Naturally Aspirated Power!!
#21
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I spent alot of time dynoing my 540 last year,I made 657 hp at 5400 and 665 ft lbs tq at 4800 using a ported 2000 502 mpi lower,stock upper plenum and a bored out throttle body on Crocketts dyno with CMI headers with the blower belt OFF. Keep in mind my motor is built to run as a blower motor so it only had 8-1 compression and a cam ground for max power running my blower too so it would have had a little more tq and probably a few more hp. My boat (272 Baja) runs 76 mph with a 26 pitch labbed 4 blade with this set-up,my drive has a nose cone and hd xr internals plus upgrades for when I'm running faster with the blower so there might be a mph or 2 gain in speed if I had a std drive. For reference My boat ran 62 mph years ago with the stock 502 mpi. I searched high and low trying to find someone to bore out the throttle body,I now have a source if you need it done,Smitty
Last edited by articfriends; 04-22-2008 at 12:32 AM.
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