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-   -   Turning my Merc 850's into 1075's... Any Thoughts?? (https://www.offshoreonly.com/forums/general-boating-discussion/268243-turning-my-merc-850s-into-1075s-any-thoughts.html)

WildThing47 03-16-2012 12:14 PM


Originally Posted by vette131 (Post 3642634)
no reason to run a solid roller at that power level unless you enjoy adjusting valves!!

oh I agree....especially with the advances now with the hydraulics...

eddie 03-16-2012 12:19 PM


Originally Posted by madhatter42 (Post 3642611)
I'm curious to this as well since I have not heard any feed back on the conversion on the 1075...

They run like 525 EFI's around the dock, just awesome. We took a 40 Skater out with Mark's 1330's on Monday. Boat is still being dailed, the motors are amazing.

WildThing47 03-16-2012 12:31 PM


Originally Posted by eddie (Post 3642639)
They run like 525 EFI's around the dock, just awesome. We took a 40 Skater out with Mark's 1330's on Monday. Boat is still being dailed, the motors are amazing.

http://www.youtube.com/watch?v=EKYyo...dPw5f1g-uNbTA=

LOVE the sleeper look heh :thankyouthankyou:

eddie 03-16-2012 12:45 PM


Originally Posted by madhatter42 (Post 3642647)
LOVE the sleeper look heh :thankyouthankyou:

I have 40 minutes of go pro video from the shake down run. I was a guest on a customers boat. If they don't mind me posting it I'll figure out how to do that and get it up.

Mark does an amazing job, I've got another buddy with 1075's that he rebuilt back stock. Just sea trial time so far, but they run great.

As Merc gets more and more of the 1,100 and 1,350's out there I hope these Merc 850+ motors become more available on the used market.

WildThing47 03-16-2012 12:47 PM

Sounds good!

SLOWRIDE-388 03-16-2012 05:40 PM

Looks sweet, may need some new painted cowl covers though.

Reggie Fountain 03-16-2012 06:37 PM

Would be a big performance gain.

Reggie Fountain 03-16-2012 06:45 PM

Should pick up 20 plus with the motors & if you really set it up it should approach 30 MPH.

gofastlvr 03-20-2012 01:46 PM


Originally Posted by madhatter42 (Post 3642647)
LOVE the sleeper look heh :thankyouthankyou:

Yeah that'll surprise some folks... Love it! So the 1330 is and 850 that had the cam and ECU changed over to a 1075 then it has the Whipple kit?

Whipple Charged 03-20-2012 06:11 PM


Originally Posted by gofastlvr (Post 3645419)
Yeah that'll surprise some folks... Love it! So the 1330 is and 850 that had the cam and ECU changed over to a 1075 then it has the Whipple kit?

There's multiple packages, all can start from 850, 1025 or 1075.

The 1330 was the larger SC's, stock valve train. With the upgraded cam package we offer, it makes 1390hp with race gas, 1225 on pump gas.


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