donzi 28 ZXO
Posts: 1,655
Default

superchargers on this engine sound like a PITA. requires premium fuel. Makes roughly the same power as a 525 EFI. (the 525 is underrated while the 575 is rated at 550).

Also... The blower is noisy

If it were me I'd probably go for a 525 if you are looking in that power range unless it's a good deal.
VetteLT193 is offline  
Reply With Quote
Old 11-09-2012, 11:33 AM
  #4
Registered
 
1 MAIDEN AMERICA's Avatar
 
Join Date: Aug 2006
Location: Renton, Wa
My Boat: 02 38 Lightning 575SCi SCX-4
Posts: 949
Default

Originally Posted by mcprodesign View Post
Great motor. Blower parts can be hard to find. I have 2004's. Also see if the thermostat housings have been replaced. I heard that they have been a problem
I've got 2 complete blowers I'd sell
1 MAIDEN AMERICA is offline  
Reply With Quote
Old 11-09-2012, 04:33 PM
  #5
Registered
 
Join Date: Aug 2012
Location: TRL
Posts: 509
Default

I love my 575s. Send the blowers off to be safe and have checked at least, if not rebuilt. Change the head gaskets ASAP!

I would rather have a noisy blower, than have my boat sound like a volvo penta, but that is just me. I love the blower whine on mine.

They can handle 700hp all day if set up correctly. I was skeptical buying them, but now that mine are tuned correctly, they run like a full EFI set up!

525s are great engines also. The 575s have more potential if you want more power out of them. Stock for stock I would go with the 525s.
keegan is offline  
Reply With Quote
Old 11-09-2012, 05:15 PM
  #6
VIP Member
VIP Member
 
Join Date: Nov 2002
Location: ankeny,ia.
Posts: 3,515
Default

Originally Posted by keegan View Post
i love my 575s. Send the blowers off to be safe and have checked at least, if not rebuilt. Change the head gaskets asap!

I would rather have a noisy blower, than have my boat sound like a volvo penta, but that is just me. I love the blower whine on mine.

They can handle 700hp all day if set up correctly. I was skeptical buying them, but now that mine are tuned correctly, they run like a full efi set up!

525s are great engines also. The 575s have more potential if you want more power out of them. Stock for stock i would go with the 525s.
+1
JaayTeee is offline  
Reply With Quote
Old 11-09-2012, 07:26 PM
  #7
Registered
 
Join Date: Sep 2002
Location: Manhasset, NY
My Boat: Sonic 358 Diablo
Posts: 1,943
Default

I love my 575's......do a search here on oso, lots of great info on them. Like has been said before have blowers checked, and do head gaskets.
Here's Johnny is offline  
Reply With Quote
Old 11-09-2012, 07:31 PM
  #8
Platinum Member
Platinum Member
 
NWPC's Avatar
 
Join Date: May 2006
Location: Entiat, Washington
My Boat: Adrenaline V24 Avalon Pontoon Air Natique
Posts: 205
Default

Love my 575sci. Anybody who says they would rather have a 525 has never ran with one. No comparison to low and mid range power.
NWPC is offline  
Reply With Quote
Old 11-09-2012, 07:59 PM
  #9
Registered
 
Join Date: Sep 2002
Location: Manhasset, NY
My Boat: Sonic 358 Diablo
Posts: 1,943
Default

Originally Posted by nwpc View Post
love my 575sci. Anybody who says they would rather have a 525 has never ran with one. No comparison to low and mid range power.
x2
Here's Johnny is offline  
Reply With Quote
Old 11-10-2012, 08:27 AM
  #10
Registered
 
kjm5125's Avatar
 
Join Date: Feb 2006
Location: Sandusky/Olmsted Falls, OH
My Boat: Formula-2004, 382 Fastech w/Arneson Surface Drives
Posts: 664
Default

Very strong bottom end and can easily handle 700hp. The blower parts are hard to come by, but if maintained properly, they will last.

They run fine on 89 octane.
kjm5125 is offline  
Reply With Quote

OSO Sponsor
OSO Advertiser
OSO Advertiser
OSO Advertiser