Re: Superboat Speeds ???
 

who needs a 540 / 600hp for 6000 thats only $10 per hp. fits well in a superboat only 22 hrs

Re: Superboat Speeds ???
 

This is from a post from Jeff Gerardi, Mr. Freeze Frame.

Re: Superboat Speeds ???
 

Quiz, Name the five boats in JCAP'S class.

Re: Superboat Speeds ???
 

Well I'm going to winterize today to spite the 58° and sunny forecast... :(
I did take the "For Now" out for a blast yesterday before dragging her home... :D
Bruce, the owner of the marina, offered to let me leave her in a slip until Sunday afternoon. But she's just about out of gas and have too many chores... :(
Anyway, I broke out the GPS to get some end of the year numbers... :evilb:
Test Conditions:
53°F, Sunny, 5-10mph wind from the Southwest, The water was calm with barely a ripple... :cool:
One person, 1/8 tank of fuel, no mufflers, six pack, and the rest of the crap that has accumulated in the cabin during the year... :rolleyes:
Upriver (north) 76.6mph @ 4850rpm
Downstream 78.4mph @ 4900rpm
Those are the best/fastest speeds I have seen since installing my 502.
I think the combo of the cold air and removing the mufflers gave her a little extra... :drink:

Re: Superboat Speeds ???
 

Pat, I would be very happy with those numbers !!!! Next year a whipple for you ??????

Re: Superboat Speeds ???
 

Good numbers Pat. You have me beat so far. 78.3 is my best. I've never run my boat that low on fuel though. I usually have at least 1/2 tank.

It's supposed to be 68 here today. I want to boat but I have things to do. I think I am going to try to get one more run in and then pack it in for the year. Later this week it's going to be in the high 50's. Who knows after that.

Re: Superboat Speeds ???
 

Numbers sound good Pat! :drink:

Re: Superboat Speeds ???
 

No Whipple Gary.
The only thing my 502 will get this off season is a new set of Stainless Marine exhaust to replace the set that has sprung a leak... :eek:
I do have just about everything to build a 500 but it's running too well to mess with For Now... :evilb:
How about you? Are you going to turn up the boost?

Re: Superboat Speeds ???
 

Dave, the 78.4 number was definitely aided by an outgoing tide. I did not stop to check how fast the current was but the buoys were laying over pretty good.
Also, the speedo read 84 both directions so I'd average the two GPS numbers for 77.5mph. Still more than 1 mph faster than what I recorded this spring (76.4)... :drink:

Re: Superboat Speeds ???
 

Pat, for sure as soon as warranty is up, and as soon as someone can reflash the ECM, it seems no one is saying to much yet on that subject. Also I hope the XR can handle all that HP. I have read that the XR is really only rated for 600 HP. Perhaps the new merc. mini 6 will be in order.