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Questions about a 2005 575SCI

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Old 11-09-2012, 11:13 AM
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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
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Old 11-09-2012, 11:20 AM
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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
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Old 11-09-2012, 12:28 PM
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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.
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Old 11-09-2012, 12:33 PM
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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
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Old 11-09-2012, 05:33 PM
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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.
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Old 11-09-2012, 06:15 PM
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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.
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Old 11-09-2012, 08:26 PM
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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.
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Old 11-09-2012, 08:31 PM
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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.
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Old 11-09-2012, 08:59 PM
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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
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Old 11-10-2012, 09:27 AM
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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.
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