Any HP parts for a Mercruiser 3.0

[RAVEN893.0]

I have a 19 ft Raven with a 3.0 Mercruiser.My question is, Do they make any High preformance parts for this little 4cylinder 3.0 engine? Cams,Rocker arms,Carbs,Props? Anything i could do to get a little more HP out of her? Thanks for the help!

 

[jeff13601]

Re: Any HP parts for a Mercruiser 3.0

Get a small six cylinder. Just kidding, although for the money it would cost you would probably be better off. Some of the more experienced motor people will prob have some answers

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

I would do a 6, but my 3.0 is only 2 years old.It has maybe 60 hours on it.Thanks Jeff13601

 

[jeff13601]

Re: Any HP parts for a Mercruiser 3.0

I would probably be willing to buy it off you when you decide to upgrade, lol. What part of new york

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

I live in Long Island NY.If i upgrade ill let you know.

 

[jeff13601]

Re: Any HP parts for a Mercruiser 3.0

Ill be waiting...Welcome to iboats

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

Thanks for the welcome, Jeff13601

 

[mikebc]

Re: Any HP parts for a Mercruiser 3.0

What prop do you have on? I had the same problem, looking for a "magic bullet," is a tuff one with the 3.0. I found by stepping down a few pitch #'s to a 18 with 4 blades helped a ton. I hear ss props are a bit better too. Good luck!

 

[mikebc]

Re: Any HP parts for a Mercruiser 3.0

P.S. Someone on this site just posted how to drill a small hole on each blade, I've heard great things about this, but I think it's easy to ruin a prop if you don't follow the directions.

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

I have a 3 blade,Not sure what pitch # it has.Im guessing it would be the factory pitch? Ill take a look to see,Ill let you know.

 

[mikebc]

Re: Any HP parts for a Mercruiser 3.0

What are you looking for, top speed or getting up out of the water faster? You also need to note your top rpm's at wide open throttle. The specs should be on a label on the engine, but I think you should be running 4,500 rpm +/-, but check your label, should be under the oil fill. If yours id like mine, it has a 19 on it, I stepped down 2 sizes and WOW, pops out of the water like a v8, but I have to watch my rpms, if the boats empty, low on gas, and not towing anything I will get up close to 5,000 rpms, to high. Most of the time I have a full tank, 4 people, 200lbs of gear, and towing a tube or skier, then I only hit 4,500 on a good day!

 

[novicetech]

Re: Any HP parts for a Mercruiser 3.0

Rodbolt had a post awhile back about a 3.0 that generates 180 hp from marine power. I know it has mpi and proibably a vortec haed of some type. I would like to have more info also.

 

[tommays]

Re: Any HP parts for a Mercruiser 3.0

http://www.marinepowerusa.com/eng specs/181.htm <br /><br /><br />CRANKSHAFT POWER RATING (EFI) HP/KW* 145/109 <br />(TBI)<br /><br />the HP reality is a let down but it doesent have any 3.0 bog with the TBI <br /><br /><br />tommays

 

[Bondo]

Re: Any HP parts for a Mercruiser 3.0

Do they make any High preformance parts for this little 4cylinder 3.0 engine?

Nope,.................... <br /><br />There was a Custom-Built Turbo set up on ebay about a year ago......

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

Mikebc the # that i got off the prop ended in a 17p.So what do you think?

 

[jeff13601]

Re: Any HP parts for a Mercruiser 3.0

If it hasnt been worked on it would be a 17 pitch

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

I guess ill have to either sell the boat and buy something with a bigger engine,or just put a bigger engine in the boat.

 

[RAVEN893.0]

Re: Any HP parts for a Mercruiser 3.0

Does anyone know what size rocker arms are in a 3.0?