Power and Speeds in a 28 twin?
08-13-2004, 07:52 AM
#1
JC Performance Engines
Gold MemberThread Starter
Power and Speeds in a 28 twin?
What are you running and how's it run?
What kind of speeds are you seeing?
What kind of speeds are you seeing?
Last edited by Stormrider; 08-13-2004 at 09:33 AM.
08-13-2004, 09:28 AM
#2
Performance Boat Center
VIP Member
Re: Power and Speeds in a 28 twin?
This is my green eyed girl...
Runs good with twin 502MPIs..
Runs along great in rough water.
You realize you're opening a can of worms with this single vs. twin thing...
Runs good with twin 502MPIs..
Runs along great in rough water.
You realize you're opening a can of worms with this single vs. twin thing...
__________________
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
08-13-2004, 09:34 AM
#3
JC Performance Engines
Gold MemberThread Starter
Re: Power and Speeds in a 28 twin?
What kind of speeds are you seeing too?
Not trying to open the canoworms, with the whole balance thing.
Just wanna see what twins speed is.
Gracias.
Not trying to open the canoworms, with the whole balance thing.
Just wanna see what twins speed is.
Gracias.
08-13-2004, 09:42 AM
#4
Performance Boat Center
VIP Member
Re: Power and Speeds in a 28 twin?
I'm kicking myself for this, but...
The boat always ran 76-78 depending on load. I was seeing 46-4800rpm.
I just had the FI totally cleaned, and now the engines run right to 5000...
The worst part is that I didn't have my GPS with me the last two times I ran the boat.
So, I'd say 79-80 on the nose...
This boat would be a real sweet heart with twin 525s...
I had actually considered swaping out the 502MPIs for a pair of 525 HP Mesas... But then I looked at my checkbook, and decided the 502s were keepers.
The boat always ran 76-78 depending on load. I was seeing 46-4800rpm.
I just had the FI totally cleaned, and now the engines run right to 5000...
The worst part is that I didn't have my GPS with me the last two times I ran the boat.
So, I'd say 79-80 on the nose...
This boat would be a real sweet heart with twin 525s...
I had actually considered swaping out the 502MPIs for a pair of 525 HP Mesas... But then I looked at my checkbook, and decided the 502s were keepers.
__________________
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
08-13-2004, 09:57 AM
#6
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Re: Power and Speeds in a 28 twin?
502MPI
26 Bravo 1
Without mufflers 76-78 95 db
With muffler inserts 74-76 85 db
Never GPS'ed with the fuel gauge under 1/2. Can't wait for the day to plop 650+ hp per side in.
26 Bravo 1
Without mufflers 76-78 95 db
With muffler inserts 74-76 85 db
Never GPS'ed with the fuel gauge under 1/2. Can't wait for the day to plop 650+ hp per side in.
08-13-2004, 10:09 AM
#7
Re: Power and Speeds in a 28 twin?
Originally Posted by MYPANTERA28
Not only is Tim`s boat fast but it is balanced perfect, this boat flies straight like an arrow.
Dont make me break out the flying pics!!!!!
Rick
08-13-2004, 10:14 AM
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Re: Power and Speeds in a 28 twin?
Originally Posted by Thirsty Turtle
502MPI
Can't wait for the day to plop 650+ hp per side in.
Can't wait for the day to plop 650+ hp per side in.
Sounds like a great winter project. 
08-16-2004, 02:19 PM
#10
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Location: Tulsa, OK, Grand, Beaver, LOTO
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Re: Power and Speeds in a 28 twin?
Speaking of the can of worms....
Does anyone know (actual first hand experience rather than theory or my brother's friend's cousin said...)
How's the fuel burn in say a twin black 502 (415 each) vs a single efi 750 hp boat??
I know I'm not apples and apples on ponies but I am close on boat speed and the 830 hp on a single 28 would really be taxing the Bravo IMHO. I realize we're pushing another drive and 1200 lbs through the water, but aside from that??
Does anyone know (actual first hand experience rather than theory or my brother's friend's cousin said...)
How's the fuel burn in say a twin black 502 (415 each) vs a single efi 750 hp boat??
I know I'm not apples and apples on ponies but I am close on boat speed and the 830 hp on a single 28 would really be taxing the Bravo IMHO. I realize we're pushing another drive and 1200 lbs through the water, but aside from that??
