27 fever with 496HO speed and cockpit
 

First of all, what kind of speeds should i expect on a boat like this... it's an '05 with 298 lovingly maintained hours (paperwork to go with it)

everything is stock. I saw 60mph, but no more, playing with tabs and trim, and still can't get more than 61-62 mph on the gps.

This doesn't seem right... anyone know of anything that may be limiting my power or something?

Also, the red background behind my guages is beginning to fade, and i'd like to replace it with white... anyone know where i could get one that is high quality and relatively inexpensive... please link me. thanks!

At what rpm?

wow.... can't say i remember... it's been a few weeks since i've seen my boat.... duty calls (i'm in the army)

Need to know rpm and prop pitch to start with. My boat with a 454 mag 385 hp ran 67 all the time. You may be running too big a prop. You should also be turning close to the rev limiter.

If setup properly, it should run 68+

Drive 4+
Tabs once on plane all the way up (0)

1/2 tank of fuel one or two people in the boat max.

1.65 drive = 28" bravo 4 blade roughly
1.5 drive = 26 bravo 4 blade roughly

Stock limiter is set at 5150. You have to be at or very near to reach 68-70 (at least I did).

And the anolog tach sux. You need a digital tach or scan tool to see the real engine speed.

+1
 

Precisely as SDFever said!

+2
 

I'll third that!

I'm running so close to the rev limiter that I can hit it when the air temp drops and the humidity is low. The previous owner had the prop labbed to the boat and it's dialed in pretty good.

Find out what prop you are turning, where your rpm's are and then we can go from there.

How do I know a 1.5 from a 1.65 and how/where do I measure my prop?

I've got the same problem with my 27 fever 496 HO. 62 once got to 66 MPH all the other times 62. I have 30 in. pitch prop turnin 4900 to just under 5000 on tach. no idea what gear bravo is

If the drive was sold on the boat orginally or if it was replaced as an "entire" unit, the drive ratio will be stamped usually on the starboard side of the merc deal of the upper unit.

If someone has replaced the decals etc then there may not be a number to view. The serial number is in the same area on the port side of the crown of the upper unit.

It will say "1.5" etc and the prop (if it's a bravo) will have the pitch stamped in the hub.