Whats really in her?? 272.
 

Hi all, Well after selling our outlaw last season we finally picked up a 1999 272 w/ 454 MPI. Needless to say, I am again in love with my Baja. The boat came with gil offshore exhaust, 4 blade ss prop and merc ss 3 blade 23p., and a k&n air filter. Before I bought her I did some forum digging and figured she could maybe top out around 64 on a perfect day. Well 2 days ago I ran her for the first time With the 4 blade, and hit a speedo reading of 72 and a GPS of 69.7. Also my trim tabs were not working, so she wasn't running as fast as i think she can. Could these speeds be possible with this setup? Seems high to me. Whats else could be in this girl?

i have a 98 272 with the 310 hp 454 mpi and the best i have seen out of mine on the GPS is 56, 57 with a 23p mirage plus i think maybe you have a little more engine than i do

If your hitting those speeds you have a 454Mag or equivalent HP around 385-425hp

I have the gen VI 502 with gil exhaust and K&N running a bblades labbed M+ 23 3 blade. I see high 60's bumping 70 like you did. Maybe you just got a strong 454 mag pushing a little over 400 hp.

She is a strong runner. I had a 1997 272 with a 454 mag stock motor even exhaust. 23p with 4 people and ½ tank she would run 67.9gps. They clamed some of the 454 mags are under rated as the 502 were over rated.

To be at 69-70 in that boat you have to have right at 400hp maybe a hair more. Previous owner may have rebuilt and added some HP to the ride, congrats.:evilb:

You're the first guy in the history of Baja that went FASTER than you expected!

Plus or minus 10% of Merc #s could be as much as 420-425 hp out of a 454 mag

Wow, This is awesome. Its like finding hidden treasure. Thank you all for your fast reply's. Im very happy with my new Baja. Shes spotless and we picked her up for 22,500. not bad in my mind. Once again Thanks everyone. Now I have to address my trim tabs. I will start a new thread.

Congrats on the Baja!