Russ G.

Hey guys I have a 03 502 415hp Volvo with 25 hours on it. What is the cheapest way to make hp from this engine? I already have gil exhaust. Thanks.

Russ

DollaBill

throw it out and put a new 525 in it.














Just kidding. The door was wide open.

Stormrider

Check w/ Pat McPherson.
He's been posting working w/ this engine in the superboat forum.

Russ G.

Thanks, How much different is it than the mercruiser?

SeaRay Jim

I think the main difference in fuel system. The problem with VP is there is little to no performance aftermarket. You can certainly do something with it, but I think you'll need to go down to the long block and replace everything from the intake up or at least go internal then modify. Going internal you can pretty much do whatever you want.

It comes down to whether you want to go the extra expense. You just can't bolt on a Whipple like you can a Merc.

JIMG

There is plenty to be done with that engine. I believe the volvo comes with the same intake as the merc 500efi. You would have to change a bunch of parts, (cam, lifters, valves, springs, maybe the injectors) & reprogram the ecm. This will make a 500 efi out of it and it will run very nicely.

SeaRay Jim

Learn something new every day! That's actualy not that bad then!