Speed Question??
 

I have a 1995 velocity 220. I currently run a 454/330 @ 70 mph on radar. It is completely stock except for a 26pitch bravo lab finished from scott at velocity. I am building an approx. 450hp motor. Any ideas on what type of speeds I could see with 450hp in this boat? I am hoping for mid 70's or better.

22 footer with a 450 hp BB power should run around 95 MPH with the proper drive height. I have seen 500 HP small blocks break 100 MPH.

Max Velocity My Guess would be low 80's . Were do you boat ? I see you live in Laporte . "Pinelake and lake Mich". I live in Chereston In.

We boat on Pine Lake and we head out to Lake Michigan whenever the wind is blowing from the right direction. I boat mostly with wette vette and a few others from the area. We have several nice boats running on the lake. Several bajas, checkmates, eliminators, obsession, etc. Pine Lake is a pretty fun lake except the weekends can get pretty crowded.
Where do you do most of your boating?

ON lake Mich .

With a 496 375HP 81MPH GPS

My motor will done in the next few weeks and hope to have the boat in the water the last weekend of May. I will be very happy if I hit 80mph. I will be at 450+ hp, so from what it sounds I should be running 80+.

Call me with any questions Kenny 407-321-1340

I installed a 454 cubic inch 464 HP (dyno horsepower, not prop horsepower) in my 1996 22 footer. With a 26" Bravo four blade prop I run 79.6 MPH on GPS with the tabs level.

Whats the temp, Whats the Alltitude?

This was in July 2002 on Lake Michigan. The temperature was probably in the high 70's, normal humidity, and I'm not sure about the elevation. Maybe 500 feet above sea level?

The reason for the reference to the tabs being level is because I tend to trim and tab the boat conservatively (safely!)

I should also mention that I'm running two sets of mufflers which individually shouldn't knock the horsepower down that much, but in tandem, I'm sure there's some affect.

I'm running CMI elbow top exhaust with their internal baffle muffling system. It's a kind of honeycomb assortment of internal baffles. Then on the exhaust tips, I have external Corsa mufflers as well.

how many RPMs

Approximately 5300 on a Faria tach. Hard to read accurately when going full out.