JIMKID Motorsports

Check out the post about ilmors small block ls based test boat

bor

do you have a link ?

4mulafastech

http://www.offshoreonly.com/forums/g...id-2013-a.html

Precision

Damn, looks like Raylar was right.....not so much.

hogie roll

Are you using MAFs?

cp5899

My auto turbo motors have lasted longer (tune being correct on both supercharged and turbo). I could feel the harmonics of the supercharger, belt etc in the floor of the car. It just seemed harsh. As for wearing bearings out. I have had issues with the front crank bearing having excess wear due to having to tighten the blower belt so tight to keep from slipping under boost (serpentine belt not cog). I actually had a crank snout break off going down the interstate under full boost one time. My turbo motors (turboed small block fords) were so much smoother in comparison and power delivery was just awesome compared to the supercharges I had ran before. I changed setups and went from twins to a single. While doing so I torn the engine apart to freshen things up after 20k miles and everything seemed great (680hp to the wheels). Virtually no bearing wear like I had experienced from the supercharges.

timmoore

Yes. I did run it the first couple time without them though.

Crude Intentions

I'm seriously considering it thanks to sprink. Been doing a lot of research.

Lkqonline.com good place to start. Complete motors 6.0 in te 1000 dollar range. High mileage but a good base point if your interested.

hogie roll

I've been under the impression that heated wire MAFs are a fire hazard and not generally compliant with marine standards. I don't know how risky it actually is though. Any concerns? I see your hatches are pretty well vented.

C_Spray

LS-based engines currently in full production:

Crusader 6.0/375 hp inboard

Ilmor 6.0/382 hp inboard

Ilmor 6.2/430 hp inboard

Ilmor 7.4/522 hp inboard (Basis of the upcoming 570.)

PleasureCraft 6.0/409 hp inboard

PleasureCraft 6.0/450 hp inboard

PleasureCraft 6.2/550 hp inboard(supercharged)

Volvo Penta 6.0/380 hp sterndrive

Of all these, the Ilmor 7.4/522 is the only LS-X engine.

Crusader still lists 8.1 (496) engines on its web site. Volvo Penta does not, but is the only company to offer a sterndrive LS package so far.