Merc 600sc?Any Good?
 

I am looking at a boat right now that is powered by twin 600sc's. Are these a descent set up? Drives are ssm #5. Just wondering what to expect with these mills. Anything I should be looking for? Supposedly refreshed 30 hrs ago. Thanks, Josh

Re: Merc 600sc?Any Good?
 

My 600SCs have 270 original hrs on them ,they don't use any oil and will still push my 97 TG just over 83mph on gps with 7 passengers and 200+ gallons of fuel.

They are however quite thirsty, with 4 Holley carbs on top , at 3200 to 3500 cruise rpms she uses 20 +gallons per hr per motor in my boat.

I look forward to other owner comments as well!

Re: Merc 600sc?Any Good?
 

WildWarrior--
How big is your rig? What is your cruise speed at 3500rpm. Are you running ssm or a different outdrive? I am just curious. I would think that they would be rather reliable being that Merc put them on the market. I have a 357sr1 that has no problem using a large amounts of fuel at cruise speed. What is your max rpm @ 83mph? Thanks for the info
Josh

Re: Merc 600sc?Any Good?
 

Josh,
My boat is a 1997 38' kevlar Top Gun I have factory stock Bravo drives ,83 mph is @ 5200rpms.

I believe I am some where in the low 50s at 3500 rpms I honestly never pay attention to my speed until I start running her into the mid 4s. Most of the time I try and run her at 20 gallons per hr between 32 and 3500 rpms.

I know that 4600 rpms is about 72mph with tabs way down at 6 .5 and drives in at 1.5 in rough water and a fully loaded boat.

Re: Merc 600sc?Any Good?
 

I Just rebulilt mine after 8 years of faithfull service

26' Larry Smith Scarab SC 600 #5 Drive

Re: Merc 600sc?Any Good?
 

Thanks for the info guys. Sound like a reliable set up
Josh

Re: Merc 600sc?Any Good?
 

Mine just went over 400Hrs this past week,,, 1997Apache ,, with bravo XR's ,,, do not use Oil,, and have never been opened up(apart) I run 32-3500 most of the time ,,, wil run a poker run leg,, about 30miles ,,,, wide open and dont have to worry about these engines,,, they are thirsty ,,, I can get a mile and a quarter if I stay at 3200 over that ,,,, forgettaboughtit... 5 Lbs of boost and 92Octane... Great engines ,,, Check the compression,,, should be 135lbs with 7 1/2 to one ratio ,,, thats factory spec.

RHC

Re: Merc 600sc?Any Good?
 

I have a similar setup, just curious as to what props you run. I spin stock 28's bravo 1's almost 5500 and was thinking about trying labbed 30's.

Re: Merc 600sc?Any Good?
 

Perfectmix,
Are you lookin at that Velocity? I'm going tomorrow to inspect it.

Re: Merc 600sc?Any Good?
 

I am running stock 26s