How much HP

Robertpel9

Petty Officer 1st Class
Joined
Apr 20, 2008
Messages
265
I just went thru a nightmare taking care of my hydrolocked engine. During that i stubled into service manuals etc for my boat and engine combo and wonder how much HP does my boat actually have. Does anyone know?

It is a 1995 Chris Craft Concept 18 with A Volvo-Penta 4.3 GS with SX drive. I have seen the GS model rated at 220hp all the way down to 175 based on what pamphlet i look at. I think the GS meas it is a 4BBC vs a 2BBC. All i can see on the outside is Holley

Anyone know??
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,133
Re: How much HP

The 4BBl carb 4.3LX (Mercury's entry) was rated at 205HP. I would think the V-P is the same. The 220HP was the MPI I believe
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: How much HP

merc of that vintage were rated 155hp(2bbl) and 175hp(4bbl) at the prop. VP will be plus or minus a couple of ponies, but very close. - different exhaust, cam etc.
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: How much HP

Actually - if you got to the VP website you can search the database all the way back to 1907.

If it is just a GS and not a GS**** then it is 225hp.
 

Robertpel9

Petty Officer 1st Class
Joined
Apr 20, 2008
Messages
265
Re: How much HP

Actually - if you got to the VP website you can search the database all the way back to 1907.

If it is just a GS and not a GS**** then it is 225hp.

It simply says on top of the carb "Volvo Penta 4.3 GS"

I saw how the ratings are all over from 175-225 that is a big difference.

It is a 18'6" chris craft and does exactly 50 on a handheld GPS, what sounds right??
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: How much HP

that's great. little higher than i expected.
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: How much HP

50 mph on the water is very respectable for any size boat......

forget the hp rating.....and enjoy the great fuel econemy and a good speed
 
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