Hello Eveyone,,,I just wanted to throw this out there and see what happens. I think there should be more MPH!!!!

I have a 2000 280 Velocity,,,,502 Mag, With Whipple Supercharger/with intercoller From AZ speed and Marine,,,Great people,,,,,did the following: lighting Headers,Extruded plenum,50 lb fuel injectors, 5lbs of boost pulley, MSD,MR41T spark plugs gapped at 35 thousands (this does make a Differance!!!)

1/2 Tank Fuel Four Guys,,,doing 73 MPH GPS
3/4 Tank Myself 76-78 MPH GPS,,,,Chimes bad on top-end
with a 27 pitch 4 blade...


how can I get more out with out upping the boost???


Thanks,
Mad-dog
St.Clair Michigan

I hate to tell you this but I can do 73 with two people and a light load of fuel. I have a 502 mag with lightning headers, a blue printed prop and a modified ecu.

What is your rpms and what kind of prop are you running?

I have found that I seem to experience more chine walk when the water is flat and I do not have a co pilot. You may also want to check your steering.

Padraig,

Hep thats what I'm hearing 73 from other people with out a whipple,,,,I don't get it unless my GPS speedo is not working properly? Well I have a 26 pitch Hydro 4 blade,,, 27 and a 29,,,I ahave been running the 27 5000 RPM. Planning on trying the 26 this weekend,,,,I don't know it just doesn't make sence?????????

Something is drastically out of wack here. Been there...83-85 on 630 H.P. Do you have hydraulic steering? If you don't...get it. I've been doing Velocity for 10 yrs....much more drivable and easier to keep squarely on the pad at speed. Propeller makes a huge diff in drivability @ speed in these boats! My '93 holding the nose up and going straight w/ no walk...low-mid 80's mph.

Did they up the rev limit on your ecu or is it at the Morc setting of 5050. If you can't turn the 26 at well over 5000 that should tell us something. I great guy for Velocity Prop help is Mike at Hall Propeller. Knows and races Velocity.

Rippem, what prop were you using, I would think that a 502 with a whipple should be turning a 28 or 29 at 5000 or more rpm. If I remember correctly Willerty was getting 82 on gps with his whippled 502 Mag.

Notice in the previous pic, the deck angle to the water..parallel.. the way Steve intended the design. Note also the water behind the boat..this is a 26' (280...yea.. ) in perfect trim @ speed! If your new to Velocity, don't confuse "chine walk" with "bow steer" from having the front of the pad too involved as speed gets up. You've got to have the cojones to put enough trim out at speed! As Steve would say "she needs to be a little higher" (in a southern drawl ) The power...

Padraig, I was spinning a modified 26" Hydro 5600. Bye the way...I just sold my 32' ....it was a great boat for six + seasons...I will miss her but it's time to move on.

Congrats I wish I could have bought her. What are you going up to?

Padraig....'35...38' something Formula or ??? There are alot of really strong buys out there, and money is cheap! Although I suspect there may be one more drop in consumer rates before this crazyness is over. What agreat time to be shopping clean buy/no trade. I sold the boat to another member of our powerboat club and OSO member "Bajadave"...I told him "you gotta change that handle man!" I believe he will. The boat is like new or better...never outside unless I was on it...and all kinds of nice upgrades throughout....

Tell him to bring it to the Seneca Lake Poker so I can drool over what I missed. Good luck with your search, if I hear of anyting interesting I'll let you know.