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New Drivetrain: need help deciding on engine 950hp BBC vs 700sci

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New Drivetrain: need help deciding on engine 950hp BBC vs 700sci

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Old 08-18-2016 | 09:27 PM
  #31  
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Originally Posted by TurboRaven
Well the search is over for now! After speaking with Brett, I ended up picking up his new 700sci.

With several inter-island trips per year (open ocean navigation), reliability is #1 especially with a single engine setup. So I will sacrifice some power for this peace of mind...for now.

Appreciate everyone's input!
There is no peace of mind with a boat only a lighter wallet. A well built 632 with a carburetor or two on top is a much more reliable peace than a fuel injected motor especially a Mercury fuel injected motor. Sounds like you spoke with a good salesman.
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Old 08-19-2016 | 09:02 AM
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The guys made his choice, why people get all offended when they don't do your route is beyond me.

Good luck with the build, sounds really cool, I'll be in Hawaii in February
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Old 08-19-2016 | 10:49 AM
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Originally Posted by BBCLiberator
The guys made his choice, why people get all offended when they don't do your route is beyond me.

Good luck with the build, sounds really cool, I'll be in Hawaii in February
+1

I should keep my mouth shut, but I've never been good at that…

I've run carbed motors, both on gas and on alcohol, and yup, they were dependable.

But to say a carbed motor - even a well set up one - is "much more reliable peace" than a fuel injected motor ?

I think that's a "bit of a stretch" and will admit that isn't the first phrase that came to mind.

Carbed motors have to be set up correctly to be dependable.

Injected motors have to be set up correctly to be dependable.

Either is a piece of **** when it's broke.

But, in my opinion, the biggest difference is this: carbed motors have to be tuned for the area and conditions they're going to be run in.
We aren't talking about some wimpy stock motor in an 18' family bowrider tuned so wide it doesn't matter where in the country it's being run.

We're talking about substantial cubes and relatively high performance. If you have a dual carbed, 600+ CID motor tuned so it can be run in any conditions regardless of altitude, temp, or humidity, it aint "set up right". That's just the math, and math isn't an opinion.

I've got a 600 CID, compound blown, electronic efi Boostpower engine that doesn't so much as hiccup. It can be run anywhere in the country, and if I do have an issue, if I've got wireless access Alexi can tune it remotely from his laptop. I'll put that reliability up against any carbed motor any day of the week in any conditions. And it's no trailer queen, it gets run weekly and hard enough that I have a spare outdrive because that's the weak link, not the motor.

I'm not trying to start a pissin' contest, but why are you trying to rain on the OP's parade?

He asked for advice, made a decision, and is obviously excited.

"Sounds like you spoke with a good salesman"

That sounds like a disgruntled salesman that lost a deal. You the guy trying to sell him the carbed motor?

I'm sorry for the rant, but WTF ? This kind of BS is exactly why OSO has people defecting to other forums…

Looks like I'll be following them…haters just gotta hate, i guess
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Old 08-23-2016 | 10:27 AM
  #34  
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I just wish my big problem was deciding between a stock 700hp or a 900+hp engine. That is one problem I could deal with!!!

Someone (me) needs a bigger boat budget
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Old 08-23-2016 | 08:35 PM
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Originally Posted by SB
You Throttle's Performance ?

I recognize the 900HP forum member name from other places.
Yup. busted. lol.
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Old 08-24-2016 | 11:14 AM
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Although I would have gone custom (on my last build I went to Boostpower like slippery) there simply were no bad choices here.

The Merc 700 is a great package and what foibles it may have are well known and with a few changes it can become a fire breather.
The poster should rightfully be very happy especially if he got a clean low hour unit.

UD
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Old 08-24-2016 | 12:14 PM
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Originally Posted by Uncle Dave
Although I would have gone custom (on my last build I went to Boostpower like slippery) there simply were no bad choices here.

The Merc 700 is a great package and what foibles it may have are well known and with a few changes it can become a fire breather.
The poster should rightfully be very happy especially if he got a clean low hour unit.

UD

New, with a warranty even. I think...
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Old 08-28-2016 | 02:48 PM
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Congrats Turbo,

Here is what a merc 700 sounds like - its nasty.

The vid kept changing aspect ratio, but you can get a good idea of how raspy and mean the merc 700 is.

The blue 39 with windshield has 2 of them and goes like a bat out of hell with cleavers.
The boat on the left a Lavey 29 has a teague 800 in it thats been sweetened a bit and is nasty as hell
Im in the middle with an Ilmor 710 on 2" CMI's with Gatlins.

Bup is sitting on my left.


https://www.youtube.com/watch?v=LUOM...ature=youtu.be


UD

Last edited by Uncle Dave; 08-28-2016 at 04:14 PM.
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Old 08-28-2016 | 06:09 PM
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[QUOTE=Uncle Dave;4474548]Although I would have gone custom (on my last build I went to Boostpower like slippery) there simply were no bad choices here.


Originally Posted by BBCLiberator
New, with a warranty even. I think...
Correct; a new, never fired unit complete with headers and warranty. Couldn't be happier.

Originally Posted by Uncle Dave
Congrats Turbo,

Here is what a merc 700 sounds like - its nasty.

The vid kept changing aspect ratio, but you can get a good idea of how raspy and mean the merc 700 is.

The blue 39 with windshield has 2 of them and goes like a bat out of hell with cleavers.
The boat on the left a Lavey 29 has a teague 800 in it thats been sweetened a bit and is nasty as hell
Im in the middle with an Ilmor 710 on 2" CMI's with Gatlins.

Bup is sitting on my left.


https://www.youtube.com/watch?v=LUOM...ature=youtu.be


UD
Sweet sound clips! Thx for sharing. Getting excited to get the new powerplant in there to hear the same music!!
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Old 08-28-2016 | 06:19 PM
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All I will say, for what little it might be worth, seems that more often than not the aftermarket big gun builders come up with some numbers to make your sticker peck up, put the biotches in the boat and they fall on their face. I know of a couple of my own brand that have run better numbers with stock Merc Perf motors than they run with the other guys monster chit.
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