Offshoreonly.com - HP estimates on a 598 I'm having built ?

Quote:

Originally Posted by Wildman_grafix (Post 4888497)

To the guys that have dyno's on here.

The guy I use, we Dyno we the exhaust that will go on the boat, the sea water pump, circulating pump (if there is one), power steering looped back, alternator, flame arrestor etc.

Granted no water in exhaust but most are dry anyway.

Why do the hero run setups?

As do we. We actually own our own sets of Stellings, E Tops and Gen X to aid in getting the setup the same as the boat. We do run the water out the exhaust.
We don't offer a NA "Pleasure boat" engine over 750hp. It can be done sure but as plenty have stated above there's trade offs with everything. A pleasure boat has to shift, get on plane, expects a 200+ hour service interval and in a lot of cases cannot utilize dry exhaust. Build a mild blower motor and solve all of those issues.
The C Class spec engines we built were dry sump, 7400rpm, race gas and quite radical. Needed vent tubes to get the boat (36 cat) on plane and had crash boxes. Every 3 races they came apart and were freshened up. 750hp 468cid. Thats when races were 100+ miles but still. Not pleasure boat friendly at all.