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525 efi or 575 sc

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Old 03-04-2011, 10:26 AM
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Default 525 efi or 575 sc

Looking for the pros and cons of each. Maintenance schedules ect...
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Old 03-04-2011, 10:33 AM
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I had 575's in my 38 Formula! details 2 long but BAD, BAD!
Trip 525's in my NT!!! GOOD,GOOD!!!!!
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Old 03-04-2011, 11:21 AM
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From what I understand the 525 makes as much horse power as the 575 and no super charger to maintain. The 525 would be my pick!
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Old 03-04-2011, 11:44 AM
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Quote:
Originally Posted by wrinkleface View Post
I had 575's in my 38 Formula! details 2 long but BAD, BAD!
Trip 525's in my NT!!! GOOD,GOOD!!!!!
I heard the problem with your Formula was a short between the steering wheel and the drivers seat
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Old 03-04-2011, 11:48 AM
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try this thread I started...
http://www.offshoreonly.com/forums/g...nance-etc.html
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Old 03-04-2011, 04:00 PM
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Since Merc has built two different 575's, you need to confirm which one you are asking about.

I am pretty sure the older 575 is only rated at 525 hp at the prop and would need 92 octane while the 525 is rated for 525 hp at the prop and only needs 87 octane and does not have a supercharger. The choice between those two engines would be pretty simple in my opinion.

Now the newer 575, I will defer to others on that one, but I would think that is would be rated for 575 hp at the prop. (I would still go with the 525).
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Old 03-04-2011, 06:07 PM
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My 575sci's are rated at 550hp at the prop.....yes they are a little more work then a 525 because of the blower......but if I am not mistaken the torque on the 575sci is much greater.....and besides, isn't the blower whine worth the extra headache.....? "Winning"
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Old 03-05-2011, 01:13 AM
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575s are cooler looking and would be my choice...
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Old 03-05-2011, 05:22 AM
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aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhh
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Old 03-05-2011, 05:54 AM
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Loved my 575's.......yes the whinning is cool at WOT.
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