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-   -   Mercury HP1025/1200SCI (https://www.offshoreonly.com/forums/general-boating-discussion/246915-mercury-hp1025-1200sci.html)

PokerRun388 02-02-2011 10:02 PM

Mercury HP1025/1200SCI
 
Hey,, Ive noticed the engine always says 1025/1200,,, but was wondering what has to be done to lower the HP rating...

Is this something that can be done easily? or are the other steps, such as changing the pulleys, that needs to be done...

Anyone know? ....:grinser010:

omerta one 02-02-2011 11:11 PM


Originally Posted by PokerRun388 (Post 3314685)
Hey,, Ive noticed the engine always says 1025/1200,,, but was wondering what has to be done to lower the HP rating...

Is this something that can be done easily? or are the other steps, such as changing the pulleys, that needs to be done...

Anyone know? ....:grinser010:

There are 2 ECM's unplug from one and plug into the other; 1200HP requires race gas.

Catmando 02-02-2011 11:32 PM


Originally Posted by omerta one (Post 3314715)
...1200HP requires race gas.

I don't understand why they did that with so many 1200+ motors in the marketplace that can use 93 octane.

GLH 02-02-2011 11:44 PM


Originally Posted by Catmando (Post 3314723)
I don't understand why they did that with so many 1200+ motors in the marketplace that can use 93 octane.

No 1200hp motors can use 93 Cat....

GLH 02-02-2011 11:45 PM

...for more than 10 minutes...

jeff1000man 02-03-2011 12:18 AM


Originally Posted by GLH (Post 3314729)
No 1200hp motors can use 93 Cat....

They would have to be awefully big cubes and bigger blowers. :coolcowboy:

DMOORE 02-03-2011 12:25 AM


Originally Posted by jeff1000man (Post 3314739)
They would have to be awefully big cubes and bigger blowers. :coolcowboy:



Or........ just a couple of nice turbos!!!!!!!!!!!!




Darrell.

Whipple Charged 02-03-2011 01:11 AM


Originally Posted by GLH (Post 3314729)
No 1200hp motors can use 93 Cat....

Hmm, thats very untrue. Just installing 2.9L sc's in replace of the 2.3, slowing the SC's down, same max boost level equals over 1200hp and will pass any durability test Merc could throw at it. Just lowering power consumption and temp, free power.

The Merc 1075 engines don't even have CNC ported heads and really are nothing special. 1200hp has been pretty easy to reach on 91 octane for quite some time.

GLH 02-03-2011 04:32 AM


Originally Posted by Whipple Charged (Post 3314751)
Hmm, thats very untrue. Just installing 2.9L sc's in replace of the 2.3, slowing the SC's down, same max boost level equals over 1200hp and will pass any durability test Merc could throw at it. Just lowering power consumption and temp, free power.

The Merc 1075 engines don't even have CNC ported heads and really are nothing special. 1200hp has been pretty easy to reach on 91 octane for quite some time.

91 is still just as hard to find on the water as 93 and if I have to pull out to fuel I'm going to put 93 in order to be on the safe side. I don't think the 5 cent saving once on the trailer is worth the risk.

And I would not run 91 in my 1050 engines if I can help it never mind if I had anything that pumped out 1200hp. But that's just me.

SS930 02-03-2011 06:43 AM

It sounds like Mini-Hawk's question was aready answered, but I have to agree with Dustin that 1200 isn't all that uncommon on 93 these days. Especially with turbos and meth/water injection.


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