How Much Horsie Power?
 

I have a question for all of gear head's out there. I have a 2002 Caravelle 232 Interceptor Sport Cabin with a Volvo Penta 5.7GXI with the SX Drive. 3400lbs with full fuel and Me.

Here are the upgrades I have done to the engine:

Head has been Ported and Polished,

Imco Thumper Power Exhust Manifolt and SS Riser's,

Threw Transome Exhust,

Roller Rockers,

Procharger supercharger 9psi boost,

upgraded fuel system to handle 9psi,

ECU fuel curves changed to handle the boost,

Compression lowered to 8.5 from 9.4

I am running a 14 1/2 X 30" Lab Finished @ 5400rpm

Stock horse power was 320hp prop shaft...
1.43 Gear Ratio

I am wondering how much Horse Power I really have? Is there any way to find out without putting the engine on a dyno? If not who has a good dyno and how much does it cost?

Are you seriously telling us that you are running 93 mph?

You have mondo HP.

Somewhere around 510, maybe ?

I put on the "Depends" when I take up her up to WOT...

Here's a Video clip of what the Boat ran like stock, the only mod was transome exhust...

http://hollyjessop.com/caravelle.WMV

9 lbs of boost? Caaaaaaaaa Boooooooom! be carefull.

The people at Procharger should be able to tell you......

Heads, exhaust, rockers, but lower C.R. and around 325-350HP.

Add the supercharger intercooled EFI
= 325-350HP X 9/16 = 508-547HP.

Thank's for the Number's. I talked with procharger, they didn't know because I have somewhat of a custom setup. I was thinking I was around 550hp but was not sure, also does anybody know a place where I can get the engine dynoed here in So Cal?

Be sure to let us know what your new top speed is...

... and how long it holds together at 9lbs!!

Be careful and have fun!!!!!!

My top Speed so far has been 94mph on gps. This was done on San Diego Bay. I had more throttle but the Chine Walk from Hell came along and made me soil my pants. I have K Planes and Lathem dual Stearing rams which help a hell of a lot, but I don't think the guy's over at Caravelle ever thought of desiging a boat that would go this fast. I have to say that the boat run's great up to 80mph past that point I don't think there is any boat in the water...:(