24 Superboat BBC Twin Turbo !!!
 

Here are some photos of my 24 with a one of a kind Gale Banks 454 MAG MPI with twin turbos and a water to air intercooler. Dynoed at 848 hp@6500 RPM. The boat roams Lake Winnepasaukee in New Hampshire. We have very strict noise regulations here so I had to go with turbos instead of a blower.
My best top speed is 88.3 on GPS. The boat is rigged with the turbo motor, Cyborg trans and a TRS drive spinning a stock Bravo 1 4 blade 30 pitch prop. The midrange acceleration is incredible!!
The photo that shows the boat standing up a little is a full throttle up starting at 60 mph in flat water!

photos of 24
 

photos of my 24

Cockpit of my 24

Fly by at 80 mph with full fuel, and 4 adult males with all their luggage !

Twin Turbo Gale Banks/Mercruiser 454 MAG MPI

That's a pretty cool rig Maguyver! What year is the hull? I'm suprised your not going much faster with that kind of HP. 6500 RPMs? Must be tough on that Bravo!

Hey Maguyvah, nice ride I saw your boat last summer tied up at the docks in Paugus Bay at the Fitzgerald Motorsports boats show. Very impressive a 24' boat with almost 900 HP it must be quite the ride. If i see you on the lake this summer I'll come over and say hi.

Kirk

Real Nice Ride.... Dave M this boat has a TRS drive... no bravo... Smooth shifting & no drive problem....

Re: 24 Superboat BBC Twin Turbo !!!
 

78 24 454 Twin Turbo 795h.p.
http://powerboatlistings.com/view/1375

Re: 24 Superboat BBC Twin Turbo !!!
 

Try looking into one of the newer stepped hull's. Guaranteed you'll go a hell of alot faster.

Re: 24 Superboat BBC Twin Turbo !!!
 

Holy Cow! 88+mph, That is fast!

So what is that fastest 24' Superboat of all time?

Hey FX10, Have you guys ever run a step and non-step 24' side by side with the same power?

JMK and I have run together a few times. His 2002 with 320HP/6.2 was faster than my 1997 with 310HP/7.4, but not by much. I'm thinking because of the weight difference as much as anything...

Re: 24 Superboat BBC Twin Turbo !!!
 

Hey Pat
While we're on this subject. Do you notice a difference in ride in a confused chop between you (non step non pad )& JMK (step pad). I was just reading on the Sunsation forum about a 28 step pad's handling situation like mine does. It seems to wanna wander around in this frequent type of sea compared to strait vee. Stepp hull bad. Vee good.

Re: 24 Superboat BBC Twin Turbo !!!
 

Hey Superbash,
I have only ridden in a step 24' (JMK's) one time and it was a calm evening on the river; so I can't give first hand info as to it's rough water feel.
It would make sense that a stepped, pad bottom would not track as straight in random rough water though.
FX10 has not answered my question yet, but I can share info and knowledge that others have told me.
As for a speed difference between the two, there is little if any difference.
GRH's boat ran 73mph with a stock 365HP/454Mag carb engine on fresh water.
Dutra runs 74mph with a 385HP/454Mag MPI. Dave M. has hit a best of 75mph with the same power and they both run in salt water.
1-2mph difference? Naaaa... :rolleyes:
Side by side I believe they would run together.
A step in a boat that daces on the last 2' of the hull will do nothing, the pad might???
Think we might stir up the pot with this one Bash... :eek:

Re: 24 Superboat BBC Twin Turbo !!!
 

Hey maguyvah,you need a spare drive?? i got one and some xtra parts,props,72 tranny,and a 598 680 horse mota any needs?? tripps

Re: 24 Superboat BBC Twin Turbo !!!
 

Tripps
-This thread was from 4/02...2 1/2 years ago! I dug it up cause of the similarities of the 24 "RumRunner" 4 sale (sounds like a boat for you!).

Pat
-Yes...I am not into the step thing...more harm than good...pad may help over 80 in flat water.

Re: 24 Superboat BBC Twin Turbo !!!
 

Hey lookie what I found!!!! That's my old boat!

You've done a nice job Scott! :D

Kurt

Re: 24 Superboat BBC Twin Turbo !!!
 

1977 24 Superboat 760HP with Bravo.101 on GPS.I havent heard of one faster.Would be scary to think of one faster :eek: