racinbird

OK, I have a 1997 232 boss with a built 502 carbed engine. I run according to gps approx 70 mph at 5100 rpms on a standard Bravo 1 outdrive with a 24p bravo 4blade prop. Im guessing around only 425-450 hp, any thoughts? Any other 232 boaters, what do you run and with what setup. Thanks for any help. Only reason I ask is because I have no internal engine specs on this but being a 502 with merlin heads, holly carb, RPM airgap manifold, and whatnot I figured I would get more speed out of this thing. Im guessing it just has a small low end cam. This thing is a beast at lower and midrange operation and falls flat near 4500-5000 rpms.


Thanks again

Allan4

I would say right in that hp range too. Sounds like you have a nice midrage tq motor that spikes, but falls off after mid 4k's....

Madmax

I'd say your right on also....... maybe on the lower side of that 425-450 range....

Chris288

I'd also say on the low side of that #...

Ric232

Have you tried a 25P Mirage Plus? You should get a little more speed which would put you closer to 450hp. The Bravo 1 scrubs a little speed, so you're probably generating more than 425.

My best two-way average is 69.5mph on GPS with a mildly modified 454 Mag MPI. I suspect I'm generating about 415 hp. That's with a 23P Mirage Plus at about 5300rpm. I can only spin a stock 25P to about 4800 rpm.

Glenora

Racinbird,
Hydromotive "Turbo" 3-blade 25P will give you 73mph on the GPS in 2-3 foot chop. You will have your hands full though!
I am curious to see what the 25 Mirage will do.
Keep me updated on any mods you do to that beast!
Glenora

racinbird

Glenora, Im currently waiting for a 25p mirage from Darin at houston prop which he has worked and turned into his accelorator design, very excited to see what happens. hoping for around 74!!!

Glenora

Racinbird,
Try these links for prop-slip calculator and speed calculator. Fun!
Speed Calculator
Prop Slip Calculator